Battery and electronic equipment

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a battery and electronic equipment. Comprising a battery cell, a connector and an insulating layer, the battery cell is provided with a positive plate and a negative plate which are respectively located at two opposite ends of the battery cell, the positive plate is connected with a positive electrode of the battery cell, the negative plate is connected with a negative electrode of the battery cell, the negative plate is connected with a first connecting line, and the positive plate is connected with a second connecting line; the connector is respectively connected with one ends of the first connecting line and the second connecting line far away from the battery core; the insulating layer wraps the battery cell, a negative electrode fixing area and a positive electrode fixing area are formed in the insulating layer, the negative electrode fixing area covers one end, connected with the negative plate, of the first connecting wire to fix the first connecting wire, and the positive electrode fixing area covers one end, connected with the positive plate, of the second connecting wire to fix the second connecting wire. The problem that in the prior art, a battery cell and a connector are connected through a connecting line, so that connection is not firm, and short circuit is prone to occurring is solved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and in particular to a battery and electronic device. Background Technology

[0002] Currently, with the increasing development of new energy vehicles and electronic products, the corresponding energy storage power supplies are also developing towards higher capacity, higher safety, and lighter weight. Lithium batteries, with their high capacity and other excellent characteristics, are widely used in electronic products.

[0003] Lithium batteries require electrical connection to external electronic devices during use to provide power. Typically, the battery is connected directly to the external electronic device via soldering. This soldering method makes the installation process between the battery and the electronic device time-consuming and labor-intensive.

[0004] To solve the above problems, a connector for external connection can be installed on the battery. The connector is connected to the battery cell via a connecting wire. However, this method of installation can easily lead to an unstable and weak connection between the cell and the connecting wire. Utility Model Content

[0005] The technical problem to be solved by this utility model embodiment is to provide a battery and electronic device to solve the problem in the prior art where connecting the battery cell and connector via connecting wires results in an unstable connection that is prone to short circuits.

[0006] In a first aspect, this utility model discloses a battery, comprising: a battery cell, a connector, and an insulating layer. The battery cell has a positive electrode and a negative electrode respectively located at opposite ends of the battery cell. The positive electrode is connected to the positive terminal of the battery cell, and the negative electrode is connected to the negative terminal of the battery cell. The negative electrode is connected to a first connecting wire, and the positive electrode is connected to a second connecting wire. The connector is connected to the ends of the first connecting wire and the second connecting wire away from the battery cell. The insulating layer covers the battery cell and has a negative electrode fixing region and a positive electrode fixing region formed therein. The negative electrode fixing region covers the end of the first connecting wire connected to the negative electrode to fix the first connecting wire, and the positive electrode fixing region covers the end of the second connecting wire connected to the positive electrode to fix the second connecting wire.

[0007] Optionally, the negative electrode includes a first connecting segment and a second connecting segment connected to each other. The first connecting segment is located on one side of the negative electrode of the battery cell, and the second connecting segment is located on the periphery of the battery cell. The positive electrode includes a third connecting segment and a fourth connecting segment. The third connecting segment is located at one end of the positive electrode of the battery cell, and the fourth connecting segment is located on the periphery of the battery cell. The insulating layer includes a curved layer of adhesive paper and an annular layer of adhesive paper stacked together. The curved layer of adhesive paper is located on the outer ring of the battery cell and between the second connecting segment and the battery cell, and between the fourth connecting segment and the battery cell. The annular layer of adhesive paper is surrounded by the battery cell and the outer ring of the curved layer of adhesive paper. The second connecting segment and the fourth connecting segment are located between the curved layer of adhesive paper and the annular layer of adhesive paper.

[0008] Optionally, the insulating layer further includes a top layer adhesive paper and a bottom layer adhesive paper connected to each other. The top layer adhesive paper is disposed on one end face of the battery cell where the negative electrode is located and covers the negative electrode. The bottom layer adhesive paper is disposed on one side of the battery cell where the positive electrode is located and covers the positive electrode and the other side of the battery cell.

[0009] Optionally, the outer ring of the bottom adhesive tape has a first bent section extending toward the top adhesive tape, the first bent section being pasted to the negative electrode fixing area and located outside the annular layer adhesive tape.

