CN219610666U - Insulating gummed paper, battery cell and battery - Google Patents
Insulating gummed paper, battery cell and battery Download PDFInfo
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- CN219610666U CN219610666U CN202320360987.2U CN202320360987U CN219610666U CN 219610666 U CN219610666 U CN 219610666U CN 202320360987 U CN202320360987 U CN 202320360987U CN 219610666 U CN219610666 U CN 219610666U
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- adhesive paper
- insulating
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- top seal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to an insulating adhesive paper, a battery cell and a battery, wherein the insulating adhesive paper comprises an adhesive paper body, a first protection part and two second protection parts, wherein the first protection part and the two second protection parts are arranged on the adhesive paper body, the adhesive paper body extends along a first direction, the second protection parts are respectively arranged at two ends of the adhesive paper body along the first direction, each second protection part comprises a first sub-part and a second sub-part, the first sub-parts are respectively connected with the adhesive paper body and the second sub-parts, a first notch is formed in each first sub-part, and the adhesive paper body, the first protection parts and the second protection parts are integrally formed. According to the insulating adhesive paper, the insulating adhesive paper can be positioned through the first notch when being attached to the top seal of the battery cell, the insulating adhesive paper can be attached to the front surface of the battery cell from the back surface without opening the side plate, the packaging is completed, the battery cell structure is not damaged, the battery cell can be glued at multiple points, the overall reliability is improved, and in addition, the first notch is arranged, so that the insulating adhesive paper can be prevented from wrinkling.
Description
Technical Field
The utility model relates to the technical field of battery cells, in particular to insulating gummed paper, a battery cell and a battery.
Background
In the conventional battery pack packaging scheme, when the head insulation adhesive tape of the conventional soft-packaged battery core is adhered and wrapped, the side plates are required to be flattened to be flush with the pit surface, and the soft-packaged battery core is adhered and wrapped back from the pit surface. The side opening action uses an equipment mechanism to act on the side edge and the pit surface of the battery cell, so that the battery cell structure is damaged to bring the risk of battery safety; when the side is too high in glue coating, the side is difficult to open completely, and the glue coating and packaging yield are affected; the opened side edge is in a fan shape, aluminum leakage and poor appearance such as tilting of the adhesive paper ear can occur when the adhesive paper is wrapped, and the primary yield is affected; the cell forms the closed angle, and the production is because of debugging difficulty, the frequent wearing and tearing of spare parts change causes abnormal package to shut down, influences equipment steady production.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the insulating adhesive paper, which can be positioned through the first notch when being attached to the top seal of the battery cell, the insulating adhesive paper can be attached to the front surface of the battery cell from the back surface without opening the side plate, the packaging is completed, the structure of the battery cell is not damaged, the battery cell can be glued at multiple points, and the overall reliability is improved.
The utility model also provides a battery cell which comprises the insulating gummed paper.
The utility model also provides a battery, which comprises the battery core.
The insulating adhesive paper is used for being attached to a battery cell body, the battery cell body comprises a positive electrode lug, a negative electrode lug and a winding core body, the battery cell body comprises an adhesive paper body, a first protection part and two second protection parts, the first protection part and the two second protection parts are arranged on the adhesive paper body, the adhesive paper body extends along a first direction, the second protection parts are respectively arranged at two ends of the adhesive paper body along the first direction, the second protection parts comprise a first sub part and a second sub part, the first sub part is respectively connected with the adhesive paper body and the second sub part, a first notch is formed in the first sub part, and the adhesive paper body, the first protection parts and the second protection parts are integrally formed.
According to the insulating adhesive paper, the insulating adhesive paper can be positioned through the first notch when being attached to the top seal of the battery cell, the insulating adhesive paper can be attached to the front surface of the battery cell from the back surface without opening the side plate, the packaging is completed, the battery cell structure is not damaged, the battery cell can be glued at multiple points, the overall reliability is improved, and in addition, the first notch is arranged, so that the insulating adhesive paper can be prevented from wrinkling.
