Battery control method

Abstract

To achieve a device that can be used for a long time, provide a power source that can be easily attached and detached and is not detached in use, a connection method of the power source, or a connection member, provide a power source that is easily replaceable, a connection method of the power source, or a connection member, and provide a power source excellent in design.SOLUTION: Power from a battery is supplied to an electronic device via a connection member having a pipe, a spring, and a pair of pivots. Each of the pair of pivots is electrically insulated and electrically connected with one of a pair of electrodes of the battery. The electronic device has a pair of bearings to which the pair of pivots are inserted, the pair of bearings being capable of receiving power.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] 1. Field of the Invention One aspect of the present invention relates to a battery. 1. Field of the Invention One aspect of the present invention relates to a power transfer mechanism for a battery. One aspect of the present invention relates to a wearable electronic device. One aspect of the present invention relates to charging and discharging a battery. This relates to a system.

[0002] Note that one embodiment of the present invention is not limited to the above technical fields. The technical field of one embodiment of the present invention is a semiconductor device, a display device, a light-emitting device, a power storage device, a memory device, Electronic device, lighting device, input device, input / output device, driving method thereof, or manufacturing method thereof can be cited as an example. [Background technology]

[0003] Mobile information terminals such as smartphones and tablet terminals are being actively developed. In addition, such portable information terminals are required to be lightweight and small. There are.

[0004] In recent years, the development of wearable electronic devices has become more and more popular. Examples of wearable devices include wristwatch-type devices worn on the arm and glasses-type devices worn on the head. Examples include mirror-type devices and necklace-type devices worn around the neck. For example, wristwatch-type devices Instead of a dial, a watch has a small display, and displays various information other than the time. Such wearable devices can provide users with information about their health and the environment. It is also attracting attention for uses such as self-management of health status, and its practical application is progressing.

[0005] Portable devices often have secondary batteries that can be repeatedly charged. Since small secondary batteries are used in portable devices, the secondary batteries are lightweight, small, and have a long life. It is required that time be available.

[0006] For example, Patent Document 1 discloses a flexible secondary battery that uses a film for its exterior. A wearable device is disclosed. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2015-038868 A Summary of the Invention [Problem to be solved by the invention]

[0008] An object of one embodiment of the present invention is to realize a device that can be used for a long period of time.

[0009] Another aspect of the present invention is to provide a power supply device that is easy to attach and detach and does not come off during use. Another object of the present invention is to provide a power supply device that is easily replaceable. Another object of the present invention is to provide a power supply device with excellent design. One of the objects of the present invention is to provide a power supply device that is comfortable to wear.

[0010] Another object of the present invention is to provide a method for connecting such a power supply device or a connecting member. Another object of the present invention is to provide a device to which such a power supply unit can be connected. Alternatively, it is possible to provide an electronic device that uses such a power supply device, and a system having the same. One of the challenges we face is to: [Means for solving the problem]

[0011] One aspect of the present invention is a connection member having a pair of pivots, a pipe, and a spring. The rod has a tip, a flange, a shaft, and an end. The spring is inside the pipe. The end portion is a portion located inside the pipe and is located between the pair of pivots. The tip and flange are parts that protrude from the pipe in a natural state, and the shaft is The stem is a part located between the end and the shaft. The spring has a portion that is located inside the pipe when it is in a compressed state. The shaft and the tip are , the pair of pivots are electrically insulated from each other.

[0012] In the above, the surfaces of the end portions of the pair of pivots and the end portions of the shaft portions are It is preferable that the surfaces of the portions have insulating properties.

[0013] In the above, it is preferable to have two springs. It is preferable that the shock absorbing member has a surface that is insulating. In this case, it is preferable that the buffer member and the pipe are integrally provided. .

[0014] In the above, the surface of the spring preferably has insulating properties.

[0015] Another aspect of the present invention is a battery comprising the above-mentioned connection member, a battery, and a band-shaped exterior body. Here, the battery has a pair of electrodes. Each of the pair of electrodes is The battery is electrically connected to the shaft portion. The exterior body is provided to cover the battery and the pipe of the connection member. The tip of the connection member is provided so as to be exposed from the exterior body.

[0016] In the above, it is preferable that the electroconductive member includes a pair of conductive members. It is preferable that the conductive member is electrically connected to the electrode of the battery. A contacting fit is preferred.

[0017] In the above, the shaft portion is rotatable in a rotation direction and slidable in an extension direction of the shaft portion. It is preferable to mate with the conductive member as much as possible.

[0018] Alternatively, in the above, the shaft portion is fixed in the rotation direction and is slidable in the extension direction of the shaft portion. It is preferable that the conductive member be fitted so that the conductive member can be inserted into the electrical connector.

[0019] In the above, it is preferable that the exterior body has flexibility. It is preferable that the insulating layer 100 has a function of deforming in accordance with the deformation of the exterior body.

[0020] Another aspect of the present invention is a power supply to which the connection member or the power supply device can be attached. The electronic device includes a housing and a power control circuit. The housing includes a pair of bearings. The power control circuit is disposed in the housing. The bearing portion is electrically connected to the tip of the connection member. The pair of bearings and the power control circuit can be connected to each other by wiring. It is preferable that the electrodes are electrically connected to each other via a wire.

[0021] In the above, the pair of bearings are electrically insulated from each other within the housing. It is preferable that the sensor has a function of detecting electrical continuity.

[0022] Alternatively, in the above, a function for detecting a potential difference between the pair of bearings is provided in the housing. , preferably having a sensor.

[0023] Another aspect of the present invention is a battery comprising a pair of bearings, a control unit, a power supply control unit, and a first battery. The system includes a pair of axes, a sensor, and a functional circuit. The power supply control unit has a function of outputting the potential difference between the receiving parts as potential information to the control unit. and the power of the first battery and the power supplied from the pair of bearings; The control unit has a function of outputting either one of the potential information and the potential information indicating the conductive state to the functional circuit. , an insulation state, or a state in which the potential difference is below a predetermined value. a function of controlling a power supply control unit so as to output power from the first battery; When the information indicates a state in which the potential difference is equal to or greater than a certain value, the power supplied from the pair of bearings is and a function of controlling the power supply control unit so as to output the

[0024] In the above, it is preferable that the power supply control unit includes a power receiving unit. The power supplying device has a function of outputting the power supplied from the first battery and the pair of bearings. It is preferable that the control unit detects a state in which the potential difference is lower than a predetermined value. When the power supply control unit is in the above-mentioned condition, the power supply control unit is controlled so as to output the power supplied from the power receiving unit to the bearing unit. It is preferable that the ion exchange resin has a function of Effect of the Invention

[0025] According to one aspect of the present invention, a device that can be used for a long time can be realized. It is possible to provide a power supply device that is easy to install and does not come off during use. It is possible to provide a power supply device that is excellent in design. It is also possible to provide a power supply device that is comfortable to wear. It is therefore possible to provide a power supply device that is excellent in

[0026] According to another aspect of the present invention, there is provided a method or member for connecting such a power supply device. Alternatively, a device to which such a power supply unit can be connected can be provided. It is possible to provide an electronic device that uses such a power supply device, and a system that has the electronic device. [Brief description of the drawings]

[0027] [Figure 1] 1A to 1C are diagrams illustrating an electronic device, a power supply device, and a connection member according to an embodiment. [Diagram 2] 5A to 5C are diagrams illustrating a connection member according to an embodiment. [Diagram 3] 1 is a diagram illustrating a power supply device according to an embodiment; [Figure 4] 5A to 5C are diagrams illustrating conductive members according to an embodiment. [Diagram 5] 1 is a diagram illustrating a power supply device according to an embodiment; [Figure 6] 1 is a diagram illustrating a power supply device according to an embodiment; [Figure 7] 1 is a diagram illustrating a power supply device according to an embodiment; [Figure 8] 1A to 1C are diagrams illustrating electronic devices according to an embodiment. [Figure 9] FIG. 1 is a diagram illustrating a system according to an embodiment. [Figure 10] FIG. 2 is a diagram illustrating a method of operating the system according to the embodiment. [Figure 11] FIG. 2 is a diagram illustrating a method of operating the system according to the embodiment. [Figure 12] FIG. 2 is a diagram illustrating a method of operating the system according to the embodiment. [Figure 13] 1A to 1C are diagrams illustrating electronic devices according to an embodiment. [Figure 14] 1A to 1C are diagrams illustrating electronic devices according to an embodiment. [Figure 15] 1A and 1B are diagrams illustrating a structure of a secondary battery according to an embodiment. [Figure 16]1A and 1B are diagrams illustrating a structure of a secondary battery according to an embodiment. [Figure 17] 1A to 1C illustrate a method for manufacturing a secondary battery according to an embodiment. [Figure 18] 1A to 1C illustrate a method for manufacturing a secondary battery according to an embodiment. [Figure 19] 1A to 1C illustrate a method for manufacturing a secondary battery according to an embodiment. [Figure 20] 1A to 1C illustrate a structure and a manufacturing method of a secondary battery according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] The embodiment will be described in detail with reference to the drawings. However, the present invention is not limited to the following description. The present invention is not limited to the above embodiment, and various changes and modifications may be made in the form and details without departing from the spirit and scope of the present invention. It will be easily understood by those skilled in the art that the present invention can be realized by the following embodiments. The present disclosure should not be construed as being limited to the contents of the preceding paragraph.

[0029] In the configuration of the invention described below, the same parts or parts having similar functions are The same reference numerals are used in common between different drawings, and the repeated explanations are omitted. When referring to a function, the hatch pattern may be the same and no particular symbol may be used.

[0030] In each figure described in this specification, the size, layer thickness, or area of ​​each component is indicated by the following formula: The figures may be exaggerated for clarity and are not necessarily limited to scale. stomach.

[0031] In this specification, ordinal numbers such as "first" and "second" are used to avoid confusion of components. The numbers are added for the purpose of convenience and are not intended to be limiting.

[0032] (Embodiment 1) One aspect of the present invention is a connection member having a pipe, a spring, and a pair of pivots. The connection member is, for example, a housing (also called a main body or a case) in a wristwatch-type device. Used as a spring bar to attach a band (also called a strap or belt) In the following description, the connecting member according to one embodiment of the present invention may be referred to as a spring bar. .

[0033] The pivot of the connection member according to one embodiment of the present invention has a tip portion, a flange portion, a shaft portion, and an end portion. The pair of pivots are electrically insulated from each other. The portion and the shaft portion are electrically conductive, and their surfaces are electrically conductive.

[0034] The pivot shaft is electrically connected to one of the pair of electrodes (tabs, wires, etc.) of the battery. At this time, the pair of pivots of the connecting member are insulated from each other. This prevents a pair of electrodes of the battery from becoming electrically connected. The two ends of the connecting member are connected to either one of a pair of electrodes of the battery. In other words, the two ends are electrically connected to one of the batteries. It can function as a pair of terminals.

[0035] In this way, by attaching the connection member to which the battery is connected to the electronic device, The battery can be used as an auxiliary power source for an electronic device. The connecting member is attached to a pair of bearings. Power from the battery is supplied to the electronic device.

[0036] In addition, when a secondary battery is used as the battery, the bearing of the electronic device is connected to the connecting member. In this case, the electronic device itself acts as the main power source. The battery may be attached via a connecting member. It is possible to set in advance which of the batteries in the electronic device and the battery in the device itself will be charged first. It is preferred that the setting be predefined or user selectable.

[0037] The battery uses a flexible film as the exterior body and repeats bending and stretching motions. This makes it possible to suitably use a battery that can be connected to the battery. A part of the material can be disposed inside the band-shaped exterior body. The appearance and fit of the exterior body are similar to that of a conventional band (strap, belt, etc.) that does not have a battery. can be made equivalent to

[0038] If a battery that cannot be bent is used, a band-shaped The battery can be placed inside the unbending part of the exterior body. There are various types of batteries, such as coin type (button type), cylindrical type, and prismatic type. Ponds can be used.

[0039] Such a band-shaped power supply device can be attached to an electronic device using the above-mentioned connecting member. For example, if the battery charge level becomes low, When the battery is degraded, or when a primary battery is used as the battery, etc. In addition, when the auxiliary power supply is not required, the user can simply replace the conventional spring. The stick can also be used to replace a traditional (battery-less) band. Users can freely choose between the band-type power supply unit and the conventional band depending on their purpose and preference. The device can be attached to an electronic device.

[0040] The electronic device to which the connection member and the power supply device of one aspect of the present invention can be attached has a pair of shafts. A function to detect the potential difference between the bearings, or to detect whether the pair of bearings is in a conductive or insulated state. It is preferable that the device has a function of detecting that the

[0041] For example, when the connecting member according to one aspect of the present invention or the conventional spring bar is not attached, The pair of bearings are insulated from each other, and each bearing is in an electrically floating state. In addition, the battery is not connected to the connection member of the present invention. When the spring bar is attached to the bearing, the pair of bearings are electrically insulated. When this happens, depending on the material of the spring bar, it may become insulated or conductive (short circuit). In this way, when it is detected that the pair of bearings is in a conductive state or an insulated state, It is possible to determine that the connection member to which the battery is connected is not attached, The electronic device can be operated using the power of another battery that the device itself has.

[0042] On the other hand, when the connection member according to one aspect of the present invention to which the battery is connected is attached, A potential difference occurs between the pair of bearings according to the output voltage of the battery. This potential difference is detected By doing so, it is possible to determine that the connection member to which the battery is connected is attached. The electronic device can be operated by the power supplied from the battery.

[0043] Below, specific configuration examples of the connection member, the power supply device, and the electronic device according to one embodiment of the present invention will be described. An example of the present invention and a system according to one embodiment of the present invention will be described with reference to the drawings.

[0044] [Example of application] First, an example of a case in which the connection member and the power supply device described below are attached to an electronic device will be described. Here, a wristwatch-type information terminal device will be described as an example of the electronic device.

[0045] 1(A) and 1(B) show a connection member 10, a power supply unit 20a, and a power supply unit 20b. An example of a connected electronic device 30 is shown. FIG. 1(A) is a front view, and FIG. 1(B) is a side view. is doing.

[0046] The electronic device 30 includes a housing 31 and a switch 35. The switch 35 is disposed on the side of the housing 31. The housing 31 also has a display unit 32, a lug 33, and a bearing unit 34. .

[0047] The display unit 32 can display various image information. A display device using a display element such as an organic EL element can be used. It is preferable that the display unit 32 is a touch panel having a function as a touch sensor.