[0010] Optionally, the outer ring of the bottom adhesive tape is further provided with a second bent section extending toward the top adhesive tape. The second bent section is pasted to the positive electrode fixing area and is located outside the annular layer adhesive tape.

[0011] Optionally, the first bending segment and the second bending segment have overlapping areas.

[0012] Optionally, the first bending segment and the second bending segment do not have overlapping areas.

[0013] Optionally, the annular adhesive tape is provided with a clearance groove and a clearance hole, the first connecting wire passes through the clearance hole and exits the annular adhesive tape, and the second connecting wire passes through the clearance groove and exits the annular adhesive tape.

[0014] Optionally, the first bending section includes a clearance portion, a first covering portion, and a first connecting portion connected in sequence. The clearance portion is attached to the curved layer adhesive paper and has a gap with the clearance groove to prevent the second connecting line from passing through the clearance groove. The first covering portion is attached to the negative electrode fixing area, and the first connecting portion is located between the top layer adhesive paper and the battery cell.

[0015] Optionally, the second bending section includes a second covering part and a second connecting part that are connected to each other. The second covering part is attached to the positive electrode fixing area, and the second connecting part is located between the top adhesive paper and the battery cell.

[0016] Optionally, the second connecting portion is located between the top adhesive tape and the battery cell, and the first connecting portion is located between the second connecting portion and the battery cell.

[0017] Secondly, this utility model also discloses an electronic device, including an electronic device body and a battery as described above, wherein the battery is electrically connected to the electronic device body.

[0018] Compared with the prior art, the beneficial effects of the battery provided by this utility model embodiment are as follows: a negative electrode and a positive electrode are respectively arranged on opposite sides of the battery cell. The negative electrode is connected to a first connecting wire, and the positive electrode is connected to a second connecting wire. A connector connects the end of the first connecting wire away from the negative electrode and the end of the second connecting wire away from the positive electrode, enabling the battery to be connected to an external device through the first connecting wire, the second connecting wire, and the connector. An insulating layer is provided on the outer surface of the battery cell. The insulating layer not only provides insulation and protection for the battery cell, but also fixes and limits the end of the first connecting wire connected to the negative electrode through the negative electrode fixing area in the insulating layer, and fixes and limits the end of the second connecting wire connected to the positive electrode through the positive electrode fixing area. This can improve the fixing and limiting effect of the first and second connecting wires to a certain extent, ensuring the stability of the battery during use and improving the battery's lifespan. By fixing and protecting the first and second connecting wires through the insulating layer, the traditional welding connection method can be replaced, reducing production costs and improving battery safety. Attached Figure Description

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the battery provided in an embodiment of the present utility model;

[0021] Figure 2 This is an exploded schematic diagram of the battery provided in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the bottom adhesive paper, the ring-shaped adhesive paper, and the curved adhesive paper provided in the embodiments of this utility model.

[0023] The labels for the attached figures are as follows:

[0024] 1000, Battery; 100, Cell; 101, Negative electrode; 1011, First connecting segment; 1012, Second connecting segment; 1013, First connecting wire; 102, Positive electrode; 1021, Third connecting segment; 1022, Fourth connecting segment; 1023, Second connecting wire; 200, Connector; 300, Insulating layer; 301, Top layer adhesive tape; 3021, Annular layer adhesive tape; 30211, Clearance groove; 30212, Clearance hole; 3022, Curved layer adhesive tape; 303, Bottom layer adhesive tape; 3031, First bending segment; 30311, Clearance portion; 30312, First covering portion; 30313, First connecting portion; 3032, Second bending segment; 30321, Second covering portion; 30322, Second connecting portion; 304, Negative electrode fixing area; 305, Positive electrode fixing area. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] This utility model embodiment provides a battery 1000, such as Figure 1-3 As shown, the battery 1000 includes: an insulating layer 300, a battery cell 100, and a connector 200. The battery cell 100 has a positive electrode 102 and a negative electrode 101 located at opposite ends of the battery cell 100. The positive electrode 102 is connected to the positive terminal of the battery cell 100, and the negative electrode 101 is connected to the negative terminal of the battery cell 100. The negative electrode 101 is connected to a first connecting line 1013, and the positive electrode 102 is connected to a second connecting line 1023. The connector 200 is connected to the first connecting line 1023. 013 and the second connecting line 1023 are located away from the end of the battery cell 100; the insulating layer 300 covers the battery cell 100, and a negative electrode fixing region 304 and a positive electrode fixing region 305 are formed in the insulating layer 300. The negative electrode fixing region 304 covers the end of the first connecting line 1013 that is connected to the negative electrode plate 101 to fix the first connecting line 1013. The positive electrode fixing region 305 covers the end of the second connecting line 1023 that is connected to the positive electrode plate 102 to fix the second connecting line 1023.

