CN200947452Y - Polymer lithium ion combined cell - Google Patents
Polymer lithium ion combined cell Download PDFInfo
- Publication number
- CN200947452Y CN200947452Y CNU2006200442031U CN200620044203U CN200947452Y CN 200947452 Y CN200947452 Y CN 200947452Y CN U2006200442031 U CNU2006200442031 U CN U2006200442031U CN 200620044203 U CN200620044203 U CN 200620044203U CN 200947452 Y CN200947452 Y CN 200947452Y
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- CN
- China
- Prior art keywords
- battery
- core body
- battery core
- polymer
- series
- 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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- 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
Abstract
The utility model relates to a polymer lithium-ion combination battery, which comprises a battery group formed by a plurality of battery cores which are connected in series and parallel. The battery cores are connected through a copper sheet soldered on a pole ear, a double surface glue is arranged between the contact surfaces of the battery cores, the bottom of the battery group is provided with a bracket. The utility model solves the problems of bigger machining difficulty in series and parallel connection process of the battery cores, and effectively reduces the combined battery internal resistance, and also solves the cooling problems of the battery cores in high current discharge, improves the combined battery using security, and also effectively prolongs the service life of the combined battery, and the cycle life is raised more than 40 percent.
Description
Technical field
The utility model relates to a kind of polymer Li-ion assembled battery.
Background technology
At present, in the suitability for industrialized production of polymer Li-ion assembled battery, the packaging technology of battery core body mainly contains two kinds both at home and abroad: series connection is with in parallel.The tandem compound battery provides high voltage.Compound mode in parallel provides big capacity.
The battery core body because the positive pole ear material is an aluminium, adds and can't carry out manual soldering to aluminium pole ears man-hour in the connection in series-parallel process.Originally can only use ultrasonic wave to carry out welding of aluminum nickel composite band earlier, aluminium nickel composite tape had been connected together.This processing mode has increased the internal resistance of battery pack, has reduced the efficiency for charge-discharge of battery pack.In addition, in the connection in series-parallel anabolic process, along with increasing of battery core body quantity, in the process of heavy-current discharge, because battery core body heating, battery pack is because heat accumulative total, causes battery core body bulging etc. bad.Therefore, be subjected to a lot of limitations when carrying out the design of assembled battery, solving these design constraints becomes one of emphasis of research.
Summary of the invention
Technical problem to be solved in the utility model is: at problems of the prior art, propose a kind ofly to reduce the internal resistance of battery pack and make battery core body good heat radiating, the simple polymer Li-ion assembled battery of technology.
The utility model is achieved in that
A kind of polymer Li-ion assembled battery by the battery pack that the connection in series-parallel of a plurality of battery core body forms, connects by the copper sheet that is welded on the lug between the described battery core body, is provided with double faced adhesive tape between the contact-making surface of battery core body; The bottom of described battery pack is provided with carriage.
Described copper sheet is the L shape.
The thickness of described double faced adhesive tape is 0.5～1mm.
Described carriage is " U " type sheet metal.
The beneficial effects of the utility model:
Because copper sheet is adopted in the connection between the battery core body, effectively reduces the assembled battery internal resistance, reduce by 30% than original assembling mode internal resistance; And the double faced adhesive tape between the battery core body has good heat radiation, and each position maximum temperature of battery pack has reduced the temperature rise of heavy-current discharge less than 50 ℃ under 1 minute the situation of 10C multiplying power discharging; Under the charge and discharge mode of 1C charging 10C discharge, cycle life can reach for 350 weeks, had improved the useful life of circulation ratio discharge.
Description of drawings
The structural representation of Fig. 1 single battery core body;
The schematic diagram of Fig. 2 the utility model polymer Li-ion assembled battery;
Embodiment
Referring to accompanying drawing 2, in polymer Li-ion assembled battery of the present utility model, copper sheet 1 L shaped on the lug by each battery core body links into an integrated entity a plurality of battery core bodys, be provided with the double faced adhesive tape 2 of 0.5～1mm between the contact-making surface of battery core body, the bottom of battery core body group is provided with " U " type sheet metal 3.Concrete manufacture method is as follows:
1) stamping-out is good " L " type copper sheet is welded on the aluminium pole ears of battery core body positive pole, referring to accompanying drawing 1;
2) per three battery core bodys are connected in parallel earlier;
3) in process in parallel, use the sponge double faced adhesive tape of 0.5～1mm thickness that all battery core bodys are fixed;
4) the battery core body group after using energy storage spot welding with parallel connection is cascaded;
5) connection in series-parallel is good battery core body bottom adopts " U " type sheet metal to carry out the skeleton support, and uses insulating material that assembled battery is carried out integral insulation and handle, and makes the polymer Li-ion assembled battery at last.
