CN101944575A - Secondary lithium battery - Google Patents
Secondary lithium battery Download PDFInfo
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- CN101944575A CN101944575A CN201010279325XA CN201010279325A CN101944575A CN 101944575 A CN101944575 A CN 101944575A CN 201010279325X A CN201010279325X A CN 201010279325XA CN 201010279325 A CN201010279325 A CN 201010279325A CN 101944575 A CN101944575 A CN 101944575A
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- lithium battery
- housing
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- cover plate
- circle
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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)
- Gas Exhaust Devices For Batteries (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a secondary lithium battery which can effectively solve the problem of the exorbitant internal resistance of the existing secondary lithium battery. The secondary lithium battery comprises a negative terminal, a negative collecting ring, a rolled core, a positive collecting ring, a positive terminal, a cover plate and a casing, wherein the casing is provided with a accommodation cavity; the positive collecting ring, the rolled core and the negative collecting ring are successively connected from top to bottom in the accommodation cavity; the cover plate is arranged in the accommodation cavity on the negative collecting ring; the positive terminal is arranged on the bottom end of the casing; the positive terminal and the casing are manufactured as a whole; the positive terminal is connected with the positive collecting ring; the negative terminal is arranged on the cover plate on the top end of the casing; and the negative terminal is connected with the negative collecting ring. The invention has the advantages that the whole product has smaller weight, and the positive terminal and the casing are manufactured as a whole, thus omitting the welding technology and lowering the internal resistance of the battery and the production cost.
Description
Technical field
The present invention relates to a kind of serondary lithium battery.
Background technology
The positive terminal block of existing serondary lithium battery, housing all adopt iron nickel plating, anodal matrix adopting aluminum data, the copper data of negative pole matrix adopting, negative lug and negative pole currect collecting circle adopt nickel, the entire cell quality is with heavier like this, and because the material difference of each parts, it is very big to cause welding difficulty, the internal resistance that has increased battery.
Summary of the invention
The object of the present invention is to provide a kind of serondary lithium battery, can effectively solve the existing too high problem of serondary lithium battery internal resistance.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: a kind of serondary lithium battery, comprise negative terminal, the negative pole currect collecting circle, the volume core, the anode collection circle, positive terminal, cover plate, housing, described housing has placed cavity, be connected with the anode collection circle in the described placed cavity from the bottom to top in turn, the volume core, the negative pole currect collecting circle, described cover plate is arranged in the placed cavity on the negative pole currect collecting circle, described positive terminal is arranged on the bottom of housing, described positive terminal and housing are integrally manufactured, described positive terminal is connected with the anode collection circle, described negative terminal is arranged on the cover plate on housing top, and described negative terminal is connected with the negative pole currect collecting circle.
Preferably, described housing has punching on the bottom, also has punching on the described cover plate, is equipped with explosion-proof valve in the punching of described housing bottom and the punching on the cover plate; Guarantee cell safety.
Preferably, described explosion-proof valve adopts laser welding in punching; Described positive terminal adopts laser welding to be connected with the anode collection circle; Described negative terminal adopts laser welding to be connected with the negative pole currect collecting circle; Laser welding will arrive minimum requirement with heat, and heat affected area metallographic excursion is little, and also minimum because of the distortion that heat conduction caused, and it is easy to automation and carries out high-speed welding, numerical digit or computer control.
Preferably, be provided with sealing ring between described cover plate and the enclosure interior; Prevent that electrolyte from spilling.
Preferably, described housing adopts the aluminium manufacturing; Aluminum enclosure is easier to processed, the die cost of effectively having saved slot rolling and having sealed.
Preferably, described negative terminal, negative pole currect collecting circle, anode collection circle, positive terminal, explosion-proof valve all adopt the aluminium manufacturing; Alleviate overall weight, reduced the welding difficulty between each accessory, the internal resistance of cell is reduced, further improved battery performance, because the price of aluminium is lower than copper and mickel, also effectively reduced production cost simultaneously.
Compared with prior art, advantage of the present invention is: the weight of entire product is lighter, and positive terminal and housing is integrally manufactured, reduced welding procedure, reduced the internal resistance of cell and production cost, the battery assembling is convenient at the two ends that positive terminal and negative terminal are separately positioned on housing, saves the space.
Description of drawings
Fig. 1 is the structural representation of a kind of serondary lithium battery of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structure of cover plate schematic diagram of a kind of serondary lithium battery of the present invention;
Embodiment
Consult Fig. 1, Fig. 2, Fig. 3 is the embodiment of a kind of serondary lithium battery of the present invention, a kind of serondary lithium battery, comprise negative terminal 1, negative pole currect collecting circle 2, volume core 3, anode collection circle 4, positive terminal 5, cover plate 6, housing 7, described housing 7 has placed cavity 8, be connected with anode collection circle 4 from the bottom to top in turn in the described placed cavity 8, volume core 3, negative pole currect collecting circle 2, described cover plate 6 is arranged in the placed cavity 8 on the negative pole currect collecting circle 2, described positive terminal 5 is arranged on the bottom of housing 7, described positive terminal 5 is integrally manufactured with housing 7, described positive terminal 5 is connected with anode collection circle 4, described negative terminal 1 is arranged on the cover plate 6 on housing 7 tops, described negative terminal 1 is connected with negative pole currect collecting circle 2, described housing has punching 9 on 7 bottoms, also have punching 9 on the described cover plate 6, be equipped with explosion-proof valve 10 in the punching 9 of described housing 7 bottoms and the punching 9 on the cover plate 6, described explosion-proof valve 10 adopts laser welding in punching 9, be provided with sealing ring 11 between described cover plate 6 and housing 7 inside, described positive terminal 5 adopts laser welding to be connected with anode collection circle 4, described negative terminal 1 adopts laser welding to be connected with negative pole currect collecting circle 2, described housing 7 adopts aluminium manufacturing, described negative terminal 1, negative pole currect collecting circle 2, anode collection circle 4, positive terminal 5, explosion-proof valve 10 all adopts the aluminium manufacturing.
The lug of the positive/negative plate of the volume heart 3 is full lug, make the bonding area of lug and afflux circle maximize, weld more firm, thereby reduce the internal resistance of battery, volume core 3 both ends of the surface of winding are on a plane, positive terminal 5 adopts laser welding to be connected with anode collection circle 4, described negative terminal 1 adopts laser welding to be connected with negative pole currect collecting circle 2, positive terminal 5 is following, negative terminal 1 is last, employing laser will roll up core 3 and two afflux circles are welded as a whole, volume core 3 after having welded carries out the slot rolling operation, and slot rolling finishes, and the male and fomale(M﹠F) of male and fomale(M﹠F) and negative pole currect collecting circle 2 that will have the negative pole aluminium matter block of sealing ring 11 then welds with laser connecting, the top edge that adopts machinery to seal housing 7 curves inwardly at last, fasten cover plate 6, finish sealing, seal the battery that finishes and flow into down the operation electrolyte of annotating, the liquid injection hole design is carried out plug-hole with steel ball at last on the negative pole block.
The above only is specific embodiments of the invention, but technical characterictic of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of being done or modify all is encompassed among the claim of the present invention.
Claims (8)
1. serondary lithium battery, comprise negative terminal (1), negative pole currect collecting circle (2), volume core (3), anode collection circle (4), positive terminal (5), cover plate (6), housing (7), it is characterized in that: described housing (7) has placed cavity (8), be connected with anode collection circle (4) in the described placed cavity (8) from the bottom to top in turn, volume core (3), negative pole currect collecting circle (2), described cover plate (6) is arranged in the placed cavity (8) on the negative pole currect collecting circle (2), described positive terminal (5) is arranged on the bottom of housing (7), described positive terminal (5) is integrally manufactured with housing (7), described positive terminal (5) is connected with anode collection circle (4), described negative terminal (1) is arranged on the cover plate (6) on housing (7) top, and described negative terminal (1) is connected with negative pole currect collecting circle (2).
2. a kind of serondary lithium battery as claimed in claim 1, it is characterized in that: described housing (7) has punching (9) on the bottom, also have punching (9) on the described cover plate (6), be equipped with explosion-proof valve (10) in the punching (9) of described housing (7) bottom and the punching (9) on the cover plate (6).
3. a kind of serondary lithium battery as claimed in claim 1 is characterized in that: described explosion-proof valve (10) adopts laser welding in punching (9).
4. a kind of serondary lithium battery as claimed in claim 1 is characterized in that: be provided with sealing ring (11) between described cover plate (6) and housing (7) inside.
5. a kind of serondary lithium battery as claimed in claim 1 is characterized in that: described positive terminal (5) adopts laser welding to be connected with anode collection circle (4).
6. a kind of serondary lithium battery as claimed in claim 1 is characterized in that: described negative terminal (1) adopts laser welding to be connected with negative pole currect collecting circle (2).
7. as each described a kind of serondary lithium battery in the claim 1 to 6, it is characterized in that: described housing (7) adopts the aluminium manufacturing.
8. a kind of serondary lithium battery as claimed in claim 7 is characterized in that: described negative terminal (1), negative pole currect collecting circle (2), anode collection circle (4), positive terminal (5), explosion-proof valve (10) all adopt the aluminium manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010279325XA CN101944575B (en) | 2010-09-08 | 2010-09-08 | Secondary lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010279325XA CN101944575B (en) | 2010-09-08 | 2010-09-08 | Secondary lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101944575A true CN101944575A (en) | 2011-01-12 |
| CN101944575B CN101944575B (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010279325XA Active CN101944575B (en) | 2010-09-08 | 2010-09-08 | Secondary lithium battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN101944575B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867936A (en) * | 2011-07-05 | 2013-01-09 | 珠海银通新能源有限公司 | High capacity battery and assembly method thereof |
| CN103413967A (en) * | 2013-07-26 | 2013-11-27 | 深圳市优特利电源有限公司 | Lithium ion secondary battery and manufacturing method thereof |
| CN103915584A (en) * | 2014-04-01 | 2014-07-09 | 谭轶鸿 | Lithium ion battery end cover, lithium ion battery and production method of lithium ion battery |
| CN106099205A (en) * | 2016-07-25 | 2016-11-09 | 长兴三通能源科技有限公司 | A kind of lithium battery |
| CN106099018A (en) * | 2016-07-25 | 2016-11-09 | 长兴三通能源科技有限公司 | Lithium battery |
| CN109904524A (en) * | 2019-01-25 | 2019-06-18 | 东莞市海商泰通讯科技有限公司 | A kind of processing technology of 1 to No. 7 solid lithium ion battery |
| CN112952242A (en) * | 2021-03-31 | 2021-06-11 | 东莞新能德科技有限公司 | Battery module assembly, battery module and electronic equipment |
| CN113437410A (en) * | 2020-08-04 | 2021-09-24 | 珠海冠宇电池股份有限公司 | Button cell and preparation method thereof |
| WO2022037521A1 (en) * | 2020-08-17 | 2022-02-24 | 华为技术有限公司 | Button battery, battery module and electronic device |
| WO2023206949A1 (en) * | 2022-04-29 | 2023-11-02 | 宁德时代新能源科技股份有限公司 | Cylindrical electrode assembly, battery cell, battery, electrical device, and manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201156555Y (en) * | 2008-02-20 | 2008-11-26 | 东莞市迈科新能源有限公司 | High-safety battery cover board of aluminum shell |
| CN201430189Y (en) * | 2009-05-31 | 2010-03-24 | 比亚迪股份有限公司 | Lithium ion battery |
| CN201766130U (en) * | 2010-09-08 | 2011-03-16 | 徐敖奎 | Secondary lithium battery |
-
2010
- 2010-09-08 CN CN201010279325XA patent/CN101944575B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201156555Y (en) * | 2008-02-20 | 2008-11-26 | 东莞市迈科新能源有限公司 | High-safety battery cover board of aluminum shell |
| CN201430189Y (en) * | 2009-05-31 | 2010-03-24 | 比亚迪股份有限公司 | Lithium ion battery |
| CN201766130U (en) * | 2010-09-08 | 2011-03-16 | 徐敖奎 | Secondary lithium battery |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867936A (en) * | 2011-07-05 | 2013-01-09 | 珠海银通新能源有限公司 | High capacity battery and assembly method thereof |
| CN103413967A (en) * | 2013-07-26 | 2013-11-27 | 深圳市优特利电源有限公司 | Lithium ion secondary battery and manufacturing method thereof |
| CN103915584A (en) * | 2014-04-01 | 2014-07-09 | 谭轶鸿 | Lithium ion battery end cover, lithium ion battery and production method of lithium ion battery |
| CN106099205A (en) * | 2016-07-25 | 2016-11-09 | 长兴三通能源科技有限公司 | A kind of lithium battery |
| CN106099018A (en) * | 2016-07-25 | 2016-11-09 | 长兴三通能源科技有限公司 | Lithium battery |
| CN109904524A (en) * | 2019-01-25 | 2019-06-18 | 东莞市海商泰通讯科技有限公司 | A kind of processing technology of 1 to No. 7 solid lithium ion battery |
| CN113437410A (en) * | 2020-08-04 | 2021-09-24 | 珠海冠宇电池股份有限公司 | Button cell and preparation method thereof |
| CN113437410B (en) * | 2020-08-04 | 2024-01-30 | 珠海冠宇电池股份有限公司 | Button cell and preparation method thereof |
| WO2022037521A1 (en) * | 2020-08-17 | 2022-02-24 | 华为技术有限公司 | Button battery, battery module and electronic device |
| CN112952242A (en) * | 2021-03-31 | 2021-06-11 | 东莞新能德科技有限公司 | Battery module assembly, battery module and electronic equipment |
| WO2023206949A1 (en) * | 2022-04-29 | 2023-11-02 | 宁德时代新能源科技股份有限公司 | Cylindrical electrode assembly, battery cell, battery, electrical device, and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101944575B (en) | 2013-01-16 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110112 Assignee: Zhejiang Xinghai Energy Technology Co.,Ltd. Assignor: Xu Aokui Contract record no.: 2013330000055 Denomination of invention: An electrolyte for secondary lithium battery and secondary lithium battery using this electrolyte Granted publication date: 20130116 License type: Exclusive License Record date: 20130403 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Zhejiang Xinghai Energy Technology Co.,Ltd. Assignor: Xu Aokui Contract record no.: 2013330000055 Date of cancellation: 20140311 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110112 Assignee: ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD. Assignor: Xu Aokui Contract record no.: 2014330000042 Denomination of invention: An electrolyte for secondary lithium battery and secondary lithium battery using this electrolyte Granted publication date: 20130116 License type: Exclusive License Record date: 20140317 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD. Assignor: Xu Aokui Contract record no.: 2014330000042 Date of cancellation: 20150804 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110112 Assignee: ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD. Assignor: Xu Aokui Contract record no.: 2015320000577 Denomination of invention: An electrolyte for secondary lithium battery and secondary lithium battery using this electrolyte Granted publication date: 20130116 License type: Exclusive License Record date: 20150821 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |