CN112864524A - Lithium battery shell and lithium battery - Google Patents
Lithium battery shell and lithium battery Download PDFInfo
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- CN112864524A CN112864524A CN202110017967.0A CN202110017967A CN112864524A CN 112864524 A CN112864524 A CN 112864524A CN 202110017967 A CN202110017967 A CN 202110017967A CN 112864524 A CN112864524 A CN 112864524A
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- negative pole
- cover plate
- positive
- lithium battery
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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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- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a lithium battery shell which comprises a shell body, an anode cover plate and a cathode cover plate, wherein the anode cover plate and the cathode cover plate are respectively fixed on two sides of the shell body, the anode cover plate comprises an anode cover plate body, an anode connecting sheet, an anode seat and an anode column, and the cathode cover plate comprises a cathode cover plate body, a cathode connecting sheet, a cathode seat and a cathode column. The invention has the advantages that through the arrangement of the positive pole column and the negative pole column and the connection of the positive pole column and the negative pole column with the positive pole connecting sheet and the negative pole connecting sheet respectively, the overcurrent capacity of the positive pole cover plate and the negative pole cover plate is greatly improved, the heating is not easy, the safety coefficient is high, and the requirements of a power type battery on high-rate charging and discharging can be met.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a lithium battery shell and a lithium battery.
Background
With the progress of economic globalization and the increasing demand for energy, finding new energy storage devices has become a focus of attention in the field related to new energy. The lithium battery is a battery system with better comprehensive performance at present, has the characteristics of high specific energy, long cycle life, small volume, light weight, no memory effect, no pollution and the like, is rapidly developed into a new generation of energy storage power supply, and is used for power support in the fields of information technology, electric vehicles, hybrid vehicles, aerospace and the like. The lithium battery has the advantages of high voltage, long service life, high energy density, portability and the like, and the application field of the lithium battery is continuously expanded.
Along with the continuous development of lithium battery new energy technology, China and even the world raise the development and development wave of lithium battery related industries, and the research on novel lithium battery shells is also an important aspect of the novel lithium battery shells, for example, Chinese utility model patent publication No. CN208608262U discloses a dustproof and anti-leakage lithium battery shell. At present, when a conventional lithium battery large structure is charged and discharged at a large current, explosion accidents are easy to happen due to serious heating caused by lack of overcurrent capacity of a cover plate, and the safety coefficient is low.
Disclosure of Invention
The invention aims to solve the technical problem of how to improve the overflowing capacity and the safety coefficient of the cover plate.
In order to solve the technical problems, the invention provides the following technical scheme:
a lithium battery shell comprises a shell body, a positive electrode cover plate and a negative electrode cover plate, wherein the positive electrode cover plate and the negative electrode cover plate are fixed on two sides of the shell body respectively.
The positive pole apron includes anodal apron body, anodal connection piece, anodal seat and anodal post, the anodal apron body is fixed in casing body one side, the inside one side of anodal apron body near the casing body is fixed anodal connection piece, the inside one side of casing body is kept away from to the anodal apron body is fixed the anodal seat, the anodal post runs through anodal seat and this body coupling of anodal apron in proper order the anodal connection piece.
The negative pole apron includes negative pole apron body, negative pole connection piece, negative pole seat and negative pole post, the negative pole apron body is fixed in the casing body one side of keeping away from anodal apron, the negative pole apron body is close to the inside one side of casing body and fixes the negative pole connection piece, the negative pole apron body is kept away from the inside one side of casing body and is fixed the negative pole seat, the negative pole post runs through negative pole seat and this body coupling of negative pole apron in proper order the negative pole connection piece.
Through the setting of anodal post and negative pole post and anodal post and negative pole post respectively with the connection of positive pole connection piece and negative pole connection piece, improved anodal apron and negative pole cover plate's ability of overflowing greatly, be difficult for generating heat, factor of safety is high to can also satisfy the demand that power type battery charges and discharges to big multiplying power.
Preferably, the number of the positive posts is two, and the two positive posts are respectively arranged at two ends of the positive seat.
Preferably, the number of the negative pole posts is two, and the two negative pole posts are respectively arranged at two ends of the negative pole seat.
Preferably, all be provided with explosion-proof hole on anodal apron body and the negative pole apron body, explosion-proof valve is fixed with in the explosion-proof hole, realizes the internal overvoltage protection of casing.
Preferably, all be provided with on positive pole apron body and the negative pole apron body and annotate the liquid hole, when annotating the liquid to casing body inside, annotate the internal evacuation of liquid hole pair casing through one, another annotates the liquid hole and annotates the liquid, has improved and has annotated liquid efficiency.
Preferably, plastic gaskets are arranged between the positive cover plate body and the positive seat and between the negative cover plate body and the negative seat.
Preferably, the positive pole is made of an aluminum material, and the negative pole is made of a copper material with nickel plated on the surface.
Preferably, the positive connecting piece is made of aluminum materials, and the negative connecting piece is made of red copper materials.
Preferably, the positive electrode cover plate body and the negative electrode cover plate body are both made of aluminum materials.
Preferably, the invention also discloses a lithium battery, which comprises a lithium battery shell, a winding core, a positive winding core lug and a negative winding core lug, wherein the winding core is arranged in the shell body, and two ends of the winding core are respectively connected with the positive connecting sheet and the negative connecting sheet through the positive winding core lug and the negative winding core lug.
Compared with the prior art, the invention has the beneficial effects that:
1. through the setting of anodal post and negative pole post and anodal post and negative pole post respectively with the connection of positive pole connection piece and negative pole connection piece, improved anodal apron and negative pole cover plate's ability of overflowing greatly, be difficult for generating heat, factor of safety is high to can also satisfy the demand that power type battery charges and discharges to big multiplying power.
2. Through the setting of explosion-proof valve, realize the inside overvoltage protection of casing body.
3. All be provided with on anodal apron body and the negative pole apron body and annotate the liquid hole, when annotating the liquid to casing body inside, annotate the internal evacuation of liquid hole pair casing through one, another notes liquid hole is annotated liquid, has improved and has annotated liquid efficiency.
Drawings
Fig. 1 is a sectional view of a lithium battery case according to an embodiment of the present invention;
FIG. 2 is a front view of a positive cover plate according to an embodiment of the present invention;
FIG. 3 is a front view of a negative cover plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a lithium battery according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a lithium battery in accordance with an embodiment of the present invention.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless explicitly stated or limited otherwise, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 3, the present embodiment discloses a lithium battery case, which includes a case body 1, a positive cover plate 2 and a negative cover plate 3, wherein the positive cover plate 2 and the negative cover plate 3 are respectively fixed on two sides of the case body 1.
Anodal apron 2 includes anodal apron body 21, anodal connection piece 22, anodal seat 23 and anodal post 24, anodal apron body 21 is fixed in 1 one side of casing body, anodal apron body 21 is close to the inside one side of casing body and fixes anodal connection piece 22, anodal apron body 21 is kept away from the inside one side of casing body and is fixed anodal seat 23, anodal post 24 runs through anodal seat 23 and the connection of anodal apron body 21 in proper order anodal connection piece 22, in this embodiment, anodal post 24 is two, and sets up the both ends at anodal seat 23 respectively.
Through the setting of positive post 24 and negative pole post 34 and positive post 24 and negative pole post 34 respectively with anodal connection piece 22 and negative pole connection piece 32 be connected, improved anodal apron 2 and negative pole apron 3's ability of overflowing greatly, be difficult for generating heat, factor of safety is high to can also satisfy the demand that power type battery charges and discharges to big multiplying power.
Both ends of the positive electrode cover plate body 21 and the negative electrode cover plate body 31 are provided with explosion-proof holes 4, and explosion-proof valves 5 are fixed in the explosion-proof holes 4, so that the internal overvoltage protection of the shell body 1 is realized.
All be provided with on anodal apron body 21 and the negative pole apron body 31 and annotate liquid hole 6, specifically, when annotating liquid to casing body 1 is inside, annotate liquid hole 6 through one and to the evacuation in the casing body 1, another annotates liquid hole 6 and annotates liquid, has improved notes liquid efficiency.
And plastic gaskets 7 are arranged between the positive cover plate body 21 and the positive seat 23 and between the negative cover plate body 31 and the negative seat 33.