Claims (4)
1, a kind of polymer Li-ion assembled battery, the battery pack by the connection in series-parallel of a plurality of battery core body forms is characterized in that: connect by the copper sheet that is welded on the lug between the described battery core body, be provided with double faced adhesive tape between the contact-making surface of battery core body; The bottom of described battery pack is provided with carriage.
2, polymer Li-ion assembled battery according to claim 1 is characterized in that: described copper sheet is the L shape.
3, polymer Li-ion assembled battery according to claim 1 is characterized in that: the thickness of described double faced adhesive tape is 0.5～1mm.
4, cylindrical polymeric lithium ion battery according to claim 1, it is characterized in that: described carriage is " U " type sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200442031U CN200947452Y (en) | 2006-07-25 | 2006-07-25 | Polymer lithium ion combined cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200442031U CN200947452Y (en) | 2006-07-25 | 2006-07-25 | Polymer lithium ion combined cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200947452Y true CN200947452Y (en) | 2007-09-12 |
Family
ID=38734517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200442031U Expired - Lifetime CN200947452Y (en) | 2006-07-25 | 2006-07-25 | Polymer lithium ion combined cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200947452Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847701B (en) * | 2009-03-27 | 2012-11-21 | 比亚迪股份有限公司 | Battery connecting strip and battery pack |
| CN104466254A (en) * | 2014-10-27 | 2015-03-25 | 深圳市比克电池有限公司 | Lithium ion battery, lithium ion battery pack and lithium ion battery module |
| CN105633477A (en) * | 2016-03-01 | 2016-06-01 | 夏卫平 | Production technology for cylindrical lithium-ion battery PACK |
| CN108269960A (en) * | 2017-01-03 | 2018-07-10 | 神华集团有限责任公司 | A kind of battery cell and its manufacturing method and battery pack |
-
2006
- 2006-07-25 CN CNU2006200442031U patent/CN200947452Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847701B (en) * | 2009-03-27 | 2012-11-21 | 比亚迪股份有限公司 | Battery connecting strip and battery pack |
| CN104466254A (en) * | 2014-10-27 | 2015-03-25 | 深圳市比克电池有限公司 | Lithium ion battery, lithium ion battery pack and lithium ion battery module |
| CN105633477A (en) * | 2016-03-01 | 2016-06-01 | 夏卫平 | Production technology for cylindrical lithium-ion battery PACK |
| CN108269960A (en) * | 2017-01-03 | 2018-07-10 | 神华集团有限责任公司 | A kind of battery cell and its manufacturing method and battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090313 Address after: No. 459, Wensanlu Road, Hangzhou, Zhejiang Province, zip code: 310013 Co-patentee after: Zhejiang Nandu Battery Co., Ltd. Patentee after: Power power Limited by Share Ltd of Nandu, Zhejiang Address before: 1510 Jinqiao Road, Jinqiao Export Processing Zone, Shanghai, China: 201206 Patentee before: Narada Licom Power Technology (Shanghai) Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PROV NANDOU POWER MOTOR CO., LTD. Free format text: FORMER OWNER: SHANGHAI NANDU ENERGY SCIENCE CO., LTD. Effective date: 20090313 |
|
| CU03 | Publication of corrected utility model |
Correction item: Patentee Correct: Zhejiang Nandu power supply Limited by Share Ltd Hangzhou Nandu Battery Co., Ltd. False: Zhejiang Nandu power supply Limited by Share Ltd Zhejiang Nandu Battery Co., Ltd. Number: 15 Page: 873 Volume: 25 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: ZHEJIANG PROV NANDOU POWER MOTOR CO., LTD. ZHEJIANG PROV NANDOU BATTERY CO., LTD. - TO: ZHEJIANG PROV NANDOU POWER MOTOR CO., LTD. HANGZHOU NANDOU BATTERY CO., LTD. - |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070912 |
|
| EXPY | Termination of patent right or utility model |