[0027] A negative electrode 101 and a positive electrode 102 are respectively disposed on opposite sides of the battery cell 100. The negative electrode 101 is connected to a first connecting line 1013, and the positive electrode 102 is connected to a second connecting line 1023. A connector 200 connects the end of the first connecting line 1013 away from the negative electrode 101 and the end of the second connecting line 1023 away from the positive electrode 102, so that the battery 1000 can be connected to an external device through the first connecting line 1013, the second connecting line 1023, and the connector 200. An insulating layer 300 is provided on the outer surface of the battery cell 100. The insulating layer 300 serves two purposes: firstly, it provides insulation and protection for the battery cell 100; secondly, it secures and limits one end of the first connecting line 1013 connected to the negative electrode 101 via the negative electrode fixing area 304, and it secures and limits one end of the second connecting line 1023 connected to the positive electrode 1012 via the positive electrode fixing area 305. This enhances the securing and limiting effect on the first connecting line 1013 and the second connecting line 1023, ensuring the stability of the battery 1000 during use and extending its lifespan. By using the insulating layer 300 to secure and protect the first connecting line 1013 and the second connecting line 1023, the traditional welding connection method can be replaced, reducing production costs and improving the safety of the battery 1000.

[0028] The connector 200 is connected to the battery cell 100 via the first connecting line 1013 and the second connecting line 1023 respectively. The connector 200 can be electrically connected to external devices, ensuring a stable and reliable connection.

[0029] Specifically, by fixing the first connecting line 1013 through the negative electrode fixing area 304 and fixing the second connecting line 1023 through the positive electrode fixing area 305, the possibility of displacement and shaking of the first connecting line 1013 and the second connecting line 1023 can be reduced, ensuring stability during use and thus extending the service life of the battery 1000.

[0030] refer to Figure 2The negative electrode 101 includes a first connecting segment 1011 and a second connecting segment 1012 connected to each other. The first connecting segment 1011 is located at one end of the negative electrode of the cell 100, and the second connecting segment 1012 is located on the periphery of the cell 100. The positive electrode 102 includes a third connecting segment 1021 and a fourth connecting segment 1022. The third connecting segment 1021 is located at one end of the positive electrode of the cell 100, and the fourth connecting segment 1022 is located on the periphery of the cell 100. The insulating layer 300 includes laminated... The curved layer adhesive tape 3022 and the annular layer adhesive tape 3021 are provided. The curved layer adhesive tape 3022 is provided on the outer ring of the battery cell 100 and is located between the second connecting section 1012 and the battery cell 100, and between the fourth connecting section 1022 and the battery cell 100. The annular layer adhesive tape 3021 is provided around the battery cell 100 and the outer ring of the curved layer adhesive tape 3022. The second connecting section 1012 and the fourth connecting section 1022 are located between the curved layer adhesive tape 3022 and the annular layer adhesive tape 3021.

[0031] The negative electrode 101 includes a first connecting segment 1011 and a second connecting segment 1012. The first connecting segment 1011 is connected to the negative electrode region of the battery cell 100, and the second connecting segment 1012 is located on the periphery of the battery cell 100 to facilitate connection with the first connecting line 1013. Similarly, the positive electrode 102 includes a third connecting segment 1021 and a fourth connecting segment 1022. The third connecting segment 1021 is disposed in the positive electrode region of the battery cell 100, and the fourth connecting segment 1022 is located on the periphery of the battery cell 100 to facilitate connection with the second connecting line 1023.