According to the insulating adhesive paper provided by the utility model, the first notch is configured into a semicircle, the first notch is concavely formed on one end of the first sub-part far away from the winding core body along the second direction, and the second direction is perpendicular to the first direction.
According to the insulating adhesive paper disclosed by the utility model, the second sub-part is provided with the second notch, the second notch is concavely formed on one end, far away from the winding core body, of the second sub-part along the second direction, and the second direction is perpendicular to the first direction.
Optionally, the second notch is configured as a semicircle, and an end of the second notch is located on an abutment line of the first sub-portion and the second sub-portion.
Optionally, an end of the first sub-portion facing away from the first protection portion is provided with an inclined end, and the inclined end is inclined towards a direction gradually approaching the first protection portion in a direction gradually away from the winding core body along the second direction.
According to the insulating gummed paper of the present utility model, the width of the second sub-portion is smaller than the width of the gummed paper body along the second direction, and the second direction is perpendicular to the first direction.
The cell according to the present utility model comprises: the battery cell comprises a battery cell body, wherein the battery cell body comprises a positive electrode lug, a negative electrode lug and a winding core body, the positive electrode lug and the negative electrode lug are connected with a first end of the winding core body, a top seal is further arranged at the first end of the winding core body, opposite side plates are arranged at two ends of the top seal, the side plates are perpendicular to the positive electrode lug and the negative electrode lug, and the top seal comprises a first surface and a second surface which are opposite; the insulating adhesive paper is adhered to the top seal and the side plate, the adhesive paper body is adhered to the first surface, the first protection part is adhered to the second surface, the second protection part is bent to wrap the side plate, and the length of a connecting line between the symmetrical centers of the two first gaps is equal to the width of the winding core body along the first direction.
According to the battery cell, when the insulating adhesive paper is attached to the top seal of the battery cell, the first notch can be used for positioning, the insulating adhesive paper can be attached to the front surface of the battery cell from the back surface without opening the side plate, the battery cell can be wrapped, the structure of the battery cell is not damaged, the battery cell can be glued at multiple points, and the overall reliability is improved.
Optionally, in the second direction, the width of the gummed paper body is equal to the width of the top seal, and the width of the first protection part is equal to the width of the top seal.
Optionally, in the second direction, the width of the first sub-portion is greater than the sum of the widths of the second sub-portion and the gummed paper body.
The battery comprises the battery cell.
According to the battery provided by the utility model, the battery core is arranged, the battery core can be positioned through the first notch when being attached to the top seal of the battery core, the insulating adhesive paper can be attached to the front surface of the battery core from the back surface without opening the side plate, the packaging is completed, the battery core structure is not damaged, the battery core can be glued with multiple points, the overall reliability is improved, in addition, the first notch is arranged, the insulating adhesive paper is prevented from wrinkling, the battery is enabled to run more stably, and the service life of the battery is prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a front view of an insulating tape according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a perspective view of a battery cell according to an embodiment of the present utility model;
fig. 4 is another perspective view of a battery cell according to an embodiment of the present utility model;
FIG. 5 is an enlarged view at B in FIG. 4;
fig. 6 is a schematic illustration of an unfolded insulating glue and cell according to an embodiment of the utility model.
Reference numerals:
the insulation gummed paper 1, gummed paper body 10, first breach 11, first protection portion 20, second protection portion 30, first sub-portion 31, inclined end 311, second sub-portion 32, second breach 33, electric core 100, electric core body 2, positive tab 201, negative tab 202, rolled core body 203, top seal 204, curb plate 205.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 3 to 5, an insulation blanket 1 according to an embodiment of the present utility model is described below with reference to the drawings. The insulating adhesive tape 1 is used for attaching on electric core body 2, and electric core 100 includes electric core body 2, and electric core body 2 includes anodal ear 201, negative pole ear 202 and rolls up core body 203, and anodal ear 201 and negative pole ear 202 all with roll up the first end of core body 203 and be end connection, roll up the first end of core body 203 still and be equipped with the top seal 204, the both ends of top seal 204 are equipped with relative curb plate 205, curb plate 205 perpendicular to anodal ear 201 and negative pole ear 202. That is, the winding core body 203 includes opposite ends in the length direction, wherein one end portion where the positive electrode tab 201 and the negative electrode tab 202 are provided is a first end.
