CN102227018A - Low-resistance cylindrical lithium-ion battery cover - Google Patents
Low-resistance cylindrical lithium-ion battery cover Download PDFInfo
- Publication number
- CN102227018A CN102227018A CN2010102403189A CN201010240318A CN102227018A CN 102227018 A CN102227018 A CN 102227018A CN 2010102403189 A CN2010102403189 A CN 2010102403189A CN 201010240318 A CN201010240318 A CN 201010240318A CN 102227018 A CN102227018 A CN 102227018A
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- China
- Prior art keywords
- top cover
- ion battery
- low
- cover
- annular groove
- 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.)
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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 invention relates to the field of lithium ion batteries, and in particular relates to a low-resistance cylindrical lithium-ion battery cover. The cover comprises a top cover and a safe diaphragm, wherein the top cover and the safe diaphragm are integrally connected into a whole by arranging an annular bulge and an annular groove which are matched mutually. The cover has the beneficial effects that the annular bulge and the annular groove which are fitted mutually at the time of stamping are used by the top cover or the safe diaphragm, thus the contact resistance of the battery cover is lower and more stable, thereby reducing the product cost and ensuring the product quality.
Description
Technical field
The present invention and lithium ion battery field, particularly a kind of low-resistance cylindrical shape lithium-ion battery.
Background technology
At present, lithium ion battery is advantage such as high and in light weight because of environmental protection, specific energy, is widely used.For example on notebook computer, almost all use the energy type lithium ion battery, and advance by leaps and bounds especially, the existing trend that comprehensively replaces NI-G and ni-mh in electric bicycle, electric tool and electric automobile field.And the low and stable lithium ion battery of internal resistance is vital to the quick growth in these fields, as China's invention " the cylindrical lithium ion battery battery cover of reduction contact resistance " Granted publication CN201204219Y, a kind of battery cover is disclosed, it is characterized in that between blowout disk, nickel ring and top cover by welding or being riveted together, this invention is owing to adopt the mode of welding to assemble, each assembly is all very thin, tends to each assembly of burn-through, causes the waste of resource.
Summary of the invention
In view of this, the present invention seeks to, make the littler more stable low-resistance cylindrical shape lithium-ion battery of contact resistance of battery cover in order to provide a kind of simple in structure.
For this reason, the invention provides a kind of low-resistance cylindrical shape lithium-ion battery, mainly comprise top cover and blowout disk, annular protrusion by being provided with mutual coupling between described top cover, blowout disk and the annular groove structure that links into an integrated entity.
Preferably, between described top cover, blowout disk, be provided with the nickel ring, annular protrusion by being provided with mutual coupling between described nickel ring and top cover and blowout disk and the annular groove structure that links into an integrated entity.
The invention has the beneficial effects as follows: because top cover or blowout disk adopt annular protrusion and the annular groove that stamps out interlock mutually, make the contact resistance of battery cover become littler more stable, dwindled the cost of product, further guaranteed the quality of product.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a second embodiment of the invention.
Fig. 3 is a third embodiment of the invention.
Fig. 4 is a vertical view of the present invention.
Embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
As Fig. 1～shown in Figure 4, a kind of low-resistance cylindrical shape lithium-ion battery mainly comprises top cover 1, blowout disk 4,4 of described top covers 1, blowout disk annular protrusion 2 and annular groove 3 structure that links into an integrated entity by being provided with mutual coupling; Be provided with nickel ring 5 at described top cover 1,4 of blowout disks, 4 of described nickel ring 5 and top cover 1 and blowout disks 2 of convex annular and annular groove 3 structure that links into an integrated entity by being provided with mutual coupling.Fig. 1 is first kind of embodiment of the present invention, stamp out a circle annular protrusion 2 around the top cover 1, stamp out annular groove 3 on its corresponding location security diaphragm 4, annular protrusion 2 and annular groove 3 complete snapping together have guaranteed the compactness that top cover 1 is connected with blowout disk 4.Fig. 2 is second kind of embodiment of the present invention, and is opposite with first embodiment, stamps out a ring annular groove 3 around top cover, stamps out annular protrusion 2 on its corresponding location security diaphragm 4, can guarantee top cover 1 and blowout disk 4 complete fastenings equally.Fig. 3 is the third embodiment of the present invention, be provided with nickel ring 5 at top cover 1 and 4 of blowout disks, top cover 1 is provided with annular protrusion 2, and is corresponding with it that position nickel ring 5 is provided with the annular groove 3 that mates with annular protrusion 2, can guarantee top cover 1 and blowout disk 4 complete fastenings equally.
The above only is several preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a low-resistance cylindrical shape lithium-ion battery mainly comprises top cover and blowout disk, it is characterized in that: annular protrusion by being provided with mutual coupling between described top cover, blowout disk and the annular groove structure that links into an integrated entity.
2. low-resistance cylindrical shape lithium-ion battery according to claim 1, it is characterized in that: between described top cover, blowout disk, be provided with the nickel ring, annular protrusion by being provided with mutual coupling between described nickel ring and top cover and blowout disk and the annular groove structure that links into an integrated entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102403189A CN102227018A (en) | 2010-07-29 | 2010-07-29 | Low-resistance cylindrical lithium-ion battery cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102403189A CN102227018A (en) | 2010-07-29 | 2010-07-29 | Low-resistance cylindrical lithium-ion battery cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102227018A true CN102227018A (en) | 2011-10-26 |
Family
ID=44807977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102403189A Pending CN102227018A (en) | 2010-07-29 | 2010-07-29 | Low-resistance cylindrical lithium-ion battery cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102227018A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204219Y (en) * | 2008-06-06 | 2009-03-04 | 天津力神电池股份有限公司 | Cylinder lithium ion battery cap for reducing contact resistance |
| CN201536119U (en) * | 2009-11-25 | 2010-07-28 | 深圳市科达利实业有限公司 | Novel lithium cell cover board |
-
2010
- 2010-07-29 CN CN2010102403189A patent/CN102227018A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204219Y (en) * | 2008-06-06 | 2009-03-04 | 天津力神电池股份有限公司 | Cylinder lithium ion battery cap for reducing contact resistance |
| CN201536119U (en) * | 2009-11-25 | 2010-07-28 | 深圳市科达利实业有限公司 | Novel lithium cell cover board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111026 |