Batteries and electronic devices

Abstract

The present application discloses a battery and an electronic device, belonging to the field of battery technology. The battery includes a battery cell and a protective plate assembly, the battery cell includes a battery cell body and a pole ear, the battery cell body is provided with a top seal, a first pit and a second pit, the first pit and the second pit are respectively located on two opposite sides of the top seal, the pole ear includes a first part and a second part connected to the first part, at least part of the first part is arranged in the top seal and electrically connected to the battery cell body; the protective plate assembly includes a protective plate and components arranged on the protective plate, the protective plate is electrically connected to the second part, the protective plate and the first pit are both located on the same side of the top seal, the components are located on the side of the protective plate close to the second pit, and the components are located on the side of the top seal away from the battery cell body. In this scheme, the overall thickness of the protective plate assembly can be reduced, and the thickness of the part of the component that overlaps with the top seal in space does not participate in the stacking of the thickness of the head of the battery cell, which can effectively reduce the thickness of the head of the battery cell.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and specifically relates to a battery and an electronic device. Background Art

[0002] In the industry, the batteries of current electronic devices (such as mobile phones, tablets, laptops, etc.) mainly include battery cells, protection board assemblies and insulating tape. In the usual manufacturing process, the protection board assembly and the positive and negative ears of the battery cell are spot welded by laser. After the spot welding is completed, an electrical connection is formed. The protection board assembly is accommodated in the groove formed by the top wall surface and the top sealing edge of the battery cell by bending the ears in the folding process, and finally wrapped with insulating tape to form the head of the battery, which contains the protection board assembly.

[0003] However, the protection plate assembly is bent as a whole into the pit of the battery cell, which will cause the thickness of the head of the battery to be thicker, which is not conducive to achieving the thickness reduction of the electronic device. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a battery and an electronic device that can solve the problem of the large thickness of the head of the battery in the related art.

[0005] In a first aspect, an embodiment of the present application provides a battery, comprising:

[0006] A battery cell, the battery cell comprising a battery cell body and a tab, the battery cell body being provided with a top seal, a first pit and a second pit, the first pit and the second pit being respectively located on two opposite sides of the top seal, the tab comprising a first part and a second part connected to the first part, at least a portion of the first part being disposed in the top seal and electrically connected to the battery cell body;

[0007] A protection plate assembly, comprising a protection plate and components arranged on the protection plate, the protection plate being electrically connected to the second part, the protection plate and the first pit being located on the same side of the top seal, the components being located on a side of the protection plate close to the second pit, and the components being located on a side of the top seal away from the battery cell body.

[0008] In a second aspect, an embodiment of the present application further provides an electronic device, comprising the battery described above.

[0009] In an embodiment of the present application, the protective plate of the protective plate assembly and the first pit of the battery cell are located on the same side of the top seal of the battery cell, the components of the protective plate assembly are located on the side of the protective plate close to the second pit, and the components are located on the side of the top seal away from the battery cell body. In this way, by arranging the components on one side of the protective plate, the overall thickness of the protective plate assembly can be reduced, and the space on the side of the top seal away from the battery cell body can be effectively utilized to allow the components to avoid the top seal of the battery cell, so that the thickness of the part of the component that overlaps with the top seal in space does not participate in the stacking of the head thickness of the battery cell, thereby effectively reducing the thickness of the head of the battery cell, which is conducive to achieving thinning of the thickness of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is one of the three-dimensional diagrams of a battery disclosed in one embodiment of the present application;

[0011] Figure 2 This is the second stereoscopic diagram of a battery disclosed in an embodiment of the present application;

[0012] Figure 3 This is a third stereoscopic diagram of a battery disclosed in an embodiment of the present application;

[0013] Figure 4 This is a fourth three-dimensional diagram of a battery disclosed in an embodiment of the present application (hiding the protective member and the head adhesive tape);

[0014] Figure 5 This is the fifth stereoscopic diagram of a battery disclosed in an embodiment of the present application (hidden protective member, head adhesive tape and top sealing adhesive tape);

[0015] Figure 6 yes Figure 5 An enlarged view of part A in FIG.

[0016] Figure 7 This is the sixth stereoscopic diagram of a battery disclosed in an embodiment of the present application (hidden protective member, head adhesive tape and top sealing adhesive tape);

[0017] Figure 8 yes Figure 7 An enlarged view of part B in FIG.

[0018] Fig. 9 This is the seventh stereoscopic diagram of a battery disclosed in an embodiment of the present application (hiding the tearable part);

[0019] Fig.10 is a front view of a battery disclosed in one embodiment of the present application;

[0020] Fig.11 yes Fig.10 Sectional view along CC direction;

[0021] Fig.12is one of the three-dimensional diagrams of a battery disclosed in another embodiment of the present application;

[0022] Fig.13 This is a second three-dimensional diagram of a battery disclosed in another embodiment of the present application;

[0023] Fig.14 This is a third three-dimensional diagram of a battery disclosed in another embodiment of the present application (with the protective member hidden);

[0024] Fig.15 This is a fourth three-dimensional diagram of a battery disclosed in another embodiment of the present application (with the tear-off piece hidden);

[0025] Fig.16 is a front view of a battery disclosed in another embodiment of the present application;

[0026] Fig.17 yes Fig.16 Cross-sectional view along DD direction.

[0027] Description of reference numerals:

[0028] 100 - battery cell body; 110 - top seal; 120 - first pit; 130 - second pit;

[0029] 200-protection board assembly; 210-protection board; 220-components; 230-flexible connection board;

[0030] 240-connector; 250-fuse; 260-fuse protection; 300-ear;

[0031] 310-first part; 320-second part; 330-third part; 400-connecting piece;

[0032] 410-first connecting part; 420-second connecting part; 500-head adhesive tape; 600-protective member;

[0033] 700- component protection tape; 800- battery cell connector; 900- side tape; 1000- tail tape; 1100- easy-to-tear part; 1110- grab part; 1200- fixing part; 1300- insulating adhesive part. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0035] The terms "first", "second", "third", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", "third", etc. are generally a class, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0036] The battery and electronic device provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0037] refer to Figure 1-Figure 17 A battery provided in an embodiment of the present application may include a battery cell and a protection board assembly 200.

[0038] The battery cell may include a battery cell body 100 and a tab 300. The battery cell body 100 may be provided with a top seal 110, a first pit 120 and a second pit 130. The first pit 120 and the second pit 130 may be respectively located on two opposite sides of the top seal 110, and the tab 300 may include a first part 310 and a second part 320. The first part 310 is connected to the second part 320. At least part of the first part 310 may be arranged in the top seal 110 and may be electrically connected to the battery cell body 100.

[0039] It should be noted that the first pit 120 may be a deep pit of the battery cell body 100 , and the second pit 130 may be a shallow pit of the battery cell body 100 .

[0040] The protection plate assembly 200 may include a protection plate 210 and a component 220. The component 220 may be disposed on the protection plate 210. The protection plate 210 may be electrically connected to the second portion 320 to achieve electrical connection between the protection plate assembly 200 and the battery cell body 100. The protection plate 210 and the first pit 120 may be located on the same side of the top seal 110, the component 220 may be located on a side of the protection plate 210 close to the second pit 130, and the component 220 may be located on a side of the top seal 110 away from the battery cell body 100. In this way, by arranging the component 220 on one side of the protection plate 210, the overall thickness of the protection plate assembly 200 can be reduced, and the space on the side of the top seal 110 away from the battery body 100 can be effectively utilized, so that the component 220 avoids the top seal 110 of the battery cell, and the thickness of the part of the component 220 that overlaps with the top seal 110 in space does not participate in the stacking of the head thickness of the battery cell, thereby effectively reducing the thickness of the battery head, which is conducive to achieving the thickness reduction of electronic equipment, is suitable for ultra-thin batteries, and improves space utilization and energy density. Since the component 220 is located on the side of the protection plate 210 close to the second pit 130, the overall structure of the protection plate assembly 200 can be simple, the processing technology is simplified, and the cost is reduced.

[0041] In an optional embodiment of the present application, Figure 5 As shown, the protection plate 210 can be located on the side of the first pit 120 away from the battery body 100, the second part 320 can be located on the side of the top seal 110 away from the battery body 100, and the second part 320 can be electrically connected to the protection plate 210 through the connector 400. In this way, there is no need to bend the protection plate 210 into the first pit 120, so that the tab 300, the connector 400 and the component 220 can be located on the same side of the protection plate 210, and the tab 300 and the connector 400 can overlap with the top seal 110 and the second pit 130 in space, so that the thickness of the tab 300 and the connector 400 does not participate in the stacking of the thickness of the head of the battery, and the thickness of the battery head can be greatly reduced, which is suitable for ultra-thin batteries and improves space utilization and energy density.

[0042] In an optional embodiment, the second portion 320 may be arranged in parallel with the protection plate 210, and the second portion 320 may be arranged close to the protection plate 210. In this way, it is convenient to connect the second portion 320 with the protection plate 210, and the distance between the tab 300 and the protection plate 210 can be reduced, thereby facilitating the reduction of the thickness of the battery head.

[0043] In addition, the tab 300 may further include a third portion 330, the second portion 320 may be connected to the first portion 310 through the third portion 330, and the first portion 310 and the second portion 320 may be located on both sides of the third portion 330, respectively. In this way, it is convenient to connect the first portion 310 and the second portion 320. Optionally, an end of the second portion 320 close to the battery cell body 100 and an end of the first portion 310 away from the battery cell body 100 are connected through the third portion 330, so that the tab 300 can be prevented from interfering with the arrangement of other components.

[0044] In other embodiments, the second portion 320 and the protection plate 210 may be arranged to intersect each other, and the tab 300 may not include the third portion 330 , and the first portion 310 is directly connected to the second portion 320 .

[0045] In another optional embodiment of the present application, Fig.17 As shown, the protection plate 210 may be located in the first pit 120, the second portion 320 may be bent into the first pit 120, and the second portion 320 and the protection plate 210 may be electrically connected via the connector 400. In this way, the thickness of the stack at the first pit 120 may only include the thickness of the second portion 320, the thickness of the connector 400, and the thickness of the protection plate 210, which may significantly reduce the thickness of the battery head.

[0046] Of course, the second portion 320 may not be bent into the first groove 120 , and the second portion 320 may be located on a side of the top seal 110 away from the battery cell body 100 . The second portion 320 is electrically connected to the protection plate 210 via the connector 400 .

[0047] In an optional embodiment, an insulating adhesive 1300 may be provided between the second portion 320 and the top seal 110. In this way, the insulating adhesive 1300 can provide a stable connection to ensure that the protection plate assembly 200 is firmly adhered to the battery after the tab 300 is bent, which helps to prevent connection failure due to loosening or falling off during use, and enhance the stability and reliability of the battery packaging structure; it can also play an insulating protection role to avoid the risk of leakage between the second portion 320 and the outer surface of the top seal 110.

[0048] Here, the insulating adhesive 1300 can be a double-sided tape. The use of double-sided tape can simplify the manufacturing process of battery packaging. Compared with traditional welding methods, double-sided tape does not require additional welding processes and is more convenient and efficient, which is conducive to improving manufacturing efficiency and reducing production costs.

[0049] Of course, the insulating adhesive 1300 may not be disposed between the second portion 320 and the top seal 110 .

[0050] In an optional embodiment, the connecting member 400 may include a first connecting portion 410 and a second connecting portion 420 connected to the first connecting portion 410. The first connecting portion 410 may be fitted and connected to the second portion 320, and the second connecting portion 420 may be fitted and connected to the protective plate 210. This is beneficial to improving the stability of the connection between the second portion 320 and the protective plate 210.

[0051] In this embodiment, the connecting member 400 may be a U-shaped nickel sheet. Of course, the connecting member 400 may also be other conductive members.

[0052] In an optional embodiment of the present application, the battery cell may include at least two tabs 300, each tab 300 may be spaced apart along the length direction of the top seal 110, and the second portion 320 of each tab 300 may be electrically connected to the protection plate 210. In this way, the flow conducting cross-sectional area may be larger, large current charging and discharging may be adapted, fast charging may be achieved, and the internal resistance of the battery may be effectively reduced.

[0053] Optionally, the battery cell may include two electrode tabs 300 , or the battery cell may include three electrode tabs 300 or more than three electrode tabs 300 .

[0054] Of course, in other embodiments, the battery cell may include only one tab 300 .

[0055] In an optional embodiment, the tab 300 may include a negative tab and at least two positive tabs, and the negative tab and each positive tab may be spaced apart along the length direction of the top seal 110 to avoid contact between the negative tab and each positive tab to form a short circuit. In this way, by providing a negative tab and at least two positive tabs on the battery body 100, the effect of "at least two-way charging" can be achieved, which can effectively reduce impedance and heat loss, and speed up fast charging.

[0056] In addition, the negative tab and each positive tab may include a first portion 310 and a second portion 320 , and the second portion 320 of the negative tab and the second portion 320 of the positive tab may be electrically connected to the protection plate 210 through a connector 400 , respectively, to form a conductive circuit.

[0057] At least part of the first portion 310 of the negative electrode tab and the first portion 310 of the positive electrode tab can be disposed in the top seal 110 , and the first connecting portion 410 of each connector 400 can be respectively connected to the second portion 320 of the negative electrode tab and the second portion 320 of the positive electrode tab.

[0058] Optionally, the positive electrode tabs and the negative electrode tabs in each electrode tab 300 may be arranged alternately, so that the distance of electron conduction can be reduced.

[0059] In an optional embodiment of the present application, the battery may include at least two cells, each of which may be distributed along the length direction of the protection plate 210, and the length direction of the top seal 110 of each cell is parallel to the length direction of the protection plate 210, and the second portion 320 of the tab 300 of each cell may be electrically connected to the protection plate 210. In this way, the voltage and energy storage capacity of the battery may be increased, and the power requirements of different applications may be met.

[0060] In other embodiments, the battery may include only one battery cell.

[0061] Optionally, any two adjacent battery cells may be connected via a battery cell connector 800 , thereby improving the stability of the battery.

[0062] Further optionally, any two adjacent battery cells may be connected via two battery cell connectors 800 , and the two battery cell connectors 800 may be located on both sides of the battery cell, respectively, so that the connection strength between the two adjacent battery cells may be improved.

[0063] In this embodiment, the cell connector 800 may be insulating tape.

[0064] In an optional embodiment, the battery may further include a protective member 600, which may be coated on at least a portion of the protective plate assembly 200 and the top seal 110. In this way, the protective plate assembly 200 may be protected and fixed, which is beneficial to prolonging the service life of the battery and improving the stability of the battery. Of course, the battery may not include the protective member 600.

[0065] Here, when the protection plate 210 is located on the side of the first pit 120 away from the battery body 100, the protection member 600 can be covered outside the portion of the head tape 500 described below and the portion of the flexible connection plate 230 to protect and fix the flexible connection plate 230. When the protection plate is located in the first pit 120, the protection member 600 can be covered outside the head tape 500 described below to protect and fix the protection plate assembly 200.

[0066] Optionally, the battery may further include a fixing member 1200 , which may be used to connect to a battery compartment of an electronic device, and the fixing member 1200 may cover at least a portion of the battery cell body 100 .

[0067] Alternatively, the fixing member 1200 may cover at least a portion of the battery cell body 100 and at least a portion of the protective member 600 . Here, the fixing member 1200 may also cover at least a portion of the head tape 500 .

[0068] Optionally, the battery may further include head tape 500, tail tape 1000 and side tape 900, the head tape 500 may be coated on at least part of the tab 300 and the protection plate assembly 200, the tail tape 1000 may be coated on the tail of the battery body 100, and the side tape 900 may be coated on the side of the battery body 100, so that the battery can be provided with all-round protection. The battery may further include top seal tape, which may be coated on the outer surface of the top seal 110.

[0069] It should be noted that the tail of the cell body 100 may be a portion of the cell body 100 away from the top seal 110 , and the side of the cell body 100 may be a portion adjacent to the tail of the cell body 100 .

[0070] In an optional embodiment, the fixing member 1200 may be provided with a tear piece 1100, and a portion of the tear piece 1100 may protrude from the battery in a direction perpendicular to the thickness direction of the battery. In this way, it is convenient for operators to disassemble and assemble the battery. Specifically, the tear piece 1100 may be provided with a gripping portion 1110, and the gripping portion 1110 may protrude from the battery in a direction perpendicular to the thickness direction of the battery.

[0071] Of course, the fixing piece 1200 may not be provided with the tearable piece 1100 .

[0072] In an optional embodiment, the battery may further include a component protection tape 700, which is disposed on a side of the top seal 110 away from the first pit 120, and at least a portion of the component protection tape 700 is in contact with the component 220, so that the component protection tape 700 can protect and insulate the component 220, thereby preventing the component 220 from being affected by other components and external substances. Here, the component protection tape 700 is located inside the head tape 500 described above.

