Batteries and electronic devices

Abstract

The present invention provides a battery and an electronic device, wherein a marking portion is provided on the outer side wall of the battery, and a plane formed by a center line in the radial extension direction of the shell of at least part of the second pole lug and the radial extension direction of the shell of at least part of the first pole lug and the marking portion along the central axis of the shell in the axial direction has a preset angle. The battery and the electronic device provided by the embodiment of the present invention can easily and accurately determine the position of the second pole lug of the battery, and then package the battery, thereby improving the electrical performance of the battery and reducing the risk of safe use.

Description

Technical Field

[0001] The present invention relates to the technical field of battery structures, and in particular to a battery and an electronic device. Background Art

[0002] A battery is a cup, tank or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy. Take button batteries as an example. They are shaped like buttons, usually with a larger diameter and a thinner thickness. They are widely used in electronic devices such as electronic watches, Bluetooth headsets, and electric toys.

[0003] The shell of a button battery is generally made of stainless steel, and the negative electrode ear is made of nickel. The stainless steel metal shell and the nickel negative electrode ear are easily magnetized, so when processing and assembling the battery, it is necessary to find the location of the negative electrode ear and perform magnetic shielding and other treatments on the location of the negative electrode ear. However, the negative electrode ear is generally located inside the metal shell, and the location of the negative electrode ear cannot be determined by the naked eye. In related technologies, X-rays are generally used to determine the location of the negative electrode ear and mark it.

[0004] However, the method of using X-rays to determine the position of the negative electrode ear is complicated, and the accuracy of the negative electrode ear position confirmation is low, and it also poses a safety risk to the operator. Summary of the invention

[0005] The present invention provides a battery and an electronic device, which can easily and accurately determine the position of the second pole ear of the battery, and then package the battery, thereby improving the electrical performance of the battery and reducing the risk of safe use.

[0006] One aspect of an embodiment of the present invention provides a battery, comprising: a housing and a battery cell; the housing has a receiving cavity, and the battery cell is located in the receiving cavity;

[0007] The housing comprises a shell and a top cover insulated and connected to the shell;

[0008] The battery cell comprises: a battery cell body and a first pole lug and a second pole lug connected to the battery cell body, wherein the first pole lug is electrically connected to the top cover, and at least a portion of the first pole lug extends along the radial direction of the shell, and the second pole lug is electrically connected to the shell, and at least a portion of the second pole lug extends along the radial direction of the shell;

[0009] The outer wall of the shell has a marking portion, and a center line of at least part of the second pole lug in the radial extension direction of the shell, a center line of at least part of the first pole lug in the radial extension direction of the shell, and a plane formed by the central axis of the marking portion in the axial direction of the shell have a preset angle.

[0010] The battery provided by the embodiment of the present invention is provided by electrically connecting the first pole lug of the battery cell to the top cover, and at least part of the first pole lug extends in the radial direction of the shell, and electrically connecting the second pole lug of the battery cell to the shell, and at least part of the second pole lug extends in the radial direction of the shell, and by providing a marking portion on the shell of the battery, the central axis of the marking portion along the axial direction of the shell and the center line of the first pole lug on the top cover in the extension direction are located in the same plane, and the center line of the second pole lug on the shell in the radial extension direction of the shell has a preset angle with the plane. In this way, the position of the second pole lug inside the shell can be determined according to the preset angle by the central axis of the marking portion on the shell along the axial direction of the shell, that is, the preset angle radial position of the bottom of the shell on the plane formed by the central axis of the marking portion along the axial direction of the shell and the center line of the first pole lug on the top cover in the radial extension direction of the shell is the projection position of the second pole lug on the bottom of the shell.

[0011] In a possible implementation manner, the marking portion is a protrusion or a depression.

[0012] In a possible implementation, the invention further includes: a first insulating member;

[0013] The first insulating member is disposed on the bottom surface of the housing, and the first insulating member covers the orthographic projection of at least a portion of the second electrode tab on the bottom surface of the housing.

[0014] In a possible implementation manner, the first insulating member is fan-shaped, and the fan-shaped angle of the first insulating member is 180°-270°.

[0015] In a possible implementation manner, the preset angle is between 0° and 90°.

[0016] In a possible implementation, the invention further includes: a first adapter;

[0017] The first adapter is electrically connected to the top cover.

