CN218849728U - Naked electric core insulating piece, battery, module and battery package - Google Patents
Naked electric core insulating piece, battery, module and battery package Download PDFInfo
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- CN218849728U CN218849728U CN202222475803.5U CN202222475803U CN218849728U CN 218849728 U CN218849728 U CN 218849728U CN 202222475803 U CN202222475803 U CN 202222475803U CN 218849728 U CN218849728 U CN 218849728U
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- battery
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- electric core
- insulation sheet
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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 a naked electric core insulating piece, battery, module and battery package, naked electric core insulating piece include insulating piece main part (10) and be used for protecting utmost point ear protection portion (12) of utmost point ear (2). The battery comprises a battery cell main body and the naked battery cell insulating sheet wrapped outside the battery cell main body, wherein the battery is provided with a pole lug (2), and a pole lug protection part (12) covers two surfaces of the pole lug (2). The module comprises a battery as described above. The battery pack includes the module as described above. Compared with the prior art, the utility model adds a raised part at the position of the bare cell insulation sheet wrapping the bare cell for isolating the tab and the shell to realize insulation; the naked cell insulation sheet does not need to be fixed with the shell in a hot melting way, so that the cell manufacturing process is shortened; the tab root rubberizing can be cancelled, the tab tearing phenomenon is reduced, and the overcurrent capacity is improved.
Description
Technical Field
The utility model relates to a lithium ion battery field, concretely relates to naked electric core insulating piece, battery, module and battery package.
Background
Lithium ion power batteries have been widely used in electronic products such as mobile phones and computers due to their advantages of high specific energy, long cycle life, environmental protection, etc., and in recent years, their application development in new energy automobiles is rapid. Because of the shell of most lithium ion power batteries adopts conductive materials such as aluminum or steel, therefore the electric core is short-circuited easily, and the electric core and the shell need to be insulated to prevent internal short circuit, thereby improving the safety performance of the battery.
At present, in the embedding shell after electric core passes through the insulating piece (for example adopt PET to make) full parcel, and naked electric core insulating piece does not cover utmost point ear most usually, leads to utmost point ear to have the risk of bypassing naked electric core insulating piece and casing overlap joint.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an isolated utmost point ear and casing are in order to realize insulating naked electric core insulating piece, battery, module and battery package in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized by the following technical proposal:
a bare cell insulation sheet comprises an insulation sheet main body and a tab protection part for protecting a tab; the tab protection part is positioned on at least one side edge of the insulation sheet main body.
Furthermore, at least one side of the tab protection part is provided with a first bonding part, and the first bonding part is positioned on the edge of the insulation sheet main body.
Further, the size of the extension length a of the first bonding part far away from the insulation sheet main body is larger than, smaller than or equal to the size of the extension length b of the tab protection part far away from the insulation sheet main body.
Furthermore, the insulating sheet main body is further provided with a second bonding portion, and the second bonding portion and the first bonding portion are located on different edges of the insulating sheet main body.
Furthermore, the insulation sheet is of an integrally formed structure.
The utility model provides a battery, this battery include naked electric core main part and parcel as above outside electric core main part naked electric core insulating piece, utmost point ear protection portion cover on utmost point ear two sides.
Further, the extension length of the tab protection part is greater than, less than or equal to that of the tab.
Further, the width dimension of the tab protection part is greater than or equal to the width dimension of the tab.
A module comprising a battery as described above.
A battery pack comprises the module.
Compared with the prior art, the utility model has the advantages of it is following:
(1) The utility model adds a raised part at the position of the bare cell insulation sheet wrapping the bare cell for isolating the tab and the shell to realize insulation;
(2) The naked electric core insulation sheet of the utility model does not need to be fixed with the shell by hot melting, thus shortening the manufacturing flow of the electric core;
(3) The utility model discloses can cancel utmost point ear root rubberizing, reduce utmost point ear and tear the phenomenon, promote the ability of overflowing.
Drawings
Fig. 1 is a development view of a bare cell insulation sheet in embodiment 1;
fig. 2 is an expanded view of a bare cell insulation sheet in embodiment 2;
fig. 3 is an expanded view of a bare cell insulation sheet in embodiment 3;
fig. 4 is an expanded view of a bare cell insulation sheet in embodiment 4;
fig. 5 is a development view of an insulating sheet of a bare cell in embodiment 5;
fig. 6 is a development view of an insulating sheet of a bare cell in embodiment 6;
FIG. 7 is a side view of the battery according to example 7;
FIG. 8 is a side view of the battery of example 8;
FIG. 9 is a side view of the battery according to example 9;
fig. 10 is a partial schematic view of the naked cell insulation sheet according to the present invention;
FIG. 11 is a schematic view of a battery according to the present invention;
the reference numbers in the figures indicate: the insulation sheet main body 10, the second bonding portion 11, the tab protection portion 12, the main first bonding portion 13, the sub second bonding portion 14, and the tab 2.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
A naked electric core insulation sheet comprises an insulation sheet main body 10 and a tab protection part 12 for protecting a tab 2; the tab protecting part 12 is located on at least one side edge of the insulating sheet main body 10.
