CN202549967U - Connection mode of multiple polar lugs and cover plate of power lithium-ion battery - Google Patents
Connection mode of multiple polar lugs and cover plate of power lithium-ion battery Download PDFInfo
- Publication number
- CN202549967U CN202549967U CN2012200759653U CN201220075965U CN202549967U CN 202549967 U CN202549967 U CN 202549967U CN 2012200759653 U CN2012200759653 U CN 2012200759653U CN 201220075965 U CN201220075965 U CN 201220075965U CN 202549967 U CN202549967 U CN 202549967U
- Authority
- CN
- China
- Prior art keywords
- lug
- cover plate
- length
- welded
- electric core
- 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 - Lifetime
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Classifications
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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 connection mode of multiple polar lugs and a cover plate of a power lithium-ion battery. A plurality of polar lugs led from both ends of a battery cell are welded on polar lugs which are slightly longer. The polar lugs which are slightly longer are welded on the cover plate or a connecting piece of the cover plate. The connection mode of the multiple polar lugs and the cover plate of the power lithium-ion battery provided by the utility model has the technical benefits that the problems of falling, cold solder joint and spot welding of polar lugs can be effectively solved, the safety performance of the battery is improved, and the connecting quantity of battery cells is increased.
Description
Technical field
The utility model relates to a kind of lithium-ion-power cell lug and cover plate connected mode, relates in particular to the connected mode of multipole ear of a kind of lithium-ion-power cell and cover plate.
Background technology
Lithium-ion-power cell lug and cover plate method of attachment at present all is directly with welding equipment with the lug welding on the cover board; Perhaps lug is directly welded on the brace on the cover plate; During the welding of multipole ear generally be adopt range upon range of mode weld on the cover board or the brace of cover plate on, and electric core number of connection is limited.The problem that adopts above lug and cover plate welding method to exist is: 1, after the multipole ear welding; When folding anode ear or carry out other when having the behavior of pullling solder side; Can be directly to the solder side effect, be prone to the phenomenon that causes solder side to come off, make the security performance of battery reduce greatly.2, laminating method is adopted in multipole ear welding, for reducing lug obscission, the limited amount of general electric core.3, the range upon range of welding of multipole ear on the cover board or on the cover plate brace, the easy phenomenons such as rosin joint, spot welding that take place cause the internal resistance of cell to increase.
Summary of the invention
The purpose of the utility model is to provide the connected mode of multipole ear of a kind of lithium-ion-power cell and cover plate; Solved that multipole ear of existing lithium-ion-power cell and cover plate ever-present lug of when welding comes off, lug rosin joint, spot welding, problem such as electric core number of connection is limited.
The utility model is realized like this; The connected mode of multipole ear of a kind of lithium-ion-power cell and cover plate; It comprises the lug that electric core, lug, length are long slightly; It is characterized in that: a plurality ofly be welded on the long slightly lug of length from the double-end lug of electric core, the long slightly lug welding of length is on the cover board or on the brace of cover plate.
Said all electric core numbers are odd number.
Said a plurality of lug is welded on the long slightly lug of length, and welding method can be ultrasonic bonding, resistance welded or laser welding.
Said a plurality ofly be welded on the long slightly lug of length from the double-end lug of electric core, the lug width should be less than length long ear-pole width, i.e. W > slightly; W
1, W>W
2
The technique effect of the utility model is: can solve effectively that lug comes off, lug rosin joint, spot welding, improve the security performance of battery, increase the number of connection of electric core.
Description of drawings
Fig. 1 is the texture edge sketch map of the utility model.
The long slightly electric core 3-1 of three-dimensional spacer ring 2, electric core 2-1, lug 3, lug length, lug 4, electric core 4-1, lug that length is long slightly in the drawings, 1.
The practical implementation case
As shown in Figure 1; The utility model is realized like this; Pass three-dimensional spacer ring 1 from electric core 2 with electric core 4 double-end lug 2-1 and lug 4-1 and be welded on the long slightly lug 3-1 of length, the lug 3-1 that lug length is grown electric core 3 slightly is welded on the brace of cover plate.
In the foregoing description; As shown in Figure 1; Lug 2-1 and lug 4-1 through ultrasonic bonding, resistance welded or laser welding etc. and length slightly long ear-pole 3-1 weld together; Length long ear-pole 3-1 slightly is welded on the cover plate brace, and the width of lug 2-1 and lug 4-1 is less than the length width of long ear-pole 4-1, i.e. W > slightly; W
1, W>W
2
Claims (4)
1. the connected mode of multipole ear of lithium-ion-power cell and cover plate; It comprises the lug that electric core, lug, length are long slightly; It is characterized in that: a plurality ofly be welded on the long slightly lug of length from the double-end lug of electric core, the long slightly lug welding of length is on the cover board or on the brace of cover plate.
2. the connected mode of multipole ear of lithium-ion-power cell according to claim 1 and cover plate is characterized in that: said all electric core numbers are odd number.
3. the connected mode of multipole ear of lithium-ion-power cell according to claim 1 and cover plate is characterized in that: said a plurality of lugs are welded on the long slightly lug of length, and welding method can be ultrasonic bonding, resistance welded or laser welding.
4. according to the connected mode of multipole ear of the said lithium-ion-power cell of claim 1 and cover plate, it is characterized in that: said a plurality ofly be welded on the long slightly lug of length from the double-end lug of electric core, the lug width should be less than length long ear-pole width, i.e. W > slightly; W
1, W>W
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200759653U CN202549967U (en) | 2012-03-03 | 2012-03-03 | Connection mode of multiple polar lugs and cover plate of power lithium-ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200759653U CN202549967U (en) | 2012-03-03 | 2012-03-03 | Connection mode of multiple polar lugs and cover plate of power lithium-ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549967U true CN202549967U (en) | 2012-11-21 |
Family
ID=47170545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200759653U Expired - Lifetime CN202549967U (en) | 2012-03-03 | 2012-03-03 | Connection mode of multiple polar lugs and cover plate of power lithium-ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549967U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552432A (en) * | 2016-03-18 | 2016-05-04 | 天津力神电池股份有限公司 | Multi-cathode-lug cylindrical lithium ion battery |
| CN109196684A (en) * | 2016-05-26 | 2019-01-11 | 雅马哈发动机株式会社 | Power storage module |
| CN109565027A (en) * | 2016-07-28 | 2019-04-02 | 三洋电机株式会社 | Secondary cell and its manufacturing method |
-
2012
- 2012-03-03 CN CN2012200759653U patent/CN202549967U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552432A (en) * | 2016-03-18 | 2016-05-04 | 天津力神电池股份有限公司 | Multi-cathode-lug cylindrical lithium ion battery |
| CN109196684A (en) * | 2016-05-26 | 2019-01-11 | 雅马哈发动机株式会社 | Power storage module |
| CN109565027A (en) * | 2016-07-28 | 2019-04-02 | 三洋电机株式会社 | Secondary cell and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Utility Power Source Co., Ltd. Assignor: Ji'an City Youteli Technology Co., Ltd. Contract record no.: 2014440020316 Denomination of utility model: Connection mode of multiple polar lugs and cover plate of power lithium-ion battery Granted publication date: 20121121 License type: Exclusive License Record date: 20140822 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |