JP2016062875A - 蓄電装置 - Google Patents
蓄電装置 Download PDFInfo
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- JP2016062875A JP2016062875A JP2014192592A JP2014192592A JP2016062875A JP 2016062875 A JP2016062875 A JP 2016062875A JP 2014192592 A JP2014192592 A JP 2014192592A JP 2014192592 A JP2014192592 A JP 2014192592A JP 2016062875 A JP2016062875 A JP 2016062875A
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- 238000003860 storage Methods 0.000 title claims description 21
- 239000011149 active material Substances 0.000 claims abstract description 48
- 239000011888 foil Substances 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 26
- 239000007774 positive electrode material Substances 0.000 abstract description 27
- 239000007773 negative electrode material Substances 0.000 abstract description 24
- 239000011248 coating agent Substances 0.000 abstract description 14
- 238000000576 coating method Methods 0.000 abstract description 14
- 238000010030 laminating Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 description 8
- 238000007689 inspection Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000283014 Dama Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- JNSGIVNNHKGGRU-JYRVWZFOSA-N diethoxyphosphinothioyl (2z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetate Chemical compound CCOP(=S)(OCC)OC(=O)C(=N/OC)\C1=CSC(N)=N1 JNSGIVNNHKGGRU-JYRVWZFOSA-N 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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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
- H01M10/05—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/52—Separators
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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
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- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0463—Cells or batteries with horizontal or inclined electrodes
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0468—Compression means for stacks of electrodes and separators
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/025—Electrodes composed of, or comprising, active material with shapes other than plane or cylindrical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
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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
- 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
- Y02E60/13—Energy storage using capacitors
-
- 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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Cell Separators (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
上記課題を解決する蓄電装置は、異なる極性の電極をセパレータで絶縁した状態で積層した電極組立体を有し、前記異なる極性の電極が、それぞれ金属箔に活物質を塗工した活物質層を有する蓄電装置であって、前記セパレータは、該セパレータの伸び率がその他の方向より高くなった方向を有しており、前記セパレータにおける前記伸び率の高い方向が、少なくとも一方の前記電極における活物質の塗工方向と交差している。
これによれば、凸部の長手方向に交差する方向のうち、交差角度が直角に近い方向ほど、セパレータは大きく引っ張られることになる。よって、伸び率の高い方向を、活物質の塗工方向と直交させることで、凸部によってセパレータが引っ張られても、セパレータに破損が生じることをより適切に抑制することができる。
図1及び図2に示すように、蓄電装置としての二次電池10は、ケース11内に電極組立体12を備える。また、ケース11には、電極組立体12とともに電解液も収容されている。ケース11は、有底筒状のケース本体13と、ケース本体13に電極組立体12を挿入する開口部13aを閉塞する平板状の蓋体14とから構成されている。ケース本体13と蓋体14とは、何れも金属製(例えば、ステンレス製やアルミニウム製)である。また、この実施形態では、ケース本体13が有底四角筒状であり、蓋体14が長方形平板状であることから、二次電池10は外観が角型をなす角型電池である。また、この実施形態の二次電池10は、リチウムイオン電池である。
図3に示すように、二次電池10では、電極21,25の金属箔22,26に活物質合剤を塗工して活物質層23,27を形成する際に、活物質合剤の塗工むらや活物質の凝集体であるダマにより、活物質層23,27の表面に凸部40が生じるおそれがある。
(1)セパレータ29における伸び率の高いMD方向が、正極電極21のCD方向及び負極電極25のCD方向と交差している。このため、各電極のCD方向に沿って凸部40が形成されても、その凸部40の長手方向に交差する方向にセパレータ29のMD方向が延びることとなる。その結果として、凸部40がセパレータ29に食い込み、凸部40の長手方向に交差する方向へ、セパレータ29が大きく引っ張られても、セパレータ29は柔軟に延伸し、セパレータ29に亀裂等の破損が生じることを抑制することができる。
○ 正極電極21のCD方向、又は負極電極25のCD方向と、セパレータ29のMD方向とを交差させてもよい。なお、正極活物質層23の方が負極活物質層27よりも硬い場合には、正極電極21のCD方向とセパレータ29のMD方向とを交差させることが望ましい。また、負極活物質層27の方が正極活物質層23よりも硬い場合には、負極電極25のCD方向とセパレータ29のMD方向とを交差させることが望ましい。
○ セパレータ29は、正極電極21及び負極電極25のいずれか一方を内部に収容する電極収納セパレータであってもよい。この場合、電極収納セパレータのMD方向が、収納された電極のCD方向と交差する。
○ 負極電極25の片面のみが負極活物質層27を有していてもよい。
○ 二次電池10は、リチウムイオン二次電池であったが、これに限らず、他の二次電池であってもよい。要するに、正極活物質層と負極活物質層との間をイオンが移動するとともに電荷の授受を行うものであればよい。
