JP2016143452A - リチウムイオン二次電池 - Google Patents
リチウムイオン二次電池 Download PDFInfo
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- JP2016143452A JP2016143452A JP2015015983A JP2015015983A JP2016143452A JP 2016143452 A JP2016143452 A JP 2016143452A JP 2015015983 A JP2015015983 A JP 2015015983A JP 2015015983 A JP2015015983 A JP 2015015983A JP 2016143452 A JP2016143452 A JP 2016143452A
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- electrode
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 20
- 150000002500 ions Chemical class 0.000 claims abstract description 14
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 10
- 238000010292 electrical insulation Methods 0.000 abstract description 15
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000000243 solution Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 15
- 239000000758 substrate Substances 0.000 description 10
- 239000004743 Polypropylene Substances 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- -1 polyethylene Polymers 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 239000007774 positive electrode material Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000010220 ion permeability Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920006270 hydrocarbon resin Polymers 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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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- Secondary Cells (AREA)
- Cell Separators (AREA)
Abstract
【解決手段】正極106と負極107とをセパレーター108を介在させて対向するように配置し、電解液と共に外装材105内に密封したリチウムイオン二次電池において、正極106とセパレーター108との間に配置された正極用参照極109と、負極107とセパレーター108との間に配置された負極用参照極110と、正極用参照極109が正極106に対向する部分および負極用参照極110が負極107に対向する部分にそれぞれ配置された参照極電気絶縁部材210と、を有し、参照極電気絶縁部材210は、セパレーター108よりもイオン伝導抵抗が低いことを特徴とするリチウムイオン二次電池。
【選択図】図2
Description
下記の通り実施例となるリチウムイオン二次電池101を作成した。
実施例1において、参照極電気絶縁部材210として、乾いた状態において厚さ20μm、空孔率70%のポリプロピレン製多孔質フィルムを使用した。それ以外の構成は実施例1と同様である。
参照極電気絶縁部材210に、乾いた状態において厚さ25μm、空孔率50%のポリプロピレン製多孔質フィルムを使用した以外は実施例1と同様である。
各実施例および比較例のリチウムイオン二次電池101を用いて充電(1C)時における正極電位および負極電位を測定した。正極電位は、正極106と正極用参照極109の間の電圧を電圧計により測定した。負極電位は、負極107と負極用参照極110の間の電圧を電圧計により測定した。測定は電池を環境温度25℃にて行った。
102 正極タブ、
103 負極タブ、
104 正極用参照極タブ、
105 負極用参照極タブ、
106 正極、
107 負極、
108 セパレーター、
109 正極用参照極、
110 負極用参照極、
150 外装材、
200 参照極、
210 参照極電気絶縁部材、
211 参照極基材、
212 参照極部、
300 電池セル、
301 集電体、
306 正極活物質、
307 負極活物質。
Claims (5)
- 正極と負極とをセパレーターを介在させて対向するように配置し、電解液と共に外装材内に密封したリチウムイオン二次電池において、
前記正極と前記セパレーターとの間に配置された正極用参照極と、
前記負極と前記セパレーターとの間に配置された負極用参照極と、
少なくとも前記正極用参照極が前記正極に対向する部分および少なくとも前記負極用参照極が前記負極に対向する部分にそれぞれ配置された参照極電気絶縁部材と、を有し、
前記参照極電気絶縁部材は、前記セパレーターよりもイオン伝導抵抗が低いことを特徴とするリチウムイオン二次電池。 - 前記参照極電気絶縁部材は、前記セパレーターよりも薄いことを特徴とする請求項1に記載のリチウムイオン二次電池。
- 前記参照極電気絶縁部材は前記セパレーターよりも空孔率が高いことを特徴とする請求項1または2に記載のリチウムイオン二次電池。
- 前記正極用参照極および前記負極用参照極は、前記正極、前記セパレーター、前記負極が積層される方向で重ならないように配置されていることを特徴とする請求項1〜3のいずれか一つに記載のリチウムイオン二次電池。
- 前記正極用参照極が前記正極に対向する部分の重なりの長さ、および前記負極用参照極が前記負極に対向する部分の重なりの長さは、0mm以上1mm未満であることを特徴とする請求項1〜4のいずれか一つに記載のリチウムイオン二次電池。
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JP6507679B2 JP6507679B2 (ja) | 2019-05-08 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018141723A1 (en) | 2017-02-06 | 2018-08-09 | Lithium Energy and Power GmbH & Co. KG | Energy storage system and charge method |
WO2019160334A1 (ko) * | 2018-02-19 | 2019-08-22 | 주식회사 엘지화학 | 이차 전지 및 이를 포함하는 배터리 팩 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010073558A (ja) * | 2008-09-19 | 2010-04-02 | Nissan Motor Co Ltd | 電気化学セル、組電池、および車両 |
JP2010161001A (ja) * | 2009-01-09 | 2010-07-22 | Kri Inc | 電気化学セル |
US20120027926A1 (en) * | 2010-07-30 | 2012-02-02 | Honjo Metal Co., Ltd. | Reference electrode, its manufacturing method, and an electrochemical cell |
US20130009604A1 (en) * | 2011-07-06 | 2013-01-10 | Apple Inc. | Using reference electrodes to manage batteries for portable electronic devices |
JP2013118090A (ja) * | 2011-12-02 | 2013-06-13 | Nissan Motor Co Ltd | 電池状態監視装置及び電池状態の監視方法 |
JP2013168349A (ja) * | 2012-01-18 | 2013-08-29 | Sharp Corp | 二次電池及び二次電池モジュール |
JP2013191532A (ja) * | 2012-02-14 | 2013-09-26 | Nippon Soken Inc | リチウムイオン二次電池およびその製造方法 |
JP2014207174A (ja) * | 2013-04-15 | 2014-10-30 | 本田技研工業株式会社 | リチウムイオン電池の製造方法 |
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- 2015-01-29 JP JP2015015983A patent/JP6507679B2/ja active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010073558A (ja) * | 2008-09-19 | 2010-04-02 | Nissan Motor Co Ltd | 電気化学セル、組電池、および車両 |
JP2010161001A (ja) * | 2009-01-09 | 2010-07-22 | Kri Inc | 電気化学セル |
US20120027926A1 (en) * | 2010-07-30 | 2012-02-02 | Honjo Metal Co., Ltd. | Reference electrode, its manufacturing method, and an electrochemical cell |
JP2012033365A (ja) * | 2010-07-30 | 2012-02-16 | National Institute Of Advanced Industrial & Technology | 参照電極、その製造方法、および電気化学セル |
US20130009604A1 (en) * | 2011-07-06 | 2013-01-10 | Apple Inc. | Using reference electrodes to manage batteries for portable electronic devices |
JP2013118090A (ja) * | 2011-12-02 | 2013-06-13 | Nissan Motor Co Ltd | 電池状態監視装置及び電池状態の監視方法 |
JP2013168349A (ja) * | 2012-01-18 | 2013-08-29 | Sharp Corp | 二次電池及び二次電池モジュール |
JP2013191532A (ja) * | 2012-02-14 | 2013-09-26 | Nippon Soken Inc | リチウムイオン二次電池およびその製造方法 |
JP2014207174A (ja) * | 2013-04-15 | 2014-10-30 | 本田技研工業株式会社 | リチウムイオン電池の製造方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018141723A1 (en) | 2017-02-06 | 2018-08-09 | Lithium Energy and Power GmbH & Co. KG | Energy storage system and charge method |
WO2019160334A1 (ko) * | 2018-02-19 | 2019-08-22 | 주식회사 엘지화학 | 이차 전지 및 이를 포함하는 배터리 팩 |
US11545705B2 (en) | 2018-02-19 | 2023-01-03 | Lg Energy Solution, Ltd. | Secondary battery and battery pack including the same |
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