[0073] In this embodiment, the protection board assembly 200 may also include a flexible connection board 230 and a connector 240, a portion of the flexible connection board 230 may be connected to the protection board 210, another portion of the flexible connection board 230 protrudes from the protection board 210 in a direction away from the battery cell body 100, the connector 240 is arranged on the other portion of the flexible connection board 230, and the connector 240 is used to electrically connect to the mainboard of the electronic device to realize the electrical connection between the battery and the electronic device.

[0074] In order to avoid a short circuit between the component 220 and the battery body 100, which may affect the safety and reliability of the battery during charging and discharging, a short circuit protection structure is provided on the line between the tab 300 and the component 220. The short circuit protection structure may be connected to the protection plate 210, and at least part of the short circuit protection structure may be located in the first pit 120. The thickness of the short circuit protection structure is less than the thickness of the protection plate 210. Specifically, the short circuit protection structure may include a fuse 250, which may be connected to the line between the connector 400 and the component 220. The fuse 250 may use a thermal element to cut off the current path in the case of overload or short circuit, so as to achieve the function of short circuit protection.

[0075] Here, the battery may further include a fuse protector 260, which may be disposed around the fuse 250 and connected to the protection plate 210 and the top seal 110 to fix and protect the fuse 250. Specifically, the fuse protector 260 may be an insulating tape.

[0076] In an optional embodiment, when the protection plate 210 is located on the side of the first pit 120 away from the battery body 100, the top seal tape is wrapped on the outer surface of the top seal 110, the component protection tape 700 is attached to the component 220 of the protection plate assembly 200, and then the head tape 500 is covered on the outside of the protection plate assembly 200 and the component protection tape 700, so as to achieve the packaging of the battery head. Among them, the thickness of the component protection tape 700 can be 0.045-0.055mm, the thickness of the head tape 500 can be 0.045-0.055mm, here, the coefficient of the head tape 500 is 2, the thickness of the protection plate 210 can be 0.55-0.75mm, the thickness of the top seal tape can be 0.045-0.055mm, the thickness of the second pit 130 can be 0.6-1mm, and the thickness of the easy-tear tape can be 0.04-0.06mm. According to the extreme value method (WC), the normal value (Nom) of the thickness of the battery head can be 1.65mm, the tolerance can be -0.325 to +0.325mm, the maximum value of the thickness of the battery head can be 1.975mm, and the minimum value of the thickness of the battery head can be 1.325mm. According to the root mean square method (RSS), the normal value of the thickness of the battery head can be 1.7mm, the tolerance can be 0.224 to +0.224mm, the maximum value of the thickness of the battery head can be 1.924mm, and the minimum value of the thickness of the battery head can be 1.476mm.

[0077] For example, when the protection plate 210 is located on the side of the first groove 120 away from the battery body 100, the thickness of the second groove 130 is 1 mm, the thickness of the protection plate 210 is 0.65 mm, and according to the extreme value method, the maximum thickness of the battery head can be 2 mm.

[0078] When the protection plate 210 is located in the first groove 120, the top sealing tape is covered on the outer surface of the top seal 110, and then the protection plate 210 is bent into the first groove 120, and an insulating adhesive 1300 is arranged between the top seal 110 and the second part 320 of the pole tab 300 to fix the second part 320 of the pole tab 300 relative to the top seal 110, and then the head tape 500 is covered on at least part of the protection plate assembly 200 and the top sealing tape, and finally the protective component 600 is covered on the outside of the head tape 500, so as to realize the packaging of the battery head. Among them, the thickness of the protective member 600 can be 0.045-0.055mm, the thickness of the head tape 500 can be 0.045-0.055mm, here, the coefficient of the head tape 500 is 3, the thickness of the protective plate 210 can be 0.55-0.75mm, the sum of the thickness of the second part 320 of the pole ear 300 in the first groove 120 and the connecting member 400 is 0.3-0.5mm, the thickness of the insulating adhesive 1300 can be 0.09-0.11mm, the thickness of the top sealing tape can be 0.045-0.055mm, the thickness of the second groove 130 can be 0.6-1mm, and the thickness of the easy-tear sticker can be 0.04-0.06mm. According to the extreme value method (WC), the normal value (Nom) of the thickness of the battery head can be 2.2mm, the tolerance can be -0.44 to +0.44mm, the maximum value of the thickness of the battery head can be 2.64mm, and the minimum value of the thickness of the battery head can be 1.76mm. According to the root mean square method (RSS), the normal value of the thickness of the battery head can be 2.25mm, the tolerance can be 0.246 to +0.246mm, the maximum value of the thickness of the battery head can be 2.496mm, and the minimum value of the thickness of the battery head can be 2.004mm.