As shown in fig. 1 and 2, an insulating adhesive tape 1 according to an embodiment of the present utility model includes an adhesive tape body 10, a first protection portion 20 and two second protection portions 30 disposed on the adhesive tape body 10, where the adhesive tape body 10 extends along a first direction, the second protection portions 30 are respectively disposed at two ends of the adhesive tape body 10 along the first direction, the second protection portions 30 include a first sub-portion 31 and a second sub-portion 32, the first sub-portion 31 is respectively connected with the adhesive tape body 10 and the second sub-portion 32, and a first notch 11 is disposed on the first sub-portion 31, where the adhesive tape body 10, the first protection portion 20 and the second protection portion 30 are integrally formed. It can be understood that, from the insulating adhesive paper 1 in the direction from one end to the other end along the first direction, the second protecting portions 30, the first protecting portions 20, and the second protecting portions 30 are sequentially arranged, and the first protecting portions 20 and the two second protecting portions 30 form a space between them, so that the positive electrode tab 201 and the negative electrode tab 202 can be avoided.
In terms of development, through setting up first breach 11, when attaching insulating tape 1 on the top seal 204 of electric core 100, can fix a position insulating tape 1 through two first breach 11, the center of first breach 11 is located same straight line with the junction of top seal 204 and curb plate 205 of electric core 100, later wraps up insulating tape 1 on top seal 204 and curb plate 205, need not to flatten curb plate 205. In addition, the first notch 11 is provided, so that the insulating offset paper 1 can be prevented from wrinkling.
It can be understood that, when the insulating tape 1 is attached to the battery cell body 2, the first direction is the width direction of the winding core body 203.
According to the insulating adhesive paper 1 provided by the embodiment of the utility model, the insulating adhesive paper 1 can be positioned through the first notch 11 when being attached to the top seal 204 of the battery cell 100, the insulating adhesive paper 1 can be attached from the back to the front of the battery cell 100 without opening the side plate 205, the packaging is completed, the structure of the battery cell 100 is not damaged, the battery cell 100 can be glued at multiple points, the overall reliability is improved, and in addition, the first notch 11 is arranged, so that wrinkling of the insulating adhesive paper 1 can be prevented.
As shown in fig. 1 and 2, according to the insulating tape 1 of the embodiment of the present utility model, the first notch 11 is configured in a semicircle shape, and the first notch 11 is concavely formed on one end of the first sub-portion 31 away from the winding core body 203 along the second direction, which is perpendicular to the first direction. In this way, the first sub-portion 31 near the end of the winding core body 203 is flush with the first end, that is, the end of the winding core body 203, so that the joint of the center of the first notch 11 and the top seal 204 and the side plate 205 of the battery core 100 is located on the same straight line, positioning can be realized, meanwhile, due to the fact that errors in a reasonable range exist in the production process of different battery cores 100, certain differences exist in the size between the battery cores 100, through the arrangement of the first notch 11, stacking caused by the dimensional differences of the battery cores 100 can be avoided, and therefore wrinkling is prevented, meanwhile, the first notch 11 is configured into a semicircle, the structural strength of the insulating adhesive paper 1 can be guaranteed, stress concentration at the first notch 11 is reduced, the possibility that tearing occurs when the insulating adhesive paper 1 is wrapped on the side plate 205 and the top seal 204 is prevented, and in addition, the structural rules of the first notch 11 are enabled to be convenient to position.
