Battery and electronic equipment

Abstract

The utility model discloses a battery and electronic equipment, and the battery comprises a battery cell which is provided with a tab; the protection plate assembly is connected with the top end of the battery cell and is provided with a conducting strip, and the conducting strip is connected with the tab; two ends of the head adhesive tape are respectively connected with the front and back surfaces of the battery cell, the head adhesive tape is wound on the periphery of the protection plate assembly, and at least one layer of protection glue is arranged at the position, corresponding to the tab, of the head adhesive tape. At least one layer of protection glue is arranged at the position, corresponding to the tab, of the head adhesive tape, so that the part, corresponding to the tab, of the head adhesive tape is of a structure with at least two layers, equivalently, the thickness of the head adhesive tape is increased at the position, corresponding to the tab, of the head adhesive tape, and the anti-puncture strength of the head adhesive tape is improved; when the tab is in contact with the head adhesive tape, the tab can be prevented from completely cutting the head adhesive tape, so that the risk that the head adhesive tape is cut can be reduced, the tab and the protection plate assembly are better insulated, and the risk that the tab is conducted with a cabin of the electronic equipment and short circuit occurs is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery structure, and more specifically, to a battery. In addition, the utility model also relates to an electronic device including the battery. Background Art

[0002] Batteries, as core components that provide energy, play a vital role in electronic devices. They consist of a cell and a protective plate assembly. The cell's tabs are electrically connected to the conductive sheet of the protective plate assembly, which is located at the cell's tab end. After the protective plate assembly is connected to the cell, a header tape is applied to the cell's tab end, wrapping around the periphery of the protective plate assembly.

[0003] However, after the protective plate assembly is connected to the battery cell, the tabs may extend beyond the edge of the protective plate assembly and come into contact with the header tape. Because the tabs are very thin, their ends or bends are very sharp, like a blade, which can easily cut through the header tape, posing a risk of electrical contact between the tabs and the electronic device's housing, causing a short circuit.

[0004] Therefore, how to prevent the tab from cutting the head tape is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, an object of the present invention is to provide a battery which can prevent its tabs from cutting its head tape and has good safety.

[0006] Another object of the present invention is to provide an electronic device comprising the battery, which can prevent the battery tabs from cutting the battery head tape, thereby improving safety.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A battery comprising:

[0009] The battery cell is provided with a tab;

[0010] A protection plate assembly is connected to the top of the battery cell and is provided with a conductive sheet, wherein the conductive sheet is connected to the tab;

[0011] The head tape has two ends connected to the front and back sides of the battery cell respectively and is wound around the outer periphery of the protection plate assembly. The head tape is provided with at least one layer of protective glue at the position corresponding to the tab.

[0012] Optionally, a top sealing edge is provided at the top of the battery cell, and the top sealing edge includes a first bending portion and a flat portion, the flat portion is parallel to the end face of the battery cell, the protective plate assembly is provided on a side of the flat portion away from the battery cell, and the thickness direction of the protective plate assembly is along the height direction of the battery cell.

[0013] Optionally, the tab includes a second bent portion and a connecting portion, the conductive sheet is formed with a U-shaped groove, and the connecting portion is arranged in the U-shaped groove;

[0014] The protective glue corresponds to the second bending portion.

[0015] Optionally, the head tape includes a cell connection portion connected to the battery cell, and the protective glue extends from one end along the height direction of the battery cell to a first boundary of the cell connection portion close to the protective glue or has a distance from the first boundary.

[0016] Optionally, the head tape includes a top surface connecting portion connected to the top surface of the protective plate assembly, and the protective glue extends from one end along the height direction of the battery cell to a second boundary of the top surface connecting portion close to one side of the protective glue or has a distance from the second boundary.

[0017] Optionally, the protective adhesive is provided on the inner side of the head adhesive tape.

[0018] Optionally, along a direction parallel to the width of the battery core, the length of the protective adhesive is equal to or less than the length of the head tape.

[0019] Optionally, a first double-sided tape is provided between the protective plate assembly and the battery cell, the number of the conductive sheets is at least two, a first flexible buffer is provided in the gap between any two of the conductive sheets, one side of the first flexible buffer is connected to the first double-sided tape, and the other side is provided with a second double-sided tape, and the second double-sided tape is connected to the protective plate assembly.

