CN103137914A - Sealing cover component of button lithium battery - Google Patents
Sealing cover component of button lithium battery Download PDFInfo
- Publication number
- CN103137914A CN103137914A CN2013100502925A CN201310050292A CN103137914A CN 103137914 A CN103137914 A CN 103137914A CN 2013100502925 A CN2013100502925 A CN 2013100502925A CN 201310050292 A CN201310050292 A CN 201310050292A CN 103137914 A CN103137914 A CN 103137914A
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- CN
- China
- Prior art keywords
- cover plate
- lithium battery
- button lithium
- connecting hole
- sealing cover
- 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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- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a sealing cover component of a button lithium battery. The sealing cover component of the button lithium battery comprises a cover plate (2) which is provided with glass insulators (4). A positive electrode column (3) is connected in the glass insulators. The sealing cover component of the button lithium battery is characterized in that a connecting hole (2a) is formed in the cover plate, and solders are arranged inside the connecting hole to connect a negative electrode column (1) with the connecting hole in a welded mode. The sealing cover component of the button lithium battery has the advantages that sealing performance is guaranteed, meanwhile, contact area of the negative electrode column and the cover plate is increased, connection strength between the negative electrode column and the cover plate is improved, and therefore use reliability of the battery is ensured.
Description
Technical field
The present invention relates to the lithium battery field, particularly a kind of seal cover assembly for the sealing button lithium battery.
Background technology
Disposable pillar lithium battery is that the high-tech product that country's popularization is produced can reach 10 years useful life,, stable operating voltage high with its high-energy-density, open circuit voltage, long service life, self-discharge rate be low, store the fine qualities such as life is long, nuisanceless, is widely used in each industrial circle.Disposable pillar lithium battery develops into more than 50 specification kind now, and wherein button lithium battery is also a kind of of column type lithium cell, and its advantage is light and handy, is easy to carry etc., and during use, both positive and negative polarity is inserted on circuit board.
The seal cover assembly of button lithium battery is critical component of button lithium battery, by cap assemblies is pressed in shell, shell with cap assemblies and battery passes through argon arc (or laser) welded seal again, wherein the positive terminal of cap assemblies is sintered in the positive terminal hole of cover plate by glass insulator, and the negative terminal of cap assemblies adopts the form of pressure welding or riveted joint to be connected on cover plate.In use find, adopt between the negative terminal and cover plate of pressure welding connection, little due to contact area, as to have not prison welding phenomenon easily causes battery failure; And adopt between the negative terminal and cover plate of riveting, exist gas leakage, sealing poor, easy loosening phenomenon, thus cause battery failure.
Summary of the invention
The object of the invention is to solve the negative terminal of existing battery cover component and the bonding strength between cover plate and sealing poor, easily cause the problem of battery failure.
The present invention is achieved by the following technical programs:
A kind of seal cover assembly of button lithium battery comprises cover plate, and cover plate is provided with glass insulator, be connected with positive terminal in glass insulator, it is characterized in that also being provided with connecting hole on cover plate, be connected with negative terminal in connecting hole, the cooperation place of negative terminal and connecting hole is provided with scolder it is welded to connect.
Described scolder can be made the kupper solder ring, and it is enclosed within the root that negative terminal is connected with cover plate, by the heating, the fusing the kupper solder ring flow under capillarity in the gap of negative terminal and cover plate, cooling after, connecting hole is fixedly connected with negative terminal.
Described connecting hole can be through hole or blind hole.
Described cover plate can be the rectangle cover plate, also can be circular cover.
Beneficial effect of the present invention is to have increased the contact area of negative terminal and cover plate when guaranteeing sealing, has improved the bonding strength between negative terminal and cover plate, thereby has guaranteed the dependability of battery.
Following constipation closes drawings and Examples, and the present invention is further described.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present invention.
Embodiment
As shown in Figure 1, the seal cover assembly of a kind of button lithium battery provided by the invention, comprise cover plate 2, cover plate is provided with glass insulator 4, is connected with positive terminal 3 in glass insulator, and described cover plate one side is provided with liquid injection hole 5, also be provided with connecting hole 2a on the cover plate opposite side, be provided with negative terminal 1 in connecting hole, negative terminal 1 is provided with the kupper solder ring with the cooperation place of connecting hole 2a, by heating kupper solder ring, negative terminal 1 is fixedly connected with connecting hole 2a.