[0048] In addition, when the electronic device 30 is made to function as an analog clock instead of an information terminal device, The display unit 32 may be replaced with a dial having at least one of an hour hand, a minute hand, and a second hand. In addition, when the electronic device 30 is to function as a digital clock, the display unit 32 can be set to a The display panel can be replaced with a dial having a segmented liquid crystal element or the like.

[0049] The switch 35 functions as one of the user interfaces. Push, pull, turn, or slide the switch 35 up and down or forward and backward. The electronic device 30 can perform operations such as the above in conjunction with the application. You can launch applications, switch between them, or perform other operations. In the example shown, one switch 35 is provided on the housing 31, but other switches may also be provided. It is okay to do so.

[0050] The lug 33 is a portion to which the connection member 10 and other components such as a spring bar are attached. Alternatively, a part of the housing 31 may function as the lug 33. The pair of lugs 33 are arranged symmetrically. The bearings 34 are provided on the opposing surfaces. At 34, the connecting member 10 can be attached.

[0051] The bearing portion 34 is inserted into the tip portion 12a of the pivot 12 of the connecting member 10 described later. The bearing portion 34 has a conductive portion, and the tip portion 12a has a recess. A potential is applied.

[0052] The power supply unit 20a and the power supply unit 20b are each used for attaching the electronic device 30 to the arm or the like. It functions as a mounting (band, strap, belt, etc.) for the device.

[0053] Each of the power supply units 20a and 20b has a strip-shaped exterior body 21. A battery 22 is provided inside the battery 1. The connection member 10 is also partially separated from the exterior body 21. The battery 22 has a pair of tabs 23. The connector 23 is joined to a conductive member 25. The conductive member 25 is a connecting member 10 described later. The conductive member 25 and the pivot 12 are electrically connected to each other. is connected to.

[0054] The pair of tabs 23 of the battery 22 are electrically connected to the bearing portion 34 via the connection member 10. This allows the battery 22 to supply power to the electronic device 30, and The electronic device 30 is then able to charge the battery 22 .

[0055] In this embodiment, two power supply devices, the power supply device 20a and the power supply device 20b, are connected to the electronic device 30. The following shows an example of the device being attached to the This may be replaced with a different word (e.g., a top).

[0056] [Example of connection member configuration] FIG. 1C shows a schematic cross-sectional view of the connection member 10 in a direction parallel to the axial direction.

[0057] The connecting member 10 includes a pipe 11 , a pair of pivots 12 , and a spring 13 .

[0058] The pivot 12 is made up of a tip portion 12a, a flange portion 12b, a shaft portion 12c, and a terminal portion 12d. has.

[0059] The pipe 11 is hollow and has a narrowed end. Inside 11, a spring 13 and the end portions 12d of a pair of pivots 12 are provided. The spring 13 is provided in a state where its length is shorter than its natural length in the natural state. Due to the force, a force is applied to the pair of pivots 12 in the outward direction.

[0060] The tip portion 12a and the flange portion 12b are portions that protrude from the pipe 11 in a natural state. In addition, the shaft portion 12c has a portion that protrudes from the pipe 11 in a natural state. When an external force is applied in the direction in which the spring 13 is compressed, a part of the shaft portion 12c is inserted into the pipe 11. The end portion 12d has a portion that is inserted into the pipe 11 in a natural state. Here, the natural state refers to a portion in which the connecting member 10 is in a axial (longitudinal) position. This refers to a state in which no force is being applied from the

[0061] 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 The diameter of the hole at the end of the pipe 11 is equal to or smaller than that of the hole at the end of the pipe 11. Even if force is applied to the bot 12, the pivot 12 will not jump out of the pipe 11. It can be prevented.

[0062] The tip portion 12a is a portion to be inserted into a hole of a bearing portion 34 of the electronic device 30. The flange portion 12b is a portion that engages with a recess of the bearing portion 34. In addition, the flange portion 12b is engaged with a part of the bearing portion 34, so that the electronic device 30 When the connecting member 10 is attached to the

[0063] In addition, the flange portion 12b is a removal tool that can be used when attaching and detaching the connection member 10. This allows the connection member 10 to be attached to the electronic device 30. The flange portion 12b is formed at the tip end of the electronic device 30. The shaft portion 12c has one or more portions having a larger diameter than the shaft portion 12a. As shown in FIG. In addition, if the flange portion 12b has two or more portions with a larger diameter than the other portions, the convenience is improved. For example, a removal tool can be inserted between the two large diameter parts. can be done.

[0064] FIG. 1C shows a state in which a conductive member 25 is attached to the connection member 10. The conductive member 25 has a portion that fits onto the shaft portion 12c. By joining the conductive member 25 to the conductive member 25, the conductive member 25 is It is preferable that the shaft portion 12c is attached to the shaft portion 12c so as to be slidable in the axial direction.

[0065] FIG. 1D shows a state in which a force is applied from the outside to the pair of pivots 12 in the state shown in FIG. 1(D) is a schematic cross-sectional view of the spring 13 in a contracted state. When the spring 13 is compressed, a part of the shaft portion 12c enters the inside of the pipe 11. It becomes a state of mind.

[0066] In FIG. 1D, the axial width of the conductive member 25 and the length of the shaft portion 12c protruding from the pipe 11 are The conductive member 25 has one end that is a pad. The end of the flange 12b is in contact with the end of the flange 11, and the other end of the flange 12b is in contact with the flange 12b. ) is a state in which the pivot 12 cannot slide further inward. It can also be said that the connection member 10 is in its most contracted state.

[0067] Also, by loosening the external force from the state shown in Fig. 1(D), the state changes to that shown in Fig. 1(C). At this time, since the conductive member 25 is slidably attached to the shaft portion 12c, The position of the conductive member 25 remains as shown in FIG.

[0068] Here, in FIG. 1(C) and (D), the tip portion 12a, the flange portion 12b, and the shaft portion 12c are A part of the shaft portion 12c has a conductive surface. On the other hand, another part of the shaft portion 12c and the end portion 12d have a conductive surface. The surface is insulating. It is marked with a circle.

[0069] In the case where the surface of the end portion 12d is insulating and the spring 13 is conductive, However, the pair of pivots 12 can be electrically insulated.

[0070] In addition, the end portion 12d and a part of the shaft portion 12c are insulating, so that the pipe 11 can be easily guided. Even if the pair of pivots 12 has electrical conductivity, the pair of pivots 12 should be electrically insulated. At this time, as shown in FIG. 1(D), when the pivot 12 is positioned at the innermost position, In this case, it is sufficient that the portion of the shaft portion 12c that comes into contact with the end of the pipe 11 has insulating properties. As shown in FIG. 1C, when the pivot 12 is positioned at the outermost position, the conductive shaft 12c It is important that the portion having the conductive member 25 comes into contact with the conductive member 25.

[0071] The surface of the end of the pipe 11 and the surface of the end of the conductive member 25 are conductive. In the case where the conductive member 25 and the pipe 11 are in contact with each other, as shown in FIG. Sometimes, the pair of conductive members 25 may be electrically shorted. In that case, As shown in FIG. 1(E), an insulating buffer material 14 is provided between the conductive member 25 and the pipe 11. The buffer material 14 is preferably a ring-shaped material such as rubber or plastic. The following structures can be used.

[0072] Here, the pipe 11, the pivot 12 and the spring 13 are typically made of metal such as stainless steel. In addition, when such metals are used, a part or the whole of the surface is The method of insulating the material is to form an insulating film by oxidizing the surface or plating. Alternatively, the pipe 11, the pivot 12, the spring 1 An insulating material such as resin may be used for 3. When resin is used, the surface For example, a conductive film may be formed by plating or the like. There are ways to achieve this.

[0073] Here, the configuration of the connection member 10 is not limited to the configuration shown in FIG. 1(C) and the like. 2 is electrically insulated. Other examples of the connection member 10 will be described below. .

[0074] The pivot 12 of the connection member 10 shown in FIG. 2(A) has a surface of the shaft portion 12c and an end The surfaces of the portions 12a and 12b are electrically conductive. The surface of the opening and the pipe 11 are insulating. The cushioning material 15 has an insulating surface. It has sexuality.

[0075] In FIG. 2(A), springs 13a and 13b are separated by a cushioning material 15. The pipe 11, which is in contact with the springs 13a and 13b, has an insulating surface. Therefore, the springs 13a and 13b are electrically insulated from each other. Even if the bots 12 are each conductive, they are electrically connected via the springs 13a and 13b. Therefore, they cannot be shorted together and are electrically isolated.

[0076] In addition, by adopting such a configuration, the entire surface of the shaft portion 12c of the pivot 12 is made conductive. This allows the contact area between the shaft portion 12c and the conductive member 25 to be increased. Therefore, the contact resistance therebetween can be reduced.

[0077] FIG. 2B shows a pipe 11 having a partition wall 11a instead of the cushioning material 15 shown in FIG. 2A. The partition wall 11a is located at the approximate center of the pipe 11, and the spring 13a and the It has the function of separating it from Ne 13b.

[0078] FIG. 2C shows a case where the surface of the pipe 11 and the surface of the spring 13 are both insulating. The following shows an example of the case.

[0079] Here, in the above, the conductive member 25 comes into contact with the shaft portion 12c of the pivot 12, so that the conductive member Although the configuration in which the conductive member 25 and the pivot 12 are electrically connected has been shown, the present invention is not limited to this. Any configuration may be used as long as the conductive member 25 and the tip portion 12a of the pivot 12 are electrically connected to each other.

[0080] FIG. 2D shows a pipe 11 having a pair of conductive portions 11b and a pair of conductive portions 11b. The pair of portions 11b are electrically insulating. The conductive member 25 is fitted into the portion 11b. Therefore, the pivot 12 and the conductive member 25 are electrically connected through the portion 11b. do.

[0081] Here, as shown in FIG. 2(D), the portion 11b and the portion 11c have a screw structure. It is preferable that they are fastened by this fastening mechanism. These may also be joined by an adhesive or the like.

[0082] FIG. 2D shows an example in which springs 13a and 13b are separated by a cushioning material 15. However, they may be separated by a partition wall 11a of the pipe 11, as in FIG. 2(B). As shown in FIG. 2(E), a spring 13 having an insulating surface is provided without a cushioning material 15. This may also be configured.

[0083] The above is a description of the connection members.

[0084] [Battery configuration example] An example of the configuration of the battery 22 that can be used in the power supply device 20 will be described below. .

[0085] 3A shows a schematic top view of the battery 22 to which the conductive member 25 is connected. The battery 22 has a pair of tabs 23, an exterior body 26, and a content 27. The battery 22 is a secondary Preferably it is a battery.

[0086] The exterior body 26 may be made of a flexible film having excellent moisture resistance. For example, It is preferable to use a laminated film in which a metal film and a plastic film are laminated. This makes it possible to realize a bendable battery 22.

[0087] The contents 27 are sealed in the exterior body 26. The exterior body 26 is The contents 27 include at least a positive electrode, a negative electrode, and an electrolyte. These will be explained in detail later.

[0088] The pair of tabs 23 are each electrically connected to either the positive electrode or the negative electrode. A portion of the tab 23 protrudes from the exterior body 26 and is exposed.

[0089] The pair of tabs 23 are joined to the conductive members 25 by a joining method such as ultrasonic joining. It is being done.

[0090] The battery 22 may have a protection circuit. FIG. 3B shows a battery 22 provided with a protection circuit 28. 2 shows an example in which the substrate 29 is provided with a

[0091] The substrate 29 may be, for example, a PCB (Printed Circuit Board) or FPC (Flexible printed circuit) can be used. FIG. 3B shows an example in which the protection circuit 28 is an IC chip mounted on a substrate 29. do.

[0092] The protection circuit 28 has a function of, for example, stopping charging when the battery 22 is overcharged, A circuit having a function to stop discharging when the battery 22 is over-discharged can be used. In addition, it has a function to prevent a large current from flowing if the positive and negative electrodes are shorted. It is preferable that

[0093] The substrate 29 has a pair of electrodes connected to the tab 23. The substrate 29 is also connected to the wiring 24. The electrodes and tabs 23 of the substrate 29, and the electrodes and wiring 24 of the substrate 29 are connected to each other. , are bonded by a bonding method such as ultrasonic bonding.

[0094] The wiring 24 is a wiring that electrically connects the conductive member 25 and the substrate 29. For this purpose, cable-like wiring or FPC may be used.

[0095] In addition, the method of connecting the tab 23 and the substrate 29, the method of connecting the wiring 24 and the substrate 29, and the wiring The connection between the conductive member 24 and the conductive member 25 may be made via a connector. stomach.

[0096] 3A and 3B show an example of the battery 22 in which a film is used for the exterior body 26. However, the present invention is not limited to this, and a coin-type (button-type) battery may also be used.

[0097] FIG. 3C shows an example in which a coin-type battery 41 is used. FIG. 3D shows In this example, a substrate 29 on which a protection circuit 28 is provided is connected to a battery 41.

[0098] In the battery 41, a part of the exterior body (the front side and the back side) functions as a positive electrode or a negative electrode. As shown in FIG. 3C, the electrode 42a is electrically connected to the electrode on the back side of the battery 41. The electrode 42b is electrically connected to the electrode on the front side of the battery 41. 2a and electrode 42b are electrically connected to conductive member 25, respectively.

[0099] In order to mount the coin-type battery 41 on the wristwatch-type electronic device 30 shown in FIG. When the power supply device 20 is used, when the exterior body 21 of the power supply device 20 is worn on the arm or the like, For example, the battery 41 is preferably disposed in the power supply device 20. The electronic device 30 is placed close to the electronic device 30 or far from the electronic device 30, and the electronic device 30 is placed close to the center. It is preferable not to place it in the part.

[0100] This concludes the explanation of the battery.

[0101] [Conductive material] In the following, a conductive material for electrically connecting the electrode (tab) of the battery and the connection member 10 will be described. An example of the functional member 25 will now be described.

[0102] FIG. 4(A) is a schematic diagram showing the conductive member 25 and a part of the shaft portion 12c of the pivot 12. In this example, the conductive member 25 is connected to the shaft portion 12c. By increasing the diameter of the conductive member 25, it is possible to connect the conductive member 25 to a part of the pipe 11 as shown in FIG. The configuration may be such that the two are connected in series.

[0103] The conductive member 25 shown in FIG. 4(A) includes a cylindrical portion having a hole into which the shaft portion 12c is fitted, The conductive member 25 has legs that are connected to the tabs of the battery. The cross section of the cylindrical portion is annular, and the cross section of the shaft portion 12c is circular. As shown by the arrow in the figure, the conductive member 25 and the shaft portion 12c are rotated in the direction The shaft portion 12c can be configured to be rotatable relative to the shaft 12a and slidable in the extending direction of the shaft portion 12c.

[0104] FIG. 4B shows an example in which the cross section of the shaft portion 12c has a shape in which a part of a circle is cut out. The shape of the hole in the conductive member 25 is also adjusted to fit the shaft portion 12c. With this configuration, the conductive member 25 and the shaft portion 12 a conductive portion, The member 25 and the shaft portion 12c can be connected.

[0105] As shown in FIG. 4(C), the cross section of the shaft portion 12c has a substantially polygonal shape. FIG. 4C shows an example in which the cross section of the shaft portion 12c is a rectangle with rounded corners. With such a configuration, the conductive member 25 and the shaft portion 12c are fixed in the rotation direction. The conductive member 25 and the shaft portion 12c are connected to each other in a state in which the conductive member 25 and the shaft portion 12c can slide in the extending direction of the shaft portion 12c. It can be connected.

[0106] As shown in FIGS. 4A, 4B, and 4C, a part of the conductive member 25 is formed into a cylindrical shape. This is preferable because it is possible to increase the contact area between the conductive member 25 and the shaft portion 12c. When the conductive member 25 is formed in a cylindrical shape, for example, a material that shrinks due to heat or the like is used for the conductive member 25. The material is inserted from the tip 12a side in a state where the diameter is larger than that of the flange 12b. Then, Alternatively, a belt-shaped member may be wound around the shaft portion 12c. The cylindrical portion of the conductive member 25 may be formed by bonding the conductive member 25 to the cylindrical portion.

[0107] FIG. 4(D) shows a conductive member 25 having a cylindrical shape with a part cut out (a cross-sectional shape may be an arc shape). In FIG. 4(D), a part on the opposite side to the leg is cut off. By adopting such a configuration, the shaft portion 12c and the conductive This makes it possible to easily attach and detach the member 25.

[0108] In FIG. 4D, the conductive member 25 and the shaft portion 12c are rotated in the rotation direction relative to the shaft portion 12c. The shaft portion 12c is connected in a slidable state in the extending direction of the shaft portion 12c.

[0109] FIG. 4E shows an example in which the position of the cutout portion of the conductive member 25 is different from that shown in FIG. 4D. This shows that.

[0110] Also, Fig. 4(F) and Fig. 4(G) show examples in which the cross section of the shaft portion 12c is not circular. With this configuration, the conductive member 25 and the shaft portion 12c are fixed in the rotation direction. The conductive member 25 and the shaft portion 12c are fixed to each other and are slidable in the extending direction of the shaft portion 12c. In addition, the conductive member 25 and the shaft portion 12c can be easily attached and detached. can be done.

[0111] The conductive member has been described above.

[0112] [Power supply configuration example] An example of a power supply device that can be attached to an electronic device will be described below. In particular, a power supply device applicable to a wristwatch-type electronic device 30 will be described.

[0113] FIG. 5(A) is a schematic perspective view of the power supply device 20a, and FIG. 5(B) is a schematic perspective view of the power supply device 20a. FIG. 2 is a schematic perspective view showing an internal structure.

[0114] The power supply device 20a includes a connection member 10, a battery 22, an exterior body 21a, an exterior body 21b, and The connection member 10 has a buckle 51 etc. A part of the connection member 10 protrudes from the power supply device 20a.

[0115] As shown in FIG. 5B, the battery 22 is sandwiched between the exterior body 21a and the exterior body 21b. A space for installing the battery 22 is provided on the inner surfaces of the exterior body 21a and the exterior body 21b. This allows the battery 22 to be mounted on the battery holder 21 and the battery holder 22 to be mounted on the battery holder 21. The thickness can be made uniform between the areas where the mask is not installed, making the mask more comfortable to wear. This can be done.

[0116] The exterior body 21a and the exterior body 21b are a normal band (without a battery) or the like. Similar materials can be used. For example, various materials such as rubber, leather, cloth, metal, resin, etc. In particular, when rubber or resin is used, molding is easy, which is preferable. stomach.

[0117] 6(A) and (B) are schematic perspective views of the power supply device 20b that is paired with the power supply device 20a. The power supply device 20b includes a connection member 10, a battery 22, an exterior body 21c, and an exterior body 21. d etc.

[0118] The exterior body 21c and the exterior body 21d are different from the above in that they have a plurality of holes 52 instead of the buckle 51. It is different from the exterior body 21a and the exterior body 21b.

[0119] In this manner, the power supply units 20a and 20b are not limited to the conventional spring bars and the conventional (battery A combination of a band, belt, strap, or other attachment (not having a strap, etc.), It is possible to achieve a form in which there is almost no difference in appearance.

[0120] The power supply device 20a and the power supply device 20b are attached to the electronic device 30, In addition to functioning as a power source, it can also function as an auxiliary power source or a main power source for the electronic device 30. can be done.

[0121] By using the power supply unit 20a or 20b according to one embodiment of the present invention, This increases convenience as there is no need to carry a power source around. Since there is no need to connect a separate auxiliary power supply to the child device 30, it can be used even with the auxiliary power supply connected. It is possible to realize an electronic device that is not bulky and allows easy movement even when worn. Since there is no need to connect the auxiliary power supply with a connector, there is no risk of the auxiliary power supply coming off and falling off. In addition, since there is no need to provide a terminal for inserting the connector in the electronic device 30, This makes it possible to improve waterproofing and realize electronic devices with excellent design.

[0122] Here, the battery 22 included in the power supply device 20a and the power supply device 20b is enclosed in an exterior body 26. By providing the surface with an uneven shape, the reliability of the battery 22 is improved when the battery 22 is repeatedly bent. It is possible.

[0123] FIG. 7(A) shows an example in which the surface of the exterior body 26 has a mesh-like embossed shape. In addition, in FIG. 7(B), the surface of the exterior body 26 has a stripe-shaped embossed pattern. An example is shown.

[0124] If the exterior body 26 has an uneven shape, when the battery 22 is bent, the battery 22 may be located on the outside of the bend. The outer casing 26 is formed so that the convex and concave portions located on the inner side of the bend expand and the convex and concave portions located on the inner side of the bend contract. This makes it possible to relieve the stress applied to the exterior body 26.

[0125] This concludes the description of the power supply device.

[0126] [Examples of electronic device configurations] The following describes more specific examples of electronic devices that can receive power from the above-mentioned power supply device. An example of such a configuration will be described.

[0127] FIG. 8A is a schematic diagram showing the main parts of an electronic device 30. The electronic device 30 is The body 31 includes a control unit 61, a power supply control unit 62, a function circuit 63, etc. It has a receiving portion 34.

[0128] The bearing portions 34 are provided facing each other on a pair of lugs 33 that are provided opposite each other. The bearing portion 34 has a function of fixing the connecting member 10 and a function of supporting the tip portion 12a of the connecting member 10. and a function as a terminal to which a potential of

[0129] In FIG. 8A, a pair of lugs 33 on the upper side of the housing 31 and a pair of lugs 33 on the lower side of the housing 31 are The four bearings 34 are respectively provided as follows: It is electrically connected to the power supply control unit 62 .

[0130] The power supply control unit 62 is a function for controlling charging and discharging of the power supply device 20 attached to the electronic device 30. In addition, the power obtained from the power supply device 20 is output to the control unit 61 and the functional circuit 63. Here, the power supply voltage of the power supply device 20 is supplied to the control unit 61 and the functional circuit 63. The power supply may have a function of converting the power supply voltage into a voltage suitable for use in a power supply.

[0131] The control unit 61 has a function of controlling the operations of the power supply control unit 62 and the functional circuit 63 .

[0132] The functional circuit 63 may be, for example, an input device or an output device. Examples of devices include various switches, sensors (including touch sensors and biosensors), voice inputs, Examples of the output device include a display device, an audio output device, and a vibration device. , light emitting devices, etc.

[0133] FIG. 8B shows a more specific example of the configuration of the electronic device 30. FIG. 8B shows the same configuration as FIG. 1 is a schematic diagram showing the internal structure of electronic device 30 in a region R indicated by a dashed line in FIG.

[0134] FIG. 8(B) shows a state in which the connection member 10 is connected. The conductive member 25 is attached to the shaft portion 12c of the connection member 10, and the conductive member 25 is joined to the shaft portion 12c. Also shown is the tab 42 that has been removed. Also shown is the exterior covering the connection member 10, the conductive member 25, and the tab 42. The body 21 is shown in dashed lines.

[0135] The bearing portion 34 provided on the lug 33 is a terminal 71 that engages with the tip portion 12a of the connection member 10. The terminal 71 is electrically connected to a wiring 72.

[0136] As shown in FIG. 8B, a part of the lug 33 is provided with a flange portion 12b of the connecting member 10 for engagement therewith. It is preferable that a recess is formed so that the connection member 10 can be connected with a stable connection. It is possible to improve the quality.

[0137] In FIG. 8B, the power supply control unit 62 is in the form of an IC chip and is mounted on a substrate 75. The substrate 75 may be, for example, a PCB. 4 and the substrate 75 are electrically connected by wiring 72.

[0138] In this example, FPC 76a and FPC 76b are connected to the substrate 75. do.

[0139] The FPC 76a is electrically connected to a board on which the control unit 61 is mounted. For example, a wiring for supplying a signal from the control unit 61 to the power supply control unit 62 and a wiring for supplying a control signal from the power supply control unit 62 and wiring for supplying power to the board on which the control unit 61 is mounted.

[0140] The FPC 76b is electrically connected to, for example, the functional circuit 63 or a board on which the functional circuit 63 is mounted. A plurality of FPCs 76b may be provided. Alternatively, the control unit 61 and the functional circuits 63 may be connected to each other. When the same power supply voltage is supplied to the control unit 63, the FPC 76b branches and a part of it is 61 may be connected to the substrate on which it is mounted.

[0141] With this configuration, when the power supply device 20 is connected to the electronic device 30, the connection member 10 and the bearing portion 34, the battery 22 (not shown) of the power supply device 20 is charged and discharged. It is possible to control the power supply.

[0142] Here, the bearing portion 34 has a seal material that prevents water and dust from entering the housing 31. In particular, if water comes into contact with the terminal 71 of the bearing portion 34, the battery 22 may short out. However, since there is a risk of a large current flowing, it is effective to provide a seal.

[0143] 8(C) and (D) are enlarged views of the bearing portion 34. FIG. 8(C) shows the flange portion 1 of the lug 33. 8(D) shows an example in which a buffer portion 73a is provided at the portion that engages with 2b. 1 shows an example in which a ring-shaped buffer material 73b is disposed between the lug 33 and the flange portion 12b. The buffer portion 73a and the buffer material 73b can be preferably made of an elastic material such as rubber. In addition, grease or the like is applied to the surface of the buffer portion 73a or the surface of the buffer material 73b. Good too.

[0144] [About the system] In the following, a system configuration including an electronic device 30, a power supply device 20, and a connection member 10 will be described. The following is an example of a configuration and an example of a method for controlling charging and discharging of a battery included in the electronic device 30 and the power supply device 20. We will explain about this.

[0145] [System configuration example] FIG. 9A shows a block diagram of a system 50, which will be described below. The device includes a child device 30 and a power supply device 20.

[0146] In the drawings attached to this specification, the components are classified by function and are divided into independent blocks. Although the block diagram shows a block diagram, the actual components are completely separated by function. This can be difficult, and one component may be involved in multiple functions.

[0147] The configuration of the system 50 illustrated in FIG. 9(A) is an example, and does not include all of the components. The system 50 includes the necessary components among the components shown in FIG. In addition, the device may have components other than those shown in FIG.

[0148] The electronic device 30 includes a control unit 61, a power control unit 62, a functional circuit 63, a sensor 64, and a battery. The power supply device 20 includes a connection member 10, a battery 30, a power receiving portion 66, and a bearing portion 34. It has Teri 22 etc.

[0149] The power supply device 20 and the connection member 10 can be described above and will not be described here.

[0150] The control unit 61 is, for example, a central processing unit (CPU). The control unit 61 includes a power supply control unit 62, a sensor 64, and a , and the functional circuit 63.

[0151] The power receiving unit 66 has a function of receiving power supplied from an external source and supplying it to the power supply control unit 62. do.

[0152] When charging, a charger capable of supplying power to the power receiving unit 66 can be used. At this time, the power receiving unit 66 may receive power in a wired manner using a USB connector, an AC adapter, or the like. Wireless power supply methods such as electric field coupling, electromagnetic induction, and electromagnetic resonance (electromagnetic resonance coupling) methods The power may be received by the above configuration.

[0153] Moreover, a power generating device may be provided in the electronic device 30 and used as one of the power receiving sections 66 . A solar cell can be typically used as the power generating device, and a part of the display unit 32 or The electronic device 30 can be disposed so as to overlap a part of the housing 31 (including the lug 33). A device that generates electricity by bending and straightening the power supply device 20. A device that generates electricity may be used as the power generation device.

[0154] The battery 65 functions as a main power source for the electronic device 30. The battery 65 is a power supply control unit 62 controls its charging and discharging.

[0155] The power supply control unit 62 has a function of controlling the charging and discharging of the battery 65 and the battery 22 . In addition, the power supply control unit 62 controls information on the remaining battery levels of the battery 65 and the battery 22, etc. It is preferable that the unit 61 has a function of transmitting the information to the communication section 62.

[0156] The sensor 64 detects the potential difference between the pair of bearings 34 and outputs the information to the control unit 61. For example, a comparator circuit or the like is used to obtain a digital signal corresponding to the potential difference between the bearings 34. A signal corresponding to the potential difference between the bearings 34 may be output to the control unit 61. In this case, the sensor 64 and the control unit 61 may output an analog signal indicating the temperature of the sensor 64 to the control unit 61. It is preferable to use an analog-to-digital conversion circuit between the input and output terminals of the control unit 61.

[0157] The sensor 64 detects whether the potential difference between the pair of bearings 34 is within a preset range. If the battery is disconnected, the battery may have a function of outputting a signal to the control unit 61. When the voltage exceeds the fully charged voltage specified in the rated voltage range of 22, or when the voltage in a discharged state When the voltage Vcc falls below 10 V, the controller 61 outputs a signal.

[0158] The sensor 64 is a sensor in which the connecting member 10 or a normal spring bar or the like is inserted into the pair of bearing portions 34. For example, a light receiving element and a light source may be combined. In this case, a sensor or a physical switch can be used. When it is determined that no battery is inserted, the electronic device 30 uses the battery 65 as a power source. There can be.

