CN100470916C - 锂离子二次电池 - Google Patents
锂离子二次电池 Download PDFInfo
- Publication number
- CN100470916C CN100470916C CNB2005101157063A CN200510115706A CN100470916C CN 100470916 C CN100470916 C CN 100470916C CN B2005101157063 A CNB2005101157063 A CN B2005101157063A CN 200510115706 A CN200510115706 A CN 200510115706A CN 100470916 C CN100470916 C CN 100470916C
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- Prior art keywords
- metal shell
- cylinder
- lithium rechargeable
- rechargeable battery
- pole
- 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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- 229910001416 lithium ion Inorganic materials 0.000 title abstract description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 44
- 239000003792 electrolyte Substances 0.000 claims abstract description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 33
- 229910052744 lithium Inorganic materials 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910001120 nichrome Inorganic materials 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 12
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 8
- 239000002033 PVDF binder Substances 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 4
- 239000006230 acetylene black Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000000191 radiation effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
- H01M10/38—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
- H01M50/522—Inorganic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/591—Covers
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Primary Cells (AREA)
Abstract
Description
C<sub>1C</sub>/C<sub>0.5C</sub>(%) | C<sub>3C</sub>/C<sub>0.5C</sub>(%) | C<sub>10C</sub>/C<sub>0.5C</sub>(%) | |
实施例1 | 99.6 | 91.1 | 87.2 |
实施例2 | 99.5 | 90.7 | 85.8 |
实施例3 | 99.8 | 91.4 | 86.2 |
比较例 | 99.2 | 77.3 | 62.5 |
冲击短路率 | 内阻突变率 | |
实施例1 | 0 | 0 |
实施例2 | 0 | 0 |
实施例3 | 0 | 0.2% |
比较例 | 1% | 2.5% |
Claims (10)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005101157063A CN100470916C (zh) | 2005-11-08 | 2005-11-08 | 锂离子二次电池 |
US12/084,650 US8088509B2 (en) | 2005-11-08 | 2006-04-11 | Lithium ion battery |
JP2008539210A JP5139312B2 (ja) | 2005-11-08 | 2006-04-11 | リチウムイオン電池 |
AT06722294T ATE513324T1 (de) | 2005-11-08 | 2006-04-11 | Lithium-ionenbatterie |
EP06722294A EP1952475B1 (en) | 2005-11-08 | 2006-04-11 | A lithium ion battery |
PCT/CN2006/000642 WO2007053990A1 (en) | 2005-11-08 | 2006-04-11 | A lithium ion battery |
KR1020087012534A KR101017209B1 (ko) | 2005-11-08 | 2006-04-11 | 리튬 이온 배터리 |
CA2628852A CA2628852C (en) | 2005-11-08 | 2006-04-11 | A lithium ion battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2005101157063A CN100470916C (zh) | 2005-11-08 | 2005-11-08 | 锂离子二次电池 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1964126A CN1964126A (zh) | 2007-05-16 |
CN100470916C true CN100470916C (zh) | 2009-03-18 |
Family
ID=38022959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005101157063A Active CN100470916C (zh) | 2005-11-08 | 2005-11-08 | 锂离子二次电池 |
Country Status (8)
Country | Link |
---|---|
US (1) | US8088509B2 (zh) |
EP (1) | EP1952475B1 (zh) |
JP (1) | JP5139312B2 (zh) |
KR (1) | KR101017209B1 (zh) |
CN (1) | CN100470916C (zh) |
AT (1) | ATE513324T1 (zh) |
CA (1) | CA2628852C (zh) |
WO (1) | WO2007053990A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102064336A (zh) * | 2010-12-13 | 2011-05-18 | 湖南科力远新能源股份有限公司 | 具有内部并联式结构的电池组及其制作方法 |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100470916C (zh) | 2005-11-08 | 2009-03-18 | 比亚迪股份有限公司 | 锂离子二次电池 |
JP2008135374A (ja) * | 2006-10-24 | 2008-06-12 | Matsushita Electric Ind Co Ltd | 密閉型二次電池 |
JP4906538B2 (ja) * | 2007-02-28 | 2012-03-28 | 日立ビークルエナジー株式会社 | リチウム二次電池 |
CN101420048A (zh) * | 2007-10-26 | 2009-04-29 | 比亚迪股份有限公司 | 一种锂离子二次电池的制备方法 |
EP3499609B1 (en) | 2009-05-20 | 2023-11-22 | Clarios Advanced Solutions LLC | Lithium ion battery module |
US8815437B2 (en) | 2009-09-10 | 2014-08-26 | Samsung Sdi Co., Ltd. | Rechargeable battery |
US8546007B2 (en) | 2009-10-29 | 2013-10-01 | Samsung Sdi Co., Ltd. | Rechargeable battery |
CN101807711A (zh) * | 2010-05-20 | 2010-08-18 | 天津市捷威动力工业有限公司 | 一种卷绕式动力电池及其制作工艺 |
WO2012103671A1 (zh) * | 2011-02-01 | 2012-08-09 | 汉能电动车有限公司 | 可扩充型拼组式电池装置 |