In some embodiments, at least one side of the tab protection part 12 is provided with a first bonding part, which is located at the edge of the insulation sheet main body 10.
In some embodiments, the dimension of the first bond away from the extended length a of the insulation sheet main body 10 is greater than, less than or equal to the dimension of the extended length b of the tab protection part 12 away from the insulation sheet main body 10. When larger or smaller, the difference is 1-10mm, such as 1mm, 2mm, 3mm 8230 \8230 \ 8230; 8mm, 9mm or 10mm.
In some embodiments, the insulation sheet main body 10 is further provided with a second bonding portion 11, and the second bonding portion 11 is located at a different edge of the insulation sheet main body 10 from the first bonding portion.
In some embodiments, the insulating sheet is an integrally formed structure.
The utility model provides a battery, this battery includes naked electric core main part and wraps up at the external naked electric core insulating piece as above of electric core main part, and utmost point ear protection part 12 covers on utmost point ear 2 two sides.
In some embodiments, the extension length dimension of the tab protection part 12 is greater than, less than or equal to the extension length dimension of the tab 2. When the difference is larger or smaller than the above range, the difference is 1-10mm, such as 1mm, 2mm, 3mm 8230, 82308 mm, 9mm or 10mm.
In some embodiments, the width dimension of the tab protection part 12 is greater than or equal to the width dimension of the tab 2. If it is larger than the above range, the difference is 1-10mm, such as 1mm, 2mm, 3mm, 8230 \ 8230:, 8mm, 9mm or 10mm.
A module comprises the battery.
A battery pack comprises the module.
Example 1
The utility model provides a naked electric core insulating piece, like figure 1, this insulating piece includes insulating piece main part 10 and the utmost point ear protection part 12 that is used for protecting utmost point ear 2. The tab protecting part 12 is located at one side edge of the insulating sheet main body 10.
The insulating sheet main body 10 is provided with a second bonded portion 11 in the longitudinal direction. The adhesive portions are each provided with glue as the case may be. The insulating sheet is of an integrally formed structure.
Example 2
The utility model provides a naked electric core insulating piece, like fig. 2, this insulating piece includes insulating piece main part 10 and is used for protecting utmost point ear 2's utmost point ear protection portion 12. The tab protecting parts 12 are located at both side edges of the insulation sheet main body 10.
The insulating sheet main body 10 is provided with a second bonded portion 11 in the longitudinal direction. The adhesive portions are each provided with glue as the case may be. The insulating sheet is of an integrally formed structure.
Example 3
The utility model provides a naked electric core insulating piece, like fig. 3, this insulating piece includes insulating piece main part 10 and is used for protecting utmost point ear 2's utmost point ear protection portion 12. The tab protecting parts 12 are located at both side edges of the insulation sheet main body 10.
One side of the tab protection part 12 is provided with a first bonding part, which is a main first bonding part 13. The extending length dimension of the first bonding portion is equal to the extending length dimension of the tab protection portion 12.
The insulating sheet main body 10 is provided with a second bonded portion 11 in the longitudinal direction. The adhesive portions are each provided with glue as the case may be. The insulating sheet is of an integrally formed structure.
Example 4
The utility model provides a naked electric core insulating piece, like figure 4, this insulating piece includes insulating piece main part 10 and is used for protecting utmost point ear 2's utmost point ear protection portion 12. The tab protecting portions 12 are located at both side edges of the insulating sheet main body 10.
First bonding portions, namely a primary first bonding portion 13 and a secondary second bonding portion 14, are provided on both sides of the tab protection portion 12. The extending length dimension of the first bonding portion is equal to the extending length dimension of the tab protection portion 12.
The insulating sheet main body 10 is provided with a second bonded portion 11 in the longitudinal direction. The adhesive portions are each provided with glue as the case may be. The insulating sheet is an integrated structure.
Example 5
The utility model provides a naked electric core insulating piece, like fig. 5, this insulating piece includes insulating piece main part 10 and the utmost point ear protection part 12 that is used for protecting utmost point ear 2. The tab protecting portions 12 are located at both side edges of the insulating sheet main body 10.
First bonding portions, namely a primary first bonding portion 13 and a secondary second bonding portion 14, are provided on both sides of the tab protection portion 12. The extending length dimension of the first bonding portion is greater than the extending length dimension of the tab protecting portion 12.