[0159] FIG. 9B shows an example of a component that can be applied to the functional circuit 63. Examples include display devices, storage devices, sound controllers, communication modules, and attitude detection modules. modules, external interfaces, camera modules, vibration modules, or various sensor modules In addition, all of these components are included in the functional circuit 63. It is not necessary to use the above components. Also, components other than these may be used as the functional circuit 63. The functional circuit 63 may include various components depending on the configuration, function, and purpose of the electronic device 30. The components can be applied in combination.

[0160] Each component that can be used in the functional circuit 63 is controlled via a bus line 69. Each component is connected to a power supply control unit 61 via a power supply line 68. Power is supplied from the control unit 62.

[0161] The above is a description of an example of the system configuration.

[0162] Each of the components of the system 50 will be described below.

[0163] [Control Unit] The control unit 61 interprets and executes commands from various programs using a processor. It performs various data processing and program control. Programs that can be executed by the processor are The program may be stored in a memory area of ​​the processor or in a storage device. Good too.

[0164] The control unit 61 includes a CPU and a DSP (Digital Signal Processor). cessor), GPU (Graphics Processing Unit), etc. These microprocessors may be used alone or in combination. The microprocessor is an FPGA (Field Programmable Gate Array ray) and FPAA (Field Programmable Analog Arra) y) by PLD (Programmable Logic Device) This may be realized as a configuration.

[0165] In addition, the control unit 61 and ICs of other components have an oxidized channel formation region. It is also possible to use transistors that use solid semiconductors and have extremely low off-state currents. Since the off-state current of the transistor is extremely low, the transistor can be used as a memory element. Used as a switch to hold the charge (data) that has flowed into a functioning capacitive element This characteristic is realized by the control unit 61. By using it as a register or cache memory, the control unit 61 can be operated only when necessary, and other In this case, the information of the immediately preceding process is saved in the memory element, so that the normally off-chip This enables the electronic device 30 to consume less power.

[0166] The control unit 61 may have a main memory. The main memory may be a RAM (Random Access Memory). volatile memory such as ROM (Read Only Memory) and The configuration may include a non-volatile memory such as a .times. ...

[0167] The RAM provided in the main memory is, for example, a dynamic random access memory (DRAM). A virtual dom access memory (DMA) is used as the working space of the control unit 61. The memory space is allocated and used by the operating system stored in the storage device. programs, application programs, program modules, program data, etc. These data, programs, and processes loaded into RAM are then The program module is directly accessed and operated by the control unit 61.

[0168] On the other hand, ROM has a BIOS (Basic Input / Output) that does not require rewriting. It can store the ROM, such as the ROM (read-only memory) and firmware. Mask ROM and OTPROM (One Time Programmable Read Only) d Only Memory), EPROM (Erasable Programmable EPROM can be used. UV-EPROM (Ultra-Voltage Erasable Read-Only) is a type of EEPROM that allows data to be erased by exposure to ultraviolet light. iolet Erasable Programmable Read Only Me mory), EEPROM (Electrically Erasable Program ammunition read only memory, and flash memory. can be.

[0169] [Power supply control section] The power supply control unit 62 may include, for example, a battery management unit (BMU). The BMU collects data on the cell voltage and temperature of the battery, monitors overcharging and over-discharging, and Control of the lantern, management of battery deterioration, and battery remaining capacity (State of Charge:SO C) and performs fault detection control.

[0170] The power supply control unit 62 supplies power to each component via a bus line 69 and other power supply lines. The power supply control unit 62 controls the transmission of power to the power supply unit 61. The power supply may be configured to include a converter, an inverter, a protection circuit, and the like.

[0171] In addition, it is preferable that the power supply control unit 62 has a power consumption reduction function. As a power saving function, when it is detected that there is no input to the electronic device 30 for a certain period of time, the control unit 61 The clock frequency is lowered or the input of the clock is stopped, and the operation of the control unit 61 itself is stopped. It also stops the operation of auxiliary memory, and reduces the power supply to each component. These functions include reducing the power consumption by reducing the power consumption. It can be executed by control unit 62 alone or in conjunction with control unit 61 .

[0172] [Battery] The battery 65 and the battery 22 each include, for example, one or more primary batteries or secondary batteries. Examples of secondary batteries that can be used for the battery 65 include lithium ion secondary batteries and The battery 65 may be a lithium ion polymer secondary battery. In addition, a protection circuit for preventing overcharging and over-discharging may be provided.

[0173] When using the device indoors, the power of the battery 65 or the battery 22 is not used. Alternatively, an external power source such as an alternating current (AC) power source may be used. Alternatively, power may be supplied wirelessly. Electric power may also be used.

[0174] The battery 65 and the battery 22 may be a coin-type (button-type) exterior body, a cylindrical exterior body, or the like. In particular, a battery having a wearable external body or a prismatic external body can be used. In the equipment, a lightweight and thin coin-type battery is used as the battery 65. It is preferable that

[0175] In addition, it is preferable to use flexible batteries for the battery 65 and the battery 22. In particular, it is preferable to use such a battery for the battery 22.

[0176] As a secondary battery that can be applied to a flexible battery, for example, a lithium ion secondary battery and lithium ion polymer secondary batteries. To achieve this, it is advisable to use a laminated bag for the battery's outer container.

[0177] The film used for the laminated bag is a metal film (aluminum, stainless steel, nickel steel, plastic film made of organic materials, organic materials (organic resins, fibers, etc.) Hybrid material films containing inorganic materials (such as ceramics), carbon-containing inorganic films (carbon film, graphite film, etc.) or A laminated film made of multiple materials is used. Metal films are easy to emboss and have good adhesion. By forming concave or convex portions through embossing, the surface area of ​​the film exposed to the outside air increases. Therefore, it has excellent heat dissipation effect.

[0178] In particular, for laminated bags, metal film with concave and convex parts formed by embossing is used. When a laminated bag having the above structure is used, the strain caused by the stress applied to the laminated bag is reduced. As a result, the laminated bag does not break when the secondary battery is bent. This is preferable because it can effectively reduce problems such as the deterioration of the image.

[0179] [Functional Circuit] Examples of components that can be used in the functional circuit 63 are described below.

[0180] <Display device> The display devices include segment type display devices, passive matrix type display devices, and Alternatively, an active matrix type display device or the like can be used. It is preferable to use a touch panel having a touch sensor function.

[0181] The display device includes a display panel and a display controller. In the case where a touch panel is applied, the display device includes a touch panel and a display controller. The in-cell type may have a touch sensor controller. In cases where a touch panel is used, the display controller controls the touch panel. In some cases, the touch panel may also function as a controller. explain.

[0182] The touch panel is connected to a display controller and a touch sensor controller. The display controller and the touch sensor controller are connected to bus line 6. 9 and is connected to the control unit 61.

[0183] The display controller receives drawing data input from the control unit 61 via a bus line 69. In response to the instruction, the touch panel is controlled to display a predetermined image on the display surface of the touch panel.

[0184] The touch sensor controller receives the signal from the control unit 61 via the bus line 69. It controls the touch sensor of the touch panel according to the request and also transmits the signal received by the touch sensor. The signal received by the touch sensor is output to the control unit 61 via the bus line 69. The touch sensor controller may have a function to calculate touch position information from the signal. Alternatively, the control unit 61 may have it.

[0185] The touch panel displays images based on the signals supplied by the display controller. The touch panel can display the signal supplied from the touch sensor controller. Based on this, it detects the approach or contact of a sensing object such as a finger or stylus. , and the position information can be output to the touch sensor controller.

[0186] In addition, the touch panel and the touch sensor controller are designed to have a high distance from the detection surface to the object to be detected. It is preferable that the device has a function of acquiring the distance in the vertical direction. It is preferable that the sensor has a function of acquiring the magnitude of pressure applied when the object to be detected is in contact with the detection surface. It is preferable that the touch panel has a function for acquiring the size of the surface being touched.

[0187] The touch panel is a device in which a module equipped with a touch sensor is placed on the display surface of a display panel. In this case, the module having the touch sensor may be configured as follows: It is preferable that at least a part of the display panel is flexible and can be curved along the display panel. The module having the touch sensor and the display panel can be bonded together with an adhesive or the like. A polarizing plate or a buffer material (separator) may be provided between them. The thickness of the module is preferably equal to or less than the thickness of the display panel.

[0188] The touch panel may be a touch panel in which a display panel and a touch sensor are integrated. For example, it is preferable to use an on-cell type touch panel or an in-cell type touch panel. On-cell or in-cell touch panels can be made thin and lightweight. Furthermore, on-cell or in-cell touch panels can reduce the number of parts. , costs can be reduced.

[0189] The touch panel has a touch sensor that detects when a detected object such as a finger approaches or touches the touch sensor. Various sensors that detect the presence of a substance can be applied. For example, a capacitive type, a resistive type, a surface type, Sensors that use elastic wave, infrared, optical, etc. can be used. In addition, optical sensors using photoelectric conversion elements and pressure-sensitive sensors using pressure-sensitive elements are also used. Also, two or more types of sensors of different types may be provided, or sensors of the same type may be provided. The second embodiment may have two or more suffixes.

[0190] The capacitive touch panel includes a surface capacitive touch panel and a projected capacitive touch panel. The capacitance method includes the self-capacitance method and the mutual capacitance method. This is preferable because it facilitates simultaneous multi-point detection.

[0191] In addition, a flexible touch panel, a display panel, a touch sensor, or the like may be used. In this case, for example, a display element, a circuit for driving the display element, or a circuit for configuring a touch sensor, This can be achieved by using a flexible substrate as the supporting substrate.

[0192] A typical example of a material for the flexible substrate is an organic resin. In addition, glass, metal, alloy, semiconductor, etc. that is thin enough to have flexibility can be used. Or a composite material containing two or more of organic resin, glass, metal, alloy, semiconductor, etc. Laminated materials may be used.

[0193] The display element of the touch panel is, for example, an OLED (Organic Light Emitting Diode) Emitting Diode), LED(Light Emitting Diode) ), QLED (Quantum-dot Light Emitting Diode) Alternatively, a light-emitting element of a transmissive type, a reflective type, or a semi-transmissive type may be used. A transparent liquid crystal element may be used. ro Mechanical Systems) elements and display elements such as electron emission elements As a display element using MEMS, a shutter-type MEMS display Examples of electron emission elements include CCD display elements and MEMS display elements using optical interference. Alternatively, a carbon nanotube may be used. Also, electronic paper may be used. These include the microcapsule method, electrophoresis method, electrowetting method, and electronic powder method. An element that uses a fluidic (registered trademark) method or the like can be used.

[0194] <Storage device> Examples of storage devices include flash memory and MRAM (Magnetoresistive Random Access Memory). tive Random Access Memory), PRAM (Phase ch ange RAM), ReRAM (Resistance RAM), FeRAM (Fe A storage device that uses a non-volatile memory element such as a random access memory (RAM), or dynamic RAM such as DRAM (Dynamic RAM) or SRAM (Static RAM). A storage device using a nonvolatile storage element may be used. Hard Disk Drive (HDD) and Solid State Drive (Sol A recording media drive such as a solid-state drive (SSD) may also be used.

[0195] In addition, a removable HDD or SSD can be connected via an external interface. Any storage device or recording media such as flash memory, Blu-ray discs, DVDs, etc. A media drive can also be used as the storage device. A storage device that is external to the electronic device 30 may be used instead of being stored in the electronic device 30. In that case, The data is exchanged wirelessly via a communication module or through a wireless interface. The configuration may be such that

[0196] Sound Controller The sound controller has a function of controlling the audio input unit and the audio output unit. The input unit includes, for example, a microphone and an audio input connector. The audio output unit includes, for example, The audio input section and the audio output section each have a speaker and an audio output connector. The audio input section is connected to the controller and is connected to the control section 61 via a bus line 69. The input voice data is converted into a digital signal in the sound controller, and The sound controller is a control unit 61. In response to a command from the control unit 61, an analog audio signal that is audible to the user is generated and output to the audio output unit. The audio output section has an audio output connector that can be used with earphones, headphones, It is possible to connect a sound output device such as a headset, and output the sound generated by the sound controller to the device. The voice is output.

[0197] <Communication Module> The communication module can perform communication via an antenna. For example, In response to the command, the control signal for connecting the electronic device 30 to the computer network is controlled. This allows the World Wide Web to communicate with the Internet. ide The foundation of the Web (WWW), which includes the Internet, intranets, and extranets PAN (Personal Area Network), LAN (Local Area Network) Area Network), CAN(Campus Area Network), M AN (Metropolitan Area Network), WAN (Wide A rea Network), GAN (Global Area Network), etc. The electronic device 30 can be connected to a computer network for communication. When multiple communication methods are used, multiple antennas are provided according to the communication methods. It may be possible.

[0198] The communication module is provided with, for example, a high-frequency circuit (RF circuit) for transmitting and receiving RF signals. High-frequency circuits transmit electromagnetic and electrical signals in the frequency bands specified by the laws of each country. A circuit for converting between them and communicating wirelessly with other communication devices using the electromagnetic signals. The practical frequency band generally used is several tens of kHz to several tens of GHz. The high-frequency circuit connected to the antenna has a high-frequency circuit section that supports multiple frequency bands. The high-frequency circuit section consists of an amplifier, mixer, filter, DSP, RF transceiver, When wireless communication is performed, a communication protocol or a communication technology may be used. LTE (Long Term Evolution), GSM (Global System for Mobile Communication (registered trademark), ED GE(Enhanced Data Rates for GSM Evolution ), CDMA2000 (Code Division Multiple Access 2000), W-CDMA (Wideband Code Division Mul (tiple Access: registered trademark) or Wi-Fi (registered trademark) Communication by IEEE such as Bluetooth (registered trademark) and ZigBee (registered trademark) Standardized specifications can be used.

[0199] The communication module may also have a function for connecting the electronic device 30 to a telephone line. When making a call through a telephone line, the communication module responds to a command from the control unit 61. In response to the request, the electronic device 30 is controlled to receive a connection signal for connecting the electronic device 30 to a telephone line, and the connection signal is transmitted to the telephone line. Call to.

[0200] The communication module receives broadcast radio waves via an antenna and outputs them to a touch panel, etc. The television receiver may include a tuner for generating a video signal. For example, the tuner may include a demodulation circuit and The configuration includes an AD conversion circuit (analog-digital conversion circuit) and a decoder circuit. The demodulation circuit has the function of demodulating the signal input from the antenna. The D conversion circuit has the function of converting the demodulated analog signal into a digital signal. The decoder circuit decodes the video data contained in the digital signal and outputs it to the display controller. It has the function of generating a signal to be transmitted to the controller.