[0020] Optionally, the thickness of the first flexible buffer is the same as the thickness of the conductive sheet, or the thickness of the first flexible buffer is greater than the thickness of the conductive sheet.

[0021] Optionally, the protective plate assembly includes a protective plate and a flexible circuit board, the flexible circuit board includes a first end and a second end with a preset distance; the battery further includes:

[0022] fixing glue, connected to one side of the first end portion and one side of the second end portion facing away from the protective plate;

[0023] The second flexible buffer is provided between the first end portion and the second end portion and is connected to the fixing glue and the protection plate respectively.

[0024] Optionally, the thickness of the second flexible buffer is the same as the thickness of the flexible circuit board, or the thickness of the second flexible buffer is greater than the thickness of the flexible circuit board.

[0025] Optionally, along a direction perpendicular to a line connecting the first end portion and the second end portion, a length of the second flexible buffer is less than or equal to a length of the fixing glue.

[0026] An electronic device comprises any one of the above batteries.

[0027] The battery provided by the utility model has the following beneficial effects:

[0028] At least one layer of protective tape is set at the position of the head tape corresponding to the pole ear, so that the part of the head tape corresponding to the pole ear becomes a double-layer structure or at least a three-layer structure, which is equivalent to increasing the thickness of the head tape at the position of the head tape corresponding to the pole ear, thereby improving the puncture resistance of the head tape. In this way, even if the pole ear exceeds the edge of the protection plate assembly and contacts the head tape, the pole ear can avoid completely cutting the head tape. That is, this solution can reduce the risk of the head tape being cut, better insulate the pole ear and the protection plate assembly, and reduce the risk of the pole ear being connected to the machine compartment of the electronic device and short circuiting.

[0029] The electronic equipment provided by the utility model comprises the above-mentioned battery and has the same beneficial effects as the above-mentioned battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0031] Figure 1 A side view of a battery provided in a specific embodiment of the present utility model;

[0032] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0033] Figure 3 A schematic diagram showing that the two ends of the protective adhesive extend to the two ends of the head tape in a direction parallel to the width of the battery cell;

[0034] Figure 4 Schematic diagram showing that there is a distance between both ends of the protective adhesive and both end edges of the head tape in a direction parallel to the width of the battery cell;

[0035] Figure 5 for Figure 1 a front view of the battery shown;

[0036] Figure 6 for Figure 5 A partial enlarged view of B in the middle;

[0037] Figure 7 This is a side view of a first flexible buffer provided at the gap between the two conductive sheets corresponding to the first double-sided adhesive tape;

[0038] Figure 8 for Figure 7 A top view of

[0039] Figure 9 Schematic diagram of the stacked structure of the first double-sided tape, the first flexible buffer and the second double-sided tape;

[0040] Figure 10 This is a schematic diagram of a second flexible buffer provided at the gap between the first end portion and the second end portion of the flexible circuit board corresponding to the fixing glue.

[0041] Reference numerals:

[0042] 1-battery cell; 11-ear; 111-second bending part; 112-connecting part; 12-top sealing edge; 121-first bending part; 122-flat part; 2-protective plate assembly; 21-conductive sheet; 22-protective plate; 23-flexible circuit board; 231-first end; 232-second end; 3-head tape; 31-protective glue; 32-battery cell connecting part; 33-top surface connecting part; 4-first double-sided tape; 41-first double-sided tape base material; 42-first double-sided tape top glue; 43-first double-sided tape bottom glue; 5-first flexible buffer; 6-second double-sided tape; 7-fixing glue; 8-second flexible buffer. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0044] The core of the utility model is to provide a battery that can prevent its tabs from cutting its head tape, thereby improving safety. Another core of the utility model is to provide an electronic device including the above-mentioned battery, which can prevent the tabs of the battery from cutting its head tape, thereby improving safety.

[0045] Please refer to Figure 1 and Figure 2An embodiment of the utility model provides a battery, including a battery cell 1, a protective plate assembly 2 and a head tape 3, the battery cell 1 is provided with a pole ear 11; the protective plate assembly 2 is connected to the top of the battery cell 1, and the protective plate assembly 2 is provided with a conductive sheet 21, and the conductive sheet 21 is connected to the pole ear 11; the two ends of the head tape 3 are respectively connected to the front and back sides of the battery cell 1, and are wound around the outer periphery of the protective plate assembly 2, and at least one layer of protective glue 31 is provided at the position of the head tape 3 corresponding to the pole ear 11.

