JP4693372B2 - 非水電解質二次電池 - Google Patents
非水電解質二次電池 Download PDFInfo
- Publication number
- JP4693372B2 JP4693372B2 JP2004209828A JP2004209828A JP4693372B2 JP 4693372 B2 JP4693372 B2 JP 4693372B2 JP 2004209828 A JP2004209828 A JP 2004209828A JP 2004209828 A JP2004209828 A JP 2004209828A JP 4693372 B2 JP4693372 B2 JP 4693372B2
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- JP
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- Prior art keywords
- positive electrode
- lithium
- secondary battery
- active material
- electrolyte secondary
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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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
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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
- 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
- H01M4/621—Binders
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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
- 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
- H01M4/621—Binders
- H01M4/622—Binders being polymers
- H01M4/623—Binders being polymers fluorinated polymers
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- 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
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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
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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)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Description
(正極の作製)
実施例においては、正極を以下のようにして作製した。
負極としては、所定の大きさにカットしたリチウム金属を用いた。
非水電解質としては、エチレンカーボネートとジエチルカーボネートとを体積比50:50の割合で混合した非水溶媒に、六フッ化リン酸リチウム(LiPF6 )を1.0mol/lの濃度になるように添加したものを用いた。
参照極としては、所定の大きさにカットしたリチウム金属を用いた。
図1は実施例において作製した試験セルの概略説明図である。図1に示すように、不活性雰囲気下において、上記の正極1にリードを取り付けるとともに、上記の負極2にリードを取り付けた。正極1と負極2との間にセパレータ4を挿入し、試験セル容器10内に正極1、負極2および参照極3を配置した。試験セル容器10内に上記の非水電解質5を注入し、実施例の試験セルを作製した。
比較例においては、結着剤としてポリフッ化ビニリデン(PVdF)を用いた点を除いて実施例と同じ試験セルを作製した。
実施例および比較例の試験セルを用いて以下の条件で充放電試験を行い、正極活物質の単位質量当たりの放電容量を測定した。なお、以下に示す条件においては、定格電流を1.0Cとする。ここで、定格電流とは、定格放電容量が1時間で完全に放電されるときの電流値をいい、定格放電容量とは、正極活物質の重量および正極合剤の面積から想定される仮想放電容量のことである。
2 負極
3 参照極
4 セパレータ
5 非水電解質
10 試験セル容器
Claims (4)
- 正極合剤と、負極と、非水電解質とを備え、
前記正極合剤は、オリビン構造を有するリチウム含有化合物を含む正極活物質と、導電剤と、結着剤とを含み、
前記オリビン構造を有するリチウム含有化合物はリン酸鉄リチウムであり、
前記結着剤は、フッ化ビニリデンとテトラフルオロエチレンとヘキサフルオロプロピレンとの共重合体を含むことを特徴とする非水電解質二次電池。 - 前記正極合剤に対する前記共重合体の割合は1重量%以上15重量%以下であることを特徴とする請求項1に記載の非水電解質二次電池。
- 前記オリビン構造を有するリチウム含有化合物の粒子径が10μm以下であることを特徴とする請求項1または2に記載の非水電解質二次電池。
- 前記正極合剤に対する前記導電剤の割合は10重量%以下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非水電解質二次電池。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004209828A JP4693372B2 (ja) | 2004-07-16 | 2004-07-16 | 非水電解質二次電池 |
US11/181,894 US20060014076A1 (en) | 2004-07-16 | 2005-07-15 | Non-aqueous electrolyte secondary battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004209828A JP4693372B2 (ja) | 2004-07-16 | 2004-07-16 | 非水電解質二次電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006032144A JP2006032144A (ja) | 2006-02-02 |
JP4693372B2 true JP4693372B2 (ja) | 2011-06-01 |
Family
ID=35599824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004209828A Expired - Fee Related JP4693372B2 (ja) | 2004-07-16 | 2004-07-16 | 非水電解質二次電池 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20060014076A1 (ja) |
JP (1) | JP4693372B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5196392B2 (ja) * | 2007-03-15 | 2013-05-15 | 住友電気工業株式会社 | 非水電解質二次電池用正極 |
