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公开(公告)号：US11557787B2
公开(公告)日：2023-01-17
申请号：US17200084
申请日：2021-03-12
发明人： Yuki Morikawa , Takuya Asari , Harunari Shimamura , Kouhei Tsuzuki , Katsunori Yanagida , Yo Kato
IPC分类号： H01M10/00 , H01M10/0525 , H01M10/0561 , H01M4/66 , H01M4/02
摘要： The present disclosure relates to a secondary battery module including a nonaqueous electrolyte secondary battery and an elastic body. The elastic body has a compressive elastic modulus of 5 MPa to 120 MPa. The positive electrode includes a positive electrode collector with a thermal conductive rate of 65 W/(m·K) to 150 W/(m·K). The negative electrode includes a negative electrode active material layer including a first layer and a second layer sequentially formed from a side with the negative electrode collector. The first layer contains first carbon-based active material particles with a 10% proof stress of 3 MPa or less. The second layer contains second carbon-based active material particles with a 10% proof stress of 5 MPa or greater.
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公开(公告)号：US20210296683A1
公开(公告)日：2021-09-23
申请号：US17200084
申请日：2021-03-12
发明人： Yuki Morikawa , Takuya Asari , Harunari Shimamura , Kouhei Tsuzuki , Katsunori Yanagida , Yo Kato
IPC分类号： H01M10/0525 , H01M10/0561 , H01M4/66
摘要： The present disclosure relates to a secondary battery module including a nonaqueous electrolyte secondary battery and an elastic body. The elastic body has a compressive elastic modulus of 5 MPa to 120 MPa. The positive electrode includes a positive electrode collector with a thermal conductive rate of 65 W/(m·K) to 150 W/(m·K). The negative electrode includes a negative electrode active material layer including a first layer and a second layer sequentially formed from a side with the negative electrode collector. The first layer contains first carbon-based active material particles with a 10% proof stress of 3 MPa or less. The second layer contains second carbon-based active material particles with a 10% proof stress of 5 MPa or greater.
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公开(公告)号：US20210013496A1
公开(公告)日：2021-01-14
申请号：US16982284
申请日：2019-01-22
发明人： Kouhei Tsuzuki , Yuki Morikawa , Hirokazu Wada , Yuta Matsuo , Kaori Ishikawa , Katsunori Yanagida
摘要： In a nonaqueous electrolyte secondary battery, a negative electrode mix layer includes a first layer and a second layer disposed successively from a negative electrode collector. The first layer contains a first carbon-based active material having a 10% compressive strength of 3 MPa or less and a silicon-based active material containing Si. The second layer contains a second carbon-based active material having a 10% compressive strength of 5 MPa or more and has a lower content (mass ratio) of the silicon-based active material than the first layer.
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公开(公告)号：US11909033B2
公开(公告)日：2024-02-20
申请号：US16982284
申请日：2019-01-22
发明人： Kouhei Tsuzuki , Yuki Morikawa , Hirokazu Wada , Yuta Matsuo , Kaori Ishikawa , Katsunori Yanagida
CPC分类号： H01M4/366 , H01M4/133 , H01M4/134 , H01M4/364 , H01M4/386 , H01M4/587 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： In a nonaqueous electrolyte secondary battery, a negative electrode mix layer includes a first layer and a second layer disposed successively from a negative electrode collector. The first layer contains a first carbon-based active material having a 10% compressive strength of 3 MPa or less and a silicon-based active material containing Si. The second layer contains a second carbon-based active material having a 10% compressive strength of 5 MPa or more and has a lower content (mass ratio) of the silicon-based active material than the first layer.
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