[0046] That is to say, the embodiment of the present invention sets at least one layer of protective tape 31 at the position of the head tape 3 corresponding to the pole ear 11, so that the part of the head tape 3 corresponding to the pole ear 11 becomes a double-layer structure or at least a three-layer structure, which is equivalent to increasing the thickness of the head tape 3 at the position of the head tape 3 corresponding to the pole ear 11, thereby improving the puncture resistance of the head tape 3. In this way, even if the pole ear 11 exceeds the edge of the protective plate assembly 2 and contacts the head tape 3, the pole ear 11 can be prevented from completely cutting the head tape 3. That is, this scheme can reduce the risk of the head tape 3 being cut, better insulate the pole ear 11 and the protective plate assembly 2, and reduce the risk of the pole ear 11 being connected to the machine compartment of the electronic device and short circuiting.

[0047] It should be noted that the focus of this embodiment is to ensure that the protective adhesive 31 is provided at the position of the head tape 3 corresponding to the pole tab 11. The portion of the head tape 3 other than the position corresponding to the pole tab 11 may or may not have the protective adhesive 31. It is understandable that when the portion of the head tape 3 other than the position corresponding to the pole tab 11 also has the protective adhesive 31, the head tape 3 is now an overall double-layer structure or a structure with three or more layers. After the head tape 3 of this structure is connected to the battery cell 1, it will increase the size of the battery and reduce the energy density of the battery. Therefore, in order to solve this technical problem, in some embodiments, the portion of the head tape 3 other than the position corresponding to the pole tab 11 does not have the protective adhesive 31, that is, the head tape 3 is a local double-layer structure or a local three-layer structure only in the weak area near the pole tab 11. In this way, while ensuring that the head tape 3 is not cut by the pole tab 11, it can avoid increasing the size of the battery and reducing the energy density of the battery.

[0048] In addition, the two ends of the head tape 3 are respectively connected to the front and back sides of the battery cell 1. It can be understood that the head tape 3 is mainly arranged at the end of the battery cell 1 where the pole ear 11 is provided, and is used to connect the protection plate assembly 2 and the battery cell 1 together. Therefore, in some embodiments, the two ends of the head tape 3 are respectively connected to the front and back sides of the battery cell 1 close to the end where the pole ear 11 is located.

[0049] In addition, if Figure 2As shown, in some embodiments, a top sealing edge 12 is provided at the top of the battery cell 1, and the top sealing edge 12 includes a first bending portion 121 and a flat portion 122, the flat portion 121 is parallel to the end face of the battery cell 1, and the protective plate assembly 2 is provided on the side of the flat portion 122 away from the battery cell 1, and the thickness direction of the protective plate assembly 2 is along the height direction of the battery cell 1.

[0050] That is to say, in this embodiment, the top sealing edge 12 is bent and flattened toward the end face of the battery cell 1, so that the top sealing edge 12 has a flat portion 122 parallel to the end face of the battery cell 1, and the protective plate assembly 2 is arranged on the side of the flat portion 122 away from the battery cell 1, so that the thickness direction of the protective plate assembly 2 is located in the height direction of the battery cell 1, making the structure compact and reducing the structural space.

[0051] Also, please continue to refer to Figure 2 In some embodiments, the tab 11 includes a second bending portion 111 and a connecting portion 112 , the conductive sheet 21 is formed with a U-shaped groove, and the connecting portion 112 is disposed in the U-shaped groove; the protective glue 31 corresponds to the second bending portion 111 .

[0052] That is to say, in this embodiment, the conductive sheet 21 is bent into a U-shaped conductive sheet 21, and the U-shaped conductive sheet 21 forms a U-shaped groove. The connecting portion 112 of the tab 11 extends into the U-shaped groove from the opening of the U-shaped groove, and the free end of the connecting portion 112 faces the bottom of the U-shaped groove. The closed bottom of the U-shaped groove is used to protect the free end of the connecting portion 112. The other end of the connecting portion 112 is connected to the second bent portion 111, and the second bent portion 111 is exposed outside the notch of the U-shaped groove. Usually, the tab 11 1 is very thin. For example, the thickness of the tab 11 is 0.08 mm or 0.1 mm. After the tab 11 is bent, the thickness of the two layers is only 0.16 mm or 0.2 mm. This is similar to a very thin blade and can easily cut the head tape 3. Therefore, in this embodiment, a protective adhesive 31 is provided on the portion of the head tape 3 corresponding to the second bend 111 of the tab 11, so that the protective adhesive 31 is aligned with the second bend 111, thereby preventing the second bend 111 of the tab 11 from cutting the head tape 3.