The insulating sheet main body 10 is provided with a second bonded portion 11 in the longitudinal direction. The adhesive portions are each provided with glue as the case may be. The insulating sheet is of an integrally formed structure.
Example 6
The utility model provides a naked electric core insulating piece, like figure 6, this insulating piece includes insulating piece main part 10 and the utmost point ear protection part 12 that is used for protecting utmost point ear 2. The tab protecting parts 12 are located at both side edges of the insulation sheet main body 10.
First bonding portions, namely a primary first bonding portion 13 and a secondary second bonding portion 14, are provided on both sides of the tab protection portion 12. The extending length dimension of the first bonding portion is smaller than the extending length dimension of the tab protecting portion 12.
The insulating sheet main body 10 is provided with a second bonding portion 11 in the longitudinal direction. The adhesive portions are each provided with glue as the case may be. The insulating sheet is of an integrally formed structure.
Example 7
The utility model provides a battery, as figure 7, this battery includes electric core main part and wraps up the naked electric core insulating piece outside electric core main part, and this battery is equipped with utmost point ear 2, and utmost point ear protection part 12 covers on utmost point ear 2 two sides.
The extension length dimension of the tab protection part 12 is equal to that of the tab 2; the width dimension of the tab protection part 12 is equal to the width dimension of the tab 2.
Example 8
The utility model provides a battery, as fig. 8, this battery includes electric core main part and the naked electric core insulating piece of parcel outside electric core main part, and this battery is equipped with utmost point ear 2, and utmost point ear protection part 12 covers on utmost point ear 2 two sides.
The extension length of the tab protection part 12 is greater than that of the tab 2; the width dimension of the tab protection part 12 is greater than the width dimension of the tab 2.
Example 9
The utility model provides a battery, as figure 9, this battery includes electric core main part and the naked electric core insulating piece of parcel outside electric core main part, and this battery is equipped with utmost point ear 2, and utmost point ear protection part 12 covers on utmost point ear 2 two sides.
The extension length of the tab protection part 12 is smaller than that of the tab 2; the width dimension of the tab protection part 12 is greater than the width dimension of the tab 2.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The naked electric core insulation sheet is characterized by comprising an insulation sheet main body (10) and a tab protection part (12) for protecting a tab (2); the tab protection part (12) is positioned on at least one side edge of the insulation sheet main body (10).
2. The bare cell insulation sheet according to claim 1, wherein at least one side of the tab protection part (12) is provided with a first bonding part, and the first bonding part is located at the edge of the insulation sheet main body (10).
3. The bare cell insulation sheet according to claim 2, wherein the size of the extension a of the first bonding portion away from the insulation sheet main body (10) is greater than, less than or equal to the size of the extension b of the tab protection portion (12) away from the insulation sheet main body (10).
4. A bare cell insulating sheet according to claim 1, wherein the insulating sheet main body (10) is further provided with a second adhesive portion (11), and the second adhesive portion (11) and the first adhesive portion are located at different edges of the insulating sheet main body (10).
5. The bare cell insulating sheet according to any of claims 1-4, wherein the insulating sheet is an integrally formed structure.
6. A battery, characterized in that, this battery includes naked electric core main part and wraps up in electric core main part outside the naked electric core insulating piece of any claim 1-5, utmost point ear protection (12) cover on utmost point ear (2) two sides.
7. A battery according to claim 6, characterized in that the extension of the tab protection (12) is greater than, less than or equal to the extension of the tab (2).
8. A battery according to claim 6, characterized in that the width dimension of the tab protection (12) is greater than or equal to the width dimension of the tab (2).
9. A module comprising a battery according to any of claims 6-8.
10. A battery pack, comprising the module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222475803.5U CN218849728U (en) | 2022-09-19 | 2022-09-19 | Naked electric core insulating piece, battery, module and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222475803.5U CN218849728U (en) | 2022-09-19 | 2022-09-19 | Naked electric core insulating piece, battery, module and battery package |
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| Publication Number | Publication Date |
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| CN218849728U true CN218849728U (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222475803.5U Active CN218849728U (en) | 2022-09-19 | 2022-09-19 | Naked electric core insulating piece, battery, module and battery package |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116505088A (en) * | 2023-06-29 | 2023-07-28 | 深圳市誉辰智能装备股份有限公司 | Vertical insulating piece wrapping machine for battery cell |
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2022
- 2022-09-19 CN CN202222475803.5U patent/CN218849728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116505088A (en) * | 2023-06-29 | 2023-07-28 | 深圳市誉辰智能装备股份有限公司 | Vertical insulating piece wrapping machine for battery cell |
| CN116505088B (en) * | 2023-06-29 | 2023-12-29 | 深圳市誉辰智能装备股份有限公司 | Vertical insulating piece wrapping machine for battery cell |
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