CN201936958U - High-security column type lithium-ion battery - Google Patents
High-security column type lithium-ion battery Download PDFInfo
- Publication number
- CN201936958U CN201936958U CN201120081764XU CN201120081764U CN201936958U CN 201936958 U CN201936958 U CN 201936958U CN 201120081764X U CN201120081764X U CN 201120081764XU CN 201120081764 U CN201120081764 U CN 201120081764U CN 201936958 U CN201936958 U CN 201936958U
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- CN
- China
- Prior art keywords
- film
- ion battery
- column type
- type lithium
- aluminum hull
- Prior art date
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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
Abstract
The utility model discloses a high-security column type lithium-ion battery which comprises a winding body (1) and an aluminum shell (2), wherein the winding body (1) is positioned in the aluminum shell (2) and comprises a cathode film (3), an anode film (4) and an isolation film (5), and the isolation film (5) is positioned between the anode film (4) and the cathode film (3). The high-security column type lithium-ion battery is characterized in that coatings (6) are coated on the surfaces of the cathode film (3), the anode film (4) and the isolation film (5) respectively, and an explosion-proof hole (9) is formed on a rubber plug (8) at the top of the aluminum shell (2); and one or more explosion-proof lines (7) are arranged on the bottom surface of the aluminum shell (2). The high-security column type lithium-ion battery has the advantages of high safety performance and low cost.
Description
Technical field
The utility model relates to electronic technology field, relates in particular to a kind of battery.
Background technology
Batteries such as the traditional relatively plumbic acid of cylindrical lithium ion battery, ni-mh, NI-G are compared, have in light weight, characteristics such as volume is little, energy density is high, self discharge is little, memory-less effect, environmental friendliness, be widely used in fields such as portable set, communication electrical equipment, toy, electric tool, energy storage.
Present cylindrical lithium ion battery; cathode and anode film and barrier film form a coiling body by reeling; inject flowable state electrolyte; coiling body and box hat shell wall and block weld; seal by mechanical presses and to form, " anti-riot " device of battery is to be finished by one deck thin metal film that is combined on the block, when having that safety is unexpected to be taken place; depended on pressure is washed the effect that anti-riot film reaches release pressure open, plays a protective role.Adopt the cylindrical lithium ion battery of this kind structure; when safety problem takes place; on the one hand; barrier film shrinks can be rapider; the electricity core expands fast; there is the directly possibility of contact in the cathode and anode film; cause internal temperature of battery and pressure sharply to increase, further worsen the inside battery state, on the other hand; outside is the box hat structure; intensity is higher, and only protects by the anti-riot film of layer of metal, can not in time open under the situation of pressure release at diaphragm; be easy to blast and security incident such as burning, and destructive power is very big.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective and the low high security pillar lithium ion battery of a kind of security performance height, cost that provides.
The purpose of this utility model and solve its technical problem underlying and realize by the following technical solutions:
High security pillar lithium ion battery of the present utility model, comprise coiling body, aluminum hull, coiling body is positioned at aluminum hull, coiling body is made of cathodic coating, anode film, barrier film, barrier film is between anode film and cathodic coating, wherein: all there is coat on cathodic coating, anode film, barrier film surface, and the rubber stopper at aluminum hull top is provided with explosionproof hole.
Above-mentioned high security pillar lithium ion battery, wherein: coat is Kynoar and copolymer coat thereof.
Above-mentioned high security pillar lithium ion battery, wherein: the aluminum hull lower surface has one or more explosion-proof line.