[0018] In a possible implementation manner, the first pin of the first adapter is located on the outer side of the housing;

[0019] The invention also includes a second insulating member, wherein the second insulating member is arranged between the first pin and the outer side wall of the housing.

[0020] In a possible implementation, the invention further includes: a second adapter;

[0021] The second adapter is electrically connected to the housing.

[0022] In a possible implementation manner, the second pin of the second adapter is located on the outer side of the shell, and the second insulating member is configured between the second pin and the outer side wall of the shell.

[0023] In a possible implementation manner, the housing includes a bottom shell and a cover plate, and the bottom shell and the cover plate are enclosed to form the accommodating cavity;

[0024] The cover plate is welded to the bottom shell, the top cover is arranged on the cover plate, and the top cover is insulated and connected to the cover plate.

[0025] Another aspect of an embodiment of the present invention provides an electronic device, comprising: an electronic device body and the battery as described above;

[0026] The battery is disposed on the electronic device body, and the battery is electrically connected to the electronic device.

[0027] In the electronic device provided by the embodiment of the present invention, the first pole lug of the battery cell is electrically connected to the top cover in the battery, and at least part of the first pole lug extends in the radial direction of the shell, the second pole lug of the battery cell is electrically connected to the shell, and at least part of the second pole lug extends in the radial direction of the shell, and a marking portion is provided on the shell of the battery, the central axis of the marking portion along the axial direction of the shell and the center line of the first pole lug on the top cover in the extension direction are located in the same plane, and the center line of the second pole lug on the shell in the radial extension direction of the shell has a preset angle with the plane. In this way, the position of the second pole lug inside the shell can be determined according to the preset angle by the central axis of the marking portion on the shell along the axial direction of the shell, that is, the preset angle radial position of the bottom of the shell on the plane formed by the central axis of the marking portion along the axial direction of the shell and the center line of the first pole lug on the top cover in the radial extension direction of the shell is the projection position of the second pole lug on the bottom of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 A schematic diagram of a perspective structure of a battery provided by an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of another perspective view of a perspective structure of a battery provided by an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the appearance structure of a battery provided by an embodiment of the present invention from one viewing angle;

[0032] Figure 4A schematic diagram of the appearance structure of a battery provided by an embodiment of the present invention from another viewing angle;

[0033] Figure 5 A schematic diagram of the structure of a battery provided by an embodiment of the present invention;

[0034] Figure 6 A flowchart of the steps of a method for manufacturing a battery provided by an embodiment of the present invention;

[0035] Figure 7 for Figure 6 The operation diagrams corresponding to the steps in the figure.

[0036] Description of reference numerals:

[0037] 100-battery; 10-housing; 11-accommodating cavity;

[0038] 12-housing; 121-marking portion; 122-bottom shell;

[0039] 123-cover plate; 13-top cover; 131-liquid injection hole;

[0040] 20-battery core; 21-battery core body; 211-center hole;

[0041] 22-first pole lug; 23-second pole lug; 30-first insulating member;

[0042] 40-identification mark; 50-second adapter; 51-second pin;

[0043] 60-first adapter; 61-first pin; 70-second insulating member;

[0044] 80-sealing cover; 90-laser beam. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The battery provided in the embodiment of the present invention may be a button battery, a cylindrical battery, a special-shaped battery or other types of batteries. In the embodiment of the present invention, a button battery is taken as an example for description.

[0047] Button batteries are widely used in various microelectronic devices due to their small size. Their diameters range from 4.8mm to 30mm and their thicknesses range from 1mm to 7.7mm. They are generally used as backup power sources for various electronic devices, such as computer motherboards, electronic watches, electronic dictionaries, electronic scales, remote controls, electric toys, pacemakers, etc. Button batteries mainly generate electricity through chemical reactions between the positive and negative electrode materials in the battery cavity in the electrolyte.

[0048] Generally, the shell of a button battery is made of stainless steel, and the negative ear is made of nickel. The stainless steel metal shell and the nickel negative ear are easily magnetized, so when processing and assembling the battery, it is necessary to find the position of the negative ear and perform magnetic shielding treatment on the position of the negative ear, and then perform operations such as welding the adapter to the bottom wall of the battery. However, the negative ear is generally located inside the metal shell, and the position of the negative ear cannot be determined by the naked eye. In the related art, X-rays are generally used to determine the position of the negative ear and then manual marking is performed. This operation process is complicated, and the positioning of the negative ear is not accurate enough. In addition, it will cause safety risks to the operator.

