JP5467086B2 - 複合陽極材料 - Google Patents
複合陽極材料 Download PDFInfo
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- JP5467086B2 JP5467086B2 JP2011201852A JP2011201852A JP5467086B2 JP 5467086 B2 JP5467086 B2 JP 5467086B2 JP 2011201852 A JP2011201852 A JP 2011201852A JP 2011201852 A JP2011201852 A JP 2011201852A JP 5467086 B2 JP5467086 B2 JP 5467086B2
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- Prior art keywords
- nickel
- particles
- anode material
- nickel hydroxide
- composite anode
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
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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
- H01M4/624—Electric conductive fillers
- H01M4/626—Metals
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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
- H01M4/04—Processes of manufacture in general
-
- 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
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/32—Nickel oxide or hydroxide 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
- H01M4/36—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
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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
- H01M4/624—Electric conductive fillers
-
- 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
-
- 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
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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)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
水素の電気化学的吸収およびヒドロキシルイオンの電気化学的放電によって充電される。該陰極反応は可逆的である。充電に際して、貯蔵された水素は放出されて水分子が形成され、電子を放出する。Ni−MH電池の水酸化ニッケル陽極でおこる反応は式(2):
さらに、電流密度は比表面積の減少に従って増加するので、大量の高酸化物γ−NiOOHが生ずる可能性があり、これは段階的放電特性および/または膨潤のような致命的な現象を引き起こしかねない。ニッケル電極におけるγ−NiOOHの生成による膨潤は、高密度β−NiOOHから低密度γ−NiOOHへの密度の大きな変化によって引き起こされる。本発明者らは、γ−NiOOHの生産が、固溶体中の少量のカドミウムの水酸化ニッケルへの添加によって効果的に防止できることをすでに見出した。しかしながら、環境汚染の観点から、カドミウム以外の添加材を利用することによって実質的に同一のまたはより優れた効果を達成するのが望まれる。
1.改良された活性化のスピード、毒に対する抵抗性および、増大した利用性を介するわずかな容量の改良。現時点では、最も商業的なニッケル金属水素化物電池は、5重量パーセントまでのコバルトおよび/またはコバルト−含有化合物の外部添加を介してこれらの効果を達成する。コバルトがこれらのレベルで効果的である主な理由は、それが水酸化ニッケル材料とは独立して広範な外部導電性ネットワークを生じるからであると一般には考えられている。しばしば、粉末化炭素、粉末化コバルト金属および粉末化ニッケル金属もまた添加されて別の導電性ネットワークを生じ、それにより、利用性を改良する。もちろん、かかる添加材の量を増加させる主な欠点は、水酸化ニッケル電極活物質の量がそれに対応して減少し、それにより、容量を減少させることである。さらに、Coは高価であるので、最小量のCoの添加でさえコストを上げる。
金属イオン溶液、硝酸カルシウム溶液、NaOHの苛性アルカリ溶液、および水酸化アンモニウム溶液を反応容器中で混合することによって、複合水酸化ニッケル材料を調製した。
試料 mAh/g
市販品 230
A(埋め込まれたニッケルを含まない) 276
B(5%の埋め込まれたニッケルを含む) 292
Claims (16)
- 複合陽極材料であって、
微結晶を有する活性陽極材料の粒子と、
前記活性陽極材料の粒子の内部に少なくとも部分的に埋め込まれた核形成粒子であって、前記微結晶が前記核形成粒子上に沈積するときに、前記微結晶が細長い平均微結晶形状を有するように結晶配向を制御する核形成粒子と
を含む複合陽極材料。 - 前記活性陽極材料の伝導率が、前記微結晶が前記核形成粒子上にランダムに沈積した同じ活性陽極材料の伝導率よりも大きい、請求項1に記載の複合陽極材料。
- 前記伝導率はプロトン伝導率である、請求項2に記載の複合陽極材料。
- 前記核形成粒子は前記活性陽極材料の内部に完全に埋め込まれる、請求項1に記載の複合陽極材料。
- 前記核形成粒子は伝導性材料を含む、請求項1に記載の複合陽極材料。
- 前記伝導性材料は金属を含む、請求項5に記載の複合陽極材料。
- 前記伝導性材料はニッケルを含む、請求項5に記載の複合陽極材料。
- 前記伝導性材料はニッケル合金を含む、請求項5に記載の複合陽極材料。
- 前記伝導性材料は銅を含む、請求項5に記載の複合陽極材料。
- 前記伝導性材料は銅合金を含む、請求項5に記載の複合陽極材料。
- 前記伝導性材料は、酸化物、窒化物、炭化カルシウム、ケイ化物、及びホウ化物から選択された一の材料を含む、請求項5に記載の複合陽極材料。
- 前記伝導性材料は、炭素及び黒鉛から選択された一の材料を含む、請求項5に記載の複合陽極材料。
- 前記伝導性材料は、酸化銅、酸化コバルト、及び酸化インジウムスズから選択された少なくとも一の材料を含む、請求項5に記載の複合陽極材料。
- 前記核形成粒子は繊維である、請求項1に記載の複合陽極材料。
- 前記核形成粒子は10ミクロン未満の平均長を有する、請求項1に記載の複合陽極材料。
- 前記陽極材料は水酸化ニッケル材料を含む、請求項1に記載の複合陽極材料。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/135,460 | 1998-08-17 | ||
US09/135,460 US6177213B1 (en) | 1998-08-17 | 1998-08-17 | Composite positive electrode material and method for making same |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010171955A Division JP2010282973A (ja) | 1998-08-17 | 2010-07-30 | 複合陽極材料およびその製法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012023049A JP2012023049A (ja) | 2012-02-02 |