The utility model compared with prior art, has tangible beneficial effect, as can be known from the above technical solutions: by behind barrier film, cathodic coating and anode film surface-coated one deck Kynoar and copolymer thereof, be wound on together, produce the coiling body that a barrier film and cathode and anode bond together mutually, form the gel state battery, because electric in-core portion is a gel state, does not have unnecessary mobile electrolyte, when having safety problem to take place, can delay temperature and rate of pressure rise, improve fail safe; The plug of selecting for use the surface that the aluminum hull of one or more explosion-proof line is arranged and explosionproof hole being arranged is as can, has the double protection function, under inner pressure of battery increased to a certain degree situation, the explosion-proof line of aluminum hull or the explosionproof hole of plug can be opened pressure release, improved battery security.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of coiling body;
Fig. 3 Fig. 1 vertical view;
Fig. 4 is Fig. 1 upward view.
Mark among the figure:
1, coiling body; 2, aluminum hull; 3, cathodic coating; 4, anode film; 5, barrier film; 6, coat; 7, explosion-proof line; 8, rubber stopper; 9, explosionproof hole.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and effect thereof to according to the high security pillar lithium ion battery that the utility model proposes are described in detail as follows:
Shown in Fig. 1-4, high security pillar lithium ion battery, comprise coiling body 1, aluminum hull 2, coiling body 1 is positioned at aluminum hull 2, coiling body 1 is made of cathodic coating 3, anode film 4, barrier film 5, and barrier film 5 is between anode film 4 and cathodic coating 3, wherein: all there is coat 6 on cathodic coating 3, anode film 4, barrier film 5 surfaces, the rubber stopper 8 at aluminum hull 2 tops is provided with explosionproof hole 9, and aluminum hull 2 lower surface are provided with one or more explosion-proof line 7.。
During manufacturing, cathodic coating 3, anode film 4, barrier film 5 bond together mutually by macromolecule and copolymer coat 6 thereof and form a coiling body, form a gel state system after injecting electrolyte, the aluminum hull 2 of packing into, seal with rubber stopper, seal by mechanical presses aluminum hull and rubber stopper and form.
Described in the utility modelly be not limited to the embodiment described in the embodiment, those skilled in the art draw other execution mode according to the technical solution of the utility model, belong to technological innovation scope of the present utility model equally.Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (3)
1. high security pillar lithium ion battery, comprise coiling body (1), aluminum hull (2), coiling body (1) is positioned at aluminum hull (2), coiling body (1) is made of cathodic coating (3), anode film (4), barrier film (5), barrier film (5) is positioned between anode film (4) and the cathodic coating (3), it is characterized in that: all there is coat (6) on cathodic coating (3), anode film (4), barrier film (5) surface, and the rubber stopper (8) at aluminum hull (2) top is provided with explosionproof hole (9).
2. a kind of high security pillar lithium ion battery as claimed in claim 1 is characterized in that: aluminum hull (2) lower surface is provided with one or more explosion-proof line (7).
3. a kind of high security pillar lithium ion battery as claimed in claim 1 is characterized in that: coat (6) is Kynoar and copolymer coat thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120081764XU CN201936958U (en) | 2011-03-25 | 2011-03-25 | High-security column type lithium-ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120081764XU CN201936958U (en) | 2011-03-25 | 2011-03-25 | High-security column type lithium-ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936958U true CN201936958U (en) | 2011-08-17 |
Family
ID=44448471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120081764XU Expired - Lifetime CN201936958U (en) | 2011-03-25 | 2011-03-25 | High-security column type lithium-ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633259A (en) * | 2012-08-20 | 2014-03-12 | 宁波康顺电子科技有限公司 | PP plastic housing lithium ion battery |
-
2011
- 2011-03-25 CN CN201120081764XU patent/CN201936958U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633259A (en) * | 2012-08-20 | 2014-03-12 | 宁波康顺电子科技有限公司 | PP plastic housing lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170401 Address after: 551700 Bijie Bijie Economic Development Zone, small and micro Venture Park, 3, K5 building plant Patentee after: Guizhou Amperex Technology Limited Patentee after: Guizhou Aerospace Power Science & Technology Co., Ltd. Address before: Magicstor Industrial Park No. 126 550018 Guizhou province Guiyang city Wudang District high road Patentee before: Guizhou Aerospace Power Science & Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |