Connecting components, power supply devices, electronic equipment and systems

Abstract

The present invention realizes a device that can be used for a long time. The present invention provides a power source that is easy to load and unload and does not fall off during use, a method for connecting a power source, or a connecting component. The present invention provides a power source that can be easily replaced, a method for connecting a power source, or a connecting component. The present invention provides a power source with high design. Power from a battery is supplied to an electronic device through a connecting component including a pipe, a spring, and a pair of pivot hinges. The pair of pivot hinges are electrically insulated from each other and electrically connected to one of a pair of electrodes of the battery. The electronic device in which the pair of pivot hinges are inserted includes a pair of bearing portions that can receive power.

Description

[0001] This application is a divisional application of the application number 202110518674.0, filed on May 12, 2021, with the invention title “Connection component, power supply device, electronic device and system”. The application number 202110518674.0 is a divisional application of the application number PCT / IB2017 / 050834, filed on February 15, 2017, entered the Chinese national phase on August 16, 2018, with the national application number 201780011715.9, and the invention title “Connection component, power supply device, electronic device and system”. Technical Field

[0002] One embodiment of the present invention relates to a battery. One embodiment of the present invention relates to a power transmission mechanism of a battery. One embodiment of the present invention relates to a wearable electronic device. One embodiment of the present invention relates to a system for charging and discharging a battery.

[0003] Note that one embodiment of the present invention is not limited to the above-mentioned technical field. Examples of the technical field of one embodiment of the present invention disclosed in this specification include semiconductor devices, display devices, light-emitting devices, power storage devices, storage devices, electronic devices, lighting devices, input devices, input-output devices, driving methods of these devices, and manufacturing methods of these devices. Background Art

[0004] Portable information terminals such as smartphones and tablet devices are being actively developed. For example, these portable information terminals are required to be lightweight and small.

[0005] In recent years, wearable electronic devices (also called wearable devices) have been actively developed. Examples of wearable devices include watch-type devices worn on the arm, glasses-type devices worn on the head, and top-chain devices worn on the neck. For example, a watch-type device includes a small display instead of a traditional dial to provide the user with various information other than time. Such wearable devices have attracted attention for use in medical treatment, self-health management, etc., and are becoming practical.

[0006] In many cases, portable devices include secondary batteries that can be repeatedly charged and discharged. In particular, wearable devices include small secondary batteries, so the secondary batteries should be lightweight and small, and should be usable for a long time.

[0007] For example, Patent Document 1 discloses a wearable device including a flexible secondary battery using a film as its outer package.

[0008] [References]

[0009] [Patent Document]

[0010] [Patent Document 1] Japanese Patent Application Publication No. 2015-038868 Summary of the invention

[0011] An object of one embodiment of the invention is to achieve a device that can be used for a long time.

[0012] Another object of one embodiment of the present invention is to provide a power supply device that is easy to load and unload and does not fall off during use. Another object is to provide a power supply device that can be easily replaced. Another object is to provide a power supply device with high design. Another object is to provide a power supply device that is comfortable to wear.

[0013] Another object is to provide a connection method or a connection component for such a power supply device. Another object is to provide a device that can be connected to such a power supply device. Another object is to provide an electronic device using such a power supply device and a system including the electronic device.

[0014] One embodiment of the present invention is a connecting component including a pair of pivots, a pipe and a spring. Each pivot includes a tip, a loop, a shaft and an end. The spring is located in the pipe and between the pair of pivots. The end is a portion located in the pipe. The tip and the loop are portions protruding from the pipe in a natural state. The shaft is a portion located between the loop and the end. The shaft includes a portion protruding from the pipe in a natural state and located in the pipe when the spring is compressed. The shaft and the tip both have conductive portions. The pair of pivots are electrically insulated from each other.

[0015] In the above, each end surface of the pair of pivot hinges and a surface of a portion of the shaft portion on the end side preferably have insulating properties.

[0016] In addition, it is preferred to provide two springs and to provide a buffer component between the two springs. In this structure, the surface of the buffer component is preferably insulating. In addition, in this structure, it is preferred to integrate the buffer component and the pipe.

[0017] In the above, the surface of the spring preferably has insulating properties.

[0018] Another embodiment of the present invention is a power supply device, comprising the above-mentioned connecting component, a battery and a strip-shaped outer packaging body. The battery includes a pair of electrodes. The pair of electrodes are electrically connected to the shaft. The outer packaging body covers the battery and the pipe of the connecting component. The tip of the connecting component is not covered by the outer packaging body.

[0019] The structure preferably includes a pair of conductive components. The conductive components are preferably electrically connected to the electrodes of the battery. The shaft is preferably fitted to the conductive components in a manner that they are in contact with each other.

[0020] In the above, the shaft portion is preferably fitted to the conductive member so as to be rotatable in the rotation direction and slidable in the extending direction of the shaft portion.

[0021] In the above, the shaft portion is preferably fitted to the conductive member so as to be fixed in the rotation direction and slidable in the extending direction of the shaft portion.

[0022] In the above, the outer package preferably has flexibility. The battery preferably has a function of changing its shape as the outer package is deformed.

[0023] Another embodiment of the present invention is an electronic device to which the above-mentioned connecting component or the above-mentioned power supply device can be installed. The electronic device includes a frame and a power supply control circuit. The frame includes a pair of bearing parts. The power supply control circuit is arranged in the frame. The bearing part can be electrically connected to the tip end of the connecting component. The pair of bearing parts are preferably each electrically connected to the power supply control circuit through wiring.

[0024] In the above, the frame preferably includes a sensor having a function of detecting whether the pair of bearing portions are electrically insulated or electrically connected to each other.

[0025] In the above, the housing preferably includes a sensor having a function of detecting a potential difference between the pair of bearing portions.

[0026] Another embodiment of the present invention is a system including a pair of bearing parts, a control part, a power control part, a first battery, a sensor and a functional circuit. The sensor has a function of outputting the potential difference between the pair of bearing parts to the control part as potential information. The power control part is controlled by the control part and has a function of outputting any one of the power of the first battery and the power supplied from the pair of bearing parts to the functional circuit. The control part has a function of controlling the power control part to output the power of the first battery when the potential information is information showing any one of a conductive state, an insulating state and a state where the potential difference is below a predetermined value. In addition, the control part has a function of controlling the power control part to output the power supplied from the pair of bearing parts when the potential information is information showing a state where the potential difference is above a predetermined value.

[0027] The above structure preferably includes a power receiving unit. The power control unit preferably has a function of outputting the power supplied from the power receiving unit to the first battery and the pair of bearing units. In addition, the control unit preferably has a function of controlling the power control unit to output the power supplied from the power receiving unit to the pair of bearing units when the potential information is information indicating a state where the potential difference is below a predetermined value.

[0028] According to one embodiment of the present invention, a device that can be used for a long time can be realized. A power supply device that is easy to load and unload and does not fall off during use can be provided. A power supply device that is easy to replace can be provided. A power supply device with high design can be provided. A power supply device that is comfortable to wear can be provided.

[0029] According to one embodiment of the present invention, a connection method or a connection component for such a power supply device can be provided. A device that can be connected to such a power supply device can be provided. An electronic device in which such a power supply device is used and a system including the electronic device can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In the attached picture:

[0031] Figures 1A to 1E All show electronic devices, power supply devices, and connecting components of embodiments;

[0032] Figures 2A to 2E All show the connection parts of the embodiments;

[0033] Figures 3A to 3D All show power supply devices of embodiments;

[0034] Figures 4A to 4G All show conductive components of embodiments;

[0035] Figure 5A and 5B A power supply device according to an embodiment is shown;

[0036] Fig. 6A and 6B A power supply device according to an embodiment is shown;

[0037] Fig. 7A and 7B All show power supply devices of embodiments;

[0038] Figures 8A to 8D All show electronic devices of embodiments;

[0039] Fig. 9A and 9B A system representing an implementation method;

[0040] Fig.10 A method of operation of a system representing an embodiment;

[0041] Fig.11 A method of operation of a system representing an embodiment;

[0042] Fig.12 A method of operation of a system representing an embodiment;

[0043] Figures 13A to 13E All show electronic devices of embodiments;

[0044] Fig.14A and 14B All show electronic devices of embodiments;

[0045] Fig.15 The structure of the secondary battery of the embodiment is shown;

[0046] Fig.16A and 16B The structure of the secondary battery of the embodiment is shown;

[0047] Figures 17A to 17C A method for manufacturing a secondary battery according to an embodiment is shown;

[0048] Fig.18A and 18B A method for manufacturing a secondary battery according to an embodiment is shown;

[0049] Fig.19A and 19B A method for manufacturing a secondary battery according to an embodiment is shown;

[0050] Fig. 20A and 20B The structure of a secondary battery and a method for manufacturing the same are shown. DETAILED DESCRIPTION

[0051] The embodiments are described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the following description. A person skilled in the art can easily understand that the method and details can be transformed into various forms without departing from the purpose and scope of the present invention. Therefore, the present invention should not be interpreted as being limited to the contents described in the embodiments shown below.

[0052] Note that in the structure of the present invention described below, the same reference numerals are used in common in different drawings to represent the same parts or parts with the same function, and repeated description is omitted. In addition, sometimes the same hatching is used for parts with the same function, and no reference numeral is particularly added to represent the part.

[0053] Note that in the drawings described in this specification, the size, thickness of a layer, and region of each component may be exaggerated for easy understanding, and therefore, the size, thickness of a layer, or region is not necessarily limited to the above dimensions.

[0054] In this specification and the like, ordinal numbers such as “first” and “second” are added to avoid confusion among constituent elements, and are not intended to limit the number.

[0055] (Implementation Method 1)

[0056] One embodiment of the present invention is a connecting component including a pipe, a spring, and a pair of pivots. For example, in a watch-type device, the connecting component can be used as a spring bolt for mounting a band (also called a strap, a tight band, etc.) to a frame (also called a body, a container, etc.). Note that hereinafter, the connecting component of one embodiment of the present invention is sometimes referred to as a spring bolt.

[0057] The hinges of the connecting components of one embodiment of the present invention each include a tip, a ring, a shaft and an end. A pair of hinges are electrically insulated from each other. The tip and the shaft of the hinge are electrically connected to each other and their surfaces are conductive.

[0058] The shaft of the hinge can be electrically connected to one of a pair of electrodes (ears, wiring, etc.) of the battery. In this structure, the pair of hinges in the connecting member are insulated from each other, thereby preventing the pair of electrodes of the battery from being electrically connected to each other. Therefore, the two tip portions located at both ends of the connecting member are electrically connected to either of the pair of electrodes of the battery. That is, the two tip portions can be used as a pair of terminals of the battery.

[0059] In this way, the connecting component connected to the battery is installed in the electronic device so that the battery can be used as an auxiliary power supply of the electronic device. Specifically, the electronic device is provided with a pair of bearings on which the connecting component can be installed, and the power from the battery is supplied to the electronic device through the bearings and the connecting component.

[0060] In the case where a secondary battery is used as a battery, the battery can be charged through the bearing portion and the connecting member of the electronic device. The electronic device itself may have a battery used as a main power source. At this time, it is preferred that it is preset or the user can select which battery is charged first, the battery installed in the electronic device through the connecting member or the battery included in the electronic device itself.

[0061] As the battery, a battery that uses a flexible film for its outer packaging and can be bent and straightened repeatedly is preferably used. This allows the battery and part of the connecting parts to be arranged inside the strip-shaped outer packaging. Therefore, the appearance or wearing feeling of the strip-shaped outer packaging is equivalent to the appearance or wearing feeling of a conventional belt (belt, tight belt, etc.) that does not include a battery.

[0062] Note that when a non-bendable battery is used as the battery, the battery can be arranged in a non-bend position in the strip-shaped outer package. As the battery at this time, various batteries such as coin-shaped (or button-shaped) batteries, cylindrical batteries, or prismatic batteries can be used.

[0063] This strip-shaped power supply device can be installed in the electronic device using the above-mentioned connecting parts, so that the user can easily replace it. For example, in the case where the battery charge is reduced, the battery is deteriorated, and a primary battery is used as a battery, the battery can be easily replaced. In the case where an auxiliary power supply is not required, the user can use a conventional spring bolt to replace the power supply device with a conventional belt (without a battery). The user has the freedom to choose the strip-shaped power supply device or the conventional belt according to the purpose or his / her preference and can install one of them in the electronic device.

[0064] An electronic device in which a connection member or a power supply device according to an embodiment of the present invention can be mounted preferably has a function of detecting a potential difference between a pair of bearing portions or a function of detecting a conduction state or an insulation state between a pair of bearing portions.

[0065] For example, when a connecting component of an embodiment of the present invention or a conventional spring bolt is not installed in an electronic device, a pair of bearing portions are insulated from each other and each bearing portion is in an electrically floating state. In addition, when a connecting component of an embodiment of the present invention is installed in an electronic device without connecting a battery, a pair of bearing portions are electrically insulated from each other. When a conventional spring bolt is installed in an electronic device, the pair of bearing portions are in an insulating state or a conductive (short-circuited) state depending on the material of the spring bolt. When it is detected as described above that a pair of bearing portions are electrically connected or insulated from each other, it can be determined that the electronic device is not installed with a connecting component connected to a battery, and therefore the electronic device can operate using the power of other batteries included in the electronic device itself.

[0066] In contrast, when the connection component of one embodiment of the present invention connected to a battery is mounted on an electronic device, a potential difference corresponding to the output voltage of the battery is generated between the pair of bearings. By detecting the potential difference, it can be determined whether the connection component connected to the battery is mounted, and the electronic device can operate using the power supplied from the battery.

[0067] Hereinafter, specific configuration examples of a connection member, a power supply device, and an electronic device according to an embodiment of the present invention and an example of a system according to an embodiment of the present invention will be described with reference to the drawings.

[0068] [Application Examples]

[0069] First, an example of an electronic device equipped with the connection member and the power supply device described below will be described. As an example of the electronic device, a wristwatch type information terminal device will be described.

[0070] Figure 1A and Figure 1B An example of an electronic device 30 to which a connection member 10, a power supply device 20a, and a power supply device 20b are connected is shown. Figure 1A is a front view and Figure 1B It is a side view.

[0071] The electronic device 30 includes a housing 31 and a switch 35. The switch 35 is disposed on a side surface of the housing 31. The housing 31 includes a display portion 32, a lug 33, and a bearing portion 34.

[0072] Various image information can be displayed on the display section 32. A display device using a display element such as a liquid crystal element or an organic EL element can be used for the display section 32. In addition, a touch screen used as a touch sensor is preferably used for the display section 32.

[0073] Note that, in order to use the electronic device 30 as an analog watch instead of an information terminal device, a dial including at least one of the hour hand, minute hand, and second hand may be used instead of the display portion 32. In order to use the electronic device 30 as a digital watch, a dial including a segmented liquid crystal element or the like may be used instead of the display portion 32.

[0074] The switch 35 is used as one of the user interfaces. For example, the user can press, pull out, rotate, or slide the switch 35 up and down or back and forth. The electronic device 30 can start or switch applications or perform other processing according to these operations. Note that although the example in which the frame 31 includes a switch 35 is described here, the frame 31 may also include other switches, etc.

[0075] The shell angle 33 arranged on the frame 31 is a portion to which a spring bolt or the like is mounted in addition to the connecting member 10. In addition, a portion of the frame 31 can be used as the shell angle 33. In the frame 31, a pair of shell angles 33 are symmetrically arranged. The pair of shell angles 33 face each other. Each shell angle 33 includes a bearing portion 34 on its inwardly facing surface. Therefore, the connecting member 10 can be mounted on the pair of bearing portions 34 facing each other.

[0076] Each bearing portion 34 includes a recessed portion into which a tip end portion 12a of a pivot hinge 12 included in the connecting member 10 described later is inserted. The bearing portion 34 includes a conductive portion to which the potential of the tip end portion 12a is supplied.

[0077] The power supply device 20 a and the power supply device 20 b are both used as a wearing device (band, belt, tight band, etc.) used when the electronic device 30 is worn on a wrist or the like.

[0078] The power supply device 20a and the power supply device 20b both include a strip-shaped outer package 21. A battery 22 is disposed inside the outer package 21. The connecting member 10 is provided in a manner of partially protruding from the outer package 21. The battery 22 includes a pair of tabs 23, each of which is connected to a conductive member 25. The conductive member 25 is engaged with a shaft portion 12c of a pivot hinge 12 included in the connecting member 10, which will be described later, so that the conductive member 25 and the pivot hinge 12 are electrically connected to each other.

[0079] The pair of tabs 23 of the battery 22 are both electrically connected to the bearing portion 34 through the connection member 10. Therefore, the electronic device 30 can be powered from the battery 22 and the battery 22 can be charged by the electronic device 30.

[0080] Note that although the example in which two power supply devices 20a and 20b are mounted on the electronic device 30 is shown here, either one may be replaced by a common wearing device (belt, cinch, belt, etc.).

[0081] [Configuration example of connecting parts]

[0082] Figure 1C It is a schematic cross-sectional view in a direction parallel to the axial direction of the connecting member 10 .

[0083] The connecting component 10 includes a pipe 11 , a pair of pivot hinges 12 and a spring 13 .

[0084] The pivot hinge 12 includes, in order from the outside, a tip portion 12a, a ring portion 12b, a shaft portion 12c, and an end portion 12d.

[0085] The pipe 11 is hollow and narrow at its end. A spring 13 and the end 12d of a pair of pivot hinges 12 are arranged inside the pipe 11. In a natural state, the spring 13 is configured to be shorter than its natural length. Due to the restoring force of the spring 13, an outward force is applied to the pair of pivot hinges 12.

[0086] In the natural state, the tip portion 12a and the ring portion 12b are portions protruding from the pipe 11. In the natural state, the shaft portion 12c includes a portion protruding from the pipe 11. The shaft portion 12c also includes a portion where a portion of the shaft portion 12c is inserted into the pipe 11 when an external force is applied in the direction in which the spring 13 is compressed. In the natural state, the end portion 12d is a portion located inside the pipe 11. Here, the natural state is a state in which no external force is applied in the axial direction of the connecting member 10.

[0087] The diameter of the end portion 12d is larger than the diameter of the hole at the end of the pipe 11. The diameter of the shaft portion 12c is smaller than the diameter of the hole at the end of the pipe 11. Thus, even if a force is applied to the pivot hinge 12 from the spring 13, the pivot hinge 12 can be prevented from popping out of the pipe 11.

[0088] The tip portion 12a is a portion inserted into the hole of the bearing portion 34 of the electronic device 30. The ring portion 12b is a portion engaged with the recessed portion of the bearing portion 34. When the connecting member 10 is mounted on the electronic device 30 by not only inserting the tip portion 12a into the bearing portion 34 but also engaging the ring portion 12b with a part of the bearing portion 34, more stable engagement can be achieved.

[0089] The ring portion 12b can also be used as a portion to be engaged with a separation jig used when the connection component 10 is installed and removed. Thus, the connection component 10 can be easily installed or removed from the electronic device 30. The ring portion 12b has one or more portions whose diameter is larger than the tip portion 12a and the shaft portion 12c. Figure 1C As shown, the ring portion 12b preferably has two or more portions whose diameters are larger than other portions for improved convenience. For example, the separation jig can be located between the two portions having larger diameters.

[0090] Figure 1C The conductive member 25 mounted on the connecting member 10 is shown. The conductive member 25 includes a portion into which the shaft 12c is fitted. The conductive member 25 can be mounted on the shaft 12c in such a manner that the shaft 12c is fitted into the conductive member 25. Here, the conductive member 25 is preferably mounted on the shaft 12c in such a manner that it slides in the axial direction.

[0091] Figure 1D is from Figure 1C 1 is a cross-sectional schematic diagram of a state change, wherein an external force is applied to a pair of pivot hinges 12 and the spring 13 is compressed. Figure 1D As shown, the spring 13 is compressed by applying an external force, so that a part of the shaft portion 12 c is inserted into the pipe 11 .

[0092] Figure 1D The axial width of the conductive component 25 is equal to the axial width of the portion of the shaft portion 12c protruding from the pipe 11. One end of the conductive component 25 is in contact with the end of the pipe 11, and the other end of the conductive component 25 is in contact with the ring portion 12b. This can be said to be Figure 1D The central hinge 12 can no longer slide inward and the connecting member 10 is compressed to the bottom.

[0093] When the external force is relaxed, Figure 1D The status shown becomes Figure 1C At this time, the conductive component 25 mounted on the shaft portion 12c can slide, so that the conductive component 25 maintains the state shown. Figure 1C That kind of position.

[0094] Here, in Figure 1C and 1DIn the embodiment, the tip portion 12a, the ring portion 12b, and a portion of the shaft portion 12c have conductive surfaces. On the other hand, the other portion of the shaft portion 12c and the end portion 12d have insulating surfaces. Figure 1C and 1D In the diagram, different hatching is used for conductive and insulating surfaces.

[0095] Due to the insulating surface of the end portion 12d, the pair of hinges 12 can be electrically insulated from each other even if the spring 13 has conductivity.

[0096] Due to the insulation of the end portion 12d and a portion of the shaft portion 12c, even if the pipe 11 has conductivity, the pair of hinges 12 can be electrically insulated from each other. Figure 1D When the pivot 12 is located at the innermost side as shown, the portion of the shaft 12c that contacts the end of the pipe 11 has insulation. Figure 1C It is important that the conductive portion of the shaft portion 12 c contacts the conductive member 25 when the hinge 12 is located at the outermost side as shown.

[0097] In the case where both the surface of the end of the pipe 11 and the surface of the end of the conductive component 25 are conductive, Figure 1C As shown in FIG. 1 , when the conductive member 25 contacts the pipe 11, a pair of conductive members 25 may be electrically short-circuited. Figure 1E As shown, the insulating buffer material 14 is preferably disposed between the conductive member 25 and the pipe 11. As the buffer material 14, a ring-shaped component of rubber or plastic can be used.

[0098] Here, metal, typically stainless steel, can be used for the pipe 11, the hinge 12, and the spring 13. When such a metal is used, in order to insulate part or all of its surface, for example, a method of oxidizing the surface, a method of forming an insulating film by plating, or a method of covering the surface with an insulating resin or the like can be used. Insulating materials such as resin can also be used for the pipe 11, the hinge 12, and the spring 13. When using a resin, conductivity is added to part or all of its surface. For example, a method of forming a conductive coating by plating can be used.

[0099] Here, the structure of the connecting member 10 is not limited to Figure 1C As with the structures described in other drawings, it is sufficient that the pair of hinges 12 are electrically insulated from each other. Other examples of the connecting member 10 will be described below.

[0100] exist Figure 2AIn each of the pivots 12 included in the connecting member 10 shown, the surface of the shaft portion 12c and the surface of the end portion 12d are both conductive. At least the inner surface of the pipe 11 and the surface of the opening of the pipe 11 are insulating. The pipe 11 includes two springs (spring 13a and spring 13b) and a buffer material 15 therebetween. The buffer material 15 has an insulating surface.

[0101] exist Figure 2A In the embodiment, the spring 13a and the spring 13b are separated from each other by the buffer material 15. The spring 13a and the spring 13b are both in contact with the pipe 11, and the contact surface has insulating properties. Thus, the spring 13a and the spring 13b are electrically insulated from each other. Even in the case where the pair of pivot hinges 12 each have conductivity, the above structure prevents an electrical short circuit through the spring 13a and the spring 13b, and the pair of pivot hinges 12 are electrically insulated from each other.

[0102] In addition, due to this structure, the entire surface of the shaft portion 12c of the hinge 12 can be made conductive. This can increase the contact area of ​​the shaft portion 12c with the conductive member 25 and reduce the contact resistance therebetween.

[0103] Figure 2B The pipeline 11 is shown not including Figure 2A The buffer material 15 shown in the figure is an example including a partition wall 11a. The partition wall 11a is located in a substantially central portion of the duct 11 and has a function of separating the spring 13a from the spring 13b.

[0104] Figure 2C An example is shown in which the surface of the pipe 11 and the surface of the spring 13 each have insulating properties.

[0105] In the above structure, since the conductive member 25 contacts the shaft portion 12c of the hinge 12, the conductive member 25 and the hinge 12 are electrically connected. However, the structure is not limited thereto as long as the conductive member 25 and the tip portion 12a of the hinge 12 are electrically connected to each other.

[0106] Figure 2D The example in which the duct 11 includes a pair of conductive portions 11b and an insulating portion 11c located between the portions 11b is shown. The pair of portions 11b are electrically insulated from each other. The portions 11b are fitted into the conductive member 25. Thus, the hinge 12 and the conductive member 25 are electrically connected to each other via the portions 11b.

[0107] like Figure 2D As shown, it is preferable that the portion 11b and the portion 11c have a screw structure and are thereby fixed. Note that the portion 11b and the portion 11c may also be bonded to each other by an adhesive or the like.

[0108] Figure 2DThe example of the structure in which the spring 13a and the spring 13b are separated from each other by the buffer material 15 is shown, however, Figure 2B As shown in the structure, the spring 13a and the spring 13b can also be separated from each other by the partition wall 11a of the pipe 11. Figure 2E As shown in the figure, a structure including the spring 13 having an insulating surface instead of the cushioning material 15 may be used.

[0109] Above are instructions for connecting the components.

[0110] [Battery structure example]

[0111] Next, a structural example of the battery 22 that can be used in the power supply device 20 will be described.

[0112] Figure 3A 2 is a schematic plan view of a battery 22 connected to a conductive member 25. The battery 22 includes a pair of tabs 23, an outer package 26, and a content 27. The battery 22 is preferably a secondary battery.

[0113] A flexible and highly moisture-proof film can be used for the outer package 26. For example, a laminated film of a metal film and a plastic film is preferably used. This can realize a bendable battery 22.

[0114] The content 27 is sealed by the outer package 26. The outer package 26 is heat-pressed and bonded to the outside of the content 27. The content 27 contains at least a positive electrode, a negative electrode, and an electrolyte. The details will be described later.

[0115] The pair of tabs 23 are each electrically connected to one of the positive electrode and the negative electrode. The tabs 23 partially protrude from the outer package 26 and are not covered.

[0116] Each of the pair of tabs 23 is joined to the conductive member 25 by a joining method such as ultrasonic welding.

[0117] The battery 22 may include protection circuitry. Figure 3B An example is shown in which a substrate 29 including a protection circuit 28 is provided.

[0118] For example, a printed circuit board (PCB; Printed Circuit Board) or a flexible printed circuit (FPC; Flexible printed circuit) can be used as the substrate 29. Figure 3B In the example shown, the protection circuit 28 is an IC chip mounted on a substrate 29 .

[0119] As the protection circuit 28, a circuit having a function of stopping charging when the battery 22 is overcharged or stopping discharging when the battery 22 is overdischarged can be used. In addition, the protection circuit 28 preferably has a function of preventing a high current from flowing when the positive and negative electrodes are electrically short-circuited.

[0120] The substrate 29 includes a pair of electrodes connected to the tabs 23. The substrate 29 also includes a pair of electrodes connected to the wiring 24. The tabs 23 and the wiring 24 are respectively bonded to the corresponding electrodes of the substrate 29 by a bonding method such as ultrasonic welding.

[0121] The wiring 24 electrically connects the conductive member 25 to the substrate 29. As the wiring 24, cable wiring or FPC can be used.

[0122] Note that a connection method using a connector may be used in order to connect the tab 23 and the substrate 29 , the wiring 24 and the substrate 29 , and the wiring 24 and the conductive member 25 .

[0123] Note that although Figure 3A and 3B Although a structural example of the battery 22 using a film as the outer casing 26 is shown, the structure is not limited to this and a coin-type (button-type) battery may also be used.

[0124] Figure 3C An example in which a coin-type battery 41 is used is shown. Figure 3D An example is shown in which the substrate 29 including the protection circuit 28 is connected to the battery 41 .

[0125] Part of the outer package of the battery 41 (the top side and the back side) is used as the positive electrode and the negative electrode. Figure 3C As shown, the electrode 42a is electrically connected to the electrode on the back side of the battery 41, and the electrode 42b is electrically connected to the electrode on the top side of the battery 41. The electrode 42a and the electrode 42b are connected to the conductive member 25, respectively.

[0126] In order to install the coin-type battery 41 in Figure 1A In the power supply device 20 of the watch-type electronic device 30 shown in other drawings, the battery 41 is preferably located at a position where the outer packaging body 21 of the power supply device 20 is not bent when worn on an arm, etc. For example, the battery 41 is preferably located at a position close to or far from the electronic device 30 in the power supply device 20, and the battery 41 is not located near the center.

[0127] The battery instructions are above.

[0128] [Conductive parts]

[0129] Next, an example of the conductive member 25 for electrically connecting the electrode (tab) of the battery and the connecting member 10 will be described.

[0130] Figure 4A 1 is a schematic perspective view illustrating a portion of the conductive member 25 and the shaft portion 12c of the pivot hinge 12. Note that although the conductive member 25 is connected to the shaft portion 12c as an example here, by increasing the diameter of the conductive member 25, such as Figure 2D The conductive member 25 may also be connected to a portion of the pipe 11 as shown in other figures.

[0131] Figure 4A The conductive member 25 shown includes a tubular portion having a hole into which the shaft portion 12c fits and a leg portion that is joined to a tab of a battery or the like. Figure 4A In the example of FIG. 1 , the cross section of the tubular portion of the conductive component 25 is annular and the cross section of the shaft portion 12c is circular. Thus, the conductive component 25 and the shaft portion 12c may have a conductive component 25 in the form of Figure 4A The structure is capable of rotating the periphery of the shaft portion 12c in the rotation direction indicated by the arrow in FIG. 1 and of sliding in the extending direction of the shaft portion 12c.

[0132] Figure 4B An example is shown in which the cross section of the shaft portion 12c has a partially cut-away shape. The shape of the hole of the conductive component 25 is also similar to the cross section of the shaft portion 12c so as to be fitted into the shaft portion 12c. This structure can connect the conductive component 25 and the shaft portion 12c in a state where they are fixed in the rotation direction and can slide in the extending direction of the shaft portion 12c.

[0133] like Figure 4C As shown, the cross section of the shaft portion 12c may be substantially polygonal. Figure 4C The example in which the cross section of the shaft portion 12c is a square with rounded corners is shown. This structure can also connect the conductive member 25 and the shaft portion 12c in a state where they are fixed in the rotation direction and slidable in the extending direction of the shaft portion 12c.

[0134] like Figure 4A , 4B As shown in FIGS. 4C, a part of the conductive member 25 is preferably tubular because the contact area between the conductive member 25 and the shaft portion 12c can be increased. The tubular conductive member 25 can also be formed by using a material compressed by heat or the like as the conductive member 25, inserting the conductive member 25 having a diameter larger than the ring portion 12b from the side of the tip portion 12a, and then compressing the diameter by heat or the like. Alternatively, the tubular portion of the conductive member 25 is formed by winding a band-shaped member around the shaft portion 12c.

[0135] Figure 4D An example is shown in which the conductive member 25 has a partially cut-out tubular shape (also referred to as a shape having an arc-shaped cross section). Figure 4DIn the embodiment, a portion of the side opposite to the leg portion is cut out. Due to this structure, the shaft portion 12c and the conductive member 25 can be easily attached and detached.

[0136] exist Figure 4D In the embodiment, the conductive member 25 is connected to the shaft portion 12c so that the shaft portion 12c can rotate in the rotation direction and can slide in the extending direction of the shaft portion 12c.

[0137] Figure 4E The position of the cutout portion of the conductive member 25 is shown. Figure 4D An example in which the position of the cut-out portion of the conductive component 25 is different.

[0138] Figure 4F and 4G The examples in which the cross section of the shaft portion 12c is not circular are shown. This structure can connect the conductive component 25 and the shaft portion 12c in a state where the conductive component 25 is fixed in the rotation direction and can slide in the extension direction of the shaft portion 12c. In addition, the conductive component 25 and the shaft portion 12c can be easily attached and detached.

[0139] The above is a description of the conductive parts.

[0140] [Configuration example of power supply device]

[0141] The example of the power supply device that can be installed in the electronic device will be described below. In particular, the power supply device that can be used for the watch type electronic device 30 will be described here.

[0142] Figure 5A is a schematic perspective view of the power supply device 20a and Figure 5B 2 is a schematic perspective view illustrating the internal structure of the power supply device 20a.

[0143] The power supply device 20a includes a connection member 10, a battery 22, an outer package 21a, an outer package 21b, a clasp 51, etc. The connection member 10 partially protrudes from the power supply device 20a.

[0144] like Figure 5B As shown, the battery 22 is located between the outer packaging body 21a and the outer packaging body 21b. The recessed portion for arranging the battery 22 is formed on the inner side of the outer packaging body 21a and the outer packaging body 21b. Due to this structure, the thickness of the part including the battery 22 and the part not including the battery 22 can be made uniform, thereby improving the wearing feeling.

[0145] As the outer packaging body 21a and the outer packaging body 21b, materials used for ordinary belts (without batteries) etc. can be used. For example, any of various materials such as rubber, leather, cloth, metal, resin, etc. can be used. Rubber or resin is particularly preferred because it is easy to shape.

[0146] Fig. 6A and 6B 2 is a schematic perspective view of a power supply device 20b, which corresponds to the power supply device 20a. The power supply device 20b includes a connecting component 10, a battery 22, an outer package 21c, an outer package 21d, and the like.

[0147] The exterior bodies 21 c and 21 d are different from the exterior bodies 21 a and 21 b in that a plurality of holes 52 are provided instead of the buckle 51 .

[0148] In this way, the power supply device 20a and the power supply device 20b can have an appearance shape that is roughly the same as a combination of a conventional spring bolt and a conventional wearing device (without batteries, etc.), such as a belt, a tight belt or a strap.

[0149] The power supply devices 20a and 20b mounted on the electronic device 30 are used not only as wearing accessories but also as auxiliary power supplies or main power supplies for the electronic device 30.

[0150] By using the power supply device 20a or the power supply device 20b of one embodiment of the present invention, it is not necessary to carry an auxiliary power supply separately, thereby improving convenience. In addition, unlike the conventional electronic device 30 provided with a wearing device, the electronic device 30 equipped with the power supply device 20a or 20b does not need to be connected to the auxiliary power supply. Therefore, even if connected to the auxiliary power supply, the electronic device 30 equipped with the power supply device 20a or 20b is small and does not hinder the user's movement. In addition, it is not necessary to connect the auxiliary power supply to the electronic device 30 by using a connector, etc., so there is no risk of the auxiliary power supply being removed. It is not necessary to provide the electronic device 30 with a terminal for the connector, thereby realizing an electronic device with high moisture resistance and high design.

[0151] When outer package 26 of battery 22 included in power source device 20a and power source device 20b has an uneven surface, reliability of battery 22 that is repeatedly bent can be improved.

[0152] Fig. 7A An example is shown in which the outer packaging body 26 has a cross-embossed surface. Figure 7B An example is shown in which the outer packaging body 26 has a stripe embossed surface.

[0153] When the battery 22 is bent, the outer package 26 having an uneven surface is deformed so that the convex and concave portions outside the bent portion are straightened and the convex and concave portions inside the bent portion are compressed. Thus, the pressure applied to the outer package 26 can be relieved.

[0154] Above is the description of the power supply unit.

[0155] [Structural example of electronic equipment]

[0156] A specific structural example of an electronic device that can receive power from the above-mentioned power supply device will be described below.

[0157] Fig. 8A 3 is a schematic diagram for explaining the main parts of the electronic device 30. The electronic device 30 includes a control unit 61, a power supply control unit 62, a functional circuit 63, etc. in a housing 31, and also includes a bearing unit 34 in a housing 33.

[0158] The bearings 34 are arranged so as to face the pair of housing corners 33 facing each other. The bearings 34 each have a function of fixing the connection member 10 and serve as a terminal to which the potential of the tip end portion 12a of the connection member 10 is supplied.

[0159] Fig. 8A The example in which the bearings 34 are provided at a pair of upper shell corners 33 and a pair of lower shell corners 33 of the frame body 31 is shown. These four bearings 34 are electrically connected to the power supply control unit 62.

[0160] The power supply control unit 62 has a function of controlling the charging and discharging of the power supply device 20 mounted on the electronic device 30, and also has a function of outputting the power obtained from the power supply device 20 to the control unit 61 and the functional circuit 63. The power supply control unit 62 may also have a function of converting the power supply voltage of the power supply device 20 into a voltage suitable for supplying to the control unit 61 and the functional circuit 63.

[0161] The control unit 61 has a function of controlling the operations of the power supply control unit 62 and the functional circuit 63 .

[0162] As the functional circuit 63, for example, an input device or an output device can be used. Examples of the input device include various switches, sensors (including touch sensors or biosensors), audio input devices, etc. Examples of the output device include a display device, an audio output device, a vibration device, and a light-emitting device.

[0163] Figure 8B A more specific structural example of the electronic device 30 is shown. Figure 8B It is shown Fig. 8A Schematic diagram of the internal structure of the electronic device 30 in the area R shown by the dotted line in FIG.

[0164] Figure 8B An electronic device 30 is shown to which the connection component 10 is connected. Figure 8B The conductive member 25 attached to the shaft portion 12c of the connection member 10 and the tab 42 joined to the conductive member 25 are shown. The outer package 21 covering the connection member 10, the conductive member 25 and the tab 42 is shown by a dotted line.

[0165] The bearing portion 34 provided in the housing angle 33 includes a terminal 71 that is fitted with the tip portion 12a of the connection member 10. The terminal 71 is electrically connected to a wiring 72.

[0166] like Figure 8B As shown, a recessed portion that fits with the ring portion 12b of the connection member 10 is preferably formed in a portion of the housing corner 33. This can enhance stability when the connection member 10 is connected to the electronic device 30.

[0167] Figure 8B The example in which the power supply control unit 62 has the form of an IC chip and is mounted on a substrate 75 is shown. For example, a PCB or the like can be used as the substrate 75. The bearing unit 34 and the substrate 75 are electrically connected by wiring 72.

[0168] In addition, in this example, FPC 76 a and FPC 76 b are connected to the substrate 75 .

[0169] The FPC 76a is electrically connected to the substrate on which the control section 61 is mounted. For example, the FPC 76a includes wiring for supplying signals from the control section 61 to the power control section 62 and wiring for supplying power from the power control section 62 to the substrate on which the control section 61 is mounted.

[0170] For example, the FPC 76 b is electrically connected to the functional circuit 63 or the substrate on which the functional circuit 63 is mounted. Note that the number of FPCs 76 b may be two or more. In addition, the FPC 76 b may be divided and connected to a plurality of functional circuits 63. When the same power supply voltage is applied to the control unit 61 and the functional circuit 63, the FPC 76 b may be divided and the divided portion may be partially connected to the substrate on which the control unit 61 is mounted.

[0171] Due to this structure, when the power supply device 20 is connected to the electronic device 30 , the charge and discharge of the battery 22 (not shown) included in the power supply device 20 can be controlled through the connection member 10 and the bearing portion 34 .

[0172] Here, the bearing portion 34 preferably includes a gasket to prevent water or dust from entering the frame 31. If water contacts the terminal 71 of the bearing portion 34, there is a risk of short-circuiting the battery 22 and causing a high current to flow, so the provision of the gasket is particularly effective.

[0173] Figure 8C and 8D Both are enlarged views of the bearing portion 34 . Figure 8C An example is shown in which a buffer portion 73 a is provided at a portion of the housing corner 33 that fits with the ring portion 12 b. Fig.8DAn example is shown in which an annular buffer material 73b is arranged between the shell corner 33 and the ring portion 12b. For example, an elastic body such as rubber is preferably used for the buffer portion 73a and the buffer material 73b. Lubricating oil or the like may also be applied to the surface of the buffer portion 73a or 73b.

[0174] [About the system]

[0175] An example of a configuration of a system including the electronic device 30 , the power supply device 20 , and the connection member 10 , and an example of a method of controlling charging and discharging of batteries included in the electronic device 30 and the power supply device 20 will be described below.

[0176] (System configuration example)

[0177] Fig. 9A 2 is a block diagram of a system 50 exemplified below. The system 50 includes an electronic device 30 and a power supply device 20 .

[0178] Although the block diagrams attached to this specification show that constituent elements are divided into independent blocks according to their functions, it is difficult to classify constituent elements according to their functions in practice, and one constituent element may have a plurality of functions.

[0179] Fig. 9A The structure of the system 50 shown is only an example and does not necessarily include all the components. The system 50 includes Fig. 9A The components shown are essential components and may also include Fig. 9A Constituent elements other than the constituent elements in.

[0180] The electronic device 30 includes a control unit 61, a power supply control unit 62, a functional circuit 63, a sensor 64, a battery 65, a power receiving unit 66, a bearing unit 34, etc. The power supply device 20 includes a connection member 10, a battery 22, etc.

[0181] Since the above description can be referred to, the description of the power supply device 20 and the connecting member 10 is omitted.

[0182] For example, the control unit 61 may be used as a central processing unit (CPU). The control unit 61 has a function of controlling components such as the power supply control unit 62, the sensor 64, and the functional circuit 63.

[0183] The power receiving unit 66 has a function of receiving power supplied from the outside and supplying the power to the power supply control unit 62 .

[0184] When charging, a charger that can supply power to the power receiving unit 66 can be used. In this case, the power receiving unit 66 can receive power through wiring using a USB connector or an AC adapter, or the power receiving unit 66 can receive power through a wireless power supply method such as an electromagnetic coupling method, an electromagnetic induction method, or an electromagnetic resonance (electromagnetic resonance coupling) method.

[0185] The power generation device may be disposed in the electronic device 30 and used as one of the power receiving units 66. A solar cell may be typically used as the power generation device, and the power generation device may be disposed so as to overlap a portion of the display unit 32 or a portion of the frame 31 (including the housing corner 33). In addition, as the power generation device, for example, a device that generates power when the electronic device 30 is shaken, or a device that generates power when the power supply unit 20 is bent and straightened may be used.

[0186] The battery 65 is used as a main power source of the electronic device 30. The charging and discharging of the battery 65 is controlled by the power source control unit 62.

[0187] The power supply control unit 62 has a function of controlling the charge and discharge of the battery 65 and the battery 22. For example, the power supply control unit 62 preferably has a function of transmitting information on the remaining power of the battery 65 and the battery 22 to the control unit 61.

[0188] The sensor 64 has a function of obtaining the potential difference between the pair of bearings 34 and outputting the information to the control unit 61. For example, a digital signal corresponding to the potential difference between the bearings 34 can be output to the control unit 61 by using a comparison circuit or the like. Alternatively, an analog signal corresponding to the potential difference between the bearings 34 can be output to the control unit 61. In this case, it is preferable to use an analog-digital conversion circuit between the sensor 64 and the control unit 61.

[0189] In addition, the sensor 64 may have a function of outputting a signal to the control unit 61 when the potential difference between the pair of bearing parts 34 is outside a predetermined range. For example, when the potential difference exceeds the voltage of the fully charged state of the battery 22 specified by the rated voltage range or the like, or when the potential difference exceeds the voltage of the discharged state, the signal is output to the control unit 61.

[0190] The sensor 64 may also have a function of detecting the insertion of the connecting member 10, a common spring bolt, etc., into the pair of bearings 34 and outputting the detected information. For example, a sensor combining a light receiving element and a light source, a physical switch, etc. may be used. When it is determined that the pair of bearings 34 are not inserted, the electronic device 30 may use the battery 65 as a power source.

[0191] Fig. 9BExamples of components used for the functional circuit 63 are shown. As the functional circuit 63, a display device, a storage device, an audio controller, a communication module, a posture detection module, an external interface, a camera module, a vibration module, or various sensor modules can be cited. Note that not all components are necessarily used as the functional circuit 63. In addition, components other than these can also be used as the functional circuit 63. As the functional circuit 63, various components can be used in combination according to the structure, function, and purpose of the electronic device 30.

[0192] Each component that can be used as the functional circuit 63 is connected to the control section 61 through a bus 69. In addition, power is supplied from the power supply control section 62 through a power supply line 68 to each component.

[0193] The above is a description of a configuration example of the system.

[0194] The constituent elements included in the system 50 will be described below.

[0195] (Control Department)

[0196] The control unit 61 interprets and executes instructions from various programs by the processor, performs various data processing, and controls the programs. The programs that may be executed by the processor may be stored in a memory area or a storage device of the processor.

[0197] As the control unit 61, a CPU and other microprocessors such as a DSP (Digital Signal Processor) or a GPU (Graphics Processing Unit) can be used alone or in combination. In addition, such a microprocessor can be obtained by a PLD (Programmable Logic Device) such as an FPGA (Field Programmable Gate Array) or an FPAA (Field Programmable Analog Array).

[0198] Note that a transistor including an oxide semiconductor in a channel formation region and having an extremely small off-state current may also be used for an IC or the like included in the control unit 61 or other components. By using the transistor having an extremely low off-state current as a switch to maintain the charge (data) flowing into the capacitor used as a storage element, long-term retention of the data can be ensured. By applying this characteristic to a register or a cache memory of the control unit 61, the control unit 61 can be operated only when necessary, and the previously processed information can be stored in the storage element at other times, thereby realizing normally-off computing, thereby reducing the power consumption of the electronic device 30.