[0049] In view of this, an embodiment of the present invention provides a battery and an electronic device, wherein the first pole lug of the battery cell in the battery is electrically connected to the top cover of the shell, and at least part of the first pole lug extends in the radial direction of the shell, and the second pole lug of the battery cell is electrically connected to the shell of the shell, and at least part of the second pole lug extends in the radial direction of the shell, and a marking portion is provided on the shell of the battery, and the marking portion is located in the same plane along the central axis of the axial direction of the shell and the center line of the extension direction of the first pole lug on the top cover, and the extension direction of the second pole lug on the shell has a preset angle with the plane. In this way, the position of the second pole lug inside the shell can be determined according to the preset angle by the marking portion on the shell along the central axis of the axial direction of the shell, that is, the preset angle radial position of the bottom of the shell on the plane formed by the central axis of the marking portion along the axial direction of the shell and the center line of the extension direction of the first pole lug on the top cover is the projection position of the second pole lug on the bottom of the shell.

[0050] The battery and the electronic device provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] Figure 1 A schematic diagram of a perspective structure of a battery 100 provided in an embodiment of the present invention. Figure 2 Another perspective diagram of the perspective structure of the battery 100 provided in the embodiment of the present invention, combined with Figure 1 and Figure 2 As shown, the battery 100 provided in the embodiment of the present invention comprises: a housing 10 and a battery cell 20. The housing 10 has a receiving cavity 11, and the battery cell 20 is disposed in the receiving cavity 11. The housing 10 comprises: a shell 12 and a top cover 13 insulated from the shell 12.

[0052] Among them, the battery cell 20 can be a wound core battery cell 20, including: a battery cell body 21 and a first pole ear 22 and a second pole ear 23 connected to the battery cell body 21, and the battery cell body 21 is formed by stacking a positive electrode sheet (not shown in the figure), a separator (not shown in the figure) and a negative electrode sheet (not shown in the figure) in sequence and winding from one end to the other end, and the battery cell body 21 has a central hole 211. An end surface insulating layer is provided on at least one side of the battery cell body 21 close to the inner top surface of the outer shell 10 and the battery cell body 21 close to the inner bottom surface of the outer shell 10, so that the battery cell 20 and the outer shell 10 do not form a complete passage. Of course, the battery cell 20 provided in the embodiment of the present invention is not limited to the above examples, and can also be a laminated wound core, etc.

[0053] The first pole tab 22 is electrically connected to the top cover 13, and at least a portion of the first pole tab 22 extends along the radial direction of the housing 10. For example, Figure 1 and Figure 2 As shown, in the accompanying drawings of the present invention, a part of the first pole ear 22 extends along the axial direction of the shell 10, and the other part extends along the radial direction of the shell 10 as an example for explanation. Part of the first pole ear 22 is led out from the end of the positive electrode sheet, extends along the axial direction of the shell 10, and then extends along the radial direction of the shell 10 and is electrically connected to the top cover 13. Of course, all of the first pole ear 22 can also extend along the radial direction of the shell 10. In this case, the first pole ear 22 is led out from the top of the positive electrode sheet, directly extends along the radial direction of the shell 10, and then is electrically connected to the top cover 13. The second pole ear 23 is electrically connected to the shell 12. For example, the second pole ear 23 is electrically connected to the inner bottom surface of the shell 12, and at least part of the second pole ear 23 extends along the radial direction of the shell 10. For example, Figure 1 and Figure 2 As shown, in the drawings of the present invention, the entire second pole tab 23 is extended along the radial direction of the housing 10 as an example for description. The manner in which part of the second pole tab 23 extends along the radial direction of the housing 10 is the same as the manner in which the first pole tab 22 is arranged, and will not be described one by one here.

[0054] It should be noted that, in the present application, the first pole ear 22 can be a positive pole ear or a negative pole ear, and correspondingly, the second pole ear 23 can be a negative pole ear or a positive pole ear, that is, when the first pole ear 22 is a positive pole ear, the second pole ear 23 is a negative pole ear, and when the first pole ear 22 is a negative pole ear, the second pole ear 23 is a positive pole ear. In the drawings of the embodiments of the present application, the first pole ear 22 is a positive pole ear and the second pole ear 23 is a negative pole ear.

[0055] Of course, the present invention is not limited to this, and further reference is made to Figure 1 and Figure 2As shown, in the battery 100 provided in the embodiment of the present invention, a marking portion 121 is further provided on the outer side wall of the shell 12, and the marking portion 121 is located in the same plane along the central axis in the axial direction of the shell 10 and the center line of at least part of the first pole tab 22 electrically connected to the top cover 13 in the extension direction, and the two lines determine a plane, and the center line of at least part of the second pole tab 23 in the radial direction of the shell 10 and the center line of at least part of the first pole tab 22 in the radial direction of the shell 10 and the plane formed by the marking portion 121 along the axial direction of the shell 10 have a preset angle, and the preset angle can be any value in the range of 0°-90°, such as 0°, 30°, 45°, 60°, 90°, etc. In the embodiment of the present application, the plane formed by the center line of at least part of the second pole tab 23 in the radial direction of the shell 10 and the center line of at least part of the first pole tab 22 in the radial direction of the shell 10 and the marking portion 121 along the axial direction of the shell 10 is 90° as an example for description.

[0056] It should be mentioned that, in the same batch of products, after the battery cell 20 and the housing 10 are assembled, the position of the second pole tab 23 of the battery cell 20 on the inner bottom surface of the housing 12 is fixed. For example, if the preset angle is 90°, then in the same batch of products, the center line of at least part of the second pole tab 23 in the radial direction of the housing 10 and the center line of at least part of the first pole tab 22 in the radial direction of the housing 10 and the plane formed by the central axis of the marking portion 121 in the axial direction of the housing 10 are all at 90°.

[0057] It should be understood that, since the center line of at least part of the second pole lug 23 in the radial extension direction of the shell 10 and the center line of at least part of the first pole lug 22 in the radial extension direction of the shell and the plane formed by the marking portion 121 along the axial center axis of the shell 10 have a preset angle, the position of the second pole lug 23 can be determined by the marking portion 121 along the axial center axis of the shell 10 according to the preset angle. Specifically, a plane is made from the marking portion 121 along the axial center axis of the shell 10 to the side of the shell 10 facing the marking portion 121, and the radial position of the bottom of the shell 12 at the preset angle with the plane is the projection position of the second pole lug 23 at the bottom of the shell 12. In short, in the embodiment of the present invention, the first pole lug 22 and the second pole lug 23 are perpendicular to each other, so the position of the second pole lug 23 can be determined by the position of the marking portion 121 along the axial center axis of the shell 10. In addition, the confirmation process is simple, accurate, and has high precision, and can also reduce safety risks compared to the method of determining by X-rays.

[0058] It can be understood that in the embodiment of the present invention, the marking portion 121 is illustrated by taking a straight line as an example. The straight marking portion 121 can more accurately find the central axis position of the marking portion 121 in the axial direction of the outer shell 10, thereby improving the accuracy of determining the position of the second pole ear 23. Within the error range, the marking portion 121 can also be a spiral line, an arc line, a graphic, etc., as long as the mark can be displayed on the outer wall of the outer shell 10.

[0059] It should be noted that the qualifiers such as vertical and other relative positional relationships mentioned in the embodiments of the present application are all based on the current technological level, rather than being absolutely strict definitions in the mathematical sense, and a small amount of deviation is allowed, and anything close to vertical is acceptable. For example, A and B are vertical, which means that A and B are vertical or close to vertical, and the angle between A and B can be between 80 degrees and 100 degrees.

[0060] It should also be mentioned that in the drawings of the embodiments of the present invention, the actual proportions of the various parts are not drawn, so the present application should not be limited to the proportions shown in the drawings. Figure 1 and Figure 2 In the embodiment, the sizes of the first electrode tab 22 and the second electrode tab 23 can be enlarged or reduced accordingly.

[0061] In some embodiments of the present invention, the marking portion 121 may be a protrusion or a depression formed by laser engraving. The laser engraving method can not only ensure that the size of the marking portion 121 is uniform, the edge is smooth, burr-free and non-adhesive, but also helps to improve the production efficiency of the product.