[0201] The decoder may also have a splitting circuit and a plurality of processors. It has the function of dividing the input video data spatially and temporally and outputting it to each processor. The processors decode the input video data and output it to the display controller. In this way, the decoder uses multiple processors to generate a signal that is sent to the By applying a configuration that processes data in parallel, it is possible to decode video data with extremely high information content. This is especially true when displaying images with resolutions exceeding full HD. The decoder circuit that decodes the compressed data is a processor with extremely high processing speed. For example, the decoder circuit preferably has four or more The configuration includes multiple processors capable of parallel processing of 8 or more, and more preferably 16 or more. It is also preferable that the decoder separates the video signal contained in the input signal from the other signals. The signal may include a circuit for separating the above signals (text information, program information, authentication information, etc.).

[0202] The broadcasting waves that can be received by an antenna are terrestrial waves or waves transmitted by satellite. In addition, the broadcasting waves that can be received by antennas include analog broadcasting, digital broadcasting, etc. There are also broadcasts that are video and audio, or audio only. For example, UH F band (approximately 300MHz to 3GHz) or VHF band (30MHz to 300MHz) It is possible to receive broadcast waves transmitted in a specific frequency band. By using multiple data received in a frequency band, the transfer rate can be increased, This allows for more information to be obtained. This allows for a resolution that exceeds full HD. Images captured by the camera can be displayed on touch panels, etc. For example, 4K-2K, 8K-4K It can display images with resolutions of 16K-8K or higher.

[0203] The tuner is also transmitted via data transmission technology over a computer network. The signal to be sent to the display controller is generated using the broadcast data. In this case, if the received signal is a digital signal, the tuner includes a demodulation circuit and The input / output circuit may not have an AD conversion circuit.

[0204] Attitude Detection Module The attitude detection module has a function of detecting the inclination, attitude, etc. of the electronic device 30. For example, The attitude detection module includes an acceleration sensor, an angular velocity sensor, a vibration sensor, a pressure sensor, A gyro sensor or the like can be used. In addition, a combination of multiple sensors can be used. This is also fine.

[0205] External Interface The external interface may be, for example, one or more buttons or switches provided on the housing 31. switches (also called chassis switches), and external ports to which other input components can be connected. The external interface is connected to the control unit 61 via a bus line 69. The case switches include a switch associated with the power on / off function, and a switch for adjusting the volume. buttons for taking pictures, and a button for taking pictures with the camera.

[0206] The external interface has external ports, such as a computer or a printer. The configuration can be such that the device can be connected to an external device such as a computer or a video player via a cable. A typical example is the USB (Universal Serial Bus) connector. In addition, as an external port, a terminal for connecting to a LAN (Local Area Network) is provided. It may also have a terminal for receiving digital broadcasts, a terminal for connecting an AC adapter, etc. In addition to wired communication, a transmitter and receiver for optical communication using infrared light, visible light, ultraviolet light, etc. may be provided. It may also be composed of.

[0207] <Camera module> The camera module has the function of taking still images and videos. For example, the switch 61 is connected to the control unit 61 via a bus line 69. The camera will take still images or videos when you press the camera or when you touch the touch panel. The camera module may also have a light source for taking pictures. Lamps such as xenon lamps, light-emitting elements such as LEDs and organic EL devices, etc. can be used. Alternatively, the light emitted by the touch panel may be used as a light source for photography. In that case, Light of various colors, not just white, may be used as the light source for photography.

[0208] <Vibration module> The vibration module includes a vibration element that vibrates the electronic device 30 and a vibration controller that controls the vibration element. The vibration element includes a vibration motor (eccentric motor), a resonance actuator, and a Elements that can convert electric or magnetic signals into vibrations, such as magnetostrictive elements, piezoelectric elements, etc. Children can be used.

[0209] The vibration module controls the frequency, amplitude, and vibration of the vibration element in response to an instruction from the control unit 61. By controlling the vibration period, etc., the electronic device 30 can be vibrated in various vibration patterns. For example, a vibration that is linked to the operation of a switch on the housing, or the like, Vibration linked to startup, vibration linked to video or audio played in video playback applications vibrations linked to incoming e-mails, vibrations linked to input actions on the touch panel, etc. Various vibration patterns based on the actions performed in various applications can be controlled by the vibration The signal can be generated by a motion module.

[0210] <Sensor module> The sensor module includes a sensor unit and a sensor controller. The controller supplies power to the sensor unit from a battery module, etc. The controller receives input from the sensor unit, converts it into a control signal, and transmits it to the bus line 69. The sensor controller outputs the signal to the control unit 61 via the The sensor control unit may also perform calibration processing. The roller may be configured to include a plurality of controllers for controlling the sensor units.

[0211] The sensor module can detect, for example, force, displacement, position, velocity, acceleration, angular velocity, rotation speed, distance, Light, liquid, magnetism, temperature, chemicals, sound, time, hardness, electric field, current, voltage, power, radiation, Equipped with various sensors that can measure flow rate, humidity, gradient, vibration, odor, or infrared rays. The configuration may be such that:

[0212] In addition, a sensor for acquiring biological information is applied as a sensor included in the sensor module. Examples of biological information include body temperature, blood pressure, pulse rate, sweat rate, lung capacity, and blood sugar level. , blood alcohol concentration, SpO2 (blood oxygen saturation), etc. By acquiring the information, the electronic device 30 can be used as a health management system. .

[0213] The sensor module may include sensors for detecting fingerprints, veins, irises, voiceprints, etc. Sensors that obtain biological information can also be applied. By using such sensors, The biometric authentication function can be realized, and the electronic device 30 can be prevented from being used illegally by others, and the safety can be improved. can be increased.

[0214] The above is a description of examples of components that can be used in the functional circuit 63.

[0215] [Example of how the system works] Next, the operation of the system 50 shown in FIG. 9(A) will be described.

[0216] [Operation method example 1] FIG. 10 is a flow chart showing the operation of the system 50. This is an example of a case where the power of either the battery 65 or the power of the power supply 66 is used. The following operations are mainly executed by the control unit 61.

[0217] First, the operation starts in step S00. For example, when the electronic device 30 is turned on, Or, the operation may be initiated when the user enables the system 50. Alternatively, the bearing portion 34 may be fitted with a connecting member 10 or a conventional spring bar or other member. The operation may be started when an operation such as inserting or removing the device is performed.

[0218] Next, in step S01, information on the electric potential of the pair of bearings 34 (hereinafter also referred to as electric potential information) is More specifically, the control unit 61 acquires information on the electric potential between the pair of bearings 34. The sensor 64 controls the control unit 61 to obtain the potential. Output information.

[0219] Next, in step S02, the pair of bearings 34 is in a short-circuited state or an insulated state. If it is determined that the pair of bearings 34 is in a short-circuited state or an insulated state, In this case, the process proceeds to step S05, and the pair of bearings 34 is in a short-circuited state or an insulated state. If it is determined that there is no such file, the process proceeds to step S03.

[0220] In step S02, it is determined whether the power supply device 20 is connected to the electronic device 30. corresponds to a step.

[0221] Specifically, when the potential difference between the pair of bearings 34 is 0 V or close to 0 V, It is determined that the pair of bearings 34 is in a shorted state or in an insulated state. The power supply unit 20 having at least the battery 22 is not connected to the power supply unit 34. Cut.

[0222] On the other hand, when the potential difference between the pair of bearings 34 is, for example, 0.5 V or more, or 1 V or more, If there is a short circuit or insulation, it is determined that the pair of bearings It can be determined that the power supply device 20 is connected to the unit 34.

[0223] Next, in step S03, the potential difference between the pair of bearing portions 34 is set to a value within a predetermined potential difference range. If it is within the range of the predetermined potential difference, the process proceeds to step S04. On the other hand, if the potential difference is not within the predetermined range, the process proceeds to step S05.

[0224] Step S03 corresponds to a step of checking the remaining charge of the battery 22 of the power supply device 20. Here, the remaining capacity of the battery 22 is determined based on the output voltage within a range defined by the rated voltage range, etc. For example, the voltage at which the battery is fully charged can be measured within the rated voltage range. The voltage in the discharged state can be set to 100%, the voltage in the discharged state can be set to 0%, etc. In the case of 03, the potential difference between the pair of bearing parts 34 is 0% or more and less than 5% in the range of the rated voltage. When the potential difference is 0% or more and less than 3%, the remaining charge of the battery 22 is sufficient. It can be determined that it is not.

[0225] In addition, step S03 is a step of determining whether the output voltage of the battery 22 exceeds the assumed voltage range. This step corresponds to excluding the output voltage of the battery 22 from the expected voltage. If the load is large, each component in the electronic device 30 may fail. For example, The potential difference between the pair of bearings 34 is set to a maximum value that can be input to the electronic device 30. If the voltage value is exceeded, it is determined that the potential difference is not within the predetermined range.

[0226] In this embodiment, the remaining charge of the battery 22 is measured using the potential difference between the pair of bearings 34. However, the present invention is not limited to this, and may be measured, for example, in terms of the amount of current or the amount of power.

[0227] Next, in step S04, it is determined whether or not to use the power supplied from the bearing portion 34. If it is to be used, the process proceeds to step S06. If it is not to be used, the process proceeds to step S07. Transition to S05.

[0228] In step S04, the operation of the control unit 61 is regulated based on preset setting information. The setting information may be preset at the time of shipment. The information may be such that the user can change the settings. %, power supplied from the bearing unit 34 is used. The setting information may be the setting information.

[0229] In step S05, the electronic device 30 is powered by the battery 65. Specifically, the power supplied from the battery 65 is used to operate the device 30. The control unit 61 controls the power supply control unit 62 so as to output the signal to the power supply control unit 62. Then, the process proceeds to step S07. Migrate.

[0230] In step S06, the electronic device 30 is driven by the power supplied from the pair of bearings 34. Specifically, the battery 22 of the power supply device 20 supplies power to the connection member 10 and the The control unit 61 outputs the electric power input via the bearing unit 34 to each component. controls the power supply control unit 62. After that, the process proceeds to step S07.

[0231] In step S07, the operation ends.

[0232] This concludes the explanation of the flow shown in FIG.

[0233] By using the method exemplified here, the battery 22 and the connecting member 34 are fixed to the pair of bearing portions 34. 10 with or without a power supply unit 20 connected It is easy to determine whether the device is connected. In this case, the electronic device 30 can be driven by using a battery 65 that the electronic device 30 itself has as a power source. can.

[0234] [Operation method example 2] FIG. 11 is a flow chart showing the operation of the system 50. 11 is a flow chart showing the operation of charging the battery 65. This is an example of a case where charging is performed first. The following operations are mainly executed by the control unit 61.

[0235] First, the operation starts in step S10.

[0236] Next, in step S11, it is determined whether or not the device is in a power receiving state. Then, it is determined whether the power receiving unit 66 is receiving power. If the power receiving unit 66 is receiving power, The process proceeds to step S12, and if the mobile station is not in a power receiving state, the process proceeds to step S18.

[0237] In step S12, potential information is acquired.

[0238] In step S13, whether the pair of bearings 34 is in a short-circuited state or an insulated state If it is determined that the pair of bearings 34 are in a short-circuited state or an insulated state, In this case, the process proceeds to step S17. If the pair of bearings 34 is in a short-circuited state or in an insulated state, If it is determined that there is no such file, the process proceeds to step S14.

[0239] In step S14, whether the potential difference between the pair of bearing portions 34 is smaller than a predetermined potential difference or not. If the potential difference is smaller than the predetermined potential difference, the process proceeds to step S15. If the potential difference is equal to or greater than the predetermined potential difference, the process proceeds to step S17.

[0240] In step S14, it is checked whether the battery 22 of the power supply device 20 is in a fully charged state. For example, the predetermined potential difference in step S14 is Battery 22 is fully charged (output voltage is 100% within the rated voltage range). It can be a corresponding potential difference.

[0241] In step S15, power is output to the pair of bearings 34, so that the battery 2 Specifically, the power supplied from the power receiving unit 66 is output to the pair of bearing units 34. The control unit 61 controls the power supply control unit 62 so that the pair of axes A potential difference for charging the battery 22 is applied to the receiving portion 34. The battery 22 can be charged via the device 10. Then, the process proceeds to step S16. do.

[0242] Step S15 continues until the battery 22 is fully charged or close to that state. Specifically, the potential difference between the pair of bearings 34 corresponds to the fully charged state of the battery 22. Charging is completed when the potential difference is equal to or 95% or more of the corresponding potential difference. The potential difference is below 100% or below 95% battery charge. If the potential difference is equal to or greater than 0.5, charging continues.

[0243] In step S16, it is determined whether or not charging of the battery 65 is complete. If the charging of the battery 65 is completed, the process proceeds to step S18. If charging of the battery 5 is not completed, the process proceeds to step S17.

[0244] Specifically, when the charge state of the battery 65 is fully charged or 95% or more, On the other hand, if the battery 65 is less than 100% charged, If the battery level is below 95% or 95%, it is determined that charging is not complete.

[0245] In step S17, the battery 65 is powered up by outputting power to the battery 65. Specifically, the power supplied from the power receiving unit 66 is output to the battery 65. Then, the control unit 61 controls the power supply control unit 62. After that, the process proceeds to step S18.

[0246] Step S17 is the same as step S15 in that it is determined whether the battery 65 is fully charged or not. This continues until the neighboring state is reached.

[0247] In step S18, the operation ends. At this point, the battery 22 and the battery 65 This means that both devices have completed charging.

[0248] The above is a description of the second example of the operation method.

[0249] [Operation method example 3] FIG. 12 is a flow chart showing the operation of the system 50. 12 is a flow chart showing the operation of charging the battery 65. This is an example of a case where charging is performed first. The following operations are mainly executed by the control unit 61.

[0250] First, the operation starts in step S20.

[0251] Next, in step S21, it is determined whether or not the device is in a power receiving state. If so, the process proceeds to step S22, and if not, the process proceeds to step S27. do.

[0252] In step S22, the battery 65 is powered up by outputting power to the battery 65. Specifically, the power supplied from the power receiving unit 66 is output to the battery 65. Then, the control unit 61 controls the power supply control unit 62. After the charging is completed, the process proceeds to step S23. do.

[0253] In step S23, the potential information is acquired.

[0254] In step S24, whether the pair of bearings 34 is in a short-circuited state or an insulated state If it is determined that the pair of bearings 34 are in a short-circuited state or an insulated state, In this case, the process proceeds to step S27. If the pair of bearings 34 is in a short-circuited state or in an insulated state, If it is determined that there is no such file, the process proceeds to step S25.