It can be understood that, when the insulating tape 1 is attached to the battery core body 2, the second direction is the length direction of the winding core body 203.
As shown in fig. 1 and fig. 2, according to the insulating adhesive paper 1 of the embodiment of the present utility model, the second sub-portion 32 is provided with the second notch 33, the second notch 33 is concavely formed on one end of the second sub-portion 32 away from the winding core body 203 along the second direction, and the second direction is perpendicular to the first direction, so that one end of the second sub-portion 32 close to the winding core body 203 is flush with the first end, that is, the end of the winding core body 203, and the second notch 32 can provide a space for flattening the insulating adhesive paper 1, so that deflection caused by stacking due to the size difference of the battery core 100 is avoided, wrinkling is prevented, and the operability of the insulating adhesive paper 1 when wrapped is improved.
As shown in fig. 1 and 2, in some embodiments, the second notch 33 is configured as a semicircle, and an end of the second notch 33 is located on an adjoining line of the first sub-portion 31 and the second sub-portion 32. Therefore, the second notch 33 can be conveniently machined and positioned, meanwhile, space can be provided for flattening the insulating adhesive paper 1, the structural strength of the insulating adhesive paper 1 is guaranteed while the insulating adhesive paper 1 is prevented from wrinkling, the stress concentration at the second notch 33 is reduced, and the possibility of tearing when the insulating adhesive paper 1 is wrapped on the side plate 205 and the top seal 204 is prevented.
As shown in fig. 1 and 2, in some embodiments, an end of the first sub-portion 31 facing away from the first guard portion 20 is provided with an inclined end 311, and the inclined end 311 is inclined toward a direction gradually approaching the first guard portion 20 in a direction gradually moving away from the winding core body 203 in the second direction. As shown in fig. 5, when the insulating adhesive paper 1 is attached to the top seal 204 and the side plate 205, the second sub-portion 32 is covered on the first sub-portion 31, and the inclined end 311 can generate an avoiding space, so that the second sub-portion 32 can directly contact with the side plate 205, thereby increasing the adhesive area on the side plate 205 for adhering the second sub-portion 32, and preventing arching when the insulating adhesive paper 1 is attached to the side plate 205.
As shown in fig. 1, according to the insulating adhesive tape 1 of the embodiment of the present utility model, the width of the second sub-portion 32 is smaller than the width of the adhesive tape body 10 in the second direction, and the second direction is perpendicular to the first direction, so that the second sub-portion 32 can be prevented from arching when being folded over and wrapped around the side plate 205.
As shown in fig. 3 to 5, a battery cell 100 according to an embodiment of the present utility model includes: the battery cell body 2, the battery cell body 2 comprises a positive electrode lug 201, a negative electrode lug 202 and a winding core body 203, the positive electrode lug 201 and the negative electrode lug 202 are connected with a first end of the winding core body 203, a top seal 204 is further arranged at the first end of the winding core body 203, opposite side plates 205 are arranged at two ends of the top seal 204, the side plates 205 are perpendicular to the positive electrode lug 201 and the negative electrode lug 202, and the top seal 204 comprises opposite first surfaces and second surfaces; as described above, in the insulating adhesive tape 1, the insulating adhesive tape 1 is attached to the top seal 204 and the side plate 205, the adhesive tape body 10 is attached to the first surface, the first protection portion 20 is attached to the second surface, the second protection portion 30 is folded to wrap the side plate 205, the length of the connecting line between the symmetrical centers of the two first notches 11 is equal to the width of the winding core body 203 along the first direction, and when the insulating adhesive tape 1 is attached to the top seal 204 and the side plate 205, the symmetrical centers of the first notches 11 can be aligned with the two ends of the winding core body 203 in the width direction respectively, so that positioning is convenient. It will be appreciated that when the insulating tape 1 is attached to the top seal 204 and the side plates 205, the first direction is the width direction of the winding core body 203, and the second direction is the length direction of the winding core body 203.
