JP2018139216A - 膨張特性を有する電池活物質用のマルチシェル構造体 - Google Patents
膨張特性を有する電池活物質用のマルチシェル構造体 Download PDFInfo
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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
- H01M4/362—Composites
- H01M4/366—Composites as layered products
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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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
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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
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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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
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light 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
- H01M4/62—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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- 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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- 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
Abstract
Description
本特許出願は、参照により本明細書に明示的に組み込まれている、2013年6月17日に出願した「Multi−Shell Structures and Fabrication Methods for Battery Active Materials with Expansion Properties」という名称の米国特許非仮出願第13/919,818号明細書、及び、2012年6月18日に出願した「Multi Shell Structures Designed for Battery Active Materials with Expansion Properties」という名称の米国特許仮出願第61/661,336号明細書の優先権を主張するものである。
Claims (20)
- コア−シェル複合体を含む電池電極組成物であって、該複合体のそれぞれが、
電池の動作中に金属イオンを蓄積及び放出するように提供され、該金属イオンの該蓄積及び放出が、該活物質のかなりの体積変化を引き起こす、活物質と、
前記活物質と組み合わせて、前記体積変化に適応するように配置される可潰性のコアと、
少なくとも部分的に前記活物質及び前記コアを包み、前記活物質によって蓄積及び放出される前記金属イオンに対して実質的に透過性である材料から形成されるシェルと
を含む電池電極組成物。 - 前記可潰性のコアが、複数の開いた孔または閉じた孔によって前記体積変化を吸収する多孔性材料から形成される、請求項1に記載の電池電極組成物。
- 前記コアの前記多孔性材料が、多孔性かつ電気伝導性の炭素材料を含む、請求項2に記載の電池電極組成物。
- 前記活物質が、少なくとも部分的に前記コアの前記多孔性材料を包む、請求項2に記載の電池電極組成物。
- 前記活物質を前記コアの前記多孔性材料と共に散在させる、請求項2に記載の電池電極組成物。
- 前記多孔性材料が、1つもしくは複数の湾曲線状または湾曲平面状のバックボーンで形成された多孔性基体を含む、請求項2に記載の電池電極組成物。
- 前記多孔性材料が、前記多孔性基体と共に散在させた多孔性充填材をさらに含む、請求項6に記載の電池電極組成物。
- 前記可潰性のコアが、前記活物質によって包まれた中央の空隙を含む、請求項1に記載の電池電極組成物。
- 前記中央の空隙が前記活物質と直接接触する、請求項8に記載の電池電極組成物。
- 前記シェルが、前記活物質の酸化を防止するために、少なくとも部分的に前記活物質及び前記コアを包む保護コーティングを含む、請求項1に記載の電池電極組成物。
- 前記シェルが、少なくとも部分的に前記活物質及び前記コアを包む多孔性コーティングを含み、該多孔性コーティングが、体積変化にさらに適応するために、複数の開いた孔または閉じた孔を有する、請求項1に記載の電池電極組成物。
- 前記多孔性コーティング中の前記孔の少なくともいくつかが、第1の機能性充填材料で充填された閉じた孔である、請求項11に記載の電池電極組成物。
- 前記多孔性コーティング中の少なくともいくつかの他の孔が、第2の機能性充填材料で充填された閉じた孔である、請求項12に記載の電池電極組成物。
- 前記多孔性コーティング中の前記孔の少なくともいくつかが、前記多孔性コーティングと相互貫通し機能性充填材料で充填された開いた孔である、請求項11に記載の電池電極組成物。
- 前記シェルが内層及び外層を含む複合材料である、請求項1に記載の電池電極組成物。
- 前記内層が保護コーティング層または多孔性コーティング層の一方であり、前記外層が該保護コーティング層または該多孔性コーティング層の他方である、請求項15に記載の電池電極組成物。
- 前記内層が前記保護コーティング層であり、前記外層が前記多孔性コーティング層であり、前記複合材料が、少なくとも部分的の他の層を包み、(i)実質的に電気伝導性であり、かつ(ii)電解質溶媒の分子に対して実質的に不浸透性である材料から形成される追加のコーティング層をさらに含む、請求項16に記載の電池電極組成物。
- 前記活物質が、前記可潰性のコアのまわりに配置された、または、前記可潰性のコアと共に散在させた離散粒子を含む、請求項1に記載の電池電極組成物。
- 前記粒子が、前記活物質の酸化を防止するために保護コーティングで被覆される、請求項18に記載の電池電極組成物。
- 前記活物質が、前記可潰性のコアの上にコンフォーマルに被覆される、請求項1に記載の電池電極組成物。
Applications Claiming Priority (4)
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US201261661336P | 2012-06-18 | 2012-06-18 | |
US61/661,336 | 2012-06-18 | ||
US13/919,818 US20130344391A1 (en) | 2012-06-18 | 2013-06-17 | Multi-shell structures and fabrication methods for battery active materials with expansion properties |
US13/919,818 | 2013-06-17 |
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JP2018078796A Active JP6715877B2 (ja) | 2012-06-18 | 2018-04-17 | 膨張特性を有する電池活物質用のマルチシェル構造体 |
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US (2) | US20130344391A1 (ja) |
EP (2) | EP2862220B1 (ja) |
JP (2) | JP6328107B2 (ja) |
KR (1) | KR101592487B1 (ja) |
CN (2) | CN104521036B (ja) |
IN (1) | IN2014DN10891A (ja) |
WO (1) | WO2013192205A1 (ja) |
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CN105870407B (zh) | 2018-12-21 |
CN105870407A (zh) | 2016-08-17 |
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CN104521036A (zh) | 2015-04-15 |
JP6715877B2 (ja) | 2020-07-01 |
US20230343939A1 (en) | 2023-10-26 |
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EP2862220B1 (en) | 2022-10-05 |
EP4148827A1 (en) | 2023-03-15 |
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