[0255] In step S25, whether the potential difference between the pair of bearing portions 34 is smaller than a predetermined potential difference or not. If the potential difference is smaller than the predetermined potential difference, the process proceeds to step S26. If the potential difference is equal to or greater than the predetermined potential difference, the process proceeds to step S27.

[0256] The above can be applied to the criteria in step S25.

[0257] In step S26, power is output to the pair of bearings 34, so that the battery 2 After charging is completed, the process proceeds to step S27.

[0258] In step S27, the operation ends. At this point, the battery 22 and the battery 65 This means that both devices have completed charging.

[0259] This concludes the explanation of operation method example 3.

[0260] Here, two methods for charging the battery 22 and the battery 65 have been described. However, you can choose either method depending on the battery you want to charge first. The method to be used may be preset as setting information, or the user may select an appropriate method. The settings may be changed as needed.

[0261] In addition, one aspect of the present invention is a program stored in a storage unit of the electronic device 30, The control unit 61 may read and execute the program. Another aspect of the present invention is a program for causing the control unit 61 to execute the operations according to the above-mentioned flow. do.

[0262] The above describes an example of how the system operates.

[0263] [Example of application] In the above, a wristwatch is used as an example of an electronic device to which the connection member, power supply device, or the like according to one embodiment of the present invention can be applied. The present invention is not limited to a mobile information terminal, but may be applied to various electronic devices. An example of an electronic device different from the above will be described below.

[0264] The power supply device according to one embodiment of the present invention has features such as a belt-like shape and flexibility. For example, it can be used for attaching devices to the arms, legs, waist, etc. It can be used for harnesses, straps for hanging the device on the shoulder or neck, and The present invention can also be applied to the parts that function as handles for devices. It can be used as an accessory to prevent slipping, such as a strap to attach the can be done.

[0265] Examples of devices to which the power supply device according to one embodiment of the present invention can be applied include watch-type electronic devices and glasses. Wearable devices such as head mounted displays (HMDs) It can also be suitably applied to biometric devices such as blood pressure monitors, electrocardiograms, and pedometers. In addition, mobile phones, smartphones, tablet devices, and other mobile information terminals, digital Telecommunications equipment such as digital cameras, music players, video players, mobile routers, wireless Examples of such electronic devices include earphones, wireless headphones, and speakers.

[0266] The power supply unit can be used not only for electronic devices, but also for bags and clothing (including hats). The power supply device according to one embodiment of the present invention is thin, lightweight, and flexible. Therefore, even when attached to a bag or clothing, the weight and fit are not compromised.

[0267] For example, by applying the power supply device of one embodiment of the present invention to a handle or strap of a bag, can function as a charger for charging electronic devices stored in it. The bag itself has various functions that use electricity, such as communication functions and functions to emit voice or vibration. Noh can be added.

[0268] In addition, by applying a power supply unit to clothing, biometric information can be acquired by electrodes and sensors installed in the clothing. Adding a function to obtain information about the person wearing the clothing, making a part of the clothing emit light, or attaching an image to a part of the clothing. It will be possible to change the design by displaying it, stretch the clothing, etc.

[0269] In addition, the power supply device according to one embodiment of the present invention is easy to attach and detach, so that it can be easily removed when washing, etc. This can be removed to prevent dangers such as shorting out the battery.

[0270] 13(A) and (B) show the external appearance of the head mounted display 300.

[0271] The head mounted display 300 includes a housing 301, a display unit 302, and an operation button 303. The housing 301 also has a strap-shaped power supply unit 20 attached thereto. The device 20 has a battery 22 .

[0272] The head mounted display 300 includes a battery provided in a housing 301 and a power supply. A battery 22 provided in the device 20 can be used as a power source.

[0273] The head mounted display 300 also includes a power generating device such as a solar cell in the housing 301. In addition, the head mounted display 300 may be equipped with a power generating device. A device that generates electricity by bending or stretching the power supply device 20 is called a power generation device. It may also be used as.

[0274] The housing 301 is equipped with a wireless receiver or a connector, and receives image information such as image data. The display unit 302 can display the information. In addition, an acceleration sensor or the like provided in the housing 301 can The head movement of the user is detected by the sensor, and the image displayed on the display unit 302 is adjusted to match the head movement. It is preferable that the ion exchange resin has a function of changing the ion exchange ratio.

[0275] In addition, a camera installed in the housing 301 captures the movements of the user's eyeballs and eyelids, and the information is stored. By calculating the coordinates of the user's viewpoint based on the above, the user's viewpoint is used as an input means. In addition, the housing 301 may be provided with a plurality of electrodes at positions where the user can touch the housing 301. The housing 301 detects the current flowing through the electrodes in accordance with the movement of the user's eyeball. The sensor may have a function of detecting a current flowing through the electrode. By doing so, the housing 301 may have a function of monitoring the pulse of the user. The sensor may have various sensors such as a temperature sensor, a pressure sensor, and an acceleration sensor. The display unit 302 may have a function of displaying the biological information of the user.

[0276] The operation button 303 has functions such as a power button. It may have a tan.

[0277] Also, as shown in FIG. 13C, a lens is provided between the display unit 302 and the position of the user's eyes. The lens 305 allows the user to magnify the display unit 302. This increases the sense of realism. At this time, the diopter adjustment is performed as shown in FIG. The camera may have a dial 306 for varying the position of the lens for

[0278] The display unit 302 displays two images, one for the right eye and one for the left eye, in two left and right areas. This allows the display of stereoscopic images using binocular parallax. This can be done.

[0279] Alternatively, a single image that can be viewed by both eyes may be displayed across the entire area of ​​the display unit 302. This makes it possible to display panoramic images across both ends of the field of view, The realization grows.

[0280] In addition, as shown in FIG. 13C, when a lens 305 is provided, the display unit 302 has two The images may be displayed side by side, or one image may be displayed on the display unit 302 and the lens 305 may be used to The same image may be viewed with both eyes via the same optical system.

[0281] FIG. 13D shows an example in which a curved display is applied to the display unit 302. This configuration provides a better viewing experience than when using a display with a flat display surface. This makes it possible to display more realistic images.

[0282] FIG. 13E shows a display unit 302 including a right-eye display and a left-eye display. 1 shows an example having two displays.

[0283] By having two display units 302, the user can see one display unit 302 per eye. This allows high resolution even when performing 3D display using parallax. The display unit 302 can display an image of 350 degrees. This allows the distance from the user's eyes to the display surface of the display unit 302 to be uniform. Since the image is fixed, the user can see a more natural image. In situations where the light being used is highly directional and the brightness and chromaticity of the light change depending on the viewing angle, Even in this case, the user's eyes are positioned in the normal direction of the display surface of the display unit 302, so Since this effect can be ignored, a more realistic image can be displayed.

[0284] An example of a portable information terminal is shown in FIG. 14(A). The portable information terminal 310 shown in FIG. , a housing 311, a display unit 312, an operation button 313, an external connection port 314, a speaker 31 5, a microphone 316, a camera 317, etc. The housing 311 also includes a belt-shaped power supply device 2 0 is attached to the power supply device 20. The power supply device 20 has a battery 22.

[0285] The portable information terminal 310 is powered by a battery provided in the housing 311 and a power supply device 20. The battery 22 can be used as a power source.

[0286] The portable information terminal 310 may also include a power generating device such as a solar cell in the housing 311. In addition, when the portable information terminal 310 is bent, the power supply device 20 generates electricity by shaking the portable information terminal 310. A device that generates electricity by an action such as stretching may be used as the power generation device.

[0287] The mobile information terminal 310 has a touch sensor on the display unit 312. Any operation such as inputting characters can be performed by touching the display unit 312 with a finger or a stylus. This can be done.

[0288] In addition, the operation button 313 is operated to turn the power on and off, and to display information on the display unit 312. You can change the type of image displayed. For example, from the email composition screen, you can change the type of image displayed to the main You can switch to the new screen.

[0289] In addition, a detection device such as a gyro sensor or an acceleration sensor is installed inside the mobile information terminal 310. By providing the above, the orientation of the mobile information terminal 310 (portrait or landscape) can be determined and the image of the display unit 312 can be displayed. You can set the screen display orientation to automatically switch. You can also set the screen display orientation to The switching can be done by touching the display unit 312, operating the operation button 313, or using the microphone 316. This can also be done by voice input or the like.

[0290] The mobile information terminal 310 is, for example, one selected from a telephone, a notebook, an information viewing device, etc. Or it has multiple functions. Specifically, it can be used as a smartphone. The portable information terminal 310 can be used for, for example, mobile phone calls, e-mail, text browsing and creation, music playback, video It can run various applications such as image playback, Internet communication, and games. Cut.

[0291] FIG. 14B shows an example of a camera. The camera 320 includes a housing 321, a display unit 322, The camera 320 has an operation button 323, a shutter button 324, etc. The housing 321 is also provided with a belt-shaped power supply unit 20. The power supply device 20 includes a battery 22.

[0292] The camera 320 is powered by a battery provided in the housing 321 and a battery provided in the power supply device 20. A battery 22 can be used as the power source.

[0293] The camera 320 may also include a power generating device such as a solar cell in the housing 321. Do not bend or straighten the power supply device 20. Any device that generates electricity through any action may be used as the electricity generating device.

[0294] Here, the camera 320 is a camera in which the lens 326 can be removed from the housing 321 and replaced. However, the lens 326 and the housing may be integrated together.

[0295] The camera 320 captures still or moving images by pressing the shutter button 324. In addition, the display unit 322 has a function as a touch panel, and the display unit 3 It is also possible to capture an image by touching 22.

[0296] The camera 320 can be equipped with a strobe device, viewfinder, etc. Alternatively, these may be incorporated into the housing 321.

[0297] The above is a description of the application example.

[0298] This embodiment may be implemented in appropriate combination with other embodiment modes described in this specification. This can be done.

[0299] (Embodiment 2) The following describes a configuration example of a secondary battery that can be used for the battery 22 or the like according to one embodiment of the present invention. An example of the manufacturing method will be described with reference to the drawings. An example of a secondary battery that can be used will be described.

[0300] [Configuration example] FIG. 15 is a perspective view showing the appearance of the secondary battery 102. FIG. 16(A) shows A1- FIG. 16B is a cross-sectional view of the portion indicated by the dashed line A2 in FIG. 2 is a cross-sectional view of the portion indicated by the dashed dotted line in FIG.

[0301] The secondary battery 102 according to one embodiment of the present invention is a battery covered with a separator 503 and arranged in an exterior body 507. The battery has a positive electrode 511, a negative electrode 515, and an electrolyte solution 504. In addition, in FIG. A positive electrode having a positive electrode active material layer 502 on one side of a positive electrode current collector 501, and a positive electrode having positive electrode active material layers 502 on both sides 502, and a negative electrode having a negative electrode active material layer 506 on one side of a negative electrode current collector 505. The secondary battery shown in FIG. 1 has one negative electrode and one negative electrode having negative electrode active material layers 506 on both sides. The positive electrode 511 is electrically connected to a positive electrode lead 521, and the negative electrode 515 is electrically connected to a negative electrode lead The positive electrode lead 521 and the negative electrode lead 525 are electrically connected to the leads 525. Also called electrodes or lead terminals. A part of the positive electrode lead 521 and the negative electrode lead 525 The positive electrode lead 5 is disposed on the outside of the exterior body. The secondary battery 102 is charged and discharged through the positive electrode lead 5. 21 and negative lead 525.

[0302] Note that although the positive electrode 511 is covered with the separator 503 in FIG. For example, the positive electrode 511 is not covered with the separator 503. For example, instead of the positive electrode 511, the negative electrode 515 may be covered with the separator 503. Good too.

[0303] [Positive electrode] The positive electrode 511 is composed of a positive electrode current collector 501 and a positive electrode active material layer 5 formed on the positive electrode current collector 501. 16, one side of a sheet-shaped (or strip-shaped) positive electrode current collector 501 is A positive electrode 511 having a positive electrode active material layer 502 on one side, and a positive electrode 512 having a positive electrode active material layer 502 on both sides. However, one embodiment of the present invention is not limited to this example. It is also possible to use only a positive electrode 511 having a positive electrode active material layer 502 on one surface of a current collector 501. Alternatively, only the positive electrode 511 having the positive electrode active material layer 502 on both sides may be used. By using the positive electrode 511 having the layer 502, the capacity of the secondary battery 102 can be increased. The secondary battery 102 may also have three or more positive electrodes 511. By increasing the number of positive electrodes 511 that the secondary battery 102 has, the capacity of the secondary battery 102 can be increased.

[0304] The positive electrode current collector 501 is made of a metal such as stainless steel, gold, platinum, aluminum, or titanium, Materials such as these alloys that are highly conductive and do not dissolve at the potential of the positive electrode can be used. In addition, the heat resistance of silicon, titanium, neodymium, scandium, molybdenum, etc. has been improved. Aluminum alloys containing elements that react with silicon can be used. It may be formed of a metal element that forms a silicide. It reacts with silicon to form a silicide. The metal elements that are used are zirconium, titanium, hafnium, vanadium, niobium, and titanium. talc, chromium, molybdenum, tungsten, cobalt, nickel, etc. Positive electrode current collector 5 01: foil, plate (sheet), net, punched metal, expanded metal, etc. The positive electrode current collector 501 has a thickness of 5 μm or more and 30 μm or less. In addition, the surface of the positive electrode current collector 501 is preferably coated with graphite or the like. An undercoat layer may be provided.

[0305] The positive electrode active material layer 502 contains, in addition to the positive electrode active material, a binder ( The positive electrode active material layer 502 may contain a binder, a conductive assistant for increasing the conductivity of the positive electrode active material layer 502, and the like.

[0306] The positive electrode active material used for the positive electrode active material layer 502 may have an olivine type crystal structure, a layered rock salt type The positive electrode active material is a composite oxide having a crystalline structure of 0.1 to 1.0 μm or a spinel type crystalline structure. For example, LiFeO2, LiCoO2, LiNiO2, LiMn2O4, V2O5, Compounds such as Cr2O5 and MnO2 are used.

[0307] In particular, LiCoO2 has a large capacity and is more stable in air than LiNiO2. It is preferable because it has the advantages of being thermally stable compared to LiNiO2.

[0308] In addition, lithium-containing manganese-containing spinel crystal structures such as LiMn2O4 are also available. The material contains a small amount of lithium nickel oxide (LiNiO2 or LiNi 1-x M x O2(0 <x< 1) By mixing (M=Co, Al, etc.), the characteristics of the secondary battery using this can be improved. This is preferable.

