CN103138000B - A kind of lithium battery - Google Patents
A kind of lithium battery Download PDFInfo
- Publication number
- CN103138000B CN103138000B CN201310044242.6A CN201310044242A CN103138000B CN 103138000 B CN103138000 B CN 103138000B CN 201310044242 A CN201310044242 A CN 201310044242A CN 103138000 B CN103138000 B CN 103138000B
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- pole piece
- negative
- white
- stays
- positive pole
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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 invention discloses a kind of lithium battery, comprise battery core, described battery core comprises anode pole piece, cathode pole piece and barrier film, described anode pole piece is provided with the positive pole ear protruded upward, described cathode pole piece is provided with the negative lug of stretching out downwards, and described anode pole piece makes positive pole ear protrude upward relative to battery core after separating winding with cathode pole piece by barrier film, the relative battery core of negative lug is stretched out downwards.This kind of lithium battery is safe and reliable, is easy to production operation.
Description
Technical field
The present invention relates to a kind of lithium battery.
Background technology
At present, due to the limitation in battery case space, when battery operationally, internal temperature raises, and circulation is all difficult to control with security performance.
Summary of the invention
Problem to be solved by this invention is to provide a kind of lithium battery, safe and reliable, is easy to production operation.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of lithium battery, comprise battery core, described battery core comprises anode pole piece, cathode pole piece and barrier film, described anode pole piece is provided with the positive pole ear protruded upward, described cathode pole piece is provided with the negative lug of stretching out downwards, and described anode pole piece makes positive pole ear protrude upward relative to battery core after separating winding with cathode pole piece by barrier film, the relative battery core of negative lug is stretched out downwards.Positive and negative lug is distributed between battery core upper and lower side and both positive and negative polarity pole piece and separates with barrier film the short circuit preventing battery core.
Improve, described anode pole piece comprises plus plate current-collecting body, and described plus plate current-collecting body is coated with dressing, and the plus plate current-collecting body that described anode pole piece is provided with positive pole ear place stays white formation first to stay white position.Avoiding positive pole ear to take winding space, to cause battery core to enter shell tighter.
Improve, described anode pole piece has positive pole beginning volume end and positive pole ending end, the plus plate current-collecting body on described positive pole beginning volume end stays white formation second to stay white position, and the plus plate current-collecting body on described positive pole ending end stays white formation the 3rd to stay white position.Make rapid heat dissipation in the battery core course of work.
Improve, described first stays white position to begin to roll up end near positive pole is arranged.Make positive pole ear near the axial line of battery core away from shell, and then avoid the short circuit that positive pole ear and body contact cause.
Improve, described cathode pole piece comprises negative current collector, and described negative current collector is coated with dressing, and described cathode pole piece has negative pole to be begun to roll up end and negative pole ending end, and described negative lug is located at negative pole ending and holds.Make negative lug away from positive pole ear.
Improve, the negative current collector that described negative pole begins to roll up end stays white formation the 4th to stay white position, the negative current collector of described negative pole ending end stay white formation the 5th to stay white position, after described anode pole piece and cathode pole piece reel, described second stays white position correspondence to be coated on the outside that the 4th stays white position, and the described 5th stays white position correspondence to be coated on the outside that the 3rd stays white position.Make radiating effect in the battery core course of work better.
Improve, the described 5th stays white position to comprise inner side stays white area and outside to stay white area, and described outside is stayed white area to be greater than inner side and stayed white area.Battery core is avoided to enter shell tighter.
Beneficial effect:
After adopting technique scheme, a kind of lithium battery of this invention is safe and reliable, is easy to production operation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is the structural representation of battery core of the present invention;
Fig. 2 is the structural front view of anode pole piece of the present invention;
Fig. 3 is the structural front view of cathode pole piece of the present invention;
Fig. 4 is the positional structure schematic diagram of anode pole piece and cathode pole piece before electric core winding in the present invention.
Embodiment
As shown in Figures 1 to 4, a kind of lithium battery, comprise battery core 1, described battery core comprises anode pole piece 2, cathode pole piece 3 and barrier film 6, described anode pole piece is provided with the positive pole ear 4 protruded upward, described cathode pole piece is provided with the negative lug 5 of stretching out downwards, and described anode pole piece makes positive pole ear protrude upward relative to battery core after separating winding with cathode pole piece by barrier film, the relative battery core of negative lug is stretched out downwards.
Described anode pole piece comprises plus plate current-collecting body, described plus plate current-collecting body is coated with dressing, the plus plate current-collecting body that described anode pole piece is provided with positive pole ear place stays white formation first to stay white position 21, described positive pole ear stays white position by being welded to connect at first of plus plate current-collecting body, described anode pole piece has positive pole to begin to roll up end 22 and positive pole ending end 23, the plus plate current-collecting body that described positive pole begins on volume end stays white formation second to stay white position, plus plate current-collecting body on described positive pole ending end stays white formation the 3rd to stay white position, and described first stays white position to begin to roll up end near positive pole is arranged.Described plus plate current-collecting body adopts aluminium foil.