[0062] Figure 3 A schematic diagram of the appearance structure of a battery 100 provided in an embodiment of the present invention from one perspective, referring to Figure 3 As shown, in some embodiments of the present invention, it also includes: a first insulating member 30, the first insulating member 30 is arranged on the outer bottom surface of the shell 12, and the first insulating member 30 covers at least part of the orthographic projection of the second pole ear 23 on the bottom surface of the shell 12. In the embodiment provided by the present invention, the orthographic projection of the first insulating member 30 covering part of the second pole ear 23 on the bottom surface of the shell 12 is used as an example for explanation. At this time, it is necessary to ensure that the welding line between the second pole ear 23 and the bottom surface of the shell 12 is located within the coverage range of the first insulating member 30 or at the boundary of the coverage range, and the part of the magnetic field generated by the second pole ear 23 is located within the coverage range of the first insulating member 30, that is, the part of the second pole ear 23 connecting the battery body 21 and the bottom surface of the shell 12 is located within the coverage range of the first insulating member 30. Of course, the first insulating member 30 can also cover the orthographic projection of the entire second pole ear 23 on the bottom surface of the shell 12 to achieve the magnetic shielding effect of the battery 100 and prevent the battery 100 from being magnetized. Among them, the first insulating member 30 can be a colloid, such as adhesive tape.

[0063] Continue to refer Figure 3 As shown, in some embodiments of the present invention, the first insulating member 30 may be fan-shaped, and the fan-shaped angle of the first insulating member 30 is between 180° and 270°, so as to achieve the effect of fully covering the orthographic projection of the second pole tab 23 on the bottom surface of the shell 12 .

[0064] It should be mentioned that an identification mark 40 (such as Figure 3 as shown), such as a QR code, etc.

[0065] In order to connect the battery 100 to the circuit structure inside the electronic device, in some embodiments of the present invention, for example Figure 3 As shown, the second adapter 50 is also included, and the second adapter 50 is electrically connected to the shell 12. In the present application, the second adapter 50 serves as the negative electrode adapter of the battery 100. Specifically, the second adapter 50 is welded to the non-first insulating member 30 area of ​​the outer bottom surface of the shell 12. The bottom thickness of the shell 12 is generally thick, and welding the second adapter 50 will not affect the function of the second pole ear 23.

[0066] Figure 4 Another perspective diagram of the appearance structure of the battery 100 provided in an embodiment of the present invention, refer to Figure 4 As shown, in some embodiments of the present invention, it may also include: a first adapter 60 , the first adapter 60 is electrically connected to the top cover 13 , and the first adapter 60 serves as a positive electrode adapter of the battery 100 .

[0067] The first adapter 60 has a first pin 61. In order to facilitate connection with the electronic device, the first pin 61 is generally arranged on the outer side of the housing 12. At this time, in order to insulate the first pin 61 from the outer side of the housing 12, the battery 100 further includes: a second insulating member 70, which is arranged between the first pin 61 and the outer side wall of the housing 12. The second insulating member 70 can be made of colloid, such as adhesive tape.

[0068] Similarly, the second pin 51 of the second adapter 50 may also be disposed on the outer surface of the housing 12 , and the second insulating member 70 may also be disposed between the second pin 51 and the outer wall of the housing 12 .

[0069] Figure 5 A schematic diagram of the structure of a battery 100 according to an embodiment of the present invention is shown in FIG. Figure 5 As shown, in some embodiments of the present invention, the housing 12 may include a bottom shell 122 and a cover plate 123 .

[0070] Specifically, the bottom shell 122 and the cover plate 123 are enclosed to form a receiving chamber 11. The battery cell 20 and the electrolyte are arranged in the receiving chamber 11, and the battery cell 20 undergoes a chemical reaction in the electrolyte to generate electric energy.

[0071] The cover plate 123 is welded to the bottom shell 122 as the negative electrode of the shell cover. The top cover 13 is arranged on the cover plate 123 and is insulated from the cover plate 123. For example, a film can be arranged between the top cover 13 and the cover plate 123 to achieve the insulation connection between the top cover 13 and the cover plate 123, so that the top cover 13 and the shell 12 can be insulated from each other. The inner top surface of the top cover 13 is electrically connected to the first pole ear 22 as the positive electrode of the shell cover.

[0072] It should be mentioned that a liquid injection hole 131 (see Figure 7 ), the injection hole 131 is connected to the accommodating chamber 11, and the electrolyte can be injected into the accommodating chamber 11 through the injection hole 131. After the electrolyte is injected, a sealing cover 80 (such as Figure 5 As shown), the injection hole 131 is closed to prevent the electrolyte from leaking out of the accommodating chamber 11, thereby improving the stability and reliability of the battery 100 structure.

[0073] Of course, the structure of the battery 100 housing 10 is not limited to the above examples. For example, the housing 10 can also be formed by joining an upper housing with an opening at one end and a lower housing with an opening at one end. The upper housing and the lower housing are enclosed to form a receiving cavity 11, and an insulating layer is sandwiched between the joint surfaces of the upper housing and the lower housing to insulate the upper housing and the lower housing, so that the upper housing and the lower housing can serve as the positive electrode and the negative electrode of the battery 100, respectively. Here, the structure of the battery 100 housing 10 is not limited.

[0074] The following is a method for manufacturing a battery 100, which can manufacture the battery 100 described above. The steps can be referred to as Figure 6 , Figure 7 for Figure 6 The operation diagrams corresponding to the steps in Figure 6 and Figure 7 As shown:

[0075] S101 , assembling the battery cell 20 in the housing 12 , wherein the second pole tab 23 of the battery cell 20 is electrically connected to the inner bottom surface of the housing 12 , and at least a portion of the second pole tab 23 extends along the radial direction of the housing 12 .

[0076] S102, placing the top cover 13 horizontally and the shell 12 radially vertically.

[0077] S103 , using a clamp to fix the first electrode tab 22 of the battery cell 20 to the top cover 13 .

[0078] S104 , using the laser beam 90 emitted by the laser emitter to follow a set trajectory, the first electrode tab 22 is connected to the top cover 13 .

[0079] S105 , moving the laser beam 90 to open a marking portion 121 on the outer wall of the housing 12 .

[0080] S106 , assembling the battery 100 .

[0081] Specifically, in S101 , the battery cell 20 is assembled in the housing 12 , the second pole tab 23 of the battery cell 20 is electrically connected to the inner bottom surface of the housing 12 , and at least a portion of the second pole tab 23 extends in the radial direction of the housing 12 .

[0082] In S102, the top cover 13 and the housing 12 are aligned. Figure 7 As shown, the top cover 13 is placed horizontally and the shell 12 is placed radially vertically. Of course, the shell 12 can also be placed horizontally and the top cover 13 is placed vertically, ensuring that the top cover 13 and the shell 12 are in an open state at 90 degrees.

[0083] In S103, a charge-coupled device (CCD) is used to identify the positions of the first pole tab 22 and the injection hole 131, and a clamp is used to press the first pole tab 22 of the battery cell 20 and the top cover 13 to fix the position of the first pole tab 22 so that the first pole tab 22 will not move or deviate. In the effective welding area between the first pole tab 22 and the top cover 13, under the pressure of the inert gas, the laser beam 90 emitted by the laser emitter follows a set trajectory to connect the first pole tab 22 and the top cover 13 together. The laser emitter can be a laser galvanometer.

[0084] In S104, the moving laser beam 90 opens a marking portion 121 on the outer wall of the housing 12, such as Figure 7 In the embodiment, the moving laser beam 90 opens a marking line as a marking portion 121 on the outer wall of the housing 12 opposite to the horizontal first pole tab 22 , and the marking portion 121 is parallel to the center line of the first pole tab 22 in the extending direction.

[0085] In S105 , the battery 100 is assembled, including the overall welding of the battery 100 housing 10 , and the assembly of the first insulating member 30 , the second insulating member 70 , the second adapter 50 , the first adapter 60 , etc. of the battery 100 .

[0086] It should be noted that the welding trajectory of the first tab 22 can be set in the computer operation interface, and the welding trajectory of the first tab 22 can be a point, circle, polygon, spiral, arc, etc. The marking portion 121 can be a straight line, spiral, arc, etc., as long as the mark can be displayed on the outer wall of the housing 12.