[0199] The control unit 61 may include a main memory. The main memory may include a volatile memory such as a RAM (Random Access Memory) or a nonvolatile memory such as a ROM (Read Only Memory).

[0200] For example, a dynamic random access memory (DRAM) is used for the RAM included in the main memory, and a storage space used as a work space of the control unit 61 is virtually allocated and used. The operating system, application program, program module, program data, etc. stored in the storage device are loaded into the RAM and executed. The data, program, and program module loaded into the RAM are directly accessed and operated by the control unit 61.

[0201] In ROM, a basic input / output system (BIOS) that does not need to be rewritten, firmware, etc. can be stored. As ROM, a mask ROM, a one-time programmable read-only memory (OTPROM), an erasable programmable read-only memory (EPROM), etc. can be used. As EPROM, there can be cited an ultraviolet-erasable programmable read-only memory (UV-EPROM; Ultra-Violet Erasable Programmable Read Only Memory) that can erase stored data by ultraviolet irradiation, an electronically erasable programmable read-only memory (EEPROM; Electrically Erasable Programmable Read Only Memory), a flash memory, etc.

[0202] (Power Control Department)

[0203] For example, the power supply control unit 62 may include a battery control unit (BMU). For example, the BMU collects battery cell voltage or cell temperature data, monitors overcharge and overdischarge, controls a cell balancer, manages battery degradation, calculates the remaining power (State Of Charge: SOC), and controls fault detection.

[0204] The power control section 62 controls the transmission of power to the components through the bus 69 or the power supply line. The power control section 62 may include a power converter having multiple channels, an inverter, a protection circuit, and the like.

[0205] The power control unit 62 preferably has a function of reducing power consumption. For example, as a function of reducing power consumption, after detecting that there is no input to the electronic device 30 within a predetermined period, the power control unit 62 reduces the clock frequency of the control unit 61 or stops the input of the clock, stops the operation of the control unit 61 itself, stops the operation of the auxiliary memory, and reduces the power supplied to the components to reduce power consumption. This function can be performed only by the power control unit 62 or the power control unit 62 and the control unit 61 in a chain.

[0206] (Battery)

[0207] For example, the battery 65 and the battery 22 each include one or more primary batteries or secondary batteries. Examples of secondary batteries that can be used as the battery 65 include lithium ion secondary batteries or lithium ion polymer secondary batteries. In addition to such batteries, the battery 65 may also be provided with a protection circuit to prevent overcharging and overdischarging.

[0208] When used indoors, etc., an external power source such as an alternating current (AC) power source may be used instead of the power supplied by the battery 65 and the battery 22. Alternatively, power supplied by wireless power supply may be used.

[0209] As the battery 65 and the battery 22, a battery including a coin-shaped (button-shaped) outer package, a cylindrical outer package, or a prismatic outer package can be used. In particular, a thin and light coin-shaped battery is preferably used as the battery 65 in the wearable device.

[0210] It is preferable to use a flexible battery as the battery 65 and the battery 22. In particular, it is preferable to use such a battery for the battery 22.

[0211] Examples of secondary batteries that can be used for the flexible battery include lithium ion secondary batteries or lithium ion polymer secondary batteries. A press-molded bag is preferably used as an outer package of the battery so that the battery has flexibility.

[0212] The film used for the press bag is a single-layer film selected from metal films (aluminum, stainless steel, nickel steel, etc.), plastic films formed of organic materials, mixed material films containing organic materials (organic resins or fibers, etc.) and inorganic materials (ceramics, etc.), carbon-containing inorganic films (carbon films, graphite films, etc.), or laminated films including two or more of the above films. The metal film is easily embossed. By forming concave or convex portions on the surface of the metal film through embossing, the surface area of ​​the film exposed to the outside air is increased, thereby achieving effective heat dissipation.

[0213] It is particularly preferred to use a molded bag made of a metal film having concave and convex portions formed by embossing, which can alleviate the stress caused by the pressure applied to the molded bag, thereby effectively reducing disadvantages such as damage to the molded bag caused by bending of the secondary battery.

[0214] (Functional Circuit)

[0215] Examples of components that can be used for the functional circuit 63 will be described below.

[0216] 〈Display device〉

[0217] As the display device, a segment display device, a passive matrix display device, an active matrix display device, etc. can be used. In addition, it is preferable to use a touch screen having a touch sensor function for the display portion.

[0218] The display device includes a display panel and a display controller. When a touch screen is used in the display device, the display panel may include a touch screen, a display controller, and a touch sensor controller. Note that in an In-Cell type touch screen, the display controller is sometimes also used as a touch screen controller. The case where a touch screen is particularly used will be described in detail below.

[0219] The touch screen is connected to the display controller and the touch sensor controller. The display controller and the touch sensor controller are connected to the control unit 61 via a bus 69 .

[0220] The display controller controls the touch screen in response to a drawing instruction from the control unit 61 via the bus 69 so that a predetermined image is displayed on the display surface of the touch screen.

[0221] The touch sensor controller controls the touch sensor of the touch screen in response to a request input from the control unit 61 via the bus 69. In addition, the touch sensor outputs a signal received by the touch sensor to the control unit 61 via the bus 69. Note that the touch sensor controller or the control unit 61 may also be given a function of calculating information on a touch position from a signal received by the touch sensor.

[0222] The touch screen can display images according to the signal supplied by the display controller. In addition, the touch screen can detect the approach or contact of a detected object such as a finger or a stylus pen according to the signal supplied from the touch sensor controller and output the position information of the detected object to the touch sensor controller.

[0223] The touch screen and touch sensor controller preferably have the function of obtaining the distance between the detection surface and the detected object in the height direction, the function of obtaining the pressure level applied to the detection surface by the detected object, and the function of obtaining the size of the surface of the detection surface in contact with the detected object.

[0224] In a touch screen, a module including a touch sensor may be arranged on one side of a display surface of the display panel in a manner overlapping the display panel. In this case, at least a portion of the module including the touch sensor is preferably flexible and bends along with the display panel. The module including the touch sensor may be bonded to the display panel with an adhesive or the like. A polarizer or a buffer material (e.g., an insulator) may also be arranged between the module and the display panel. The thickness of the module including the touch sensor is preferably less than the thickness of the display panel.

[0225] A touch screen that combines a display panel with a touch sensor can also be used as a touch screen. For example, the touch screen is preferably an On-Cell touch screen or an In-Cell touch screen. The On-Cell or In-Cell touch screen is thin, so it can be lightweight. In addition, since the number of components of the On-Cell or In-Cell touch screen can be reduced, the cost can be reduced.

[0226] As the touch sensor included in the touch screen, various sensors that detect the approach or contact of a detected object such as a finger can be used. For example, a capacitive, resistive film, surface acoustic wave, infrared, electromagnetic induction, or optical sensor can be used. In addition, an optical sensor using a photoelectric conversion element, a pressure-sensitive sensor using a pressure-sensitive element, etc. can also be used. Two or more sensors of different types can be used, or two or more sensors of the same type can be used.

[0227] Examples of capacitive touch sensors are surface capacitive touch sensors and projection capacitive touch sensors. Examples of projection capacitive touch sensors include self-capacitive touch sensors and mutual capacitive touch sensors. It is preferable to use a mutual capacitive touch sensor because it is easy to perform simultaneous detection of multiple points.

[0228] A flexible touch screen, display panel, touch sensor, etc. can be used. For example, this can be achieved by using a flexible substrate as a substrate for supporting a display element, a circuit for driving the display element, a circuit included in a touch sensor, etc.

[0229] A typical example of a material for a flexible substrate is an organic resin. Alternatively, sufficiently thin and flexible glass, metal, alloy, semiconductor, etc., or a composite material or laminated material containing two or more of organic resin, glass, metal, alloy, semiconductor, etc. may be used.

[0230] As a display element included in the touch screen, a self-luminous light-emitting element such as an organic light-emitting diode (OLED: Organic Light Emitting Diode), a light-emitting diode (LED: Light Emitting Diode) or a quantum dot light-emitting diode (QLED: Quantum-dot Light Emitting Diode) can be used. Alternatively, a transmissive, reflective or semi-transmissive liquid crystal element can be used. In addition, for example, a display element such as a microelectromechanical system (MEMS: MicroElectro Mechanical Systems) element or an electron emitter can be used. Examples of MEMS display elements include MEMS shutter display elements, MEMS display elements of an optical interference method, and the like. Carbon nanotubes can also be used for electron emitters. In addition, electronic paper can also be used. As electronic paper, elements using a microcapsule method, an electrophoresis method, an electrowetting method, an electronic powder fluid (registered trademark) method, and the like can be used.

[0231] 〈Storage Device〉

[0232] Examples of the storage device include a storage device including a nonvolatile storage element, such as a flash memory, a magnetic random access memory (MRAM), a phase change random access memory (PRAM), a resistance random access memory (ReRAM), a ferroelectric random access memory (FeRAM), and a storage device including a volatile storage element, such as a dynamic random access memory (DRAM) or a static random access memory (SRAM). In addition, for example, a recording medium drive such as a hard disk drive (HDD) or a solid state drive (SSD) may also be used.

[0233] As the storage device, a storage device connected and disconnected to and from an external interface by a connector, such as an HDD or SSD, or a recording medium drive, such as a flash memory, a Blu-ray disc, or a DVD, may also be used. Note that the storage device is not necessarily built into the electronic device 30, and a storage device provided outside the electronic device 30 may also be used. In this case, the storage device may also be connected via an external interface, or may use a communication module to send and receive data wirelessly.

[0234] 〈Audio Controller〉

[0235] The sound controller has the function of controlling the audio input unit and the audio output unit. The audio input unit includes, for example, a microphone or an audio input connector. The audio output unit includes, for example, a speaker or an audio output connector. The audio input unit and the audio output unit are connected to the sound controller and connected to the control unit 61 through the bus 69. The audio data input to the audio input unit is converted into a digital signal in the sound controller and then processed in the sound controller or the control unit 61. On the other hand, the sound controller generates an analog audio signal that can be heard by the user in response to an instruction from the control unit 61 and outputs the analog audio signal to the audio output unit. To the audio output connector of the audio output unit, an audio output device such as earphones, headphones, headsets, etc. can be connected, and the sound generated in the sound controller is output to the device.

[0236] 〈Communication Module〉

[0237] The communication module can communicate through an antenna. For example, in response to an instruction from the control unit 61, the communication module controls a control signal for connecting the electronic device 30 to a computer network, and sends the signal to the computer network. Thus, the electronic device 30 can be connected to a computer network such as the Internet, an intranet, an extranet, a personal area network (PAN), a local area network (LAN), a campus area network (CAN), a metropolitan area network (MAN), a wide area network (WAN), or a global area network (GAN) based on the World Wide Web (WWW) to communicate. In the case of using multiple communication methods, the electronic device 30 may also have multiple antennas for each communication method.

[0238] For example, the high-frequency circuit (RF circuit) included in the communication module transmits and receives RF signals. The high-frequency circuit converts electrical signals into electromagnetic signals using frequency bands in accordance with the laws of various countries, and uses the electromagnetic signals to communicate wirelessly with other communication devices. Frequency bands of tens of kHz to tens of GHz are generally used practical frequencies. The high-frequency circuit connected to the antenna includes a high-frequency circuit unit compatible with multiple frequency bands, which may include amplifiers, mixers, filters, DSPs, RF transceivers, etc. The following communication protocols or communication technologies for wireless communication can be used: communication standards such as Long Term Evolution (LTE), Global System for Mobile Communications (GSM), Enhanced Data Rates for GSM Evolution (EDGE), Code Division Multiple Access 2000 (CDMA2000), Wideband Code Division Multiple Access (W-CDMA), or communication standards developed by IEEE, such as Wi-Fi (Wireless Fidelity: registered trademark), Bluetooth (registered trademark), ZigBee (registered trademark), etc.

[0239] In addition, the communication module may also have a function of connecting the electronic device 30 to a telephone line. When a call is made through the telephone line, the communication module controls a connection signal for connecting the electronic device 30 to the telephone line in response to an instruction from the control unit 61, and sends the signal to the telephone line.

[0240] The communication module may include a tuner that generates an image signal from a broadcast wave received by an antenna. The image signal is output to a touch screen, etc. For example, the tuner may include a demodulation circuit, an analog-to-digital conversion circuit (AD conversion circuit), and a decoder circuit, etc. The demodulation circuit has a function of demodulating a signal input from an antenna. The AD conversion circuit has a function of converting a demodulated analog signal into a digital signal. The decoder circuit has a function of decoding the image data contained in the digital signal to generate a signal sent to a display controller.

[0241] In addition, the decoder may also include a segmentation circuit and multiple processors. The segmentation circuit has the function of segmenting the input image data in time and space and outputting it to each processor. Multiple processors decode the input image data to generate signals sent to the display controller. Since this decoder includes multiple processors that process data in parallel, it is possible to decode image data with a large amount of information. In particular, in the case of displaying an image with a resolution exceeding full HD, the decoding circuit that decodes the compressed data preferably includes a processor with extremely high-speed processing capabilities. The decoder circuit preferably includes multiple processors that can perform parallel processing of more than 4, preferably more than 8, and more preferably more than 16. The decoder may also include a circuit that separates the image signal included in the input signal from other signals (text information, program information, authentication information, etc.).

[0242] The antenna is capable of receiving radio waves, such as terrestrial waves and satellite waves. The antenna is capable of receiving radio waves for analog broadcasting, digital broadcasting, etc., as well as broadcasting with only images and sounds or broadcasting with only sounds. For example, the antenna can receive radio waves transmitted by a specified frequency band in the UHF band (approximately 300MHz to 3GHz) or the VHF band (30MHz to 300MHz). When multiple data slices received in multiple frequency bands are used, the transmission rate can be increased, so that more information can be obtained. As a result, images with a resolution exceeding full HD, such as 4K-2K, 8K-4K, 16K-8K or higher, can be displayed on a touch screen, etc.

[0243] In addition, the tuner may be configured to generate a signal using broadcast data transmitted via a data transmission technique of a computer network. The signal is transmitted to the display controller. When the tuner receives a digital signal, the tuner does not necessarily include a demodulation circuit and an AD conversion circuit.

[0244] Posture Detection Module

[0245] The posture detection module has a function of detecting the inclination, posture, etc. of the electronic device 30. For example, an acceleration sensor, an angular velocity sensor, a vibration sensor, a pressure sensor, a gyro sensor, etc. can be used for the posture detection module. In addition, these sensors can also be combined.

[0246] 〈External Interface〉

[0247] Examples of the external interface include one or more buttons and switches (also referred to as frame switches) provided on the frame 31 and external ports that can connect other input components. The external interface is connected to the control unit 61 via the bus 69. Examples of the frame switch include a switch associated with turning the power on / off, a button for adjusting the volume, and a camera button.