○ 電極組立体12として、帯状の正極電極と帯状の負極電極とが捲回されてなる捲回体を採用することも可能である。この形態では、例えば、正極電極21のCD方向及び負極電極25のCD方向の少なくとも一方が電極21,25及びセパレータ29の捲回方向に沿うように、電極21,25を捲回する。セパレータ29は、伸び率の高い方向が電極21,25の捲回方向と交差するように配置する。こうした捲回体の電極組立体12を有する二次電池10によっても、上記実施形態と同様の効果を得ることができる。
Claims (4)
- 異なる極性の電極をセパレータで絶縁した状態で積層した電極組立体を有し、前記異なる極性の電極が、それぞれ金属箔に活物質を塗工した活物質層を有する蓄電装置であって、
前記セパレータは、該セパレータの伸び率がその他の方向より高くなった方向を有しており、
前記セパレータにおける前記伸び率の高い方向が、少なくとも一方の前記電極における活物質の塗工方向と交差していることを特徴とする蓄電装置。 - 前記異なる極性の活物質層では、一方の活物質層が他方の活物質層よりも硬く、
前記セパレータにおける前記伸び率の高い方向が、硬い方の活物質層を有する電極における活物質の塗工方向と交差している請求項1に記載の蓄電装置。 - 前記セパレータにおける前記伸び率の高い方向が、前記活物質の塗工方向と直交している請求項1又は請求項2に記載の蓄電装置。
- 前記蓄電装置は、二次電池である請求項1〜請求項3のうち何れか一項に記載の蓄電装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014192592A JP6135628B2 (ja) | 2014-09-22 | 2014-09-22 | 蓄電装置 |
US15/512,206 US20170288259A1 (en) | 2014-09-22 | 2015-09-17 | Electricity storage device |
PCT/JP2015/076558 WO2016047566A1 (ja) | 2014-09-22 | 2015-09-17 | 蓄電装置 |
DE112015004300.4T DE112015004300T5 (de) | 2014-09-22 | 2015-09-17 | Stromspeichervorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014192592A JP6135628B2 (ja) | 2014-09-22 | 2014-09-22 | 蓄電装置 |
Publications (2)
Publication Number | Publication Date |
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JP2016062875A true JP2016062875A (ja) | 2016-04-25 |
JP6135628B2 JP6135628B2 (ja) | 2017-05-31 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2014192592A Active JP6135628B2 (ja) | 2014-09-22 | 2014-09-22 | 蓄電装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170288259A1 (ja) |
JP (1) | JP6135628B2 (ja) |
DE (1) | DE112015004300T5 (ja) |
WO (1) | WO2016047566A1 (ja) |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1140184A (ja) * | 1997-07-17 | 1999-02-12 | Japan Storage Battery Co Ltd | 二次電池用電極体及び二次電池 |
JP2004031097A (ja) * | 2002-06-25 | 2004-01-29 | Nissan Motor Co Ltd | 電池構造体 |
JP2007329050A (ja) * | 2006-06-08 | 2007-12-20 | Mitsubishi Cable Ind Ltd | シート状電池及びその製造方法 |
JP2010514105A (ja) * | 2006-12-19 | 2010-04-30 | ビーワイディー カンパニー リミテッド | 高安全性の積層型リチウムイオン電池 |
JP2011054555A (ja) * | 2009-09-02 | 2011-03-17 | Samsung Sdi Co Ltd | 電極群及びこれを適用した2次電池 |
JP2011134479A (ja) * | 2009-12-22 | 2011-07-07 | Mitsubishi Heavy Ind Ltd | 電極製造システム |
JP2013080617A (ja) * | 2011-10-04 | 2013-05-02 | Nissan Motor Co Ltd | 電気デバイス |
JP2013109946A (ja) * | 2011-11-21 | 2013-06-06 | Hitachi Ltd | 積層型電池 |
JP2013196894A (ja) * | 2012-03-19 | 2013-09-30 | Toyota Industries Corp | 蓄電装置、車両、電極体の製造方法 |
JP2013251206A (ja) * | 2012-06-01 | 2013-12-12 | Toyota Industries Corp | 蓄電装置 |
JP2014102897A (ja) * | 2012-11-16 | 2014-06-05 | Toyota Industries Corp | 蓄電装置及び蓄電装置の製造方法 |
WO2014136714A1 (ja) * | 2013-03-07 | 2014-09-12 | Necエナジーデバイス株式会社 | 非水電解液二次電池 |
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2014
- 2014-09-22 JP JP2014192592A patent/JP6135628B2/ja active Active
-
2015
- 2015-09-17 US US15/512,206 patent/US20170288259A1/en not_active Abandoned
- 2015-09-17 WO PCT/JP2015/076558 patent/WO2016047566A1/ja active Application Filing
- 2015-09-17 DE DE112015004300.4T patent/DE112015004300T5/de not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1140184A (ja) * | 1997-07-17 | 1999-02-12 | Japan Storage Battery Co Ltd | 二次電池用電極体及び二次電池 |
JP2004031097A (ja) * | 2002-06-25 | 2004-01-29 | Nissan Motor Co Ltd | 電池構造体 |
JP2007329050A (ja) * | 2006-06-08 | 2007-12-20 | Mitsubishi Cable Ind Ltd | シート状電池及びその製造方法 |
JP2010514105A (ja) * | 2006-12-19 | 2010-04-30 | ビーワイディー カンパニー リミテッド | 高安全性の積層型リチウムイオン電池 |
JP2011054555A (ja) * | 2009-09-02 | 2011-03-17 | Samsung Sdi Co Ltd | 電極群及びこれを適用した2次電池 |
JP2011134479A (ja) * | 2009-12-22 | 2011-07-07 | Mitsubishi Heavy Ind Ltd | 電極製造システム |
JP2013080617A (ja) * | 2011-10-04 | 2013-05-02 | Nissan Motor Co Ltd | 電気デバイス |
JP2013109946A (ja) * | 2011-11-21 | 2013-06-06 | Hitachi Ltd | 積層型電池 |
JP2013196894A (ja) * | 2012-03-19 | 2013-09-30 | Toyota Industries Corp | 蓄電装置、車両、電極体の製造方法 |
JP2013251206A (ja) * | 2012-06-01 | 2013-12-12 | Toyota Industries Corp | 蓄電装置 |
JP2014102897A (ja) * | 2012-11-16 | 2014-06-05 | Toyota Industries Corp | 蓄電装置及び蓄電装置の製造方法 |
WO2014136714A1 (ja) * | 2013-03-07 | 2014-09-12 | Necエナジーデバイス株式会社 | 非水電解液二次電池 |
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