JP5467086B2 true JP5467086B2 (ja) | 2014-04-09 |
Family
ID=22468210
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000565576A Expired - Fee Related JP3578992B2 (ja) | 1998-08-17 | 1999-08-11 | 複合陽極材料およびその製法 |
JP2004043303A Expired - Lifetime JP5099960B2 (ja) | 1998-08-17 | 2004-02-19 | 複合陽極材料およびその製法 |
JP2010171955A Pending JP2010282973A (ja) | 1998-08-17 | 2010-07-30 | 複合陽極材料およびその製法 |
JP2011201852A Expired - Lifetime JP5467086B2 (ja) | 1998-08-17 | 2011-09-15 | 複合陽極材料 |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000565576A Expired - Fee Related JP3578992B2 (ja) | 1998-08-17 | 1999-08-11 | 複合陽極材料およびその製法 |
JP2004043303A Expired - Lifetime JP5099960B2 (ja) | 1998-08-17 | 2004-02-19 | 複合陽極材料およびその製法 |
JP2010171955A Pending JP2010282973A (ja) | 1998-08-17 | 2010-07-30 | 複合陽極材料およびその製法 |
Country Status (12)
Country | Link |
---|---|
US (4) | US6177213B1 (ja) |
EP (2) | EP1496555B1 (ja) |
JP (4) | JP3578992B2 (ja) |
KR (2) | KR100725609B1 (ja) |
AU (1) | AU759414B2 (ja) |
BR (1) | BR9913060A (ja) |
CA (1) | CA2339211A1 (ja) |
MX (1) | MX216887B (ja) |
NO (1) | NO20010772L (ja) |
RU (1) | RU2208270C2 (ja) |
TW (1) | TW432739B (ja) |
WO (1) | WO2000010212A1 (ja) |
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1998
- 1998-08-17 US US09/135,460 patent/US6177213B1/en not_active Expired - Lifetime
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1999
- 1999-08-11 MX MXPA01001580 patent/MX216887B/es not_active IP Right Cessation
- 1999-08-11 EP EP04024169.7A patent/EP1496555B1/en not_active Expired - Lifetime
- 1999-08-11 KR KR1020017001991A patent/KR100725609B1/ko not_active IP Right Cessation
- 1999-08-11 EP EP99939133.7A patent/EP1116287B1/en not_active Expired - Lifetime
- 1999-08-11 AU AU53476/99A patent/AU759414B2/en not_active Ceased
- 1999-08-11 CA CA002339211A patent/CA2339211A1/en not_active Abandoned
- 1999-08-11 JP JP2000565576A patent/JP3578992B2/ja not_active Expired - Fee Related
- 1999-08-11 KR KR1020067017476A patent/KR20060105055A/ko not_active Application Discontinuation
- 1999-08-11 BR BR9913060-2A patent/BR9913060A/pt not_active Application Discontinuation
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- 1999-08-11 RU RU2001107121/09A patent/RU2208270C2/ru not_active IP Right Cessation
- 1999-08-20 TW TW088114217A patent/TW432739B/zh not_active IP Right Cessation
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2000
- 2000-12-30 US US09/751,176 patent/US6569566B2/en not_active Expired - Lifetime
- 2000-12-30 US US09/751,177 patent/US6548209B2/en not_active Expired - Lifetime
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US6569566B2 (en) | 2003-05-27 |
AU759414B2 (en) | 2003-04-17 |
JP2010282973A (ja) | 2010-12-16 |
US20010019799A1 (en) | 2001-09-06 |
EP1116287A1 (en) | 2001-07-18 |
JP5099960B2 (ja) | 2012-12-19 |
US20020146505A1 (en) | 2002-10-10 |
EP1496555A3 (en) | 2010-03-24 |
CA2339211A1 (en) | 2000-02-24 |
EP1496555B1 (en) | 2013-06-19 |
RU2208270C2 (ru) | 2003-07-10 |
NO20010772L (no) | 2001-04-17 |
KR20060105055A (ko) | 2006-10-09 |
JP2002522894A (ja) | 2002-07-23 |
EP1116287B1 (en) | 2013-06-26 |
TW432739B (en) | 2001-05-01 |
US6548209B2 (en) | 2003-04-15 |
EP1496555A2 (en) | 2005-01-12 |
AU5347699A (en) | 2000-03-06 |
EP1116287A4 (en) | 2003-04-02 |
BR9913060A (pt) | 2001-05-08 |
JP2012023049A (ja) | 2012-02-02 |
US6177213B1 (en) | 2001-01-23 |
MXPA01001580A (es) | 2002-04-08 |
NO20010772D0 (no) | 2001-02-15 |
KR100725609B1 (ko) | 2007-06-08 |
WO2000010212A1 (en) | 2000-02-24 |
KR20010082174A (ko) | 2001-08-29 |
JP3578992B2 (ja) | 2004-10-20 |
MX216887B (es) | 2003-10-10 |
US20010023040A1 (en) | 2001-09-20 |
US6348285B2 (en) | 2002-02-19 |
JP2004214210A (ja) | 2004-07-29 |
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