[0248] For example, the external port of the external interface can be connected to an external device such as a computer, a printer, or an image reproduction device through a cable. The Universal Serial Bus (USB) is a typical example. As an external port, a terminal for connecting a local area network (LAN), a terminal for receiving digital broadcasts, a terminal for connecting an AC adapter, etc. can also be configured. In addition to wired communication, a transceiver for optical communication using infrared, visible light, ultraviolet light, etc. can also be configured.

[0249] 〈Camera Module〉

[0250] The camera module has the function of taking still images and moving images. For example, the camera module is connected to the control unit 61 via the bus 69. For example, the camera module can take still images or moving images in conjunction with the pressing operation of a switch set in the frame or the touching of the touch screen. The camera module may include a light source for photography. For example, a lamp such as a xenon lamp, a light-emitting element such as an LED or an organic EL, etc. may be used. Alternatively, the touch screen may be used as a light source for photography, in which case various colors of light may be used for photography in addition to white light.

[0251] 〈Vibration Module〉

[0252] The vibration module includes a vibration element that vibrates the electronic device 30 and a vibration controller that controls the vibration element. As the vibration element, an element that can convert an electrical signal or a magnetic signal into vibration, such as a vibration motor (eccentric motor), a resonance actuator, a magnetostrictive element, or a piezoelectric element can be used.

[0253] The vibration module can vibrate the electronic device 30 in various vibration modes by controlling the vibration number, amplitude, vibration period, etc. of the vibration element according to the instruction from the control unit 61. The vibration module can generate vibrations of various vibration modes according to the work performed by various applications. Examples of such vibrations include vibrations linked to the operation of a frame switch, etc., vibrations linked to the start-up of the electronic device 30, vibrations linked to a dynamic image or audio reproduced by a dynamic image reproduction application, vibrations linked to the reception of an e-mail, and vibrations linked to the input work of a touch screen.

[0254] 〈Sensor Module〉

[0255] The sensor module includes a sensor unit and a sensor controller. The sensor controller supplies power from a battery module or the like to the sensor unit. In addition, the sensor controller converts the input from the sensor unit into a control signal through a bus 69 and outputs it to the control unit 61. The sensor controller can manage errors caused by the sensor unit or correct the sensor unit. Note that the sensor controller may also include a plurality of controllers for controlling the sensor unit.

[0256] The sensor module may also include various sensors for measuring force, displacement, position, speed, acceleration, angular velocity, rotation number, distance, light, liquid, magnetism, temperature, chemical substances, sound, time, hardness, electric field, current, voltage, electricity, radiation, flow, humidity, slope, vibration, smell and infrared.

[0257] In addition, as a sensor included in the sensor module, a sensor that acquires biological information can be used. Examples of biological information include body temperature, blood pressure, pulse rate, perspiration, vital capacity, blood sugar level, blood alcohol concentration, SpO2 (blood oxygen saturation), etc. By acquiring such biological information, the electronic device 30 can be used as a health care system.

[0258] In addition, as the sensor included in the sensor module, a sensor that obtains biometric information such as fingerprint, vein, iris, voiceprint, etc. can be used. By using such a sensor, a biometric recognition function can be performed, and the electronic device 30 can be prevented from being illegally used by others, so that security can be improved.

[0259] The above is a description of examples of components that may be used as the functional circuit 63 .

[0260] [Example of how the system works]

[0261] Next, we will explain Fig. 9A The operation of the system 50 is shown.

[0262] (Working method example 1)

[0263] Fig.10 is a flow chart of the operation of system 50. Fig.10 This is an example of operating using the power of one of the battery 22 and the battery 65. The following operations are mainly performed by the control unit 61.

[0264] First, the operation is started in step S00. The operation is started when the electronic device 30 is turned on or the system 50 is set to be effective by the user. Alternatively, the operation can be started when, for example, the connecting component 10 or a component such as a conventional spring bolt is installed or separated from the bearing portion 34.

[0265] Next, in step S01, information on the potential of the pair of bearings 34 (hereinafter also referred to as potential information) is obtained. More specifically, the control unit 61 controls the sensor 64 to obtain information on the potential between the pair of bearings 34. The sensor 64 outputs the obtained potential information to the control unit 61.

[0266] Next, in step S02, it is determined whether the pair of bearing parts 34 are electrically short-circuited or electrically insulated from each other. When it is determined that the pair of bearing parts 34 are electrically short-circuited or electrically insulated from each other, step S02 is transferred to step S05, and when it is determined that the pair of bearing parts 34 are not electrically short-circuited or electrically insulated from each other, step S02 is transferred to step S03.

[0267] Step S02 corresponds to a step of determining whether the power supply device 20 is connected to the electronic device 30 .

[0268] Specifically, when the potential difference between the pair of bearings 34 is 0 V or near 0 V, the pair of bearings 34 is determined to be electrically short-circuited or electrically insulated from each other. At this time, it can be determined that the power supply device 20 provided with the battery 22 is at least not connected to the pair of bearings 34.

[0269] On the other hand, when the potential difference between the pair of bearings 34 is 0.5 V or 1 V or more, the pair of bearings 34 is determined to be not short-circuited and electrically insulated from each other. In this case, the power supply device 20 can be determined to be connected to the pair of bearings 34 .

[0270] Next, in step S03, it is determined whether the potential difference of the pair of bearings 34 is within a predetermined potential difference range. If so, step S03 proceeds to step S04, and if not, step S03 proceeds to step S05.

[0271] Step S03 corresponds to a step of checking the remaining power of the battery 22 in the power supply device 20. Here, the remaining power of the battery 22 can be measured using the value of the output voltage within a range specified by the rated voltage range or the like. For example, within the rated voltage range, it can be assumed that the fully charged voltage is 100% and the discharged voltage is 0%. At this time, in step S03, if the potential difference between the pair of bearing parts 34 is 0% or more and less than 5% or 0% or more and less than 3% within the rated voltage range, it can be determined that the remaining power of the battery 22 is insufficient.

[0272] Step S03 also corresponds to a step of eliminating the voltage when the output voltage of the battery 22 exceeds the expected voltage range. When the output voltage of the battery 22 exceeds the expected voltage, the components in the electronic device 30 may fail. For example, when the potential difference between the pair of bearings 34 exceeds the maximum value of the voltage that can be input to the electronic device 30, it is determined that the potential difference is not within the predetermined potential difference range.

[0273] Note that the remaining capacity of the battery 22 is measured using the potential difference between the pair of bearings 34, but the present invention is not limited to this. Alternatively, the remaining capacity may be measured using the current amount, the electric power amount, or the like.

[0274] Next, in step S04, it is determined whether to use the electric power supplied from the bearing portion 34. When the electric power is used, step S04 proceeds to step S06, and when the electric power is not used, step S04 proceeds to step S05.

[0275] In step S04, the operation of the control unit 61 can be specified according to the preset setting information. In addition, the setting information can be preset before shipment. In addition, the setting information can also be changed by the user. In addition, the setting information can also be added with a condition that the power supplied from the bearing unit 34 is used when the remaining power of the battery 65 becomes less than 10%.

[0276] In step S05, the electronic device 30 is driven using the power of the battery 65 included in the electronic device 30. Specifically, the control unit 61 controls the power control unit 62 so as to output the power supplied from the battery 65 to each component. Thereafter, step S05 shifts to step S07.

[0277] In step S06, the electronic device 30 is driven by using the power supplied from the pair of bearings 34. Specifically, the control unit 61 controls the power control unit 62 so that the power input from the battery 22 included in the power supply device 20 through the connection member 10 and the bearing 34 is output to each component. Thereafter, step S06 is transferred to step S07.

[0278] In step S07, the work ends.

[0279] Above is Fig.10 Description of the process shown.

[0280] By using the method described here, it is easy to determine whether the power supply device 20 and the connecting member 10 including the battery 22 are connected to the pair of bearings 34 or a normal wearing device that does not include them. When a normal wearing device is connected to the pair of bearings 34, the electronic device 30 can be driven by using the battery 65 included in the electronic device 30 itself as a power source.

[0281] (Working method example 2)

[0282] Fig.11 is a flow chart of the operation of system 50. Fig.11 This is a flow chart of the charging operation of the battery 22 and the battery 65. In particular, Fig.11 This is an example of a case where the rechargeable battery 22 is preferably used. The following operations are mainly performed by the control unit 61.

[0283] First, the operation starts in step S10.

[0284] Next, in step S11, it is determined whether power is being received. Specifically, it is determined whether power receiving unit 66 is receiving power. If power is being received, step S11 proceeds to step S12, and if power is not being received, step S11 proceeds to step S18.

[0285] In step S12, location information is obtained.

[0286] In step S13, it is determined whether the pair of bearing parts 34 are electrically short-circuited or electrically insulated from each other. When it is determined that the pair of bearing parts 34 are electrically short-circuited or electrically insulated from each other, step S13 transfers to step S17, and when it is determined that the pair of bearing parts 34 are not electrically short-circuited or electrically insulated from each other, step S13 transfers to step S14.

[0287] In step S14, it is determined whether the potential difference of the pair of bearings 34 is lower than a predetermined potential difference. If it is lower than the predetermined potential difference, step S14 proceeds to step S15, while if it is higher than the predetermined potential difference, step S14 proceeds to step S17.

[0288] Step S14 corresponds to a step of checking whether the battery 22 in the power supply device 20 is fully charged. For example, the predetermined potential difference in step S14 may be set to a potential difference corresponding to the fully charged state of the battery 22 (a state where the output voltage is 100% within the rated voltage range).

[0289] In step S15, power is output to the pair of bearing parts 34 to charge the battery 22. Specifically, the control unit 61 controls the power control unit 62 so that the power supplied from the power receiving unit 66 is output to the pair of bearing parts 34. The power control unit 62 supplies the potential difference of the charging battery 22 to the pair of bearing parts 34. Thus, the battery 22 can be charged through the connecting member 10. Thereafter, step S15 transfers to step S16.

[0290] Step S15 is continued until the battery 22 is fully charged or in a state close to it. Specifically, when the potential difference between the pair of bearings 34 is equal to the potential difference corresponding to the full charge of the battery 22 or 95% or more of the potential difference, the charging is terminated. On the other hand, when the potential difference corresponds to a state of charge of the battery of less than 100% or less than 95%, the charging is continued.

[0291] In step S16, it is determined whether the battery 65 is fully charged. When the battery 65 is fully charged, step S16 proceeds to step S18. On the other hand, when the battery 65 is not fully charged, step S16 proceeds to step S17.

[0292] Specifically, when the state of charge of the battery 65 is fully charged or 95% or more, the battery 65 is determined to be fully charged. On the other hand, when the state of charge of the battery 65 is less than 100% or 95%, the battery 65 is determined to be not fully charged.

[0293] In step S17, electric power is output to the battery 65 to charge the battery 65. Specifically, the control unit 61 controls the power supply control unit 62 to output the electric power supplied from the power receiving unit 66 to the battery 65. Thereafter, step S17 shifts to step S18.

[0294] Similar to step S15, step S17 is continued until the battery 65 is fully charged or nearly fully charged.

[0295] In step S18, the operation is completed. At this time, the battery 22 and the battery 65 are fully charged.

[0296] The above is a description of working method example 2.

[0297] (Working method example 3)

[0298] Fig.12 is a flow chart of the operation of system 50. Fig.12 This is a flow chart of the charging operation of the battery 22 and the battery 65. In particular, Fig.12 This is an example of a case where the rechargeable battery 65 is preferably used. The following operations are mainly performed by the control unit 61.

[0299] First, the operation starts in step S20.

[0300] Next, in step S21, it is determined whether power is being received. If power is being received, step S21 proceeds to step S22, and if power is not being received, step S21 proceeds to step S27.

[0301] In step S22, power is output to battery 65 to charge battery 65. Specifically, control unit 61 controls power supply control unit 62 to output power supplied from power receiving unit 66 to battery 65. After battery 65 is fully charged, step S22 shifts to step S23.

[0302] In step S23, location information is obtained.

[0303] In step S24, it is determined whether the pair of bearing parts 34 are electrically short-circuited or electrically insulated from each other. When it is determined that the pair of bearing parts 34 are electrically short-circuited or electrically insulated from each other, step S24 is transferred to step S27, and when it is determined that the pair of bearing parts 34 are not electrically short-circuited or electrically insulated from each other, step S24 is transferred to step S25.

[0304] In step S25, it is determined whether the potential difference of the pair of bearings 34 is lower than a predetermined potential difference. If it is lower than the predetermined potential difference, step S25 proceeds to step S26, and if it is higher than the predetermined potential, step S25 proceeds to step S27.

[0305] The above description can be applied to the judgment criteria of step S25.

[0306] In step S26, electric power is output to the pair of bearing portions 34 to charge the battery 22. After the battery 22 is fully charged, step S26 shifts to step S27.

[0307] In step S27, the operation is completed. At this time, the battery 22 and the battery 65 are fully charged.

[0308] The above is an explanation of working method example 3.

[0309] Here, two methods for charging the battery 22 and the battery 65 are described. Depending on which battery is preferably charged, either of the two methods can be selected. In addition, which method to use can also be preset as setting information or can be changed by the user.

[0310] Note that one embodiment of the present invention may be realized in a method in which a program included in a storage unit in the electronic device 30 is read out and executed by the control unit 61. That is, another embodiment of the present invention is a program that causes the control unit 61 to perform the operations of the above-described flow.

[0311] The above is an explanation of an example of how the system works.

[0312] [Application Examples]

[0313] As an example of an electronic device that can use a connection component, a power supply device, etc. of an embodiment of the present invention, although a watch-type information terminal is described above, the electronic device is not limited to this. Connection components, power supply devices, etc. can be used in various electronic devices. Examples of electronic devices different from the above will be described below.

[0314] Due to its characteristics such as band shape and flexibility, the power supply device of one embodiment of the present invention can be used for various purposes. For example, the power supply device can be used as a wearable device for wearing the device on the arm, leg, waist, etc. In addition, the power supply device can be used as a handle or a belt part of the device that is hung from the shoulder or neck, or can also be used as an accessory to prevent slipping such as a mobile phone pendant.

[0315] Examples of devices that can use the power supply device of one embodiment of the present invention include wearable devices such as watch-type electronic devices, glasses-type electronic devices, head-mounted displays (HMD: Head Mounted Display), etc. In addition, the power supply device can be appropriately used in bioinformatics equipment such as a blood pressure monitor, an electrocardiogram, and a pedometer. In addition, the following various electronic devices can be cited: portable information terminals such as mobile phones, smart phones, and tablet devices; digital cameras; audio reproduction devices; dynamic image reproduction devices; communication devices such as mobile routers; wireless headphones; wireless headphones; speakers, etc.

[0316] The power supply device can be used not only for electronic devices but also for bags, clothes (including hats), etc. Since it is thin, light and flexible, the power supply device of one embodiment of the present invention can be used for bags or clothes without losing its lightness or wearing feeling.

[0317] For example, a bag whose handle or strap includes a power supply device of one embodiment of the present invention can be used as a charger for charging electronic devices placed in the bag. In addition, for example, various functions using power, such as communication function, audio transmission or vibration function, can also be added to the bag itself.

[0318] The power supply device included in the clothing can be added with a function of obtaining biological information by electrodes or sensors provided in the clothing, can change its designability by emitting light from a part of the clothing or representing an image on a part of the clothing, and can extend the clothing.

[0319] For example, when washing clothes, the power supply device according to one embodiment of the present invention can be easily attached and detached, thereby preventing dangers such as short circuit of the battery.

[0320] Fig.13A and 13B This is an external view of the head mounted display 300 .

[0321] The head mounted display 300 includes a housing 301, a display unit 302, and operation buttons 303. The power supply device 20 attached to the belt is mounted on the housing 301. The power supply device 20 includes a battery 22.

[0322] The head mounted display 300 can use a battery provided in the housing 301 and a battery 22 provided in the power supply device 20 as its power source.

[0323] The head mounted display 300 may also include a power generation device such as a solar cell in the housing 301. As the power generation device, for example, a device that generates power when the head mounted display 300 is shaken or a device that generates power when the power supply device 20 is bent and straightened may be used.

[0324] The housing 301 includes a wireless receiver, a connector, etc., receives image data such as video data, and displays it on the display unit 302. The head mounted display 300 preferably has a function of detecting the movement of the user's head using an acceleration sensor or the like included in the housing 301, so as to move the image displayed on the display unit 302 in synchronization with the movement of the user's head or the like.

[0325] The user's viewpoint is used as an input method by using a camera in the frame 301 to capture the movement of the user's eyeballs and eyelids, and then using the data to calculate the coordinates of the user's viewpoint. In addition, the frame 301 may also include a plurality of electrodes in contact with the user. The frame 301 may also be configured to identify the user's viewpoint by detecting the current flowing through the electrodes according to the movement of the user's eyeballs. The frame 301 may be configured to monitor the user's pulse by detecting the current flowing through the electrodes. The frame 301 may include sensors, such as temperature sensors, pressure sensors, and acceleration sensors, so that the user's biological information can be displayed on the display unit 302.

[0326] The operation button 303 is used as a power button, etc. In addition, buttons other than the operation button 303 may be included.

[0327] like Fig. 13C As shown in FIG. 3 , a lens 305 may be provided between the display unit 302 and the user's eyes. The user can see the image on the display unit 302 in an enlarged manner by using the lens 305, so that the sense of reality is improved. In this case, Fig. 13C As shown, a dial 306 for changing the position of the lens may also be included for focusing the eyepiece.

[0328] The display unit 302 can display the right-eye image and the left-eye image side by side in the right area and the left area, respectively, thereby displaying a stereoscopic image using binocular parallax.

[0329] Alternatively, one binocular image may be displayed on the entire area of ​​the display unit 302. Thus, a panoramic image from end to end of the field of view can be displayed, thereby improving the sense of reality.

[0330] By using the Fig. 13C The lens 305 shown in the figure can display two images side by side on the display unit 302 , or one image can be displayed on the display unit 302 and viewed through the lens 305 by both eyes.

[0331] Fig.13D An example is shown in which a curved display is used as the display portion 302. This structure can provide a more realistic display than when a display having a flat display surface is used.

[0332] Fig.13EIn the example of two displays shown, a display for a right eye and a display for a left eye are provided as the display unit 302 .

[0333] By including two display units 302, the user can see one of the display units 302 with one eye. Thus, even in the case of stereoscopic display using parallax, a high-definition image can be displayed. In addition, the display unit 302 is curved into an arc shape approximately centered on the user's eyes. Thus, the distance from the user's eyes to the display surface of the display unit 302 can be made constant, so the user can see a more natural image. Since the user's eyes are located in the normal direction of the display surface of the display unit 302, even when the directivity of the light emitted from the display unit 302 is high and the brightness or chromaticity of the light changes according to the angle at which the user sees it, its influence can be substantially ignored, so a more realistic image can be displayed.

[0334] Fig.14A An example of a portable information terminal is shown. Fig.14A The portable information terminal 310 shown includes a housing 311 , a display unit 312 , operation buttons 313 , an external connection port 314 , a speaker 315 , a microphone 316 , a camera 317 , etc. The power supply device 20 attached to the belt is mounted on the housing 311 . The power supply device 20 includes a battery 22 .

[0335] The portable information terminal 310 can use a battery provided in the housing 311 and a battery 22 provided in the power supply device 20 as its power source.

[0336] The portable information terminal 310 may also include a power generation device such as a solar cell in the housing 311. As the power generation device, for example, a device that generates power when the portable information terminal 310 is shaken or a device that generates power when the power supply device 20 is bent and straightened can be used.

[0337] The portable information terminal 310 includes a touch sensor in the display portion 312. By touching the display portion 312 with a finger, a stylus pen, or the like, operations such as making a call and inputting text can be performed.

[0338] The power supply can be switched on and off by using the operation button 313. In addition, the type of image displayed on the display unit 312 can be switched. For example, by operating the operation button 313, the e-mail composition screen can be switched to the main menu screen.

[0339] When a detection device such as a gyro sensor or an acceleration sensor is provided inside the portable information terminal 310, the screen display of the display unit 312 is automatically switched by determining the direction of the portable information terminal 310 (whether the portable information terminal is in a horizontal state or a vertical state). In addition, the direction of the screen display can also be switched by touching the display unit 312, operating the operation button 313, inputting sound using the microphone 316, etc.

[0340] The portable information terminal 310 has, for example, one or more functions of a telephone, an electronic notebook, and an information reading device. Specifically, the portable information terminal 310 can be used as a smart phone. For example, the portable information terminal 310 can execute various applications such as mobile phone, e-mail, article reading and editing, music playing, network communication, computer games, etc.

[0341] Fig. 14B An example of a camera is shown. The camera 320 includes a housing 321, a display unit 322, operation buttons 323, a shutter button 324, and the like. In addition, the camera 320 is equipped with a detachable lens 326. The housing 321 is equipped with a power supply device 20 mounted on a belt. The power supply device 20 includes a battery 22.

[0342] The camera 320 can use a battery provided in the housing 321 and a battery 22 provided in the power supply device 20 as its power source.

[0343] The camera 320 may also include a power generation device such as a solar cell in the housing 321. As the power generation device, for example, a device that generates power when the camera 320 is shaken, a device that generates power when the power supply device 20 is bent and straightened can be used.

[0344] Although the lens 326 of the camera 320 can be removed from the frame 321 and replaced, the lens 326 may be included in the frame.

[0345] When the shutter button 324 is pressed, the camera 320 can capture a still image or a moving image. In addition, the display unit 322 is used as a touch screen, and imaging can also be performed when the display unit 322 is touched.

[0346] Note that the camera 320 may be further provided with a flash device or a viewfinder, etc. In addition, these may also be assembled in the frame 321 .

[0347] The above is a description of the application example.

[0348] This embodiment mode can be implemented in combination with other embodiment modes described in this specification as appropriate.

[0349] (Implementation Method 2)

[0350] Hereinafter, examples of the structure and the manufacturing method of a secondary battery that can be used for the battery 22 or the like according to one embodiment of the present invention will be described with reference to the drawings. In particular, an example of a bendable secondary battery will be described below.

[0351] [Structure example]

[0352] Fig.15 is a perspective view showing the appearance of the secondary battery 102 . Fig.16A is along Fig.15 A cross-sectional view along the dot-dash line A1-A2 in FIG. Fig. 16B is along Fig.15 Cross-sectional view along the dot-dashed line B1-B2 in FIG.

[0353] The secondary battery 102 according to one embodiment of the present invention includes a positive electrode 511 covered by a separator 503, a negative electrode 515, and an electrolyte 504 in an outer package 507. Fig.15 as well as Fig.16A and Fig. 16B In the example of, the secondary battery includes: a positive electrode having a positive electrode active material layer 502 on one surface of a positive electrode collector 501; a positive electrode having a positive electrode active material layer 502 on both surfaces of the positive electrode collector 501; a negative electrode having a negative electrode active material layer 506 on one surface of a negative electrode collector 505; and a negative electrode having a negative electrode active material layer 506 on both surfaces of the negative electrode collector 505. The positive electrode 511 is electrically connected to the positive electrode lead 521. The negative electrode 515 is electrically connected to the negative electrode lead 525. The positive electrode lead 521 and the negative electrode lead 525 are also referred to as lead electrodes or lead terminals. A portion of the positive electrode lead 521 and the negative electrode lead 525 are arranged on the outside of the outer packaging body. Charging and discharging of the secondary battery 102 are performed through the positive electrode lead 521 and the negative electrode lead 525.

[0354] Note that although Fig.16A and Fig. 16B Although the positive electrode 511 is covered by the separator 503, one embodiment of the present invention is not limited thereto. For example, the positive electrode 511 may not be covered by the separator 503. For example, the negative electrode 515 may be covered by the separator 503 instead of the positive electrode 511.

[0355] (positive electrode)

[0356] The positive electrode 511 includes, for example, a positive electrode current collector 501 and a positive electrode active material layer 502 formed on the positive electrode current collector 501. Fig.16A and Fig. 16BAn example is shown in which a positive electrode 511 having a positive electrode active material layer 502 on only one surface of a sheet-shaped (or strip-shaped) positive electrode collector 501 and a positive electrode 511 having a positive electrode active material layer 502 on both surfaces of the positive electrode collector 501 are included, but an embodiment of the present invention is not limited thereto. Only a positive electrode 511 having a positive electrode active material layer 502 on only one surface of the positive electrode collector 501 may be used. Only a positive electrode 511 having a positive electrode active material layer 502 on both surfaces of the positive electrode collector 501 may be used. By using a positive electrode 511 having a positive electrode active material layer 502 on both surfaces of the positive electrode collector 501, the secondary battery 102 can have a high capacity. In addition, the secondary battery 102 may also include more than three positive electrodes 511. By increasing the number of positive electrodes 511 in the secondary battery 102, the capacity of the secondary battery 102 can be increased.

[0357] The positive electrode current collector 501 can be formed of materials with high conductivity and not dissolved due to the potential of the positive electrode, such as stainless steel, gold, platinum, aluminum, titanium and their alloys. In addition, aluminum alloys with elements such as silicon, titanium, neodymium, scandium, molybdenum and the like that improve heat resistance can also be used. In addition, metal elements that react with silicon to form silicides can also be used. Examples of metal elements that react with silicon to form silicides are zirconium, titanium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, cobalt, nickel and the like. The positive electrode current collector 501 can appropriately have a foil shape, a plate shape (sheet shape), a mesh shape, a punched metal mesh shape, a drawn metal mesh shape, and the like. The thickness of the positive electrode current collector 501 is preferably 5 μm or more and 30 μm or less. In addition, a substrate layer can also be provided on the surface of the positive electrode current collector 501 using graphite or the like.

[0358] In addition to the positive electrode active material, the positive electrode active material layer 502 may further include a binder for improving the adhesion of the positive electrode active material and a conductive additive for improving the conductivity of the positive electrode active material layer 502 .

[0359] Examples of the positive electrode active material used for the positive electrode active material layer 502 include composite oxides having an olivine structure, a layered rock salt structure, and a spinel structure. As the positive electrode active material, for example, compounds such as LiFeO2, LiCoO2, LiNiO2, LiMn2O4, V2O5, Cr2O5, and MnO2 are used.

[0360] In particular, LiCoO 2 is preferred because of its high capacity, high stability in the atmosphere compared to LiNiO 2 , and high thermal stability compared to LiNiO 2 .

[0361] When a small amount of lithium nickelate (LiNiO2 or LiNi 1-x M x O2 (0 < x < 1) (M = Co, Al, etc.)) is mixed in a lithium-containing material having a spinel structure such as LiMn2O4, the characteristics of a secondary battery using the above material can be improved, so it is preferred.

[0362] Alternatively, a composite material (LiMPO4 (general formula) (M is one or more of Fe(II), Mn(II), Co(II), Ni(II))) can be used. Typical examples of the general formula LiMPO4 that can be used as a material are LiFePO4, LiNiPO4, LiCoPO4, LiMnPO4, LiFe a Ni b PO4, LiFe a Co b PO4, LiFe a Mn b PO4, LiNi a Co b PO4, LiNi a Mn b PO4 (a + b ≤ 1, 0 < a < 1, 0 < b < 1), LiFe c Ni d Co e PO4, LiFe c Ni d Mn e PO4, LiNi c Co d Mn e PO4 (c + d + e ≤ 1, 0 < c < 1, 0 < d < 1, 0 < e < 1), LiFe f Ni g Co h Mn i PO4 (f + g + h + i ≤ 1, 0 < f < 1, 0 < g < 1, 0 < h < 1, 0 < i < 1), etc. lithium compounds.

[0363] In particular, LiFePO4 uniformly satisfies the conditions required for a positive electrode active material such as safety, stability, high capacity density, and the presence of lithium ions that can be extracted during initial oxidation (charging), so it is preferred.

[0364] Alternatively, a composite material such as Li (2－j) MSiO4 (general formula) (M is one or more of Fe(II), Mn(II), Co(II), Ni(II), 0 ≤ j ≤ 2)) can be used. Typical examples of the general formula Li (2－j) MSiO4 are Li(2－j) FeSiO4, Li (2－j) NiSiO4, Li (2－j) CoSiO4, Li (2－j) MnSiO4, Li (2－j) Fe k Ni l SiO4, Li (2－j) Fe k Co l SiO4, Li (2－j) Fe k Mn l SiO4, Li (2－j) Ni k Co l SiO4, Li (2－j) Ni k Mn l SiO4 (k + l ≤ 1, 0 < k < 1, 0 < l < 1), Li (2－j) Fe m Ni n Co q SiO4, Li (2－j) Fe m Ni n Mn q SiO4, Li (2－j) Ni m Co n Mn q SiO4 (m + n + q ≤ 1, 0 < m < 1, 0 < n < 1, 0 < q < 1), Li (2－j) Fe r Ni s Co t Mn u Lithium compounds such as SiO4 (r + s + t + u ≤ 1, 0 < r < 1, 0 < s < 1, 0 < t < 1, 0 < u < 1).

[0365] As the positive electrode active material, A can be used xSodium superion conductor (nasicon) type compounds represented by M2(XO4)3 (general formula) (A = Li, Na, Mg, M = Fe, Mn, Ti, V, Nb, X = S, P, Mo, W, As, Si). Examples of sodium superion conductor type compounds are Fe2(MnO4)3, Fe2(SO4)3, Li3Fe2(PO4)3. In addition, as positive electrode active materials, the following can be used: compounds represented by Li2MPO4F, Li2MP2O7, Li5MO4 (general formula) (M = Fe, Mn); perovskite fluorides such as NaFeF3 and FeF3; metal chalcogenides (sulfides, selenides or tellurides) such as TiS2 and MoS2; oxides with an inverse spinel structure such as LiMVO4; vanadium oxides (V2O5, V6O 13 , LiV3O8, etc.); manganese oxides; and organic sulfur compounds and other materials.

[0366] When the carrier ions are alkali metal ions or alkaline earth metal ions other than lithium ions, alkali metals (e.g., sodium or potassium) or alkaline earth metals (e.g., calcium, strontium, barium, beryllium or magnesium) may be used as the positive electrode active material instead of lithium. 2 / 3 [Fe 1 / 2 Mn 1 / 2 ]O2 and other sodium-containing layered oxides.

[0367] In addition, as the positive electrode active material, a combination of multiple materials among the above materials may be used. For example, a solid solution of a combination of multiple materials among the above materials may be used as the positive electrode active material. For example, LiCO 1 / 3 Mn 1 / 3Ni 1 / 3 The solid solution of O2 and Li2MnO3 is used as the positive electrode active material.

[0368] Note that, although not shown, a conductive material such as a carbon layer may be provided on the surface of the positive electrode active material layer 502. The conductive material such as a carbon layer may be provided to improve the conductivity of the electrode. For example, by mixing carbohydrates such as glucose when calcining the positive electrode active material, the positive electrode active material layer 502 may be covered with a carbon layer.

[0369] The average particle diameter of the primary particles of the positive electrode active material layer 502 is preferably 50 nm or more and 100 μm or less.

[0370] Examples of the conductive additive include acetylene black (AB), graphite (graphite) particles, carbon nanotubes, graphene, and fullerene.

[0371] By using the conductive additive, an electron-conductive network can be formed in the positive electrode 511. By using the conductive additive, the conductive path between the particles of the positive electrode active material layer 502 can be maintained. By adding the conductive additive to the positive electrode active material layer 502, the electron conductivity of the positive electrode active material layer 502 can be improved.

[0372] As the binder, in addition to typical polyvinylidene fluoride (PVDF), polyimide, polytetrafluoroethylene, polyvinyl chloride, EPDM polymer, styrene-butadiene rubber, acrylonitrile-butadiene rubber, fluororubber, polyvinyl acetate, polymethyl methacrylate, polyethylene, nitrocellulose, etc. can be used.

[0373] The content of the binder in the positive electrode active material layer 502 is preferably 1 wt% to 10 wt%, more preferably 2 wt% to 8 wt%, and further preferably 3 wt% to 5 wt%. The content of the conductive aid in the positive electrode active material layer 502 is preferably 1 wt% to 10 wt%, and more preferably 1 wt% to 5 wt%.

[0374] When the positive electrode active material layer 502 is formed by a coating method, the positive electrode active material, the binder, and the conductive additive are mixed to form a positive electrode slurry, which is then coated on the positive electrode current collector 501 and dried.

[0375] (negative electrode)

[0376] The negative electrode 515 includes, for example, a negative electrode current collector 505 and a negative electrode active material layer 506 formed on the negative electrode current collector 505. Fig.16A and Fig. 16BAn example is shown in which a negative electrode 515 having a negative electrode active material layer 506 on only one surface of a sheet-shaped (or strip-shaped) negative electrode collector 505 and a negative electrode 515 having a negative electrode active material layer 506 on both surfaces of the negative electrode collector 505 are included, but one embodiment of the present invention is not limited thereto. It is also possible to use only a negative electrode 515 having a negative electrode active material layer 506 on only one surface of the negative electrode collector 505. In this case, when the surfaces of the negative electrode collector 505 not provided with the negative electrode active material layer 506 are arranged in contact with each other, a contact surface with low friction can be formed, thereby making it easy to release the stress generated when the secondary battery 102 is bent, so it is preferred. In addition, it is also possible to use only a negative electrode 515 having a negative electrode active material layer 506 on both surfaces of the negative electrode collector 505. By using a negative electrode 515 having a negative electrode active material layer 506 on both surfaces of the negative electrode collector 505, the secondary battery 102 can have a high capacity. Furthermore, the secondary battery 102 may include three or more negative electrodes 515. By increasing the number of negative electrodes 515 in the secondary battery 102, the capacity of the secondary battery 102 can be increased.

[0377] The negative electrode current collector 505 can be formed using materials with high conductivity such as stainless steel, gold, platinum, iron, copper, titanium, and their alloys, and which do not alloy with carrier ions such as lithium ions. In addition, aluminum alloys to which elements such as silicon, titanium, neodymium, scandium, and molybdenum are added to improve heat resistance can also be used. The negative electrode current collector 505 can appropriately have a foil shape, a plate shape (sheet shape), a mesh shape, a punched metal mesh shape, a drawn metal mesh shape, etc. The thickness of the negative electrode current collector 505 is preferably 5 μm or more and 30 μm or less. In addition, a substrate layer can also be provided on the surface of the negative electrode current collector 505 using graphite or the like.

[0378] The negative electrode active material layer 506 may further contain, in addition to the negative electrode active material, a binder for improving the adhesion of the negative electrode active material, a conductive aid for improving the conductivity of the negative electrode active material layer 506 , and the like.

[0379] The negative electrode active material is not particularly limited as long as it can dissolve and precipitate lithium or allow lithium ions to be embedded and released. As the material of the negative electrode active material layer 506, in addition to lithium metal or lithium titanate, carbon materials and alloy materials generally used in the field of power storage can be used.

[0380] Lithium metal has a low redox potential (3.045 V lower than the standard hydrogen electrode) and a large specific capacity per weight and volume (3860 mAh / g and 2062 mAh / cm 3 ), so it is preferred.

[0381] Examples of carbon-based materials include graphite, graphitizing carbon (soft carbon), non-graphitizing carbon (hard carbon), carbon nanotubes, graphene, carbon black, and the like.

[0382] Examples of graphite include artificial graphites such as mesocarbon microbeads (MCMB), coke-based artificial graphite, and pitch-based artificial graphite, and natural graphites such as spheroidized natural graphite.

[0383] When lithium ions are intercalated into graphite (when lithium-graphite intercalation compounds are formed), graphite has a potential as low as that of lithium metal (0.1 V to 0.3 V vs. Li / Li). + ). As a result, lithium-ion batteries can have a high operating voltage. In addition, graphite has the following advantages: high capacitance per unit volume; small volume expansion; low cost; higher safety than lithium metal, etc., so it is preferred.

[0384] As the negative electrode active material, alloy materials or oxides that can perform charge and discharge reactions by alloying and dealloying reactions with lithium can also be used. In the case where lithium ions are carrier ions, the alloy material is, for example, a material containing at least one of Mg, Ca, Al, Si, Ge, Sn, Pb, Sb, Bi, Ag, Au, Zn, Cd, Hg and In. The capacitance of this element is higher than that of carbon. In particular, the theoretical capacity of silicon is significantly high, at 4200 mAh / g. Therefore, silicon is preferably used for the negative electrode active material. Examples of alloy materials using this element include Mg2Si, Mg2Ge, Mg2Sn, SnS2, V2Sn3, FeSn2, CoSn2, Ni3Sn2, Cu6Sn5, Ag3Sn, Ag3Sb, Ni2MnSb, CeSb3, LaSn3, La3Co2Sn7, CoSb3, InSb, SbSn, etc.

[0385] In addition, as the negative electrode active material, oxides such as SiO, SnO, SnO2, titanium oxide (TiO2), lithium titanium oxide (Li4Ti5O 12 ), lithium-graphite intercalation compound (Li x C6), niobium oxide (Nb2O5), tungsten oxide (WO2), molybdenum oxide (MoO2), etc.

[0386] In addition, as the negative electrode active material, Li 3 N type structure of lithium and transition metal nitride can be used. 3-x M xN (M is Co, Ni or Cu). For example, Li 2.6 Co 0.4 N shows large charge and discharge capacity (900mAh / g and 1890mAh / cm 3 ), so it is preferred.

[0387] When a nitride containing lithium and a transition metal is used, lithium ions are contained in the negative electrode active material, so it can be combined with a material such as V2O5 or Cr3O8 that does not contain lithium ions as a positive electrode active material, which is preferred. Note that when a material containing lithium ions is used as a positive electrode active material, a nitride containing lithium and a transition metal can also be used as a negative electrode active material by previously deintercalating the lithium ions contained in the positive electrode active material.

[0388] In addition, materials that cause conversion reactions can also be used as negative electrode active materials. For example, transition metal oxides that do not react with lithium to form alloys, such as cobalt oxide (CoO), nickel oxide (NiO), and iron oxide (FeO), can be used as negative electrode active materials. Other examples of materials that cause conversion reactions include oxides such as Fe2O3, CuO, Cu2O, RuO2, and Cr2O3, CoS 0.89 , sulfides such as NiS and CuS, nitrides such as Zn3N2, Cu3N, and Ge3N4, phosphides such as NiP2, FeP2, and CoP3, and fluorides such as FeF3 and BiF3. Note that the above fluorides can also be used as the positive electrode active material layer because of their high potential.

[0389] When the negative electrode active material layer 506 is formed by a coating method, the negative electrode active material and the binder may be mixed to form a negative electrode slurry, and the negative electrode slurry may be coated on the negative electrode collector 505 and then dried. Note that a conductive additive may be added to the negative electrode slurry.

[0390] In addition, graphene can also be formed on the surface of the negative electrode active material layer 506. When silicon is used as the negative electrode active material, the volume of silicon changes greatly during the charge and discharge cycle with the absorption and release of carrier ions. As a result, the close contact between the negative electrode collector 505 and the negative electrode active material layer 506 is reduced, and charging and discharging leads to deterioration of battery characteristics. Therefore, by forming graphene on the surface of the negative electrode active material layer 506 containing silicon, even if the volume of silicon changes during the charge and discharge cycle, the reduction in the close contact between the negative electrode collector 505 and the negative electrode active material layer 506 can be suppressed, thereby reducing the degradation of battery characteristics, so it is preferred.

[0391] In addition, a film of oxide or the like may be formed on the surface of the negative electrode active material layer 506. The film formed by decomposition of the electrolyte during charging cannot release the charge consumed during its formation, thereby forming irreversible capacity. In view of this, by pre-arranging a film of oxide or the like on the surface of the negative electrode active material layer 506, the generation of irreversible capacity can be suppressed or prevented.

[0392] As the coating covering the negative electrode active material layer 506, an oxide film of any one of niobium, titanium, vanadium, tantalum, tungsten, zirconium, molybdenum, hafnium, chromium, aluminum and silicon or an oxide film containing one of these elements and lithium can be used. Compared with the conventional coating formed on the negative electrode surface by the decomposition product of the electrolyte, this coating is a sufficiently dense film.

[0393] For example, niobium oxide (Nb2O5) has a relatively low conductivity, i.e., 10 -9 S / cm and has high insulation. Therefore, the niobium oxide film hinders the electrochemical decomposition reaction between the negative electrode active material and the electrolyte. On the other hand, the lithium diffusion coefficient of niobium oxide is 10 -9 cm 2 / sec, and has high lithium ion conductivity. Therefore, niobium oxide can allow lithium ions to pass through. In addition, silicon oxide or aluminum oxide can also be used.

[0394] As a method for forming the negative electrode active material layer 506 by using a coating, for example, a sol-gel method can be used. The sol-gel method is a method for forming a thin film, in which a solution containing a metal alkoxide or a metal salt is converted into a gel that loses fluidity through a hydrolysis reaction and a polycondensation reaction, and the gel is then baked to form a thin film. Since the sol-gel method is a method for forming a thin film from a liquid phase, the raw materials can be uniformly mixed at the molecular level. Thus, by adding a negative electrode active material such as graphite to the raw material of the metal oxide film as a solvent, the active material can be easily dispersed in the gel. In this way, a coating can be formed on the surface of the negative electrode active material layer 506. By using this coating, the reduction of the capacity of the storage body can be prevented.

[0395] (Isolated Body)

[0396] As the material of the separator 503, porous insulators such as cellulose, polypropylene (PP), polyethylene (PE), polybutene, nylon, polyester, polysulfone, polyacrylonitrile, polyvinylidene fluoride, tetrafluoroethylene, polyphenylene sulfide, etc. can be used. In addition, non-woven fabrics such as glass fibers or a composite separator of glass fibers and polymer fibers can also be used.

[0397] (Electrolyte)

[0398] As the electrolyte in the electrolytic solution 504, a material containing lithium ions that can be used as carrier ions and to which carrier ions can move is used. Typical examples of the electrolyte are lithium salts such as LiPF6, LiClO4, LiAsF6, LiBF4, LiCF3SO3, Li(CF3SO2)2N, Li(C2F5SO2)2N, and Li(SO2F)2N. These electrolytes can be used alone or in any combination and ratio of two or more.

[0399] As the solvent of the electrolyte 504, a material in which carrier ions can move is used. As the solvent of the electrolyte, an aprotic organic solvent is preferably used. Typical examples of aprotic organic solvents include one or more of ethylene carbonate (EC), propylene carbonate, dimethyl carbonate, diethyl carbonate (DEC), ethyl methyl carbonate (EMC), γ-butyrolactone, acetonitrile, ethylene glycol dimethyl ether, tetrahydrofuran, etc. When a gelled polymer material is used as the solvent of the electrolyte or a polymer material for gelling is added to the electrolyte, the safety of anti-leakage properties, etc. is improved. In addition, the thinning and lightweight of the storage battery can be achieved. Typical examples of gelled polymer materials include silicone gel, acrylic glue, acrylonitrile glue, polyethylene oxide gel, polypropylene oxide gel, fluorine polymer gel, etc. In addition, by using one or more ionic liquids (room temperature molten salts) with flame retardancy and low volatility as the solvent of the electrolyte, even if the internal temperature rises due to internal short circuit, overcharge, etc. of the storage battery, the rupture or fire of the storage battery can be prevented. Ionic liquids are salts in a fluidized state with high ion mobility (conductivity). Ionic liquids contain cations and anions. Examples of ionic liquids include ionic liquids containing ethylmethylimidazole (EMI) cations or ionic liquids containing N-methyl-N-propylpiperidinium (PPPI) cations. 13 ) cation-containing ionic liquids, etc.

[0400] (Outer packaging)

[0401] There are various types of secondary battery structures. In this embodiment, a film is used to form the outer package 507. Note that the film used for the outer package 507 is selected from a metal film (aluminum, stainless steel, nickel steel, etc.), a plastic film formed of an organic material, a mixed material film containing an organic material (organic resin or fiber, etc.) and an inorganic material (ceramic, etc.), a single-layer film containing a carbon-containing inorganic film (carbon film, graphite film, etc.), or a laminated film containing two or more of the above films. In the case where a concave portion or a convex portion is formed on the surface of the metal film by embossing, the surface area of ​​the outer package 507 exposed to the outside air increases, so the heat dissipation effect is improved.

[0402] When the shape of the secondary battery 102 is changed due to externally applied stress, bending stress is applied to the outer packaging body 507 of the secondary battery 102 from the outside. This may cause a portion of the outer packaging body 507 to be deformed or damaged. By forming a recess or a protrusion in the outer packaging body 507, the strain caused by the stress applied to the outer packaging body 507 can be alleviated. Therefore, the reliability of the secondary battery 102 can be improved. Note that "strain" is a measure of deformation, which represents the displacement of a material point within an object relative to the reference (initial state) length of the object. By forming a recess or a protrusion in the outer packaging body 507, the influence of the strain caused by stress applied to the battery from the outside can be suppressed within an allowable range. Therefore, a battery with good reliability can be provided.

[0403] The above is the description of the structural example.

[0404] [Example of manufacturing method]

[0405] Hereinafter, an example of a method for manufacturing the secondary battery 102 will be described.

[0406] (Prepare the positive electrode and cover the positive electrode with the separator)

[0407] First, a positive electrode 511 including a positive electrode active material layer 502 is disposed on a separator 503 (see Fig.17A ). Fig.17A An example is shown in which the positive electrode active material layer 502 is provided on both surfaces of a positive electrode current collector 501 having a zigzag shape due to slits formed therein.

[0408] By forming the slits in the positive electrode current collector 501, it is possible to prevent the ends of the plurality of current collectors from being misaligned when the secondary battery 102 is bent. In addition, the slits can also alleviate the tension on the current collectors that are far from the center of curvature.

[0409] In addition, when the positive electrode 511 and the negative electrode 515 overlap in the subsequent process, the positive electrode active material layer 502 is not provided in the region 511a overlapping with the slit described later of the negative electrode 515. If the positive electrode active material layer 502 is provided in the region 511a overlapping with the slit of the negative electrode 515, there will be no negative electrode active material layer 506 above and below the positive electrode active material layer 502 in the region 511a, and there is a possibility that a malfunction will occur during the battery reaction. Specifically, the carrier ions released from the positive electrode active material layer 502 are concentrated in the negative electrode active material layer 506 closest to the slit, and the carrier ions may be precipitated into the negative electrode active material layer 506. Therefore, when the positive electrode active material layer 502 is not provided in the region 511a overlapping with the slit of the negative electrode 515, the carrier ions can be suppressed from precipitating into the negative electrode active material layer 506.

[0410] Next, place the separator 503 along Fig.17A The portion indicated by the dotted line is folded, and the positive electrode 511 is inserted between the opposing portions of the separator 503. Next, the outer peripheral portion of the separator 503 on the outside of the positive electrode 511 is joined to form a bag-shaped separator 503 (see Fig. 17B The outer peripheral portion of the separator 503 may be joined using an adhesive or the like, or may be joined using ultrasonic welding or heating welding.

[0411] In this embodiment, polypropylene is used as the separator 503, and the outer periphery of the separator 503 is bonded by heating. Fig. 17B The junction portion 503a is shown. Thus, the positive electrode 511 can be covered by the separator 503. The separator 503 only needs to be formed to cover the positive electrode active material layer 502, and does not need to cover the entire positive electrode 511.

[0412] Note that although Fig.17A and Fig. 17B Although the separator 503 is folded as shown, one embodiment of the present invention is not limited to this. For example, the positive electrode 511 may be sandwiched between two separators. In this case, the joint 503a may be shaped to substantially surround the four sides of the separator.

[0413] The peripheral portions of the separator 503 may be joined in a discontinuous manner or at point-like joining portions provided at regular intervals.

[0414] In addition, only one side of the peripheral part may be joined. Alternatively, only two sides of the peripheral part may be joined. Alternatively, four sides of the peripheral part may be joined. Thus, an equal state of the four sides can be achieved.

[0415] Note that although Fig.17A and Fig. 17B , etc., the positive electrode 511 is covered by the separator 503, but one embodiment of the present invention is not limited to this. For example, the positive electrode 511 does not have to be covered by the separator 503. For example, the negative electrode 515 can also be covered by the separator 503 instead of the positive electrode 511.

[0416] (Prepare the negative electrode)

[0417] Next, prepare the negative electrode 515 (see Fig. 17C ). Fig. 17C An example is shown in which the negative electrode active material layer 506 is provided on both surfaces of the negative electrode current collector 505 having a zigzag shape due to the formation of slits.

[0418] By forming the slits in the negative electrode current collector 505, when the secondary battery 102 is bent, the ends of the plurality of current collectors can be prevented from being misaligned. In addition, the tension on the current collectors far from the center of curvature can be alleviated.

[0419] (Stack the positive and negative electrodes and connect the leads)

[0420] Next, the positive electrode 511 and the negative electrode 515 are stacked (see Fig.18A ) This embodiment shows an example in which two positive electrodes 511 and two negative electrodes 515 are used.

[0421] Next, ultrasonic waves are irradiated while applying pressure to the positive electrode tabs of the plurality of positive electrode current collectors 501 and the positive electrode lead 521 including the sealing layer 520 , so as to be electrically connected (ultrasonic welding).

[0422] The wires are easily cracked or disconnected due to stress caused by a force applied from the outside after the battery is manufactured.

[0423] When ultrasonic welding is performed, the positive electrode lead 521 is arranged between the welding dies having protrusions, thereby forming a connection area and a bend portion ( Fig.18B ).

[0424] By providing the bent portion, stress generated by a force applied after manufacturing the secondary battery 102 can be alleviated. Therefore, the reliability of the secondary battery 102 can be improved.

[0425] The bent portion does not need to be formed in the positive electrode tab. The positive electrode current collector may be formed of a strong material such as stainless steel and its thickness may be set to 10 μm or less to easily alleviate stress caused by external force applied after manufacturing the secondary battery.

[0426] Of course, a plurality of the above-mentioned methods may be combined to alleviate stress concentration on the positive electrode tab.

[0427] Next, similarly to the positive electrode current collector 501 , the negative electrode lead 525 including the sealing layer 520 is electrically connected to the negative electrode tab of the negative electrode current collector 505 by ultrasonic welding.

[0428] (Prepare the outer packaging and cover the positive and negative electrodes)

[0429] The film used as the outer packaging body is folded and heat-pressed along one side of the folded outer packaging body. Fig.18B In FIG. 5 , the bonding portion 507a represents a portion that is heat-pressed along one side of the outer package 507. The outer package 507 obtained in this way covers the positive electrode 511 and the negative electrode 515.

[0430] (Inject electrolyte)

[0431] Next, in the same manner as described above, heat-compression bonding is performed along one side of the outer packaging body 507 overlapping the sealing layer 520 disposed on the positive electrode lead 521 and the sealing layer 520 disposed on the negative electrode lead 525. Fig.19A ). Then, from Fig.19A The unsealed edge 507 b of the outer packaging body 507 shown is filled with electrolyte 504 in the area surrounded by the outer packaging body 507 .

[0432] Then, while evacuating, heating and pressurizing, the remaining opening edge of the outer package 507 is sealed, thereby manufacturing the secondary battery 102 ( Fig.19B ). The injection and sealing operations of the electrolyte are performed in an environment where oxygen is eliminated, such as a glove box. Preferably, evacuation is performed by using a vacuum sealer, a liquid injection sealer, or the like. The unsealed edge 507b between the two heatable rods provided in the sealer can be heated and pressurized. Examples of each condition may be as follows: the degree of vacuum is 60 kPa, the heating temperature is 190°C, the pressurization is 0.1 MPa, and the pressurization time is 3 seconds. At this time, sealing may also be performed while the outer packaging body 507 is pressed from the top surface. In this way, bubbles mixed in between the positive electrode and the negative electrode when the electrolyte is injected can be excluded.

[0433] (Deformation example)

[0434] Fig. 20A Modification examples of the secondary battery 102 are shown. Fig. 20A The secondary battery 102 is shown with Fig.15 The secondary battery 102 shown is different in the configuration of the positive electrode lead 521 and the negative electrode lead 525. Specifically, Fig.15 In the secondary battery 102 shown in FIG. 1 , the positive electrode lead 521 and the negative electrode lead 525 are both arranged on the same side of the outer package 507. Fig. 20A and Fig. 20B In the secondary battery 102 shown, the positive lead 521 and the negative lead 525 are arranged on different sides of the outer packaging body 507. In this way, the lead of the secondary battery of one embodiment of the present invention can be freely arranged, thereby having a high degree of freedom in design. Therefore, the degree of freedom in design of a product using the secondary battery of one embodiment of the present invention can be increased. In addition, the productivity of the product using the secondary battery of one embodiment of the present invention can be increased.

[0435] Fig. 20B Yes Description Fig. 20A The manufacturing process of the secondary battery 102 in FIG. For details, please refer to Fig.15 The method for manufacturing the secondary battery 102 is described in detail. Fig. 20B The description of the electrolyte 504 is omitted.

[0436] In order to make the surface of the film used as the outer packaging body 507 have concavoconvexity in advance, pressing processing (such as embossing processing) can be performed. By making the surface of the film have concavoconvexity, the flexibility of the secondary battery is improved and the stress is relieved. The concave or convex portion of the surface of the film (or the back of the film) formed by embossing forms a confined space, which is sealed by a part of the wall used as a sealing structure and the volume inside it can be changed. In other words, the concave or convex portion of the film in the confined space forms a bellows-like structure (corrugated tube-like structure). Note that it is not necessary to use embossing processing, which is one of the pressing processes, as long as a method that can form a relief on a part of the film is used.

[0437] Note that one embodiment of the present invention is not limited to this. Various modes of the invention are described in this embodiment and other embodiments, so one embodiment of the present invention is not limited to a specific mode. For example, although an example in which one embodiment of the present invention is used for a lithium-ion secondary battery is shown, one embodiment of the present invention is not limited to this. One embodiment of the present invention can be used for various secondary batteries, lead storage batteries, lithium-ion polymer secondary batteries, nickel-metal hydride storage batteries, nickel-cadmium storage batteries, nickel-iron storage batteries, nickel-zinc storage batteries, silver-zinc oxide storage batteries, solid batteries, air batteries, primary batteries, capacitors, lithium-ion capacitors, etc. One embodiment of the present invention may not necessarily be used for lithium-ion secondary batteries.

[0438] The above is the description of an example of the production method.

[0439] At least a part of this embodiment mode can be implemented in combination with other embodiment modes described in this specification as appropriate.

[0440] Explanation of symbols

[0441] 10: connecting member; 11: pipe; 11a: partition wall; 11b: part; 11c: part; 12: hinge; 12a: tip end; 12b: ring; 12c: shaft; 12d: end; 13: spring; 13a: spring; 13b: spring; 14: cushioning material; 15: cushioning material; 20: power supply device; 20a: power supply device; 20b: power supply device; 21: outer package; 21a: outer package; 21b: outer package; 21c: outer package; 21d: outer package; 22: battery; 23 : Tab; 24: Wiring; 25: Conductive component; 26: Outer package; 27: Contents; 28: Protection circuit; 29: Substrate; 30: Electronic device; 31: Frame; 32: Display; 33: Shell corner; 34: Bearing; 35: Switch; 41: Battery; 42: Tab; 42a: Electrode; 42b: Electrode; 50: System; 51: Clasp; 52: Hole; 61: Control unit; 62: Power control unit; 63: Functional circuit; 64: Sensor; 65: Battery; 66: Power receiving unit; 68: Power supply line; 69 : bus; 71: terminal; 72: wiring; 73a: buffer; 73b: buffer material; 75: substrate; 76a: FPC; 76b: FPC; 102: secondary battery; 300: head mounted display; 301: housing; 302: display; 303: operation button; 305: lens; 306: dial; 310: portable information terminal; 311: housing; 312: display; 313: operation button; 314: external connection port; 315: speaker; 316: microphone; 317: camera; 320 : Camera; 321: Housing; 322: Display unit; 323: Operation button; 324: Shutter button; 326: Lens; 501: Positive electrode current collector; 502: Positive electrode active material layer; 503: Insulator; 503a: Joint; 504: Electrolyte; 505: Negative electrode current collector; 506: Negative electrode active material layer; 507: Outer packaging body; 507a: Joint; 507b: Edge; 511: Positive electrode; 511a: Region; 515: Negative electrode; 520: Sealing layer; 521: Positive electrode lead; 525: Negative electrode lead.

[0442] This application is based on Japanese Patent Application No. 2016-035810 filed with the Japan Patent Office on February 26, 2016, the entire contents of which are incorporated herein by reference.

Claims

1. A power supply device, comprising: a connecting member including a pivot hinge; a conductive member including a tubular portion and a foot; as well as Battery, wherein the tubular portion includes a region covering the pivot hinge and engaging the pivot hinge, The foot is electrically connected to the battery, and The pivot hinge in the area covered by the tubular portion comprises a first area having a conductive surface and a second area having an insulating surface.

2. The power supply device according to claim 1, wherein: The conductive member is configured to rotate about the axis of the pivot hinge, and The conductive member is configured to slide in a direction in which the axis of the pivot hinge extends. 3 . The power supply device according to claim 1 , wherein a cross-sectional shape of the tubular portion is a ring or a partially cut-away shape.

4. The power supply device according to claim 1, further comprising: Outer packaging, The outer package includes a region covering the battery, the conductive component, and the connecting component.

5. A power supply device, comprising: A connecting member, comprising a first pivot hinge, a second pivot hinge, a pipe, and a spring between the first pivot hinge and the second pivot hinge; a first conductive member including a first tubular portion and a first leg; a second conductive member including a second tubular portion and a second leg; and Battery, The first tubular portion includes a region covering the first pivot and engaging with the first pivot, The second tubular portion includes a region covering the second pivot and engaging the second pivot, The first leg and the second leg are electrically connected to the battery, The first pivot hinge comprises a first region and a second region, The first region is partly arranged in the duct and partly covered by the first tubular portion, The second region is partially covered by the first tubular portion and protrudes from the first tubular portion, and The first region has insulating properties, and the second region has conductive properties.

6. The power supply device according to claim 5, wherein: The first conductive member is configured to rotate about an axis of the first pivot, and The first conductive member is configured to slide in the extending direction of the axis of the first pivot hinge, The second conductive member is configured to rotate about an axis of the second pivot, and The second conductive member is configured to slide in a direction in which the axis of the second pivot hinge extends.

7. The power supply device according to claim 5, wherein: The cross-sectional shape of the first tubular portion is a ring or a partially cut-away shape, and The cross-sectional shape of the second tubular portion is a ring or a partially cut-away shape.

8. The power supply device according to claim 5, further comprising an outer packaging body, The outer package includes a region covering the battery, the first conductive component, the second conductive component, and the connecting component.

9. The power supply device according to claim 1 or 5, wherein the battery has flexibility.

10. A power supply device, comprising: a connecting member including a pivot hinge; a conductive member including a tubular portion and a foot; a protection circuit electrically connected to the conductive component; and a battery, electrically connected to the conductive component through the protection circuit, in, The tubular portion includes a region covering the pivot hinge and engaging the pivot hinge, The foot is electrically connected to the battery, The pivot hinge in the area covered by the tubular portion includes a first area having electrical conductivity and a second area having insulating properties, and The protection circuit is provided in a band-shaped outer package, and the band-shaped outer package is configured to be bent.

11. The power supply device according to claim 10, in, The conductive member is configured to rotate about the axis of the pivot hinge, and The conductive member is configured to slide in a direction in which the axis of the pivot hinge extends.

12. The power supply device according to claim 10, wherein the protection circuit is configured to stop charging of the battery when the battery is overcharged.

13. The power supply device according to claim 10, in, The protection circuit is configured to stop charging the battery when the battery is overcharged, The protection circuit is configured to stop the discharge of the battery when the battery is over-discharged, and The protection circuit is configured to prevent a large current when the positive electrode and the negative electrode are electrically short-circuited.

14. The power supply device according to claim 10, wherein the protection circuit is provided in a printed circuit board or a flexible printed circuit.

15. A system comprising: Electronic equipment; and The power supply device according to claim 10, in, The battery is electrically connected to the electronic device through the connecting component.

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