KR101225239B1 (ko) * | 2009-06-30 | 2013-01-22 | 파나소닉 주식회사 | 비수 전해질 이차전지용 양극 및 그 제조방법 및 비수 전해질 이차전지 |
CN102598388B (zh) * | 2009-10-30 | 2016-01-20 | 第一工业制药株式会社 | 锂二次电池 |
JP5357276B2 (ja) * | 2010-01-28 | 2013-12-04 | 三菱電機株式会社 | 電力貯蔵デバイスセル、およびその製造方法と保管方法 |
JP5369050B2 (ja) | 2010-05-20 | 2013-12-18 | 住友電気工業株式会社 | 高耐食性を有する金属多孔体 |
WO2012008539A1 (ja) * | 2010-07-16 | 2012-01-19 | 株式会社日本触媒 | 二次電池用水系電極バインダー |
WO2012077550A1 (ja) | 2010-12-08 | 2012-06-14 | 住友電気工業株式会社 | 高耐食性を有する金属多孔体及びその製造方法 |
EP2644722B1 (en) | 2010-12-08 | 2017-02-01 | Sumitomo Electric Industries, Ltd. | Method for producing highly corrosion-resistant porous metal body |
KR101965016B1 (ko) | 2011-07-25 | 2019-04-02 | 에이일이삼 시스템즈, 엘엘씨 | 블렌딩된 캐소드 물질 |
JP6015649B2 (ja) * | 2012-01-11 | 2016-10-26 | 三菱レイヨン株式会社 | 二次電池電極用バインダ樹脂組成物、二次電池電極用スラリー、二次電池用電極、リチウムイオン二次電池 |
CN102778488B (zh) * | 2012-07-24 | 2014-04-09 | 北京理工大学 | 一种随机组合式准单颗粒电极 |
JP5945753B2 (ja) * | 2014-05-08 | 2016-07-05 | エス・イー・アイ株式会社 | リチウム二次電池 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07130357A (ja) * | 1993-11-02 | 1995-05-19 | Mitsubishi Cable Ind Ltd | リチウム電池用正極材及びその製造方法 |
JP2002110162A (ja) * | 2000-09-29 | 2002-04-12 | Sony Corp | 正極活物質及び非水電解質電池 |
JP2002117845A (ja) * | 2000-10-06 | 2002-04-19 | Toyota Central Res & Dev Lab Inc | リチウム二次電池正極活物質用リチウム鉄複合酸化物 |
JP2002151082A (ja) * | 2000-11-10 | 2002-05-24 | Kansai Research Institute | 鉄リン酸リチウム及びその製造方法並びにこれを用いた二次電池 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5910382A (en) * | 1996-04-23 | 1999-06-08 | Board Of Regents, University Of Texas Systems | Cathode materials for secondary (rechargeable) lithium batteries |
EP0964464B1 (en) * | 1996-12-16 | 2010-08-25 | Daikin Industries, Ltd. | Binder for rechargeable battery with nonaqueous electrolyte and battery electrode depolarizing mix prepared using the same |
JP3988374B2 (ja) * | 2000-10-06 | 2007-10-10 | ソニー株式会社 | 非水電解液二次電池 |
JP3997702B2 (ja) * | 2000-10-06 | 2007-10-24 | ソニー株式会社 | 非水電解質二次電池 |
US20020110735A1 (en) * | 2000-12-18 | 2002-08-15 | Farnham William B. | Additive for lithium-ion battery |
US7025907B2 (en) * | 2001-05-15 | 2006-04-11 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Carbon-containing lithium-iron composite phosphorus oxide for lithium secondary battery positive electrode active material and process for producing the same |
JP2003257480A (ja) * | 2002-02-27 | 2003-09-12 | Fuji Photo Film Co Ltd | 電解質組成物及び非水二次電池 |
CA2555521C (en) * | 2004-02-06 | 2014-08-05 | A123 Systems, Inc. | Lithium secondary cell with high charge and discharge rate capability |
US20060179643A1 (en) * | 2005-02-15 | 2006-08-17 | Herbert Naarmann | Rechargeable lithium polymer cell and process for the production of rechargeable lithium polymer batteries |
-
2004
- 2004-07-16 JP JP2004209828A patent/JP4693372B2/ja not_active Expired - Fee Related
-
2005
- 2005-07-15 US US11/181,894 patent/US20060014076A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07130357A (ja) * | 1993-11-02 | 1995-05-19 | Mitsubishi Cable Ind Ltd | リチウム電池用正極材及びその製造方法 |
JP2002110162A (ja) * | 2000-09-29 | 2002-04-12 | Sony Corp | 正極活物質及び非水電解質電池 |
JP2002117845A (ja) * | 2000-10-06 | 2002-04-19 | Toyota Central Res & Dev Lab Inc | リチウム二次電池正極活物質用リチウム鉄複合酸化物 |
JP2002151082A (ja) * | 2000-11-10 | 2002-05-24 | Kansai Research Institute | 鉄リン酸リチウム及びその製造方法並びにこれを用いた二次電池 |
Also Published As
Publication number | Publication date |
---|---|
US20060014076A1 (en) | 2006-01-19 |
JP2006032144A (ja) | 2006-02-02 |
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