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公开(公告)号：US10270087B2
公开(公告)日：2019-04-23
申请号：US15115928
申请日：2015-02-25
发明人： Masafumi Usui , Sukeyoshi Yamamoto , Noriyuki Negi
IPC分类号： B22F1/00 , H01M4/36 , C22C9/02 , H01M4/38 , H01M4/62 , H01M4/134 , H01M10/0525 , C22C1/04 , H01M4/02
摘要： Provided is a composite particle which can improve the capacity per volume and charge-discharge cycle characteristics. The composite particle includes a plurality of specific particles and a binding material. The specific particle contains an alloy phase. The alloy phase undergoes thermoelastic diffusionless transformation when releasing metal ions or occluding metal ions. The binding material contains at least one of non-graphite carbon and a carbon precursor. The plurality of specific particles bind with each other via the binding material.
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公开(公告)号：US10270092B2
公开(公告)日：2019-04-23
申请号：US15115918
申请日：2015-02-25
发明人： Sukeyoshi Yamamoto , Tatsuo Nagata , Noriyuki Negi
IPC分类号： B22F1/00 , B22F3/02 , B22F7/04 , B22F7/08 , B22F9/00 , B22F9/04 , B22F9/08 , C22C1/04 , C22C9/00 , C22C9/01 , C22C9/02 , C22C9/04 , C22C9/06 , C22C9/10 , H01M4/02 , H01M4/38 , B32B15/00 , C22C30/06 , H01M10/052
摘要： Provided is a negative electrode active material that can improve the discharge capacity per volume and charge-discharge cycle characteristics. The negative electrode active material according to the present embodiment contains an alloy phase. The alloy phase undergoes thermoelastic diffusionless transformation when releasing metal ions or occluding metal ions. The oxygen content of the negative electrode active material is not more than 5000 ppm in mass.
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3.发明申请公开(公告)号：US20180205082A1
公开(公告)日：2018-07-19
申请号：US15919518
申请日：2018-03-13
CPC分类号： H01M4/58 , B22F2007/047 , B22F2999/00 , C01B33/06 , C22C1/04 , C22C24/00 , C22C30/00 , C22C30/02 , H01M4/362 , H01M4/38 , H01M10/0525 , H01M10/054 , B22F7/04 , B22F1/0074
摘要： An electrode containing a clathrate compound is disclosed that is more likely to withstand load involved in repetition of penetration and desorption of, e.g., lithium ions compared to no guest substance-encapsulating silicon clathrate compounds. An electrode active material making up the electrode according to the present invention includes a clathrate compound. The clathrate compound contains a crystal lattice and a guest substance. The guest substance is encapsulated in the crystal lattice. It is preferable that the clathrate compound be a main component of the electrode active material that makes up the electrode.
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4.发明申请ELECTRODE ACTIVE MATERIAL, METHOD FOR PRODUCING ELECTRODE ACTIVE MATERIAL, ELECTRODE, BATTERY, AND METHOD FOR USING CLATHRATE COMPOUND 审中-公开电极活性材料，用于生产电极活性材料的方法，电极，电池以及使用层压体化合物的方法公开(公告)号：US20150243986A1
公开(公告)日：2015-08-27
申请号：US14430284
申请日：2013-09-25
IPC分类号： H01M4/58
CPC分类号： H01M4/58 , B22F2007/047 , B22F2999/00 , C01B33/06 , C22C1/04 , C22C24/00 , C22C30/00 , C22C30/02 , H01M4/362 , H01M4/38 , H01M10/0525 , H01M10/054 , B22F7/04 , B22F1/0074
摘要： Provided is an electrode active material containing a clathrate compound that is more likely to withstand load involved in repetition of penetration and desorption of, e.g., lithium ions compared to no guest substance-encapsulating silicon clathrate compounds. An electrode active material according to the present invention includes a clathrate compound. The clathrate compound contains a crystal lattice and a guest substance. The guest substance is encapsulated in the crystal lattice. It is preferable that the clathrate compound be a main component of the electrode active material.