[0053] Also, please refer to Figure 3 and Figure 4 To avoid increasing the thickness of the battery, in some embodiments, the head tape 3 includes a cell connection portion 32 connected to the battery cell 1, and the protective adhesive 31 extends from one end along the height direction of the battery cell 1 to a first boundary of the cell connection portion 32 close to the side of the protective adhesive 31 or with a gap between the first boundary. In other words, in this embodiment, the protective adhesive 31 is not provided at the cell connection portion 32. The protective adhesive 31 and the cell connection portion 32 do not overlap, and there is no overlapping area between the two. This prevents the protective adhesive 31 from adhering to the battery cell 1, prevents the thickness of the battery from being affected by the provision of the protective adhesive 31, and ensures the energy density of the battery.

[0054] Also, please refer to Figure 2 In order to avoid increasing the length of the battery, in some embodiments, the head tape 3 includes a top surface connection portion 33 connected to the top surface of the protection plate assembly 2, and the protective glue 31 extends from one end along the height direction of the battery cell 1 to the second boundary of the top surface connection portion 33 close to the side of the protective glue 31 or with a spacing between the second boundary. That is, in this embodiment, the protective glue 31 is arranged in the thickness direction of the protection plate assembly 2, and the protective glue 31 is not arranged on the top surface of the corresponding protection plate assembly 2, that is, the protective glue 31 is arranged along the height direction of the battery cell 1 and does not extend to the end surface of the battery cell 1. The top of the protective glue 31 is lower than the second boundary position, and the protective glue 31 and the top surface connection portion 33 of the head tape 3 do not overlap, and there is no overlapping area between the two, thereby preventing the protective glue 31 from being attached to the top surface of the protection plate assembly 2, preventing the length of the battery from being increased due to the provision of the protective glue 31, and ensuring the energy density of the battery.

[0055] Also, please continue to refer to Figure 2 In order to prevent the shape of the position where the protective adhesive 31 of the head tape 3 is provided from protruding from other positions of the head tape 3, in some embodiments, the protective adhesive 31 is provided on the inner side of the head tape 3. That is to say, the protective adhesive 31 is not only provided corresponding to the tab 11, but also provided on the side of the head tape 3 facing the tab 11, that is, provided on the inner side of the head tape 3. In this way, the outer side of the head tape 3 can be ensured to be uniform as a whole, and the shape of the position where the protective adhesive 31 of the head tape 3 is provided can be prevented from protruding from the shapes of other positions of the head tape 3. This ensures that the shape of the head tape 3 is uniform and beautiful as a whole, and avoids increasing the thickness and space occupied by the head tape 3 as a whole.

[0056] Also, please refer to Figure 3 and Figure 4 In order to prevent the protective glue 31 from exceeding the head tape 3, in some embodiments, the length of the protective glue 31 is equal to or less than the length of the head tape 3 along the width direction parallel to the battery cell 1. In other words, there is no limit on the length of the protective glue 31 along the width direction parallel to the battery cell 1, as long as the protective glue 31 is aligned with the tab 11 and is located inside the area of ​​the head tape 3 along the width direction parallel to the battery cell 1, the protective glue 31 is prevented from being exposed outside the head tape 3. Figure 3 As shown, in some embodiments, the length of the protective adhesive 31 in a direction parallel to the width of the battery cell 1 is equal to the length of the head tape 3, that is, both ends of the protective adhesive 31 extend to both ends of the head tape 3 and are flush with both ends of the head tape 3. Of course, in other embodiments, it is also possible to adopt such a scheme: along the direction parallel to the width of the battery cell 1, there is a distance between at least one end of the protective adhesive 31 and the corresponding edge of the head tape 3. Figure 4As shown, there is a distance between both ends of the protective adhesive 31 and both end edges of the head adhesive tape 3 .