KR101265199B1 (ko) * | 2011-08-08 | 2013-05-23 | 삼성에스디아이 주식회사 | 이차 전지 |
US10790489B2 (en) | 2012-10-11 | 2020-09-29 | Cadenza Innovation, Inc. | Lithium ion battery |
US10637022B2 (en) | 2012-10-11 | 2020-04-28 | Cadenza Innovation, Inc. | Lithium ion battery |
WO2014059348A2 (en) | 2012-10-11 | 2014-04-17 | Lampe-Onnerud Maria Christina | Lithium ion battery |
CN103199202A (zh) * | 2013-03-19 | 2013-07-10 | 东莞市力嘉电池有限公司 | 一种锂离子动力电池 |
CN104377335B (zh) * | 2013-08-12 | 2017-07-07 | 深圳市沃特玛电池有限公司 | 大容量锂离子电池包 |
KR20170031087A (ko) | 2014-05-21 | 2017-03-20 | 터말세라믹스인크. | 수동형 단열소재 |
CN105140588A (zh) * | 2015-08-31 | 2015-12-09 | 哈尔滨市华振科技有限责任公司 | 电池电芯与下壳体分离装置及分离方法 |
EP3357108A1 (en) | 2015-10-02 | 2018-08-08 | Arconic Inc. | Energy storage device and related methods |
CN106784577A (zh) * | 2016-11-14 | 2017-05-31 | 浙江凯恩电池有限公司 | 连体的圆柱型电池 |
US20180175434A1 (en) * | 2016-12-20 | 2018-06-21 | Nanotek Instruments, Inc. | Process for Producing Flexible and Shape-Conformal Cable-Type Alkali Metal Batteries |
US10637067B2 (en) | 2016-12-28 | 2020-04-28 | Global Graphene Group, Inc. | Process for flexible and shape-conformal rope-shape alkali metal-sulfur batteries |
KR102249504B1 (ko) | 2017-03-21 | 2021-05-06 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
US11264598B2 (en) | 2018-03-22 | 2022-03-01 | Fmc Lithium Usa Corp. | Battery utilizing printable lithium |
WO2019183361A1 (en) | 2018-03-22 | 2019-09-26 | Fmc Lithium Usa Corp. | Printable lithium compositions for forming battery electrodes |
US11735764B2 (en) | 2018-03-22 | 2023-08-22 | Livent USA Corp. | Printable lithium compositions |
CN113196550A (zh) | 2018-07-30 | 2021-07-30 | 凯尊创新有限公司 | 用于可再充电电池的壳体 |
CN109786589A (zh) * | 2019-01-04 | 2019-05-21 | 上海德朗能动力电池有限公司 | 一种棱柱形锂离子电池及制备方法,以及其组成的电池模组 |
CN113614956B (zh) | 2019-03-20 | 2024-09-24 | 利文特美国公司 | 印刷锂箔和膜 |
CN111049216B (zh) * | 2019-12-13 | 2021-10-08 | 惠州市亿鹏能源科技有限公司 | 锂离子动力电池补电装置 |
KR20220144387A (ko) | 2020-02-19 | 2022-10-26 | 리벤트 유에스에이 코포레이션 | 고속 충전 사전 리튬화 규소 애노드 |
CN113851729A (zh) * | 2020-06-10 | 2021-12-28 | 合肥国轩高科动力能源有限公司 | 一种锂离子蓄电池及其制备方法 |
WO2023130258A1 (zh) * | 2022-01-05 | 2023-07-13 | 宁德时代新能源科技股份有限公司 | 电池、用电装置、制备电池的方法和装置 |
JP7649265B2 (ja) | 2022-01-18 | 2025-03-19 | 株式会社日立製作所 | 旅客案内システムおよび旅客案内システムの監視方法 |
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US4346151A (en) * | 1980-12-29 | 1982-08-24 | The Gates Rubber Company | Multicell sealed rechargeable battery |
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JP4729716B2 (ja) * | 2003-02-20 | 2011-07-20 | 三菱化学株式会社 | リチウム二次電池負極及びリチウム二次電池 |
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CN2702452Y (zh) | 2003-11-27 | 2005-05-25 | 王文宏 | 平板式聚合物锂离子动力电池 |
CN1588688A (zh) * | 2004-06-30 | 2005-03-02 | 北京格林动力电源技术有限公司 | 锂离子动力电池 |
CN100470916C (zh) | 2005-11-08 | 2009-03-18 | 比亚迪股份有限公司 | 锂离子二次电池 |
-
2005
- 2005-11-08 CN CNB2005101157063A patent/CN100470916C/zh active Active
-
2006
- 2006-04-11 AT AT06722294T patent/ATE513324T1/de not_active IP Right Cessation
- 2006-04-11 WO PCT/CN2006/000642 patent/WO2007053990A1/en active Application Filing
- 2006-04-11 US US12/084,650 patent/US8088509B2/en active Active
- 2006-04-11 JP JP2008539210A patent/JP5139312B2/ja active Active
- 2006-04-11 CA CA2628852A patent/CA2628852C/en active Active
- 2006-04-11 EP EP06722294A patent/EP1952475B1/en active Active
- 2006-04-11 KR KR1020087012534A patent/KR101017209B1/ko active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4346151A (en) * | 1980-12-29 | 1982-08-24 | The Gates Rubber Company | Multicell sealed rechargeable battery |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102064336A (zh) * | 2010-12-13 | 2011-05-18 | 湖南科力远新能源股份有限公司 | 具有内部并联式结构的电池组及其制作方法 |
Also Published As
Publication number | Publication date |
---|---|
KR101017209B1 (ko) | 2011-02-25 |
CA2628852A1 (en) | 2007-05-18 |
JP2009515304A (ja) | 2009-04-09 |
US20090142658A1 (en) | 2009-06-04 |
EP1952475A4 (en) | 2009-01-07 |
CA2628852C (en) | 2011-12-20 |
CN1964126A (zh) | 2007-05-16 |
EP1952475B1 (en) | 2011-06-15 |
US8088509B2 (en) | 2012-01-03 |
ATE513324T1 (de) | 2011-07-15 |
JP5139312B2 (ja) | 2013-02-06 |
WO2007053990A1 (en) | 2007-05-18 |
EP1952475A1 (en) | 2008-08-06 |
KR20080063525A (ko) | 2008-07-04 |
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