[0309] Or, a composite material (general formula LiMPO4 (where M is Fe(II), Mn(II), Co( One or more of Ni(II) and Ni(II) can be used. Representative examples of the general formula LiMPO4 Examples include LiFePO4, LiNiPO4, LiCoPO4, LiMnPO4, and LiF e a Ni bPO4, LiFe a Co b PO4, LiFe a Mn b PO4, LiNi a Co b PO4, LiNi a Mn b PO4 (a + b is less than or equal to 1, 0 < a < 1, 0 < b < 1), Li Fe c Ni d Co e PO4, LiFe c Ni d Mn e PO4, LiNi c Co d Mn e P O4 (c + d + e is less than or equal to 1, 0 < c < 1, 0 < d < 1, 0 < e < 1), LiFe f Ni g Co h Mn i PO4 (f + g + h + i is less than or equal to 1, 0 < f < 1, 0 < g < 1, 0 < h < 1, 0 < i < 1) and other lithium compounds can be used as materials.

[0310] In particular, LiFePO4 satisfies well the requirements for a cathode active material, such as safety, stability, high capacity density, and the presence of lithium ions that can be extracted during initial oxidation (charging), and is thus preferable.

[0311] Or, composite materials such as the general formula Li (2-j) MSiO4 (M is one or more of Fe(II), Mn(II), Co (II), Ni(II), 0 ≤ j ≤ 2) can be used. As representative examples of the general formula Li (2-j) MSiO4, there are Li (2-j) FeSiO4, Li ( 2-j) NiSiO4, Li (2-j) CoSiO4, Li (2-j) MnSiO4, L i (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 is 1 or less, 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) N i m Co n Mn q SiO4 (m + n + q is 1 or less, 0 < m < 1, 0 < n < 1, 0 < q < 1 )、Li (2-j) Fe r Ni s Co t Mn u SiO4 (r + s + t + u is 1 or less, 0 < r < 1, 0 < s < 1, 0 < t < 1, 0 < u < 1), etc. lithium compounds can be used as materials This is possible.

[0312] Also, as the positive electrode active material, A x M2(XO4)3 (A = Li, Na, Mg, M = Fe, Mn, Ti, V, Nb, X = S, P, Mo, W, As, Si) represented by the general formula of NASICON type compounds can be used. NASICON type compounds include Fe2(MnO4)3, Fe2(SO4)3, Li3Fe2(PO4)3, etc. Also, as the positive electrode active material, L It is represented by the general formula i2MPO4F, Li2MP2O7, and Li5MO4 (M=Fe, Mn). compounds such as NaFeF3, FeF3, and other perovskite-type fluorides, TiS2, MoS2 Metal chalcogenides (sulfides, selenides, tellurides) such as LiMVO4, and inverse spin Vanadium oxides (V2O5, V6O 13 , LiV 3O8, etc.), manganese oxides, organic sulfur compounds, and other materials can be used.

[0313] In addition, the carrier ion may be an alkali metal ion or an alkaline earth ion other than the lithium ion. In the case of metal ions, instead of lithium, an alkali metal (e.g., sodium) is used as the positive electrode active material. thorium, potassium, etc.), alkaline earth metals (e.g. calcium, strontium, barium, etc.), For example, NaFeO2 or Na 2 / 3 [Fe 1 / 2 Mn 1 / 2 ]O2 and other sodium-containing layered oxides are used as the positive electrode active material. It can be used.

[0314] In addition, a material in which a plurality of the above materials are combined may be used as the positive electrode active material. For example, A solid solution of a combination of the above materials can be used as the positive electrode active material. For example, L iCo 1 / 3 Mn 1 / 3 Ni 1 / 3 A solid solution of O2 and Li2MnO3 is used as the positive electrode active material. There can be.

[0315] 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 conductivity of the electrode can be improved by providing a conductive material such as a carbon layer. For example, the carbon layer covering the positive electrode active material layer 502 is formed by dissolving glucose or the like during the baking of the positive electrode active material. The carbohydrates can be mixed together to form

[0316] The average particle size of the primary particles of the granular positive electrode active material layer 502 is 50 nm or more and 100 μm or less. It is a good idea to use the following.

[0317] The conductive additives include acetylene black (AB), graphite particles, and carbon black. Nanotubes, graphene, fullerene, etc. can be used.

[0318] The conductive assistant can form an electronic conductive network in the positive electrode 511. The electric auxiliary agent can maintain the electric conduction path between the positive electrode active material layers 502. By adding a conductive additive to the electrode active material layer 502, a positive electrode active material having high electronic conductivity can be obtained. A layer of polymer 502 can be realized.

[0319] In addition to the typical polyvinylidene fluoride (PVDF), polyimide is also used as a binder. , polytetrafluoroethylene, polyvinyl chloride, ethylene propylene diene poly styrene-butadiene rubber, acrylonitrile-butadiene rubber, fluororubber, Uses polyvinyl acetate, polymethyl methacrylate, polyethylene, nitrocellulose, etc. It is possible.

[0320] The content of the binder relative to the total amount of the positive electrode active material layer 502 is 1 wt % or more and 10 wt % or less. is preferable, 2 wt% or more and 8 wt% or less is more preferable, and 3 wt% or more and 5 wt% or less is even more preferable. It is more preferable that the content of the conductive assistant with respect to the total amount of the positive electrode active material layer 502 is 1 wt%. The content is preferably from 1 wt % to 10 wt %, and more preferably from 1 wt % to 5 wt %.

[0321] When the positive electrode active material layer 502 is formed by the coating method, the positive electrode active material, the binder, and the conductive additive are mixed. The agent is mixed to prepare a positive electrode paste (slurry), which is then applied onto the positive electrode current collector 501 and dried. Just do that.

[0322] [Negative electrode] The negative electrode 515 is composed of a negative electrode current collector 505 and a negative electrode active material layer 5 formed on the negative electrode current collector 505. 16, one side of a sheet-shaped (or strip-shaped) negative electrode current collector 505 is One negative electrode 515 having a negative electrode active material layer 506 on one side, However, one embodiment of the present invention is not limited to this example. Alternatively, only the negative electrode 515 having the negative electrode active material layer 506 on one surface of the electrode 505 may be used. In this case, the negative electrode current collectors 505 are arranged so that the surfaces thereof not having the negative electrode active material layers 506 are in contact with each other. This allows a contact surface with less friction to be formed, and the stress when the secondary battery 102 is bent can be reduced. In addition, the negative electrode collector 505 has a negative electrode active material layer 506 on both sides thereof. Alternatively, only the negative electrode 515 may be used. This allows the capacity of the secondary battery 102 to be increased. The secondary battery 102 may have the following structure. By increasing the number of negative electrodes 515 in the secondary battery 102, The capacity of the secondary battery 102 can be increased.

[0323] The negative electrode current collector 505 is made of metals such as stainless steel, gold, platinum, iron, copper, titanium, and the like, and By using materials that are highly conductive and do not alloy with carrier ions such as lithium, In addition, heat-resistant materials such as silicon, titanium, neodymium, scandium, and molybdenum can be used. An aluminum alloy containing an element that improves the resistance can be used. 05: Foil, plate (sheet), net, punched metal, expanded metal, etc. The negative electrode current collector 505 has a thickness of 5 μm or more and 30 μm or less. In addition, the surface of the negative electrode current collector 505 is coated with graphite or the like. An undercoat layer may be provided.

[0324] The negative electrode active material layer 506 contains, in addition to the negative electrode active material, a binder ( The negative electrode active material layer 506 may contain a binder, a conductive assistant for increasing the conductivity of the negative electrode active material layer 506, and the like.

[0325] The negative electrode active material is a material that allows the dissolution and deposition of lithium, or the insertion and desorption of lithium ions. The material of the negative electrode active material layer 506 is not particularly limited as long as it is an electrically insulating material. In addition to lithium phosphate, examples of the materials include carbon-based materials and alloy-based materials that are commonly used in the field of energy storage.

[0326] Lithium metal has a low redox potential (-3.045 V vs. the standard hydrogen electrode) and is lightweight. and high specific capacity per volume (3860mAh / g and 2062mAh / cm 3 ) is therefore preferable.

[0327] Carbon-based materials include graphite, graphitizable carbon (soft carbon), and non-graphitizable carbon (hard carbon). carbon nanotubes, graphene, carbon black, etc. .

[0328] Graphite includes mesocarbon microbeads (MCMB), coke-based artificial graphite, and pitted graphite. Examples of the graphite include artificial graphite such as titanium-based artificial graphite, and natural graphite such as spheroidized natural graphite.

[0329] When lithium ions are inserted between the layers of graphite (the formation of lithium-graphite intercalation compounds), At times, it shows a low potential similar to that of lithium metal (0.1 to 0.3 V vs. Li / L) i + This allows lithium-ion batteries to exhibit high operating voltages. Graphite has a relatively high capacity per unit volume, small volume expansion, is inexpensive, and is a lithium It is preferable since it has advantages such as higher safety compared to metals.

[0330] As a negative electrode active material, it can carry out charge and discharge reactions by alloying and dealloying reactions with lithium. Possible alloy materials or oxides can also be used. In this case, examples of the alloy material include Mg, Ca, Al, Si, Ge, Sn, and Pb. , Sb, Bi, Ag, Au, Zn, Cd, Hg, In, etc. Such elements have a large capacity compared to carbon, and silicon in particular has a theoretical capacity of The capacity is 4200mAh / g, which is extremely high. For this reason, the use of silicon as the negative electrode active material As alloy materials using such elements, for example, Mg2Si, Mg2 Ge, Mg2Sn, SnS2, V2Sn3, FeSn2, CoSn2, Ni3Sn2, C u6Sn5, Ag3Sn, Ag3Sb, Ni2MnSb, CeSb3, LaSn3, La Examples include 3Co2Sn7, CoSb3, InSb, SbSn, etc.

[0331] In addition, the negative electrode active material is SiO, SnO, SnO2, titanium oxide (TiO2), lithium Li4Ti5O 12), lithium-graphite intercalation compound (Li x C6), Niobium oxide (Nb2O5), tungsten oxide (WO2), molybdenum oxide (MoO2) The oxides may be used.

[0332] In addition, the negative electrode active material is a composite nitride of lithium and transition metals, which has a Li3N structure. Li (3-x) M x N (M=Co, Ni, Cu) can be used. For example, Li 2.6 Co 0.4 N3 has a large charge / discharge capacity (900mAh / g, 1890mAh / cm 3 ) and is preferred.

[0333] When a composite nitride of lithium and transition metals is used, the negative electrode active material contains lithium ions, In addition, materials that do not contain lithium ions, such as V2O5 and Cr3O8, are used as the positive electrode active material. In addition, when a material containing lithium ions is used as the positive electrode active material, However, by first removing the lithium ions from the positive electrode active material, A composite nitride of lithium and a transition metal can be used as the material.

[0334] In addition, a material that undergoes a conversion reaction can be used as the negative electrode active material. For example, lithium oxide such as cobalt oxide (CoO), nickel oxide (NiO), and iron oxide (FeO) A transition metal oxide that does not undergo an alloying reaction with the metal may be used as the negative electrode active material. Further materials that can cause reactions include Fe2O3, CuO, Cu2O, RuO2, Cr2 Oxides such as O3, CoS 0.89 , NiS, CuS and other sulfides, Zn3N2, Cu3N, Nitrides such as Ge3N4, phosphides such as NiP2, FeP2, CoP3, FeF3, BiF 3. The above fluorides have a high potential, so they are often used as positive electrode active materials. It may be used.

[0335] When the negative electrode active material layer 506 is formed by a coating method, the negative electrode active material and the binder are mixed. A negative electrode paste (slurry) is prepared, and is applied onto the negative electrode current collector 505 and dried. A conductive assistant may be added to the negative electrode paste.

[0336] Graphene may be formed on the surface of the negative electrode active material layer 506. When the material is silicon, the volume change due to the absorption and release of carrier ions during the charge and discharge cycle is Since the change in the positive electrode potential is large, the adhesion between the negative electrode current collector 505 and the negative electrode active material layer 506 decreases, and the charging The battery characteristics deteriorate due to discharge. When graphene is formed on the silicon surface, the volume of the silicon changes during the charge / discharge cycle. Even if the negative electrode current collector 505 and the negative electrode active material layer 506 are not adhered to each other, the adhesion between the negative electrode current collector 505 and the negative electrode active material layer 506 can be prevented from decreasing. This is preferable since it reduces the deterioration of the battery characteristics.

[0337] In addition, a coating such as an oxide may be formed on the surface of the negative electrode active material layer 506. The coating formed by the decomposition of the electrolyte releases the charge consumed during its formation. In contrast, a film of oxide or the like is formed on the negative electrode active material in advance, resulting in irreversible capacity. By providing the electrolyte on the surface of the porous layer 506, the occurrence of irreversible capacitance can be suppressed or prevented. do.

[0338] The coating for coating the negative electrode active material layer 506 may include niobium, titanium, vanadium, tantalum, etc. Nitral, Tungsten, Zirconium, Molybdenum, Hafnium, Chromium, Aluminum or silicon oxide film, or a film containing any one of these elements and lithium Such coatings are not easily damaged by the decomposition products of conventional electrolytes. This film is sufficiently dense compared to the coating formed on the outermost surface.

[0339] For example, niobium oxide (Nb2O5) has an electrical conductivity of 10 -9 Low S / cm and high Therefore, the niobium oxide film prevents 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 high It has high lithium ion conductivity. Therefore, it is possible for lithium ions to pass through it. Silicon oxide or aluminum oxide may also be used.

[0340] The coating film that covers the negative electrode active material layer 506 can be formed by, for example, a sol-gel method. The sol-gel method is a process in which a solution of metal alkoxides and metal salts is subjected to a hydrolysis reaction. This method involves forming a gel that has lost its fluidity through a polycondensation reaction, and then baking the gel to form a thin film. The sol-gel method is a method for forming thin films from a liquid phase, so the raw materials are homogenized at the molecular level. Therefore, the raw material for the metal oxide film in the solvent stage can be mixed with a negative electrode active material such as graphite. By adding the above-mentioned agent, the active material can be easily dispersed in the gel. A coating can be formed on the surface of the negative electrode active material layer 506. By using the coating, This makes it possible to prevent a decrease in the capacity of the battery.

[0341] [Separator] The separator 503 may be made of cellulose or polypropylene (PP ), polyethylene (PE), polybutene, nylon, polyester, polysulfone, poly Acrylonitrile, polyvinylidene fluoride, tetrafluoroethylene, polyphenylene Porous insulators such as sulphide can be used. Nonwoven fabrics such as glass fiber and gas A composite membrane of lath fibers and polymer fibers may also be used.