[0057] In addition, it is understandable that the protection plate assembly 2 is connected to the battery cell 1 by double-sided tape to adhere the protection plate assembly 2 to the battery cell 1, thereby improving the stability of the position of the protection plate assembly 2. However, in the related art, since the protection plate assembly 2 usually has multiple conductive sheets 21 with a certain thickness, and there is no double-sided tape in the gaps between the conductive sheets 21, the pasting area is reduced, making the protection plate assembly 2 not firmly fixed. When the battery falls, it is easy for the protection plate assembly 2 and the battery cell 1 to shift relative to each other, tearing the tab 11, and causing the battery to fail and become unusable.

[0058] To solve this technical problem, please refer to Figure 5-Figure 9 In some embodiments, a first double-sided adhesive tape 4 is provided between the protection plate assembly 2 and the battery cell 1. The number of conductive sheets 21 is at least two. A first flexible buffer 5 is provided in the gap between any two conductive sheets 21. One side of the first flexible buffer 5 is connected to the first double-sided adhesive tape 4. A second double-sided adhesive tape 6 is provided on the other side of the first flexible buffer 5. The second double-sided adhesive tape 6 is connected to the protection plate assembly 2. It can be understood that the first double-sided adhesive tape 4 has a first double-sided adhesive base material 41 and a first double-sided adhesive top adhesive tape 42 and a first double-sided adhesive bottom adhesive tape 43 located on both sides of the first double-sided adhesive base material 41. The first double-sided adhesive bottom adhesive tape 43 is connected to the first flexible buffer 5. The top adhesive tape of the first flexible buffer 5 is connected to the battery cell 1. The second double-sided adhesive tape 6 has the same structure as the first double-sided adhesive tape 4 and will not be repeated here. The bottom adhesive tape of the second double-sided adhesive tape 6 is connected to the first flexible buffer 5. The top adhesive tape of the second double-sided adhesive tape 6 is used to connect to the protection plate assembly 2, thereby achieving connection between the battery cell 1 and the protection plate assembly 2 at the gap corresponding to the conductive sheets 21. In addition, it can be understood that the second double-sided tape 6 is only present on the surface of the first flexible buffer 5 .

[0059] That is to say, this embodiment increases the bonding area of ​​the double-sided tape by adding a first flexible buffer 5 in the gap between the two conductive sheets 21. It can be understood that the first double-sided tape 4 is bonded to the first flexible buffer 5 at a position corresponding to the first flexible buffer 5, and the height of the gap between the two conductive sheets 21 is compensated by the first flexible buffer 5. The first flexible buffer 5 is connected to the protection plate assembly 2 through the second double-sided tape 6, thereby realizing the connection between the protection plate assembly 2 and the battery cell 1 at a position corresponding to the gap between the two conductive sheets 21, increasing the bonding area, and thus improving the reliability of the connection between the protection plate assembly 2 and the battery cell 1, so that the protection plate assembly 2 is firmly bonded to the battery cell 1, preventing the protection plate assembly 2 from shifting relative to the battery cell 1 and tearing the tab 11 when the battery falls, thereby preventing battery failure.

[0060] Furthermore, in some embodiments, the thickness of the first flexible buffer 5 is the same as the thickness of the conductive sheet 21, or the thickness of the first flexible buffer 5 is greater than the thickness of the conductive sheet 21. It is understood that, without considering the thickness of the second double-sided tape 6, in order for the two sides of the first flexible buffer 5 to be connected to the first double-sided tape 4 and the protective plate assembly 2 respectively, the thickness of the first flexible buffer 5 needs to be at least the same as the thickness of the conductive sheet 21. In this way, the first flexible buffer 5 can effectively compensate for the height of the gap between the two conductive sheets 21 and ensure the reliability of the connection. When the thickness of the first flexible buffer 5 is greater than the thickness of the conductive sheet 21, it helps to use the first flexible buffer 5 to absorb part of the impact force when the battery is subjected to external impact, thereby protecting the protective plate assembly 2 and the battery cell 1 and reducing the risk of components between the protective plate assembly 2 and the battery cell 1 being crushed.

[0061] It is understandable that the thickness of the conductive sheet 21 is generally 0.5 mm. Therefore, in some embodiments, the thickness of the first flexible buffer 5 is equal to 0.5 mm, or is greater than 0.5 mm by a preset value.

[0062] It should be noted that this embodiment does not limit the specific material of the first flexible buffer 5, as long as the first flexible buffer 5 can play the role of transferring the protective plate assembly 2 located in the gap between the two conductive sheets 21 and the battery cell 1. In some embodiments, the first flexible buffer 5 includes foam.

[0063] In addition, the protection plate assembly 2 usually includes a protection plate 22 and a flexible circuit board 23. After the protection plate assembly 2 is installed, the two ends of the flexible circuit board 23 are attached to the top surface of the protection plate 22 using a fixing glue 7. In order to prevent the flexible circuit board 23 located on the top surface of the protection plate 22 from warping, please combine Figure 6 and Figure 10 In some embodiments, the protective plate assembly 2 includes a protective plate 22 and a flexible circuit board 23. The flexible circuit board 23 includes a first end 231 and a second end 232 separated by a predetermined distance. The battery further includes a fixing adhesive 7 and a second flexible buffer 8. The fixing adhesive 7 is respectively connected to the first end 231 and the second end 232 on a side facing away from the protective plate 22. The second flexible buffer 8 is disposed between the first end 231 and the second end 232, and two sides of the second flexible buffer 8 are respectively connected to the fixing adhesive 7 and the protective plate 22. It is understood that one side of the second flexible buffer 8 is connected to the fixing adhesive 7, and the other side of the second flexible buffer 8 can be connected to the protective plate 22 via an adhesive (e.g., a third double-sided tape), thereby achieving a reliable connection between the second flexible buffer 8 and the protective plate 22.

[0064] That is to say, this embodiment adds a second flexible buffer 8 between the first end 231 and the second end 232 of the flexible circuit board 23, uses the second flexible buffer 8 to fill the space between the first end 231 and the second end 232, and connects the two sides of the second flexible buffer 8 to the fixing glue 7 and the protective plate 22 respectively, thereby increasing the bonding area, making the flexible circuit board 23 more firmly fixed and preventing the flexible circuit board 23 from warping.

[0065] Furthermore, in some embodiments, the thickness of the second flexible buffer member 8 is the same as that of the flexible circuit board 23, or the thickness of the second flexible buffer member 8 is greater than that of the flexible circuit board 23. It is understood that in order for the two sides of the second flexible buffer member 8 to be connected to the fixing adhesive 7 and the protective plate 22, respectively, the thickness of the second flexible buffer member 8 must be at least the same as that of the flexible circuit board 23. This allows the second flexible buffer member 8 to effectively compensate for the height gap between the first end 231 and the second end 232 of the flexible circuit board 23, ensuring a reliable connection. Furthermore, when the thickness of the second flexible buffer member 8 is greater than that of the flexible circuit board 23, it helps to absorb some of the impact force when the battery is subjected to external impact, thereby protecting the protective plate assembly 2 and the battery cell 1 and reducing the risk of battery damage.

[0066] In addition, it should be noted that this embodiment does not limit the specific length of the second flexible buffer 8 in the direction perpendicular to the line between the first end 231 and the second end 232. As long as the second flexible buffer 8 can connect the fixing glue 7 and the protective plate 22 corresponding to the part between the first end 231 and the second end 232 of the flexible circuit board 23, it can prevent the first end 231 and the second end 232 of the flexible circuit board 23 from warping.

[0067] In some embodiments, the length of the second flexible buffer 8 in a direction perpendicular to the line connecting the first end 231 and the second end 232 is less than or equal to the length of the fixing glue 7. In other words, the length of the second flexible buffer 8 in a direction perpendicular to the line connecting the first end 231 and the second end 232 can be equal to or less than the length of the fixing glue 7. In other words, the ends of the second flexible buffer 8 do not extend beyond the ends of the fixing glue 7.

[0068] In addition, it should be noted that the above embodiment does not limit the specific material of the second flexible buffer 8, as long as the second flexible buffer 8 can play the role of transferring the fixing glue 7 and the protective plate 22. In some embodiments, the second flexible buffer 8 includes a silicone gasket.

[0069] In addition to the above-mentioned battery, the present invention also provides an electronic device including the battery disclosed in the above-mentioned embodiment. The electronic device can be a mobile phone, a laptop computer or other device that requires electricity. For the structure of other parts of the electronic device, please refer to the relevant technology and will not be described in detail in this article.

