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公开(公告)号：US20230261195A1
公开(公告)日：2023-08-17
申请号：US18010600
申请日：2021-06-15
申请人： KURARAY CO., LTD.
发明人： Kengo Tachikawa , Yoshihisa Inui
CPC分类号： H01M4/622 , C08L29/04 , C08L27/16 , C08L29/14 , C08L2203/20 , C08L2205/025
摘要： The present disclosure provides a binder for electricity storage device electrodes, said binder containing a polyvinyl alcohol resin and an electrolyte solution-swellable resin.
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公开(公告)号：US11637286B2
公开(公告)日：2023-04-25
申请号：US16628189
申请日：2018-07-04
申请人： KURARAY CO., LTD.
IPC分类号： H01M4/587 , C01B32/05 , H01M10/052 , H01B1/04 , H01M4/02
摘要： The present invention provides a carbonaceous material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries (e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, lithium air batteries) having high charge/discharge capacities, and preferably high charge/discharge efficiency and low resistance, a negative electrode comprising the carbonaceous material, a non-aqueous electrolyte secondary battery comprising the negative electrode, and a production method of the carbonaceous material. The present invention relates to a carbonaceous material having a nitrogen content obtained by elemental analysis of 3.5 mass % or more, a ratio of nitrogen content and hydrogen content (RN/H) of 6 or more and 100 or less, a ratio of oxygen content and nitrogen content (RO/N) of 0.1 or more and 1.0 or less, and a carbon interplanar spacing (d002) observed by X-ray diffraction measurement of 3.70 Å or more.
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公开(公告)号：US12080890B2
公开(公告)日：2024-09-03
申请号：US18063092
申请日：2022-12-08
申请人： KURARAY CO., LTD.
IPC分类号： H01M4/587 , C01B32/05 , H01B1/04 , H01M4/02 , H01M10/052
CPC分类号： H01M4/587 , C01B32/05 , H01B1/04 , H01M10/052 , C01P2002/78 , C01P2002/82 , C01P2006/12 , C01P2006/14 , C01P2006/40 , C01P2006/80 , H01M2004/021 , H01M2004/027
摘要： The present invention provides a carbonaceous material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries (e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, lithium air batteries) having high charge/discharge capacities, and preferably high charge/discharge efficiency and low resistance, a negative electrode comprising the carbonaceous material, a non-aqueous electrolyte secondary battery comprising the negative electrode, and a production method of the carbonaceous material. The present invention relates to a carbonaceous material having a nitrogen content obtained by elemental analysis of 3.5 mass % or more, a ratio of nitrogen content and hydrogen content (RN/H) of 6 or more and 100 or less, a ratio of oxygen content and nitrogen content (RO/N) of 0.1 or more and 1.0 or less, and a carbon interplanar spacing (d002) observed by X-ray diffraction measurement of 3.70 Å or more.
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公开(公告)号：US11492260B2
公开(公告)日：2022-11-08
申请号：US16628191
申请日：2018-07-04
申请人： KURARAY CO., LTD.
IPC分类号： C01B32/05
摘要： A problem to be solved by the present invention is to provide a carbonaceous material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries (e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, lithium air batteries) having high charge/discharge capacities and preferably high charge/discharge efficiency as well as low resistance, a negative electrode comprising the carbonaceous material, a non-aqueous electrolyte secondary battery comprising the negative electrode, and a production method of the carbonaceous material. The present invention relates to a carbonaceous material having a nitrogen element content of 1.0 mass % or more and an oxygen content of 1.5 mass % or less obtained by elemental analysis, a ratio of nitrogen element content and hydrogen element content (RN/H) of 6 or more and 100 or less, a ratio of oxygen element content and nitrogen element content (RO/N) of 0.1 or more and 1.0 or less, and a carbon interplanar spacing (d002) observed by X-ray diffraction measurement of 3.70 Å or more.
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