It will be appreciated that in some embodiments, the first face is the back face of the top seal 204 and the second face is the deep-pothole face of the top seal 204.
As shown in fig. 6, according to the embodiment of the utility model, when the battery core 100 is attached to the top seal 204 of the battery core 100, the first notch 11 can be used for positioning, that is, when the insulating adhesive paper 1 is attached to the top seal 204 and the side plates 205, the symmetrical center of the first notch 11 is aligned with two ends of the winding core body 203 in the width direction respectively, so that the positioning is convenient, the insulating adhesive paper 1 can be attached from the back to the front of the battery core 100 without opening the side plates 205, the packaging is completed, the structure of the battery core 100 is not damaged, the battery core 100 can be glued at multiple points, the overall reliability is improved, in addition, the first notch 11 is provided, a space can be provided for flattening the insulating adhesive paper 1, the deflection caused by material folding due to the size difference of the battery core 100 is avoided, and the insulating adhesive paper 1 is prevented.
In some embodiments, along the second direction, the width of the gummed paper body 10 is equal to the width of the top seal 204, and the width of the first protection portion 20 is equal to the width of the top seal 204, so that the edge of one side of the gummed paper body 10 facing away from the first protection portion 20 can be aligned with the edge of one side of the top seal 204, which is close to the winding core body 203, and the first protection portion 20 is folded from the gummed paper body 10 and attached to the top seal 204, thereby realizing insulation protection of the top seal 204.
In some embodiments, the width of the first sub-portion 31 is greater than the sum of the widths of the second sub-portion 32 and the gummed paper body 10 along the second direction, so that a bending margin can be provided for bending the first sub-portion 31 and attaching the first sub-portion to the side plate 205 and the top seal 204, so as to ensure that the insulation gummed paper 1 completely covers the side plate 205.
In a specific embodiment, the width of the first sub-portion 31 is set to 6.3±0.15mm, the width of the second sub-portion 32 is set to 2.5±0.10mm, and the thickness of the insulation tape 1 is set to 0.05±0.01mm.
In a specific embodiment, the method for attaching the insulating tape 1 to the battery cell 100 by using the tape attaching apparatus includes the following steps:
as shown in fig. 6, the insulating adhesive paper 1 is positioned on a first surface of the top seal 204 (it is understood that in some embodiments, the first surface is a back surface of the top seal 204, and the second surface is a deep pit surface of the top seal 204), and a supporting block on the device is adjusted, so that a safe distance is reserved for the supporting block along the Y-axis direction;
the supporting block is pressed down in the middle in the Z-axis direction, moves to two sides in the X-axis direction for shaping, and reserves a safety distance in the Y-axis direction;
the upper adhesive clamping block is flat with the edge of the top seal 204 below the adhesive paper, the upper adhesive clamping block and the lower adhesive clamping block move upwards together to wipe the adhesive paper upwards to form 90 degrees, and when the upper adhesive clamping block is 0.5mm higher than the side plate 205, the upper adhesive clamping block and the lower adhesive clamping block move together to the battery cell body 2 for 2mm, and the upper adhesive clamping block and the lower adhesive clamping block are clamped. The width of the upper adhesive clamping block is the maximum edge folding thickness according to the width Wmin-2N of the battery cell 100. The mode can avoid the phenomenon of small ear deflection at two sides, and reduce the poor appearance repair rate of the product;
the opening stroke of the adhesive clamping mechanism is 3mm, the bottom surface is flush with the upper part of the side sealing edge, the two sides shrink inwards to flatten the first sub-part 31, the inner side clamp moves to the average value of the width of the battery cell 100 of-1.5 mm, the bottom surface is pressed down to contact the second surface of the top sealing 204, and the clamp is centered and clamped. And (5) finishing encapsulation, and withdrawing the mechanism.
The battery according to the present utility model includes the above-described battery cell 100.
