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公开(公告)号：US11817577B2
公开(公告)日：2023-11-14
申请号：US17200058
申请日：2021-03-12
发明人： Yasunori Baba , Harunari Shimamura , Keisuke Ohara , Kohei Masai , Kouhei Tsuzuki , Katsunori Yanagida , Yo Kato
CPC分类号： H01M4/366 , H01M4/583 , H01M50/46 , H01M50/471 , H01M2004/027 , H01M2004/028
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 nonaqueous electrolyte secondary battery includes a positive electrode and a negative electrode. The positive electrode includes a positive electrode collector containing Ti as a main component and having a thickness of 1 μm to 8 μm. The negative electrode includes a first layer and a second layer sequentially formed from a side with the negative electrode collector. The first layer contains negative electrode active material particles containing first carbon-based active material particles with a 10% proof stress of 3 MPa or less. The second layer contains negative electrode active material particles containing 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：US20210296639A1
公开(公告)日：2021-09-23
申请号：US17200058
申请日：2021-03-12
发明人： Yasunori Baba , Harunari Shimamura , Keisuke Ohara , Kohei Masai , Kouhei Tsuzuki , Katsunori Yanagida , Yo Kato
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 nonaqueous electrolyte secondary battery includes a positive electrode and a negative electrode. The positive electrode includes a positive electrode collector containing Ti as a main component and having a thickness of 1 μm to 8 μm. The negative electrode includes a first layer and a second layer sequentially formed from a side with the negative electrode collector. The first layer contains negative electrode active material particles containing first carbon-based active material particles with a 10% proof stress of 3 MPa or less. The second layer contains negative electrode active material particles containing 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：US20220216474A1
公开(公告)日：2022-07-07
申请号：US17603466
申请日：2020-04-08
发明人： Yuji Yokoyama , Kouhei Tsuzuki , Kohei Masai
摘要： This negative electrode for non-aqueous electrolyte secondary batteries comprises a negative electrode core and a negative electrode mixture layer provided on the surface of the negative electrode core and including a negative electrode active substance. The negative electrode mixture layer has: a first layer including substantially only graphite having a BET specific surface area of 0.5-2.5 m2/g, as a negative electrode active substance; and a second layer including substantially only at least either an element that alloys with lithium or a compound containing said element, as a negative electrode active substance.
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