[0079] For example, when the protective plate 210 is located in the first pit 120, the sum of the thicknesses of the second portion 320 of the tab 300 and the connector 400 in the first pit 120 is 0.5 mm, the thickness of the second pit 130 is 1 mm, and the thickness of the protective plate 210 is 0.65 mm. According to the extreme value method, the maximum thickness of the battery head can be 2.5 mm; according to the root mean square method, the maximum thickness of the head is 2.496 mm.

[0080] Based on the battery provided in the embodiments of the present application, the embodiments of the present application further provide an electronic device, and the electronic device may include the battery described in any of the above embodiments.

[0081] The beneficial effects achieved by the electronic device provided in the embodiment of the present application are consistent with the beneficial effects achieved by the battery provided in the embodiment of the present application, and will not be described in detail here.

[0082] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A battery, characterized in that: include: A battery cell, the battery cell comprising a battery cell body (100) and a tab (300), the battery cell body (100) being provided with a top seal (110), a first pit (120) and a second pit (130), the first pit (120) and the second pit (130) being respectively located on two opposite sides of the top seal (110), the tab (300) comprising a first portion (310) and a second portion (320) connected to the first portion (310), at least a portion of the first portion (310) being arranged in the top seal (110) and being electrically connected to the battery cell body (100); A protection plate assembly (200) comprises a protection plate (210) and a component (220) arranged on the protection plate (210), wherein the protection plate (210) is electrically connected to the second portion (320), the protection plate (210) and the first pit (120) are both located on the same side of the top seal (110), the component (220) is located on a side of the protection plate (210) close to the second pit (130), and the component (220) is located on a side of the top seal (110) away from the battery cell body (100).

2. The battery according to claim 1, characterized in that The protection plate (210) is located on a side of the first groove (120) away from the battery cell body (100), and the second portion (320) is located on a side of the top seal (110) away from the battery cell body (100) and is electrically connected to the protection plate (210) via a connector (400).

3. The battery according to claim 2, characterized in that The second part (320) is parallel to the protection plate (210) and is arranged close to the protection plate (210), and the pole ear (300) also includes a third part (330), the second part (320) is connected to the first part (310) through the third part (330), and the first part (310) and the second part (320) are respectively located on both sides of the third part (330).

4. The battery according to claim 1, characterized in that The protection plate (210) is located in the first pit (120), and the second portion (320) is bent into the first pit (120) and is electrically connected to the protection plate (210) via a connector (400).

5. The battery according to claim 4, characterized in that An insulating adhesive (1300) is provided between the second portion (320) and the top seal (110).

6. The battery according to claim 1, characterized in that The battery cell comprises at least two pole tabs (300), and each pole tab (300) is arranged at intervals along the length direction of the top seal (110).

7. The battery according to claim 1, characterized in that The battery comprises at least two battery cells, each of which is distributed along the length direction of the protection plate (210), and the length direction of the top seal (110) of each of the battery cells is parallel to the length direction of the protection plate (210), and the second part (320) of the electrode tab (300) of each of the battery cells is electrically connected to the protection plate (210).

8. The battery according to claim 1, characterized in that The battery also includes: A protective member (600), the protective member (600) covering at least a portion of the protection plate assembly (200) and the top seal (110); A fixing member (1200) is used to connect to a battery compartment of an electronic device, wherein the fixing member (1200) covers at least a portion of the battery cell body (100), or the fixing member (1200) covers at least a portion of the battery cell body (100) and at least a portion of the protective member (600).

9. The battery according to claim 8, characterized in that The fixing member (1200) is provided with an easy-tear member (1100), and a portion of the easy-tear member (1100) protrudes from the battery in a direction perpendicular to the thickness direction of the battery.

10. An electronic device, characterized in that: A battery comprising any one of claims 1 to 9.

Images