[0342] [Electrolyte] The electrolyte 504 is an electrolyte in which carrier ions can move and The electrolyte is made of a material containing lithium ions, which are the base metal. Representative examples of the electrolyte include LiPF6, LiClO4, LiAsF6, LiBF4, LiCF3SO3, Li(CF3SO2)2 N, Li(C2F5SO2)2N, Li(SO2F)2N, etc. The electrolyte may be used alone or in any combination and ratio of two or more. Good too.

[0343] The solvent of the electrolyte 504 is a material in which carrier ions can move. The solvent for the liquid is preferably an aprotic organic solvent. Representative examples of the aprotic organic solvent are: Examples include ethylene carbonate (EC), propylene carbonate, and dimethyl carbonate. diethyl carbonate (DEC), ethyl methyl carbonate (EMC), γ-butyl These include lactone, acetonitrile, dimethoxyethane, and tetrahydrofuran. In addition, a polymer that can be gelled as a solvent for the electrolyte can be used. By using materials, or adding polymeric materials to the electrolyte for gelation, etc., leakage resistance, etc. This improves safety against battery damage. It also makes it possible to make the storage battery thinner and lighter. Representative examples of molecular materials are silicone gel, acrylic gel, acrylonitrile gel, poly Polyethylene oxide gel, polypropylene oxide gel, fluorine-based polymer gel In addition, ionic liquids (solvents at room temperature) that are flame-retardant and non-volatile are used as solvents for electrolytes. By using one or more molten salts, the internal temperature of the battery can be reduced due to internal short circuits, overcharging, etc. Even if the temperature rises, the battery can be prevented from bursting or catching fire. Ionic liquids are salts in a state where the ions are in a high ionic mobility (conductivity). The ionic liquid contains ethylmethylimidazolium (EMI) cation and anion. Ionic liquids containing phenylpyridinium (PP 13 ) Kachi Examples include ionic liquids that contain ions.

[0344] [Exterior body] There are various structures for the secondary battery. In this embodiment, the shape of the exterior body 507 is The film used to form the exterior body 507 is a metal film ( Aluminum, stainless steel, nickel steel, etc.), plastic film made of organic materials , Hybrids containing organic materials (such as organic resins and fibers) and inorganic materials (such as ceramics) Material films, carbon-containing inorganic films (carbon films, graphite films, etc.) A single layer film selected from the above or a laminated film made up of a plurality of these is used. The rubber is easy to emboss, and when recesses or protrusions are formed by embossing, the outer Since the surface area of ​​exterior body 507 exposed to the air is increased, the heat dissipation effect is excellent.

[0345] In addition, when the shape of the secondary battery 102 is changed by applying an external force, the secondary battery 102 When bending stress is applied to the exterior body 507 from the outside, a part of the exterior body 507 is deformed or broken. By forming a recess or a protrusion on the exterior body 507, Therefore, the strain caused by the stress applied to the secondary battery 10 can be relieved. The reliability of 2 can be improved. Note that strain is the change in the length of the object relative to its reference length (initial state). It is a measure of deformation that indicates the displacement of a material point in an object. This suppresses the effects of distortion caused by applying force from outside the storage unit within an acceptable range. Therefore, a highly reliable electricity storage unit can be provided.

[0346] The above is a description of the configuration example.

[0347] [Example of manufacturing method] An example of a method for producing the secondary battery 102 will be described below.

[0348] [Prepare the positive electrode and cover it with a separator] First, a positive electrode 511 having a positive electrode active material layer 502 formed thereon is placed on a separator 503 ( See Fig. 17(A). In Fig. 17(A), the meandering shape is created by forming slits. 5 shows an example in which the positive electrode current collector 501 has positive electrode active material layers 502 on both sides.

[0349] By forming a slit in the positive electrode current collector 501, when the secondary battery 102 is curved, It is possible to prevent the ends of the multiple current collectors from shifting from their original positions. This can reduce the tension applied to the thin current collector.

[0350] In addition, when the negative electrode 515 is overlapped in a later process, the region 5 overlapping with the slit of the negative electrode 515 The positive electrode active material layer 502 is not provided on the negative electrode 515. When the positive electrode active material layer 502 is provided on the surface 511a, the negative electrode active material layer 502 is formed in the region overlapping the positive electrode active material layer 502. The substance layer 506 is no longer present, and this may cause problems during the battery reaction. Carrier ions emitted from the positive electrode active material layer 502 are transported to the negative electrode active material layer 506 closest to the slit. As a result, there is a risk that carrier ions will be concentrated in the negative electrode active material layer 506. Therefore, the positive electrode active material layer 502 is not provided in the region 511a overlapping with the slit of the negative electrode 515. Thus, deposition of carrier ions in the negative electrode active material layer 506 can be suppressed.

[0351] Next, the separator 503 is folded along the dotted line in FIG. 3 sandwiches the positive electrode 511. Next, the outer peripheral portion of the separator 503 on the outside of the positive electrode 511 is joined. The separator 503 is formed in a pouch shape (see FIG. 17(B)). The outer periphery may be joined by using an adhesive, ultrasonic welding, or heat fusion. It may also be carried out by

[0352] In this embodiment, polypropylene is used as separator 503, and separator 50 The outer periphery of the 3 is bonded by heating. The bonded portion 503a is shown in FIG. 17(B). The positive electrode 511 can be covered with a separator 503. The separator 503 is a positive electrode active material. It is only necessary to form the conductive layer 502 so as to cover the substance layer 502 , and it is not necessary to cover the entire positive electrode 511 .

[0353] In addition, in Figs. 17(A) and (B), the separator 503 is folded. The embodiment is not limited to this. For example, the positive electrode 511 is sandwiched between two separators. In this case, the joint portion 503a may be formed so as to surround most of the four sides.

[0354] The outer periphery of the separator 503 may be joined intermittently or at regular intervals. The joining may be in the form of dots.

[0355] Alternatively, the joining may be performed on only one side of the outer periphery. Alternatively, the joining may be performed on only two sides of the outer periphery. Alternatively, bonding may be performed on the four sides of the outer periphery. The four sides can be made even.

[0356] In addition, in Figs. 17(A) and (B), the positive electrode 511 is covered with the separator 503. However, one embodiment of the present invention is not limited to this case. 1 may not be covered by the separator 503. For example, instead of the positive electrode 511, The pole 515 may be covered by a separator 503 .

[0357] [Prepare the negative electrode] Next, a negative electrode 515 is prepared (see FIG. 17(C)). In FIG. 17(C), The negative electrode current collector 505 has a meandering shape formed by forming a negative electrode active material layer 506 on both sides. Here is an example:

[0358] By forming a slit in the negative electrode current collector 505, when the secondary battery 102 is curved, The position of the ends of the multiple current collectors can be prevented from shifting. The tension applied to the current collector can be relieved.

[0359] [Put the positive and negative electrodes together and connect the leads] Next, the positive electrode 511 and the negative electrode 515 are stacked (see FIG. 18(A)). In this embodiment, an example in which two positive electrodes 511 and two negative electrodes 515 are used is shown.

[0360] Next, the positive electrode tabs of the multiple positive electrode current collectors 501 and the positive electrode lead 521 having the sealing layer 520 are The two parts are electrically connected by applying pressure and irradiating them with ultrasound (ultrasonic welding).

[0361] In addition, the leads may crack or break due to stress caused by the application of external force after the capacitor is manufactured. Disconnection is likely to occur.

[0362] Therefore, when the positive electrode lead 521 is ultrasonically welded, it is sandwiched by a bonding die having a protrusion. This allows the positive electrode tab to have a connection region and a curved portion (FIG. 18(B)).

[0363] By providing this curved portion, the secondary battery 102 can be easily manufactured without being subjected to external force. Therefore, the reliability of the secondary battery 102 can be improved. do.

[0364] In addition, the positive electrode tab is not limited to being curved, and the material of the positive electrode current collector may be stainless steel. The thickness of the positive electrode current collector is set to 10 μm or less, which is suitable for the fabrication of secondary batteries. The structure may be such that stress caused by application of external force after manufacturing can be easily alleviated.

[0365] Of course, it goes without saying that a plurality of these may be combined to reduce the stress concentration on the positive electrode tab. None.

[0366] Similarly to the positive electrode current collector 501, the negative electrode tab of the negative electrode current collector 505 and the sealing layer 520 are The negative electrode lead 525 is electrically connected to the negative electrode lead 525 by ultrasonic welding.

[0367] [Prepare an exterior body to cover the positive and negative electrodes] The film used for the exterior is folded and the overlapping side is bonded by thermocompression. In FIG. 8(B), the portion where one side of the exterior body 507 is joined by thermocompression is shown as a joint 507a. Positive electrode 511 and negative electrode 515 are covered with this exterior body 507.

[0368] [Inject the electrolyte] Next, the sealing layer 520 of the positive electrode lead 521 and the sealing layer 525 of the negative electrode lead 525 are The side of the exterior body 507 that overlaps with 520 is heat-pressed in the same manner as above (FIG. 19(A)). After that, the electrolyte 507 is poured from the unsealed side 507b of the exterior body 507 shown in FIG. 04 is placed in the area covered by the exterior body 507.

[0369] Then, the remaining side of the exterior body 507 is sealed while vacuuming, heating and pressurizing. A secondary battery 102 is obtained (FIG. 19(B)). The electrolyte injection and sealing operations are performed by using a globe. The vacuum is drawn using a vacuum sealer, a liquid injection device, etc. It is recommended to use a sealer or similar device to perform this. It is also recommended to clamp the sealer between two heatable bars. Heating and pressurization can be performed by the following. For example, the vacuum degree is 60K. The temperature can be adjusted to 190°C and the pressure can be adjusted to 0.1 MPa for 3 seconds. Alternatively, the sealing may be performed with the exterior body 507 pressed down from above. Air bubbles that may have been mixed in when the liquid was injected can be removed from between the positive and negative electrodes.

[0370] [Modifications] As a modification of the secondary battery 102, a secondary battery 102 is shown in FIG. The secondary battery 102 shown in FIG. 15 has a positive electrode lead 521 and a negative electrode lead Specifically, the secondary battery 102 in FIG. The negative electrode lead 525 is disposed on the same side of the exterior body 507, but the negative electrode lead 525 is disposed on the same side of the exterior body 507 in the secondary battery 1 shown in FIG. In FIG. 02, the positive electrode lead 521 and the negative electrode lead 525 are attached to different sides of the exterior body 507. In this way, the secondary battery according to one embodiment of the present invention allows the leads to be freely arranged. Therefore, the design freedom is high. In addition, the productivity of a product using the secondary battery of one embodiment of the present invention can be improved. can be increased.

[0371] FIG. 20B is a diagram illustrating a manufacturing process of the secondary battery 102 in FIG. The method for manufacturing the secondary battery 102 in FIG. 15 can be referred to. The electrolyte 504 is omitted.

[0372] In addition, in order to make the film surface used for the exterior body 507 uneven in advance, pressing, e.g. For example, embossing may be performed. By providing the film surface with irregularities, it is possible to improve the properties of the film as a secondary battery. Flexibility and stress relief are improved. Embossing improves the film surface (or The concave or convex part formed on the back surface of the film is the volume of the space that makes the film a part of the wall of the sealing structure. This closed space is formed by the concave or convex parts of the film forming a bellows structure. It can be said that the bellows structure is formed. The method is not limited to the above, but may be any method capable of forming a relief on a part of the film.

[0373] Note that one embodiment of the present invention is not limited to the above. Since various inventive aspects have been described, it is understood that the invention is not limited to any particular embodiment. For example, as one embodiment of the present invention, an example in which the present invention is applied to a lithium ion secondary battery will be described. However, the present invention is not limited to this. nickel-ion polymer secondary battery, nickel-metal hydride battery, nickel-cadmium battery, Nickel-iron batteries, nickel-zinc batteries, silver-zinc oxide batteries, solid-state batteries, air batteries, The present invention may be applied to a secondary battery, a capacitor, a lithium ion capacitor, or the like. The above embodiment does not necessarily have to be applied to lithium ion secondary batteries.

[0374] The above is an explanation of the example of the manufacturing method.

[0375] This embodiment may be combined, at least in part, with other embodiments described in this specification. It can be implemented in combination. [Explanation of symbols]

[0376] 10 Connection member 11 Pipe 11a Bulkhead 11b part 11c part 12. Pivot 12a Tip 12b Tsuba 12c Shaft 12d distal end 13. Spring 13a Spring 13b Spring 14 Cushioning material 15 Cushioning material 20 Power supply 20a power supply 20b power supply 21 Exterior body 21a Exterior body 21b Exterior body 21c Exterior 21d Exterior 22 Battery 23 Tabs 24 Wiring 25 Conductive materials 26 Exterior body 27 Contents 28 Protection circuit 29 Substrate 30 Electronic equipment 31 Case 32 Display section 33 Rug 34 Bearing section 35 Switch 41 Battery 42 Tabs 42a electrode 42b electrode 50 Systems 51 Buckle 52 holes 61 Control section 62 Power supply control section 63 Functional Circuits 64 Sensors 65 Battery 66 Power receiving unit 68 Power supply line 69 Bus Line 71 Terminal 72 Wiring 73a Buffer 73b Cushioning material 75 Substrate 76a FPC 76b FPC 102 Secondary battery 300 Head Mounted Display 301 Case 302 Display section 303 Operation button 305 Lens 306 Dial 310 Mobile Information Terminals 311 Case 312 Display section 313 Operation button 314 External connection port 315 Speaker 316 Mike 317 Camera 320 Camera 321 Case 322 Display section 323 Operation button 324 Shutter button 326 Lens 501 Positive electrode current collector 502 Positive electrode active material layer 503 Separator 503a joint 504 Electrolyte 505 Negative electrode current collector 506 Negative electrode active material layer 507 Exterior body 507a Joint Around 507b 511 Positive electrode 511a area 515 negative electrode 520 Sealing layer 521 Positive lead 525 Negative lead

Claims

[Claim 1] A connection member having a pair of pivots, a pipe, and a spring, The pivot has a tip portion, a flange portion, a shaft portion, and an end portion, The spring is located inside the pipe and between the pair of pivots, The end portion is a portion located inside the pipe, The tip portion and the flange portion are portions that protrude from the pipe in a natural state, The shaft portion is a portion located between the flange portion and the end portion, the shaft portion has a portion that protrudes from the pipe in a natural state and is located inside the pipe when the spring is compressed, the shaft portion and the tip portion have a conductive portion, A connecting member, wherein the pair of pivots are electrically insulated from each other.

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