[0032] Therefore, the curved adhesive tape 3022 in the insulating layer 300 is disposed on the outer ring of the cell 100, and is disposed between the second connecting section 1012 and the cell 100, and between the fourth connecting section 1022 and the cell 100. That is, the curved adhesive tape 3022 is disposed on the outer ring of the cell 100, and does not shield or cover the positive electrode 1012 and the negative electrode 101. This facilitates the connection of the positive electrode 1012 to the second connecting line 1023, and the connection of the negative electrode 101 to the first connecting line 1013. The annular layer of adhesive tape 3021 is disposed on the outer ring of the cell 100 and the curved layer of adhesive tape 3022, which means that the annular layer of adhesive tape 3021 is not only disposed on the outside of the curved layer of adhesive tape 3022, but also covers and shields the second connecting section 1012 and the fourth connecting section 1022, so as to achieve further insulation protection and cross-fixation for the positive electrode 1012 and the second connecting line 1023, as well as the negative electrode 101 and the first connecting line 1013. The above arrangement allows the positive electrode 1012 and the negative electrode 101 to be positioned between the annular layer of adhesive paper 3021 and the curved layer of adhesive paper 3022. This achieves insulation protection and fixed positioning of the end of the first connecting line 1013 connected to the negative electrode 101 and the end of the second connecting line 1023 connected to the positive electrode 1012. This provides effective insulation and isolation for the area, while also fixing and positioning the first connecting line 1013 and the second connecting line 1023, improving the safety of the battery 1000 and reducing the risk of short circuits.

[0033] It should be noted that the curved layer adhesive tape 3022 is provided at least in the area where the second connecting section 1012 and the fourth connecting section 1022 are located on the outer ring of the battery cell 100, while the annular layer adhesive tape 3021 is provided around the outer ring of the battery cell 100 and the curved layer adhesive tape 3022.

[0034] refer to Figure 2 The insulating layer 300 also includes a top layer adhesive tape 301 and a bottom layer adhesive tape 303 that are connected to each other. The top layer adhesive tape 301 is disposed on one end face of the battery cell 100 where the negative electrode plate 101 is disposed, and covers the negative electrode plate 101. The bottom layer adhesive tape 303 is disposed on one end face of the battery cell 100 where the positive electrode plate 102 is disposed, and covers the positive electrode plate 102.

[0035] The top layer adhesive tape 301 is used to insulate and protect the side of the battery cell 100 where the negative electrode 101 is located, and the bottom layer adhesive tape 303 is used to insulate and protect the side of the battery cell 100 where the positive electrode 102 is located. The bottom layer adhesive tape 303 covers the side of the battery cell 100 where the positive electrode 102 is located, and the top layer adhesive tape 301 and the bottom layer adhesive tape 303 are connected to each other through the annular layer adhesive tape 3021 and the curved layer adhesive tape 3022, so that a complete insulating layer 300 can be formed to insulate and protect the entire battery cell 100, effectively isolating the positive electrode 102 and the negative electrode 101 from contact with the battery cell 100, improving the overall insulation performance of the battery 1000 and reducing the risk of short circuit.

[0036] refer to Figure 2 and Figure 3 The outer ring of the bottom adhesive tape 303 is provided with a first bent section 3031 extending toward the top adhesive tape 301. The first bent section 3031 is pasted to the negative electrode fixing area 304, and the first bent section 3031 is located outside the annular layer adhesive tape 3021.

[0037] A first bending section 3031 is provided on the outer ring of the bottom adhesive tape 303. The first bending section 3031 is used to cover the negative electrode fixing area 304, thereby further protecting the end of the first connecting line 1013 connected to the negative electrode sheet 101, so as to ensure the stability of the battery 1000 structure, ensure the connection between the first connecting line 1013 and the cell 100 is firm, and reduce the possibility of loosening or displacement.

[0038] The curved adhesive tape 3022 and the annular adhesive tape 3021 provide initial protection and fixation for the negative electrode 101 and the first connecting line 1013. The first bent section 3031 covers the negative electrode fixing area 304, and together with the annular adhesive tape 3021, it further protects the negative electrode 101 and the first connecting line 1013 within the negative electrode fixing area 304, extending their service life and reducing the risk of damage.

[0039] On the other hand, attaching the first bent section 3031 to the negative electrode fixing area 304 helps improve the insulation performance of the negative electrode fixing area 304, reduces the possibility of short circuit, and enhances the safety of the battery 1000.

[0040] refer to Figure 2 and Figure 3 The outer ring of the bottom adhesive tape 303 is also provided with a second bent section 3032 extending toward the top adhesive tape 301. The second bent section 3032 is pasted to the positive electrode fixing area 305 and is located outside the annular layer adhesive tape 3021.