[0087] The welding of the first pole ear 22 and the etching of the marking part 121 can use the same laser transmitter at the same station, which can reduce the action process and improve efficiency. For example, it can be set that after the welding of the first pole ear 22 is completed, the etching of the marking part 121 is delayed by 20-100ms, and the two actions do not interfere with each other. In addition, the laser galvanometer can automatically adjust the focal length to ensure the welding effect without over-welding or cold welding.

[0088] The welding power of the first pole ear 22 can be 20%-30%, the welding speed is 150ms-250ms, the weld mark is 0.02-0.1mm, there is no spatter during the welding process, the welding penetration is 0.08-0.2mm, and the 180° welding tensile test is greater than or equal to 5N.

[0089] There is no spatter in the process of etching the marking portion 121 by the laser beam 90 , and only the outer wall of the shell 12 is marked, without welding protrusions. The welding power can be 5%-10%, and the welding speed is 150ms-250ms.

[0090] An embodiment of the present invention further provides an electronic device, including: an electronic device body and a battery 100 as shown above, wherein the battery 100 is disposed on the electronic device body and electrically connected to the electronic device.

[0091] The technical features and technical effects of the battery 100 are consistent with those described above and will not be elaborated here.

[0092] In summary, the battery and electronic device provided by the present invention can determine the position of the second pole ear in the battery, and then the battery is packaged with glue to achieve a magnetic shielding effect, and then the adapter is welded on the bottom, which can improve the electrical performance and safety performance of the battery. Its main beneficial effects can be summarized into four points: 1. By laser etching the marking part 121, the position of the second pole ear of the battery can be determined through the marking part 121. 2. After determining the position of the second pole ear, the bottom wall insulating part can be packaged and the bottom wall adapter can be welded. 3. The magnetic shielding effect of the battery can be achieved to prevent the battery from being magnetized. 4. The electrical performance and safety performance of the battery can be improved.

[0093] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0094] In the description of the present invention, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0095] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can make the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery, characterized in that: include: Shell and battery cell; The housing has a receiving cavity, and the battery cell is located in the receiving cavity; The housing comprises a shell and a top cover insulated and connected to the shell; The battery cell comprises: a battery cell body and a first pole lug and a second pole lug connected to the battery cell body, wherein the first pole lug is electrically connected to the top cover, and at least a portion of the first pole lug extends along the radial direction of the shell, and the second pole lug is electrically connected to the shell, and at least a portion of the second pole lug extends along the radial direction of the shell; The outer wall of the shell has a marking portion, and a center line of at least part of the second pole lug in the radial direction of the shell, a center line of at least part of the first pole lug in the radial direction of the shell, and a plane formed by the center axis of the marking portion in the axial direction of the shell have a preset angle.

2. The battery according to claim 1, characterized in that The marking portion is convex or concave.

3. The battery according to claim 1, characterized in that Also includes: a first insulating member; The first insulating member is disposed on the bottom surface of the housing, and the first insulating member covers an orthographic projection of at least a portion of the second electrode tab on the bottom surface of the housing.

4. The battery according to claim 3, characterized in that The first insulating member is fan-shaped, and the fan-shaped angle of the first insulating member is 180°-270°.

5. The battery according to any one of claims 1 to 4, characterized in that: The preset angle is between 0° and 90°.

6. The battery according to any one of claims 1 to 4, characterized in that: Also includes: A first adapter; The first adapter is electrically connected to the top cover.

7. The battery according to claim 6, characterized in that The first pin of the first adapter is located on the outer side of the shell; The invention also includes a second insulating member, wherein the second insulating member is arranged between the first pin and the outer side wall of the housing.

8. The battery according to claim 7, characterized in that Also includes: A second adapter; The second adapter is electrically connected to the housing.

9. The battery according to claim 8, characterized in that The second pin of the second adapter is located on the outer side of the shell, and the second insulating member is configured between the second pin and the outer side wall of the shell.

10. The battery according to any one of claims 1 to 4, characterized in that: The housing comprises a bottom shell and a cover plate, wherein the bottom shell and the cover plate are combined to form the accommodating cavity; The cover plate is welded to the bottom shell, the top cover is arranged on the cover plate, and the top cover is insulated and connected to the cover plate.

11. An electronic device, characterized in that: include: An electronic device body and a battery as claimed in any one of claims 1 to 10; The battery is disposed on the electronic device body, and the battery is electrically connected to the electronic device.

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