In the present embodiment, the positive post 24 is made of aluminum; the negative pole column 24 is made of copper material with nickel plated surface; the positive connecting piece 22 is made of aluminum material, and the negative connecting piece 32 is made of red copper material; the positive electrode cover plate body 21 and the negative electrode cover plate body 31 are both made of aluminum materials, so that current conduction is realized.
Referring to fig. 4 and 5, this embodiment still provides a lithium battery, including lithium battery shell, roll up core 8, anodal core utmost point ear 9 and the negative pole core utmost point ear 10 of rolling up, roll up core 8 and establish inside casing body 1, roll up core 8 both ends and roll up core utmost point ear 10 and be connected with anodal connection piece 22 and negative pole connection piece 32 through anodal core utmost point ear 9 and negative pole respectively.
The working principle of the embodiment is as follows: to roll up core 8 and put into inside casing body 1, and roll up core utmost point ear 9 and negative pole and roll up core utmost point ear 10 and be connected with anodal connection piece 22 and negative pole connection piece 32 through anodal core, then annotate the interior evacuation of liquid hole 6 to casing body 1 through one, another annotates liquid hole 6 and annotates liquid, accomplish the assembly of this lithium cell, when this lithium cell charge-discharge, because anodal post 24 and negative pole post 34 are connected with anodal connection piece 22 and negative pole respectively 32, the ability of overflowing of positive apron 2 and negative pole apron 3 has been improved, difficult heating, safety factor is high, the service life of lithium cell has been improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above-mentioned embodiments only represent embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the concept of the present invention, and these embodiments are all within the protection scope of the present invention.
Claims (10)
1. A lithium battery case characterized in that: the battery shell comprises a shell body, a positive cover plate and a negative cover plate, wherein the positive cover plate and the negative cover plate are respectively fixed on two sides of the shell body;
the positive cover plate comprises a positive cover plate body, a positive connecting piece, a positive seat and a positive post, the positive cover plate body is fixed on one side of the shell body, the positive connecting piece is fixed on one side of the positive cover plate body close to the interior of the shell body, the positive seat is fixed on one side of the positive cover plate body far away from the interior of the shell body, and the positive post sequentially penetrates through the positive seat and the positive cover plate body to be connected with the positive connecting piece;
the negative pole apron includes negative pole apron body, negative pole connection piece, negative pole seat and negative pole post, the negative pole apron body is fixed in the casing body one side of keeping away from anodal apron, the negative pole apron body is close to the inside one side of casing body and fixes the negative pole connection piece, the negative pole apron body is kept away from the inside one side of casing body and is fixed the negative pole seat, the negative pole post runs through negative pole seat and this body coupling of negative pole apron in proper order the negative pole connection piece.
2. A lithium battery cell casing as claimed in claim 1, characterized in that: the number of the positive posts is two, and the two positive posts are respectively arranged at two ends of the positive seat.
3. A lithium battery cell casing as claimed in claim 1, characterized in that: the number of the negative pole posts is two, and the two negative pole posts are respectively arranged at two ends of the negative pole seat.
4. A lithium battery cell casing as claimed in claim 1, characterized in that: and explosion-proof holes are formed in the anode cover plate body and the cathode cover plate body, and explosion-proof valves are fixed in the explosion-proof holes.
5. A lithium battery cell casing as claimed in claim 1, characterized in that: and liquid injection holes are formed in the positive cover plate body and the negative cover plate body.
6. A lithium battery cell casing as claimed in claim 1, characterized in that: and plastic gaskets are arranged between the positive cover plate body and the positive seat and between the negative cover plate body and the negative seat.
7. A lithium battery cell casing as claimed in claim 1, characterized in that: the positive pole column is made of an aluminum material, and the negative pole column is made of a copper material with nickel plated on the surface.
8. A lithium battery cell casing as claimed in claim 1, characterized in that: the positive connecting piece is made of aluminum materials, and the negative connecting piece is made of red copper materials.
9. A lithium battery cell casing as claimed in claim 1, characterized in that: the positive electrode cover plate body and the negative electrode cover plate body are both made of aluminum materials.