[0041] The curved adhesive tape 3022 and the annular adhesive tape 3021 protect and secure the second connecting line 1023 and the positive electrode 102. The second bent section 3032 is pasted on the positive electrode fixing area 305 to further protect the end where the second connecting line 1023 and the positive electrode 102 are connected, ensuring that the positive electrode 102 and the second connecting line 1023 are firmly connected within the positive electrode fixing area 305, reducing the possibility of loosening or displacement.

[0042] Among them, the curved layer adhesive paper 3022 and the ring layer adhesive paper 3021, as well as the second bending section provided on the positive electrode fixing area 305, can effectively protect the positive electrode sheet 1012 and the second connecting line 1023 in the positive electrode fixing area 305, extend their service life and reduce the risk of damage.

[0043] On the other hand, attaching the second bent section to the positive electrode fixing area 305 helps to improve the insulation performance of the positive electrode fixing area 305, reduce the possibility of short circuit, and enhance the overall safety of the battery 1000.

[0044] In an optional embodiment of this application, the first bending segment 3031 and the second bending segment 3032 have overlapping areas. This allows the first bending segment 3031 to cover the negative electrode fixing area 304, protecting the negative electrode sheet 101 and the first connecting wire 1013 within the negative electrode fixing area 304. Simultaneously, the second bending segment 3032 is adhered to the positive electrode fixing area 305, ensuring a secure connection between the positive electrode sheet 102 and the second connecting wire 1023 within the positive electrode fixing area 305, and providing protection. The overlapping areas of the first bending segment 3031 and the second bending segment 3032 enhance the adhesion, reduce the risk of delamination, and improve stability during use.

[0045] In another optional embodiment of this application, the first bending segment 3031 and the second bending segment 3032 do not have overlapping areas. In this way, the first bending segment 3031 only needs to cover the negative electrode fixing area 304, and the second bending segment 3032 only needs to be pasted on the positive electrode fixing area 305. When the negative electrode fixing area 304 or the positive electrode fixing area 305 needs to be disassembled and maintained, the first bending segment 3031 and the second bending segment 3032 do not affect each other, which helps to improve the convenience of operation.

[0046] refer to Figure 2 and Figure 3 The annular layer adhesive tape 3021 is provided with a clearance groove 30211 and a clearance hole 30212. The first connecting line 1013 passes through the clearance hole 30212 and exits the annular layer adhesive tape 3021. The second connecting line 1023 passes through the clearance groove 30211 and exits the annular layer adhesive tape 3021.

[0047] A clearance groove 30211 and a clearance hole 30212 are provided on the annular layer adhesive tape 3021. The clearance groove 30211 is mainly used to avoid the second connecting line 1023. After the end of the second connecting line 1023 connected to the positive electrode plate 1012 is covered by the annular layer adhesive tape 3021 and the curved layer adhesive tape 3022, the second connecting line 1023 needs to pass through the clearance groove 30211 on the annular layer adhesive tape 3021 to connect with the connector 200. Similarly, the clearance hole 30212 is used to facilitate the end of the first connecting line 1013 away from the negative electrode plate 101 to pass through, facilitating the connection of the first connecting line 1013 with the connector 200.

[0048] On the other hand, the first connecting line 1013 passes through the clearance hole 30212 and the second connecting line 1023 passes through the clearance groove 30211, which distinguishes and regulates the routing and setting direction of the first connecting line 1013 and the second connecting line 1023, avoids the problem of line crossing between the first connecting line 1013 and the second connecting line 1023, reduces interference, and improves the stability and performance of the battery 1000.

[0049] Specifically, the design of the clearance groove 30211 and clearance hole 30212 can help optimize the layout of the connecting wires, making the first connecting wire 1013 and the second connecting wire 1023 more orderly, while reducing interference between the first connecting wire 1013 and the second connecting wire 1023, reducing the risk of short circuit, and improving the safety of the battery 1000.

