CN201741746U - Metal shell lithium ion battery terminal structure - Google Patents
Metal shell lithium ion battery terminal structure Download PDFInfo
- Publication number
- CN201741746U CN201741746U CN2010202464671U CN201020246467U CN201741746U CN 201741746 U CN201741746 U CN 201741746U CN 2010202464671 U CN2010202464671 U CN 2010202464671U CN 201020246467 U CN201020246467 U CN 201020246467U CN 201741746 U CN201741746 U CN 201741746U
- Authority
- CN
- China
- Prior art keywords
- terminal
- lithium ion
- ion battery
- square
- sealing member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a metal shell lithium ion battery terminal structure, which is characterized in that the combined section of the terminal of the structure and the battery cover is in a square shape, the terminal output hole of the cover is a square hole, a gap is left between the square hole and the terminal, the combined part of the terminal, the battery cover and the terminal fastener is provided with an upper sealing member and a lower sealing member which have square holes, and the square convex plate on the bottom of the upper sealing member is arranged in the gap. The upper sealing member and the lower sealing member are made of polytetrafluoroethylene. The structure is used in the metal shell lithium ion battery, can prevent the terminal from rotating after being forced, has good sealing and insulating property, can resist acid, alkali and high temperature, and therefore can effectively improve the operational performance and service life of the battery.
Description
Technical field
The utility model relates to a kind of accumulator terminal structure, particularly metallic hard case lithium ion battery terminal structure.
Background technology
Lithium ion battery occupies critical role in the secondary cell field, in all aqueous solution power supply systems, lithium-ions battery relies on its higher operating voltage, advantage such as heavy-current discharge performance and high energy density has been widely used in fields such as stand-by power supply, energy conservation, power source preferably.
The lithium-ions battery technology is quite ripe now, and the particularly generation of metallic hard case lithium ion battery makes people more convenient succinct aspect the use connection.But because lithium ion battery is avoided water especially, electrolyte corrosivity is big, and it is stressed that the terminal of duricrust lithium ion battery needs often connection in addition, and must bear the high temperature of hundreds of degree, usually the sealing failure because of terminal causes extraneous moisture gas to enter inside battery, causes the product global failure.
Existing metallic hard case lithium ion battery terminal is installed in the circular delivery outlet of cell cover, easily rotate when stressed, can only bear less moment of torsion, it is unreliable to seal, and the seal in the terminal structure adopts general part, its insulation effect and corrosion-resistant, high-temperature resistant result is relatively poor, thereby influences the serviceability and the life-span of battery.
The utility model content
The purpose of this utility model is to provide a kind of sealing, good insulation preformance, and withstand corrosion, high temperature resistant, thereby improves the battery serviceability and the metallic hard case lithium ion battery terminal structure in life-span.
The technical solution of the utility model is: metallic hard case lithium ion battery terminal structure, comprise terminal, the terminal securing member, terminal sealing spare and cell cover, its improvements are that the cross section of the adapter section of terminal and cell cover is square, the terminal delivery outlet of cell cover is a square hole, and it is gapped between this square hole and the terminal, described terminal sealing spare is made up of last seal and lower seal, all there is the square hole that matches with the adapter section of above-mentioned terminal at the middle part of two seals, and there are a square boss, this boss to pack in the terminal delivery outlet and the gap between the terminal of cell cover around the square hole of last seal bottom.
Described terminal upper center is provided with the outer outer attachment screw that connects screw and cooperate with it; Described upward seal and lower seal are the polytetrafluoroethylene material.
According to above technical scheme, the adapter section of the terminal delivery outlet of cell cover and terminal all is designed to squarely in the utility model, in assembling and use, guarantees can not rotate when terminal is stressed, can bear than high pulling torque, and sealing reliably; After the terminal securing member screwed, the boss of last seal was pressed in the gap between terminal and the loam cake, guaranteed that insulation is reliable between terminal and the loam cake.And seal adopts the polytetrafluoroethylene material, can be acidproof, alkaline-resisting, bear 300 ℃ high temperature, before the battery container seam, upper and lower seal is that pine is enclosed within on the terminal in addition, be not adjacent to the too high-temperature that has produced when yet having avoided the housing seam with cell cover.The terminal upper end is provided with outer attachment screw, makes that then battery is easy to connect.Adopt this terminal structure, can effectively improve the serviceability and the life-span of metallic hard case lithium ion battery.
Description of drawings
Accompanying drawing is the utility model assembling schematic diagram.
Embodiment
Referring to accompanying drawing, terminal 8 is clamped on the cell cover 5 by the terminal securing member 3 that is threaded, binding site is equipped with seal 6 and lower seal 7, two seals middle part is a square hole, the adapter section that the terminal delivery outlet of cell cover and terminal pass through this hole is all square, and it is gapped between the two, one square boss is arranged around the bottom square hole of last seal 6, this boss is packed in the above-mentioned gap, the terminal upper center is provided with outer outer attachment screw 1 and the packing ring 2 that connects screw and cooperate with it, between terminal securing member and the last seal packing ring 4 is arranged.Upper and lower seal is all the polytetrafluoroethylene material, and material was a copper when terminal and terminal securing member were used for the electrode negative pole, and material is an aluminium when being used for anode.
Claims (3)
1. metallic hard case lithium ion battery terminal structure, comprise terminal, the terminal securing member, terminal sealing spare and cell cover, the cross section that it is characterized in that the adapter section of terminal and cell cover is square, the terminal delivery outlet of cell cover is a square hole, and it is gapped between this square hole and the terminal, described terminal sealing spare is made up of last seal and lower seal, all there is the square hole that matches with the adapter section of above-mentioned terminal at the middle part of two seals, and there are a square boss, this boss to pack in the terminal delivery outlet and the gap between the terminal of cell cover around the square hole of last seal bottom.
2. by the described metallic hard case lithium ion battery of claim 1 terminal structure, it is characterized in that described terminal upper center is provided with the outer outer attachment screw that connects screw and cooperate with it.
3. by the described metallic hard case lithium ion battery of claim 1 terminal structure, it is characterized in that described upward seal and lower seal are the polytetrafluoroethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202464671U CN201741746U (en) | 2010-06-30 | 2010-06-30 | Metal shell lithium ion battery terminal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202464671U CN201741746U (en) | 2010-06-30 | 2010-06-30 | Metal shell lithium ion battery terminal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201741746U true CN201741746U (en) | 2011-02-09 |
Family
ID=43557023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202464671U Expired - Fee Related CN201741746U (en) | 2010-06-30 | 2010-06-30 | Metal shell lithium ion battery terminal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201741746U (en) |
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2010
- 2010-06-30 CN CN2010202464671U patent/CN201741746U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20110630 |