JP5352075B2 - リチウム二次電池 - Google Patents
リチウム二次電池 Download PDFInfo
- Publication number
- JP5352075B2 JP5352075B2 JP2007287672A JP2007287672A JP5352075B2 JP 5352075 B2 JP5352075 B2 JP 5352075B2 JP 2007287672 A JP2007287672 A JP 2007287672A JP 2007287672 A JP2007287672 A JP 2007287672A JP 5352075 B2 JP5352075 B2 JP 5352075B2
- Authority
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- Prior art keywords
- separator
- secondary battery
- lithium secondary
- negative electrode
- positive electrode
- 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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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 98
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 239000008151 electrolyte solution Substances 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 8
- 239000002033 PVDF binder Substances 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 claims description 7
- 239000002931 mesocarbon microbead Substances 0.000 claims description 7
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000007774 positive electrode material Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 235000015110 jellies Nutrition 0.000 claims description 5
- 239000008274 jelly Substances 0.000 claims description 5
- 239000007773 negative electrode material Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 3
- 229910013870 LiPF 6 Inorganic materials 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910003002 lithium salt Inorganic materials 0.000 claims description 3
- 159000000002 lithium salts Chemical class 0.000 claims description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 claims description 2
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 1
- 230000008602 contraction Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 10
- 239000002002 slurry Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000013112 stability test Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000006183 anode active material Substances 0.000 description 3
- 239000006182 cathode active material Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 210000001787 dendrite Anatomy 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000002654 heat shrinkable material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229920006158 high molecular weight polymer Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
Images
Classifications
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/417—Polyolefins
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
-
- 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
-
- 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
Landscapes
- 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)
- Cell Separators (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Description
2 正極
4 負極
6 セパレータ
8 電極組立体
10 ケース
12 キャッププレート
14 ガスケット
16 電解液注入口
18 電極タップ
20 タップ
22 エンドテープ
24 下部テープ
26 電解液
Claims (5)
- 正極、負極、および前記正極と前記負極との間に介在されるセパレータを備える電極組立体と;
電解液と;
前記電極組立体および前記電解液を収容するケースと;
を備えて形成されるリチウム二次電池において、
前記セパレータは、
ポリエチレン材質の多孔性膜から形成され、
縦方向の最大熱収縮率および横方向の最大熱収縮率は、15〜30%であり、
前記縦方向の最大熱収縮率に対する前記横方向の最大熱収縮率の比は、0.8〜1.3であり、
前記最大熱収縮率は、前記セパレータの温度を常温から160℃まで10℃/minの昇温速度で昇温させながら加熱によって収縮された長さを、昇温前の前記セパレータの長さで割った値であることを特徴とする、リチウム二次電池。 - 前記正極は、アルミニウム集電体および正極活物質層を備え、
前記正極活物質層は、コバルト酸リチウム、カーボンブラックおよびポリビニリデンフルオライドを含んで形成されることを特徴とする、請求項1に記載のリチウム二次電池。 - 前記負極は、銅集電体および負極活物質層を備え、
前記負極活物質層は、メソカーボンマイクロビーズおよびポリビニリデンフルオライドを含んで形成されることを特徴とする、請求項1または2に記載のリチウム二次電池。 - 前記電解液は、エチレンカーボネート:プロピレンカーボネート:ジメチルカーボネートの割合が3:4:1質量比である溶媒に、リチウム塩のLiPF6を溶解することにより形成される1.15mol/Lの溶液であることを特徴とする、請求項1〜3のいずれかに記載のリチウム二次電池。
- 前記電極組立体は、前記正極、前記負極および前記セパレータを順次積層して巻回することにより、ゼリーロール状に形成されることを特徴とする、請求項1〜4のいずれかに記載のリチウム二次電池。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060120207A KR100898670B1 (ko) | 2006-11-30 | 2006-11-30 | 리튬 이차 전지용 세퍼레이터 및 이를 채용한 리튬 이차전지 |