[0050] refer to Figure 2 and Figure 3 The first bending section 3031 includes a clearance portion 30311, a first covering portion 30312, and a first connecting portion 30313 connected in sequence. The clearance portion 30311 is attached to the curved layer adhesive paper 3022 so that there is a gap between it and the clearance groove 30211 to allow the second connecting line 1023 to pass through the clearance groove 30211. The first covering portion 30312 is attached to the negative electrode fixing area 304. The first connecting portion 30313 is located between the top layer adhesive paper 301 and the battery cell 100.

[0051] The avoidance portion 30311 in the first bending section 3031 is provided on the curved layer adhesive paper 3022, and the avoidance groove 30211 is provided on the annular layer adhesive paper 3021. Because the annular layer adhesive paper 3021 covers the outside of the positive electrode 102 and the negative electrode 101, a certain gap is provided between the annular layer adhesive paper 3021 and the curved layer adhesive paper 3022 at the positive electrode fixing area 305 and the negative electrode fixing area 304 to avoid the second connecting line 1023 from passing through the avoidance groove 30211, thus avoiding any impact or interference on the second connecting line 1023. The first covering portion 30312 is attached to the negative electrode fixing area 304 to achieve good fixation and insulation protection for the end of the connection between the first connecting line 1013 and the negative electrode 101, thereby improving the safety and stability of the battery 1000.

[0052] The first connecting part 30313 is disposed between the top layer adhesive tape 301 and the battery cell 100. The top layer adhesive tape 301 can fix the first connecting part 30313 to a certain extent, further improving the limiting and fixing effect of the first bending section 3031, so that the first bending section 3031 will not be displaced or fall off during actual use, thereby improving the reliability of the battery 1000.

[0053] refer to Figure 2 and Figure 3 The second bending section 3032 includes a second covering part 30321 and a second connecting part 30322 that are connected to each other. The second covering part 30321 is attached to the positive electrode fixing area 305, and the second connecting part 30322 is located between the top adhesive paper 301 and the battery cell 100.

[0054] The provision of the second cover 30321 helps to protect the positive electrode fixing area 305, reduces the impact and damage of the external environment on the positive electrode fixing area 305, extends the life of the positive electrode fixing area 305, and further strengthens the protection and fixing effect on the end of the second connecting line 1023 connected to the positive electrode plate 102, so as to improve the durability and reliability of the battery 1000.

[0055] The second connection part 30322 is located between the top adhesive tape 301 and the battery cell 100. This design can ensure the stable connection between the second connection part 30322 and the battery cell 100, reduce the risk of loosening or disconnection, and improve the stability of the entire battery 1000.

[0056] Specifically, the provision of the second cover portion 30321 and the second connection portion 30322 helps to strengthen insulation protection, reduce the risk of short circuits, and improve the safety of the battery 1000.

[0057] refer to Figure 2 and Figure 3The second connecting part 30322 is located between the top adhesive tape 301 and the battery cell 100, and the first connecting part 30313 is located between the second connecting part 30322 and the battery cell 100.

[0058] The second connecting portion 30322 on the second bending section 3032 is disposed between the top layer adhesive tape 301 and the battery cell 100, and the first connecting portion 30313 of the first bending section 3031 is disposed between the second connecting portion 30322 and the battery cell 100. That is, the first connecting portion 30313 is disposed between the first connecting portion 30313 that has been covered by the top layer adhesive tape 301 and the battery cell 100. This cross-layer covering method can further enhance the protection and fixation of the negative electrode fixing area 304 and the positive electrode fixing area 305 by the first bending section 3031 and the second bending section 3032 respectively, and enhance the protection effect of the insulation layer 300 on the end of the first connecting line 1013 connected to the negative electrode and the end of the second connecting line 1023 connected to the positive electrode.

[0059] Specifically, by using the above-mentioned hierarchical connection method, the risk of loosening or disconnection of the first connection part 30313 and the second connection part 30322 can be reduced, thereby improving the connection stability of the entire battery 1000.

[0060] On the other hand, the positioning of the second connecting part 30322 and the first connecting part 30313 helps to strengthen insulation protection. This design can reduce the occurrence of short circuits or other safety problems and improve the safety of battery 1000.

[0061] This utility model embodiment also provides an electronic device, which includes an electronic device body and the battery 1000 in the foregoing embodiment, and the battery 1000 is electrically connected to the electronic device body.

[0062] This electronic device includes the same structure and beneficial effects as the battery 1000 in the foregoing embodiments. The structure and beneficial effects of the battery 1000 have been described in detail in the foregoing embodiments and will not be repeated here.