10. A lithium battery, characterized in that: including adopting lithium battery shell, book core, anodal book core utmost point ear and the negative pole book core utmost point ear of any one of claims 1-9, it establishes inside the casing body to roll up the core, it rolls core utmost point ear and is connected with positive connection piece and negative pole connection piece through anodal book core utmost point ear and negative pole respectively to roll up the core both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017967.0A CN112864524A (en) | 2021-01-07 | 2021-01-07 | Lithium battery shell and lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017967.0A CN112864524A (en) | 2021-01-07 | 2021-01-07 | Lithium battery shell and lithium battery |
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| Publication Number | Publication Date |
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| CN112864524A true CN112864524A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110017967.0A Pending CN112864524A (en) | 2021-01-07 | 2021-01-07 | Lithium battery shell and lithium battery |
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| CN (1) | CN112864524A (en) |
Citations (11)
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| CN201340879Y (en) * | 2008-12-23 | 2009-11-04 | 天津力神电池股份有限公司 | Round lithium ion battery |
| CN201708214U (en) * | 2010-05-24 | 2011-01-12 | 荆门市恒生源电子科技有限公司 | Square lithium ion battery with difficult-disconnection and difficult-looseness electric core electrode posts |
| CN102035020A (en) * | 2010-11-23 | 2011-04-27 | 天津力神电池股份有限公司 | Novel lager-capacity lithium ion battery |
| CN201838670U (en) * | 2010-10-10 | 2011-05-18 | 荆门市恒生源电子科技有限公司 | Lithium iron phosphate battery |
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| US20120328932A1 (en) * | 2011-06-22 | 2012-12-27 | Min-Hyung Guen | Rechargeable battery and method for manufacturing the same |
| CN207800665U (en) * | 2018-02-01 | 2018-08-31 | 宁德时代新能源科技股份有限公司 | The cap assembly and secondary cell of secondary cell |
| CN208284552U (en) * | 2018-06-01 | 2018-12-25 | 苏州安靠电源有限公司 | The uniform end face weld battery of fluid injection |
| CN208400966U (en) * | 2018-05-29 | 2019-01-18 | 江西中汽瑞华新能源科技有限公司 | A kind of high-capacity cylindrical serondary lithium battery |
| CN208570805U (en) * | 2018-06-01 | 2019-03-01 | 苏州安靠电源有限公司 | A kind of end face weld battery convenient for fluid injection |
| CN111354919A (en) * | 2020-04-01 | 2020-06-30 | 湖北亿纬动力有限公司 | Battery, liquid injection method of battery and battery module |
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2021
- 2021-01-07 CN CN202110017967.0A patent/CN112864524A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201340879Y (en) * | 2008-12-23 | 2009-11-04 | 天津力神电池股份有限公司 | Round lithium ion battery |
| CN201708214U (en) * | 2010-05-24 | 2011-01-12 | 荆门市恒生源电子科技有限公司 | Square lithium ion battery with difficult-disconnection and difficult-looseness electric core electrode posts |
| CN201838670U (en) * | 2010-10-10 | 2011-05-18 | 荆门市恒生源电子科技有限公司 | Lithium iron phosphate battery |
| CN102035020A (en) * | 2010-11-23 | 2011-04-27 | 天津力神电池股份有限公司 | Novel lager-capacity lithium ion battery |
| CN201877530U (en) * | 2010-11-23 | 2011-06-22 | 天津力神电池股份有限公司 | Lithium ion power battery with bidirectional current collectors |
| US20120328932A1 (en) * | 2011-06-22 | 2012-12-27 | Min-Hyung Guen | Rechargeable battery and method for manufacturing the same |
| CN207800665U (en) * | 2018-02-01 | 2018-08-31 | 宁德时代新能源科技股份有限公司 | The cap assembly and secondary cell of secondary cell |
| CN208400966U (en) * | 2018-05-29 | 2019-01-18 | 江西中汽瑞华新能源科技有限公司 | A kind of high-capacity cylindrical serondary lithium battery |
| CN208284552U (en) * | 2018-06-01 | 2018-12-25 | 苏州安靠电源有限公司 | The uniform end face weld battery of fluid injection |
| CN208570805U (en) * | 2018-06-01 | 2019-03-01 | 苏州安靠电源有限公司 | A kind of end face weld battery convenient for fluid injection |
| CN111354919A (en) * | 2020-04-01 | 2020-06-30 | 湖北亿纬动力有限公司 | Battery, liquid injection method of battery and battery module |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210528 |