KR10-2006-0120207 | 2006-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008140775A JP2008140775A (ja) | 2008-06-19 |
JP5352075B2 true JP5352075B2 (ja) | 2013-11-27 |
Family
ID=39185735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007287672A Active JP5352075B2 (ja) | 2006-11-30 | 2007-11-05 | リチウム二次電池 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080153004A1 (ja) |
EP (1) | EP1928043B1 (ja) |
JP (1) | JP5352075B2 (ja) |
KR (1) | KR100898670B1 (ja) |
CN (1) | CN101202335A (ja) |
DE (1) | DE602007006135D1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2015002094A1 (ja) * | 2013-07-05 | 2017-02-23 | Necエナジーデバイス株式会社 | 電池セル |
JP6020929B2 (ja) * | 2013-09-09 | 2016-11-02 | トヨタ自動車株式会社 | 非水電解液二次電池 |
CN109613049B (zh) * | 2018-10-20 | 2024-06-18 | 武汉惠强新能源材料科技有限公司 | 锂电池隔膜材料热收缩性能测试装置 |
KR102440243B1 (ko) * | 2019-02-21 | 2022-09-06 | 주식회사 엘지에너지솔루션 | 전극조립체 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4957833A (en) * | 1988-12-23 | 1990-09-18 | Bridgestone Corporation | Non-aqueous liquid electrolyte cell |
US6245272B1 (en) | 1999-02-19 | 2001-06-12 | Tonen Chemical Corporation | Polyolefin microporous film and method for preparing the same |
JP3471244B2 (ja) * | 1999-03-15 | 2003-12-02 | 株式会社東芝 | 非水電解液二次電池の製造方法 |
JP2000348706A (ja) * | 1999-03-31 | 2000-12-15 | Mitsubishi Chemicals Corp | 電池用セパレーター |
JP4659187B2 (ja) * | 1999-09-14 | 2011-03-30 | 日本バイリーン株式会社 | 電池用セパレータ |
JP4427853B2 (ja) * | 1999-12-20 | 2010-03-10 | 三菱化学株式会社 | 二次電池 |
US6686095B2 (en) * | 1999-12-28 | 2004-02-03 | Kabushiki Kaisha Toshiba | Gel electrolyte precursor and chemical battery |
DE10196273T1 (de) * | 2000-05-29 | 2003-05-08 | Mitsubishi Paper Mills Ltd | Separaator für elektrochemische Vorrichtung und Verfahren für dessen Herstellung und elektrochemische Vorrichtung |
JP4794099B2 (ja) * | 2001-09-28 | 2011-10-12 | 東レ東燃機能膜合同会社 | ポリオレフィン微多孔膜の製造方法 |
KR100477744B1 (ko) * | 2001-10-31 | 2005-03-18 | 삼성에스디아이 주식회사 | 유기 전해액 및 이를 채용한 리튬 2차전지 |
WO2003063269A1 (fr) * | 2002-01-24 | 2003-07-31 | Hitachi Maxell, Ltd. | Cellule secondaire non aqueuse et dispositif electronique la comprenant |
KR100560208B1 (ko) * | 2002-03-12 | 2006-03-10 | 에스케이씨 주식회사 | 상온에서 겔화가능한 겔 고분자 전해질용 조성물 |
JP2004095383A (ja) * | 2002-08-30 | 2004-03-25 | Toshiba Corp | 非水電解質二次電池 |
JP4381054B2 (ja) * | 2002-11-13 | 2009-12-09 | 日東電工株式会社 | 電池用セパレータのための部分架橋接着剤担持多孔質フィルムとその利用 |
JP4612321B2 (ja) * | 2003-04-04 | 2011-01-12 | 株式会社東芝 | 非水電解質二次電池 |
WO2004108408A1 (ja) * | 2003-06-04 | 2004-12-16 | Toray Industries, Inc. | 積層フィルムおよび二軸配向ポリエステルフィルム |
JP4662533B2 (ja) | 2003-08-26 | 2011-03-30 | 日東電工株式会社 | 電池用セパレータのための反応性ポリマー担持多孔質フィルムとそれを用いる電池の製造方法 |
JP4705334B2 (ja) * | 2004-03-19 | 2011-06-22 | 株式会社巴川製紙所 | 電子部品用セパレータ及びその製造方法 |
JP2005343958A (ja) * | 2004-06-01 | 2005-12-15 | Tonen Chem Corp | ポリエチレン微多孔膜の製造方法並びにその微多孔膜及び用途 |
KR100635736B1 (ko) * | 2005-03-08 | 2006-10-17 | 삼성에스디아이 주식회사 | 음극 활물질 및 이를 포함하는 리튬 이차 전지 |
-
2006
- 2006-11-30 KR KR1020060120207A patent/KR100898670B1/ko active IP Right Grant
-
2007
- 2007-11-05 JP JP2007287672A patent/JP5352075B2/ja active Active
- 2007-11-28 DE DE602007006135T patent/DE602007006135D1/de active Active
- 2007-11-28 EP EP07121766A patent/EP1928043B1/en active Active
- 2007-11-29 US US11/987,383 patent/US20080153004A1/en not_active Abandoned
- 2007-11-30 CN CNA200710195854XA patent/CN101202335A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
DE602007006135D1 (de) | 2010-06-10 |
KR20080049545A (ko) | 2008-06-04 |
EP1928043B1 (en) | 2010-04-28 |
EP1928043A1 (en) | 2008-06-04 |
KR100898670B1 (ko) | 2009-05-22 |
JP2008140775A (ja) | 2008-06-19 |
CN101202335A (zh) | 2008-06-18 |
US20080153004A1 (en) | 2008-06-26 |
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