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Patent Agency Ranking
1.发明申请公开(公告)号：US20200035999A1
公开(公告)日：2020-01-30
申请号：US16497629
申请日：2018-02-16
Inventor： Kazuro Hayashida , Daisuke Katou
Abstract: A negative electrode material for a non-aqueous electrolyte secondary battery includes: a lithium silicate phase including lithium silicate particles; silicon particles dispersed in the lithium silicate phase; and a low-melting point inorganic oxide that has a lower melting point than lithium silicate forming the lithium silicate particles, and that is solid at room temperature. The lithium silicate particles and the silicon particles form a particle agglomerate, and the low-melting point inorganic oxide is filled in at least a portion of voids included in the particle agglomerate.
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公开(公告)号：US11715822B2
公开(公告)日：2023-08-01
申请号：US16650236
申请日：2018-09-26
Inventor： Norihisa Yamamoto , Yohei Uchiyama , Tatsuya Akira , Kazuro Hayashida
CPC classification number: H01M4/364 , H01M4/134 , H01M4/136 , H01M4/366 , H01M4/386 , H01M4/5825 , H01M4/625 , H01M10/0525 , H01M2004/027
Abstract: Negative electrode active material particles comprise base particles having: a silicate phase containing Li2O, SiO2, at least one oxide selected from M12O3, M2O2, M32O5, and M4O3 (where M1, M2, M3, and M4 are elements other than alkali metals, alkali earth metals, and Si), and a discretionary component MO (where M is an alkali earth metal); and silicon particles dispersed in the silicate phase. The element contents for the elements contained in the silicate phase are: 3-33 mol % of Li; 40-78 mol % of S; and 1-40 mol % of M1, M2, M3, and M4. If MO is contained, the M content in the silicate phase is 1-10 mol %.
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公开(公告)号：US20210202930A1
公开(公告)日：2021-07-01
申请号：US16650236
申请日：2018-09-26
Inventor： Norihisa Yamamoto , Yohei Uchiyama , Tatsuya Akira , Kazuro Hayashida
Abstract: Negative electrode active material particles comprise base particles having: a silicate phase containing Li2O, SiO2, at least one oxide selected from M12O3, M2O2, M32O5, and M4O3 (where M1, M2, M3, and M4 are elements other than alkali metals, alkali earth metals, and Si), and a discretionary component MO (where M is an alkali earth metal); and silicon particles dispersed in the silicate phase. The element contents for the elements contained in the silicate phase are: 3-33 mol % of Li; 40-78 mol % of S; and 1-40 mol % of M1, M2, M3, and M4. If MO is contained, the M content in the silicate phase is 1-10 mol %.
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公开(公告)号：US11670772B2
公开(公告)日：2023-06-06
申请号：US16767791
申请日：2018-10-26
Inventor： Yohei Uchiyama , Norihisa Yamamoto , Tatsuya Akira , Kazuro Hayashida
IPC: H01M4/58 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M4/02
CPC classification number: H01M4/5825 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2004/021 , H01M2004/027 , H01M2004/028
Abstract: Negative electrode active material particles according to the present invention have composite particles that include: a sodium silicate phase with a Vickers hardness of 150 Hv or greater, and silicon particles dispersed in the sodium silicate phase.
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公开(公告)号：US10950852B2
公开(公告)日：2021-03-16
申请号：US16497629
申请日：2018-02-16
Inventor： Kazuro Hayashida , Daisuke Katou
Abstract: A negative electrode material for a non-aqueous electrolyte secondary battery includes: a lithium silicate phase including lithium silicate particles; silicon particles dispersed in the lithium silicate phase; and a low-melting point inorganic oxide that has a lower melting point than lithium silicate forming the lithium silicate particles, and that is solid at room temperature. The lithium silicate particles and the silicon particles form a particle agglomerate, and the low-melting point inorganic oxide is filled in at least a portion of voids included in the particle agglomerate.
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