According to the battery provided by the utility model, through the arrangement of the battery core 100, the first notch 11 can be used for positioning when the battery core 100 is attached to the top seal 204 of the battery core 100, the insulating adhesive paper 1 can be attached to the front surface of the battery core 100 from the back surface without opening the side plate 205, the packaging is completed, the structure of the battery core 100 is not damaged, the battery core 100 can be glued at multiple points, the overall reliability is improved, in addition, the first notch 11 is arranged, the wrinkling of the insulating adhesive paper 1 can be prevented, the battery can run more stably, and the service life of the battery can be prolonged.
In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (10)
1. The utility model provides an insulating adhesive tape for paste and locate on the electric core body, the electric core body includes anodal ear, negative pole ear and rolls up the core body, its characterized in that, include the adhesive tape body with locate first guard portion and two second guard portions on the adhesive tape body, the adhesive tape body extends along first direction, second guard portion locates respectively the adhesive tape body along the both ends of first direction, second guard portion includes first sub-portion and second sub-portion, first sub-portion respectively with the adhesive tape body with the second sub-portion is connected, be equipped with first breach on the first sub-portion, wherein, the adhesive tape body first guard portion and second guard portion integrated into one piece.
2. The insulating tape of claim 1, wherein the first notch is configured as a semicircle, the first notch being formed inward in a second direction on an end of the first sub-portion remote from the winding core body, the second direction being perpendicular to the first direction.
3. The insulating tape of claim 1, wherein the second sub-portion is provided with a second notch, the second notch is concavely formed along a second direction on an end of the second sub-portion away from the winding core body, and the second direction is perpendicular to the first direction.
4. The insulating tape of claim 3, wherein the second gap is configured as a semicircle, and an end of the second gap is located on an adjoining line of the first sub-portion and the second sub-portion.
5. The insulating tape of claim 3, wherein an end of the first sub-portion facing away from the first guard portion is provided with an inclined end that is inclined toward a direction gradually approaching the first guard portion in a direction gradually moving away from the winding core body in the second direction.
6. The insulating offset of claim 1, wherein the width of the second sub-portion is less than the width of the offset body in a second direction, the second direction being perpendicular to the first direction.
7. A cell, comprising:
the battery cell comprises a battery cell body, wherein the battery cell body comprises a positive electrode lug, a negative electrode lug and a winding core body, the positive electrode lug and the negative electrode lug are connected with a first end of the winding core body, a top seal is further arranged at the first end of the winding core body, opposite side plates are arranged at two ends of the top seal, the side plates are perpendicular to the positive electrode lug and the negative electrode lug, and the top seal comprises a first surface and a second surface which are opposite;
the insulating adhesive paper according to any one of claims 1-6, wherein the insulating adhesive paper is attached to the top seal and the side plate, the adhesive paper body is attached to the first surface, the first protection part is attached to the second surface, the second protection part is folded and wrapped on the side plate, and the length of a connecting line between symmetrical centers of the two first notches is equal to the width of the winding core body along the first direction.
8. The cell of claim 7, wherein in the second direction, the width of the gummed paper body is equal to the width of the top seal, and the width of the first guard is equal to the width of the top seal.
9. The cell of claim 8, wherein a width of the first sub-portion is greater than a sum of widths of the second sub-portion and the gummed paper body in the second direction.
10. A battery comprising a cell according to any one of claims 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320360987.2U CN219610666U (en) | 2023-02-17 | 2023-02-17 | Insulating gummed paper, battery cell and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320360987.2U CN219610666U (en) | 2023-02-17 | 2023-02-17 | Insulating gummed paper, battery cell and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219610666U true CN219610666U (en) | 2023-08-29 |
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ID=87750017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320360987.2U Active CN219610666U (en) | 2023-02-17 | 2023-02-17 | Insulating gummed paper, battery cell and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219610666U (en) |
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2023
- 2023-02-17 CN CN202320360987.2U patent/CN219610666U/en active Active
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