[0063] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A battery, characterized by, The application relates to a battery cell, which comprises the following parts: an electric core, which is provided with a positive electrode sheet and a negative electrode sheet at opposite ends of the electric core respectively, the positive electrode sheet is connected with a positive electrode of the electric core, the negative electrode sheet is connected with a negative electrode of the electric core, the negative electrode sheet is connected with a first connecting wire, and the positive electrode sheet is connected with a second connecting wire; a connector, which is connected with one end of the first connecting wire and the second connecting wire away from the electric core respectively; an insulation layer, which covers the electric core, the insulation layer is provided with a negative electrode fixing area and a positive electrode fixing area, the negative electrode fixing area covers one end of the first connecting wire connected with the negative electrode sheet, so as to fix the first connecting wire, and the positive electrode fixing area covers one end of the second connecting wire connected with the positive electrode sheet, so as to fix the second connecting wire.

2. The battery of claim 1, wherein, The negative electrode sheet comprises a first connecting section and a second connecting section which are connected with each other, the first connecting section is arranged at one end of the negative electrode of the electric core, and the second connecting section is arranged at a circumferential side of the electric core; the positive electrode sheet comprises a third connecting section and a fourth connecting section which are connected with each other, the third connecting section is arranged at one end of the positive electrode of the electric core, and the fourth connecting section is arranged at a circumferential side of the electric core; the insulation layer comprises a curved layer of adhesive paper and a ring layer of adhesive paper which are arranged in layers, the curved layer of adhesive paper is arranged at an outer ring of the electric core and is located between the second connecting section and the electric core and between the fourth connecting section and the electric core, and the ring layer of adhesive paper is arranged around the electric core and the outer ring of the curved layer of adhesive paper, and the second connecting section and the fourth connecting section are located between the curved layer of adhesive paper and the ring layer of adhesive paper.

3. The battery of claim 2, wherein, The insulation layer further comprises a top layer of adhesive paper and a bottom layer of adhesive paper which are connected with each other, the top layer of adhesive paper is arranged on one end surface of the electric core provided with the negative electrode sheet and covers the negative electrode sheet, and the bottom layer of adhesive paper is arranged on one end surface of the electric core provided with the positive electrode sheet and covers the positive electrode sheet.

4. The battery of claim 3, wherein, An outer ring of the bottom layer of adhesive paper is provided with a first bending section which extends towards the top layer of adhesive paper, the first bending section is pasted to the negative electrode fixing area and is located outside the ring layer of adhesive paper.

5. The battery of claim 4, wherein, The outer ring of the bottom layer of adhesive paper is further provided with a second bending section which extends towards the top layer of adhesive paper, the second bending section is pasted to the positive electrode fixing area and is located outside the ring layer of adhesive paper.

6. The battery of claim 5, wherein, The first bending section and the second bending section have an overlapping area.

7. The battery of claim 5, wherein, The first bending section and the second bending section do not have an overlapping area.

8. The battery of claim 5, wherein, The ring layer of adhesive paper is provided with an avoiding groove and an avoiding hole, the first connecting wire passes through the avoiding hole and out of the ring layer of adhesive paper, and the second connecting wire passes through the avoiding groove and out of the ring layer of adhesive paper.

9. The battery of claim 8, wherein, The first bending section comprises an avoiding part, a first covering part and a first connecting part which are connected in sequence, the avoiding part is pasted to the curved layer of adhesive paper and has a spacing with the avoiding groove, so as to avoid the second connecting wire from passing through the avoiding groove, the first covering part is pasted to the negative electrode fixing area, and the first connecting part is located between the top layer of adhesive paper and the electric core.

10. The battery of claim 9, wherein, The second bending section comprises a second covering part and a second connecting part connected with each other, the second covering part is attached to the positive electrode fixing area, and the second connecting part is located between the top layer of adhesive paper and the battery cell.

11. The battery of claim 10, wherein, The second connecting part is located between the top layer of adhesive paper and the battery cell, and the first connecting part is located between the second connecting part and the battery cell.

12. An electronic device, comprising: The electronic device comprises an electronic device body and a battery according to any one of claims 1-11, and the battery is electrically connected with the electronic device body.

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