[0070] The key point of this embodiment is that the battery disclosed in any of the above embodiments has the same beneficial effects as the above batteries, which will not be described in detail here.

[0071] It should also be noted that, in this specification, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0072] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0073] The battery and electronic device provided by the present invention are described in detail above. The principles and implementation methods of the present invention are described herein using specific examples. The description of the above examples is intended only to help understand the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A battery, characterized in that: include: A battery cell (1) having a tab (11); A protective plate assembly (2) is connected to the top of the battery cell (1) and is provided with a conductive sheet (21), wherein the conductive sheet (21) is connected to the tab (11); The head tape (3) has two ends connected to the front and back surfaces of the battery cell (1) respectively and is wound around the outer periphery of the protection plate assembly (2). The head tape (3) is provided with at least one layer of protective glue (31) at a position corresponding to the tab (11).

2. The battery according to claim 1, characterized in that The top of the battery cell (1) is provided with a top sealing edge (12), the top sealing edge (12) comprising a first bent portion (121) and a flat portion (122), the flat portion (122) being parallel to the end face of the battery cell (1), the protective plate assembly (2) being provided on a side of the flat portion (122) away from the battery cell (1), and the thickness direction of the protective plate assembly (2) being along the height direction of the battery cell (1).

3. The battery according to claim 1, characterized in that The tab (11) comprises a second bent portion (111) and a connecting portion (112); the conductive sheet (21) is formed with a U-shaped groove; and the connecting portion (112) is disposed in the U-shaped groove; The protective glue (31) corresponds to the second bending portion (111).

4. The battery according to claim 1, characterized in that The head tape (3) comprises a cell connection portion (32) connected to the cell (1), and the protective adhesive (31) extends along one end of the height direction of the cell (1) to a first boundary of the cell connection portion (32) close to a side of the protective adhesive (31) or to a distance between the first boundary and the protective adhesive (31).

5. The battery according to claim 1, characterized in that The head tape (3) comprises a top surface connection portion (33) connected to the top surface of the protection plate assembly (2), and the protection glue (31) extends from one end along the height direction of the battery cell (1) to a second boundary of the top surface connection portion (33) close to one side of the protection glue (31) or to a distance between the top surface connection portion (33) and the second boundary.

6. The battery according to claim 1, characterized in that The protective adhesive (31) is arranged on the inner side of the head adhesive tape (3).

7. The battery according to claim 1, characterized in that Along a width direction parallel to the battery core (1), the length of the protective adhesive (31) is equal to or less than the length of the head adhesive tape (3).

8. The battery according to any one of claims 1 to 7, characterized in that: A first double-sided adhesive tape (4) is provided between the protection plate assembly (2) and the battery cell (1); the number of the conductive sheets (21) is at least two; a first flexible buffer (5) is provided in the gap between any two of the conductive sheets (21); one side of the first flexible buffer (5) is connected to the first double-sided adhesive tape (4); and the other side of the first flexible buffer (5) is provided with a second double-sided adhesive tape (6); and the second double-sided adhesive tape (6) is connected to the protection plate assembly (2).

9. The battery according to claim 8, characterized in that The thickness of the first flexible buffer (5) is the same as the thickness of the conductive sheet (21), or the thickness of the first flexible buffer (5) is greater than the thickness of the conductive sheet (21).

10. The battery according to any one of claims 1 to 7, characterized in that: The protective plate assembly (2) comprises a protective plate (22) and a flexible circuit board (23), wherein the flexible circuit board (23) comprises a first end (231) and a second end (232) having a preset distance; the battery further comprises: A fixing glue (7) connected to one side of the first end portion (231) and the second end portion (232) facing away from the protective plate (22); A second flexible buffer (8) is provided between the first end (231) and the second end (232), and is connected to the fixing glue (7) and the protective plate (22) respectively.

11. The battery according to claim 10, characterized in that The thickness of the second flexible buffer (8) is the same as the thickness of the flexible circuit board (23), or the thickness of the second flexible buffer (8) is greater than the thickness of the flexible circuit board (23).

12. The battery according to claim 10, characterized in that In a direction perpendicular to a line connecting the first end portion (231) and the second end portion (232), the length of the second flexible buffer (8) is less than or equal to the length of the fixing glue (7).

13. An electronic device, characterized in that: A battery comprising the battery according to any one of claims 1 to 12.

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