In sum, the present invention is by negative terminal one end fibre being welded in the connecting hole of cover plate, namely having guaranteed the sealing of negative terminal and cover plate connecting hole, having improved again the bonding strength of negative terminal and cover plate.The present invention can be widely used in the glass sealing series seal cover assemblies such as circle, rectangle.
Claims (3)
1. the seal cover assembly of a button lithium battery, comprise cover plate (2), cover plate is provided with glass insulator (4), is connected with positive terminal (3) in glass insulator, it is characterized in that also being provided with connecting hole (2a) on cover plate, be provided with scolder in connecting hole negative terminal (1) and connecting hole are welded to connect.
2. the seal cover assembly of a kind of button lithium battery according to claim 1, is characterized in that connecting hole (2a) can be through hole or blind hole.
3. the seal cover assembly of a kind of button lithium battery according to claim 1, is characterized in that cover plate (2) can be the rectangle cover plate, also can be circular cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310050292.5A CN103137914B (en) | 2013-02-08 | 2013-02-08 | A kind of seal cover assembly of button lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310050292.5A CN103137914B (en) | 2013-02-08 | 2013-02-08 | A kind of seal cover assembly of button lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103137914A true CN103137914A (en) | 2013-06-05 |
| CN103137914B CN103137914B (en) | 2016-04-13 |
Family
ID=48497445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310050292.5A Active CN103137914B (en) | 2013-02-08 | 2013-02-08 | A kind of seal cover assembly of button lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103137914B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768586A (en) * | 2017-09-28 | 2018-03-06 | 珠海微矩实业有限公司 | Button cell and its device |
| CN109888397A (en) * | 2019-02-26 | 2019-06-14 | 余姚天开能源技术有限公司 | A kind of thermal balance polymer lithium ion secondary battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004186130A (en) * | 2002-10-10 | 2004-07-02 | Shin Kobe Electric Mach Co Ltd | Non-aqueous lithium secondary battery |
| CN202167563U (en) * | 2011-07-26 | 2012-03-14 | 珠海银通新能源有限公司 | Cylindrical lithium-ion power battery |
| CN202434592U (en) * | 2012-01-18 | 2012-09-12 | 蚌埠市立群电子有限公司 | Glass sealing cover unit for primary button lithium battery |
| CN202474054U (en) * | 2012-01-18 | 2012-10-03 | 蚌埠市立群电子有限公司 | Heat-resisting glass sealing cover component for primary cylindrical type lithium battery |
-
2013
- 2013-02-08 CN CN201310050292.5A patent/CN103137914B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004186130A (en) * | 2002-10-10 | 2004-07-02 | Shin Kobe Electric Mach Co Ltd | Non-aqueous lithium secondary battery |
| CN202167563U (en) * | 2011-07-26 | 2012-03-14 | 珠海银通新能源有限公司 | Cylindrical lithium-ion power battery |
| CN202434592U (en) * | 2012-01-18 | 2012-09-12 | 蚌埠市立群电子有限公司 | Glass sealing cover unit for primary button lithium battery |
| CN202474054U (en) * | 2012-01-18 | 2012-10-03 | 蚌埠市立群电子有限公司 | Heat-resisting glass sealing cover component for primary cylindrical type lithium battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768586A (en) * | 2017-09-28 | 2018-03-06 | 珠海微矩实业有限公司 | Button cell and its device |
| CN109888397A (en) * | 2019-02-26 | 2019-06-14 | 余姚天开能源技术有限公司 | A kind of thermal balance polymer lithium ion secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103137914B (en) | 2016-04-13 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200102 Address after: 233010 No. 68, Liugong Avenue, Bengbu City, Anhui Province (No. 1 in Yida Electronics Co., Ltd.) Patentee after: Bengbu Liqun Electronics Co., Ltd. Address before: 233010 No. 68 Liugong Road, hi tech Zone, Anhui, Bengbu Patentee before: Anhui Yida Electronic Co., Ltd. |
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| TR01 | Transfer of patent right |