Described cathode pole piece comprises negative current collector, described negative current collector is coated with dressing, described cathode pole piece has negative pole to be begun to roll up end 31 and negative pole ending end 32, described negative lug is located at negative pole ending end, the negative current collector that described negative pole begins to roll up end stays white formation the 4th to stay white position, the negative current collector of described negative pole ending end stay white formation the 5th to stay white position, described negative lug stays white position by being welded to connect at the 5th of negative current collector, after described anode pole piece and cathode pole piece reel, described second stays white position correspondence to be coated on the outside that the 4th stays white position, described 5th stays white position correspondence to be coated on the outside that the 3rd stays white position, described 5th stays white position to comprise inner side stays white area 7 and outside to stay white area 8, described outside is stayed white area to be greater than inner side and is stayed white area.Described negative current collector adopts Copper Foil.
During winding, first negative pole is begun to roll up end winding one to enclose or two circle or some circles, the general circle or two that is preferably encloses, anode pole piece be placed in the inner side of cathode pole piece again and separate with barrier film, the cylinder be wound into by cathode pole piece is withheld positive pole and is begun to roll up end, notices that the 4th stays white position and second to stay white bit alignment simultaneously, then starts winding, after having reeled, the 5th stays white position correspondence to be coated on the outside that the 3rd stays white position, and described second stays white position correspondence to be coated on the outside that the 4th stays white position.
Except above preferred embodiment, the present invention also has other execution mode, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the scope that claims of the present invention define.
Claims (2)
1. a lithium battery, comprise battery core (1), described battery core comprises anode pole piece (2), cathode pole piece (3) and barrier film (6), it is characterized in that: described anode pole piece is provided with the positive pole ear (4) protruded upward, described cathode pole piece is provided with the negative lug (5) of stretching out downwards, described anode pole piece makes the relative battery core of positive pole ear protrude upward after separating winding with cathode pole piece by barrier film, the relative battery core of negative lug is stretched out downwards, described anode pole piece comprises plus plate current-collecting body, described plus plate current-collecting body is coated with dressing, the plus plate current-collecting body that described anode pole piece is provided with positive pole ear place stays white formation first to stay white position (21), described anode pole piece has positive pole to begin to roll up end (22) and positive pole ending end (23), the plus plate current-collecting body that described positive pole begins on volume end stays white formation second to stay white position, plus plate current-collecting body on described positive pole ending end stays white formation the 3rd to stay white position, described first stays white position to begin to roll up end near positive pole is arranged, described cathode pole piece comprises negative current collector, described negative current collector is coated with dressing, described cathode pole piece has negative pole to be begun to roll up end (31) and negative pole ending end (32), described negative lug is located at negative pole ending end, the negative current collector that described negative pole begins to roll up end stays white formation the 4th to stay white position, the negative current collector of described negative pole ending end stay white formation the 5th to stay white position, after described anode pole piece and cathode pole piece reel, described second stays white position correspondence to be coated on the outside that the 4th stays white position, described 5th stays white position correspondence to be coated on the outside that the 3rd stays white position.
2. a kind of lithium battery according to claim 1, is characterized in that: the described 5th stays white position to comprise inner side stays white area (7) and outside to stay white area (8), and described outside is stayed white area to be greater than inner side and stayed white area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044242.6A CN103138000B (en) | 2013-01-31 | 2013-01-31 | A kind of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044242.6A CN103138000B (en) | 2013-01-31 | 2013-01-31 | A kind of lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103138000A CN103138000A (en) | 2013-06-05 |
| CN103138000B true CN103138000B (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310044242.6A Active CN103138000B (en) | 2013-01-31 | 2013-01-31 | A kind of lithium battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN103138000B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640284A (en) * | 2009-06-05 | 2010-02-03 | 珠海汉格能源科技有限公司 | Cylinder type lithium ion battery cell and making method thereof |
| CN102315412A (en) * | 2011-10-24 | 2012-01-11 | 力神迈尔斯动力电池系统有限公司 | Lithium ion power battery pole group |
| CN203026603U (en) * | 2013-01-31 | 2013-06-26 | 浙江努奥罗新能源科技有限公司 | Lithium battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4140517B2 (en) * | 2003-12-12 | 2008-08-27 | 松下電器産業株式会社 | Lithium ion secondary battery and its construction method |
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2013
- 2013-01-31 CN CN201310044242.6A patent/CN103138000B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640284A (en) * | 2009-06-05 | 2010-02-03 | 珠海汉格能源科技有限公司 | Cylinder type lithium ion battery cell and making method thereof |
| CN102315412A (en) * | 2011-10-24 | 2012-01-11 | 力神迈尔斯动力电池系统有限公司 | Lithium ion power battery pole group |
| CN203026603U (en) * | 2013-01-31 | 2013-06-26 | 浙江努奥罗新能源科技有限公司 | Lithium battery |
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| Publication number | Publication date |
|---|---|
| CN103138000A (en) | 2013-06-05 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 313100 No. 399 Changxin Avenue, Taihu street, Huzhou, Zhejiang, Changxing County Patentee after: ZHEJIANG CHANGXING AEROSPACE POWER TECHNOLOGY CO.,LTD. Address before: 313100 No. three, No. 399, Changxing County National Economic Development Zone, Huzhou, Zhejiang Patentee before: ZHEJIANG NUOCISS NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230522 Address after: 313100 No.399, Changxing Avenue, Taihu street, Changxing County, Huzhou City, Zhejiang Province Patentee after: Shanghai Aerospace Power Technology Co.,Ltd. Changxing Branch Address before: 313100 No.399, Changxing Avenue, Taihu street, Changxing County, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG CHANGXING AEROSPACE POWER TECHNOLOGY CO.,LTD. |