摘要翻译： 提供了一种电极活性材料，其包含比没有客体物质封装的硅包合物化合物更可能承受例如锂离子的重复渗透和解吸的负载的包合物化合物。 根据本发明的电极活性材料包括包合物化合物。 包合物包含晶格和客体物质。 客体物质被包封在晶格中。 优选的是，包合化合物是电极活性物质的主要成分。
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公开(公告)号：US11056687B2
公开(公告)日：2021-07-06
申请号：US16301057
申请日：2017-05-18
摘要： A negative electrode active material is provided that is utilized in a nonaqueous electrolyte secondary battery, and that can improve the capacity per volume and charge-discharge cycle characteristics. The negative electrode active material according to the present embodiment contains an alloy having a chemical composition consisting of, in at %, Sn: 13.0 to 24.5% and Si: 3.0 to 15.0%, with the balance being Cu and impurities. The alloy particles contain a phase with a peak of the most intense diffraction line appearing in a range of 42.0 to 44.0 degrees of a diffraction angle 2θ, the most intense diffraction line being a diffraction line having the largest integrated diffraction intensity in an X-ray diffraction profile. A half-width of the most intense diffraction line of the alloy particles is in a range of 0.15 to 2.5 degrees.
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公开(公告)号：US10230103B2
公开(公告)日：2019-03-12
申请号：US15115930
申请日：2015-02-25
发明人： Sukeyoshi Yamamoto , Noriyuki Negi , Tatsuo Nagata
摘要： Provided is a negative electrode active material that can improve the discharge capacity per volume and charge-discharge cycle characteristics. The negative electrode active material of the present embodiment includes a powder material and an oxide layer. The powder material contains an alloy phase which undergoes thermoelastic diffusionless transformation when releasing metal ions or occluding the metal ions. The oxide layer is formed on the surface of the powder material, and has a thickness of not more than 10 nm.
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公开(公告)号：US10128493B2
公开(公告)日：2018-11-13
申请号：US15115920
申请日：2015-02-25
发明人： Sukeyoshi Yamamoto , Noriyuki Negi , Tatsuo Nagata
IPC分类号： H01M4/36 , C22C9/02 , H01M4/38 , H01M4/587 , H01M4/62 , H01M10/052 , H01M10/0525 , H01M4/02
摘要： Provided is a negative electrode active material which can improve discharge capacity per amount and charge-discharge cycle characteristics. The negative electrode active material of the present embodiment contains at least one of material A and material B, and material C: material A: carbonaceous powder material in which a ratio of a peak intensity at 1360 cm−1 with respect to a peak intensity at 1580 cm−1 in the Raman spectrum is not more than 0.5; material B: carbonaceous powder material in which a ratio of a peak intensity at 1360 cm−1 with respect to a peak intensity at 1580 cm−1 in the Raman spectrum is more than 0.5; material C: powder material whose main component is an active substance made up of an alloy phase. This alloy phase undergoes thermoelastic diffusionless transformation when releasing metal ions or occluding the metal ions.
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公开(公告)号：US10038184B2
公开(公告)日：2018-07-31
申请号：US15115925
申请日：2015-02-25
发明人： Sukeyoshi Yamamoto , Tatsuo Nagata
IPC分类号： H01M4/36 , H01M10/0525 , H01M4/38 , C22C9/02 , H01M4/02
CPC分类号： H01M4/364 , C22C9/00 , C22C9/01 , C22C9/02 , C22C9/04 , C22C9/06 , C22C9/10 , C22C29/005 , C22C29/06 , C22C29/067 , C22C29/12 , C22C29/14 , C22C29/16 , C22C32/0021 , C22C32/0052 , C22C32/0068 , C22C32/0073 , C22C32/0078 , H01M4/38 , H01M10/052 , H01M10/0525 , H01M2004/027 , Y02T10/7011
摘要： Provided is a negative electrode active material that can improve the discharge capacity per volume and/or charge-discharge cycle characteristics. The negative electrode active material according to the present embodiment contains an alloy phase and ceramics. The alloy phase undergoes thermoelastic diffusionless transformation when releasing or occluding metal ions. The ceramics is dispersed in the metal phase. The content of ceramics in the alloy phase is more than 0 to 50 mass % with respect to the total mass of the alloy phase and the ceramics.
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