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公开(公告)号：US10439218B2
公开(公告)日：2019-10-08
申请号：US15692685
申请日：2017-08-31
发明人： Fumihiro Tejima , Yasuhiro Harada , Kazuki Ise , Norio Takami
IPC分类号： H01M4/485 , H01M10/0525 , H01M2/10 , C01G23/00 , C01G33/00 , B60L58/12 , B60L58/21 , B60L50/64 , H01M4/02
摘要： According to one embodiment, there is provided an active material including particles of a composite oxide having an orthorhombic crystal structure and represented by the general formula Li2+wNa2−xM1yTi6−zM2zO14−δ. The particles of the composite oxide have an average crystallite size of 50 nm to 90 nm and an average primary particle size of 0.1 μm to 0.6 μm. M1 is at least one selected from the group consisting of Cs and K. M2 is at least one selected from the group consisting of Zr, Sn, V, Nb, Ta, Mo, W, Fe, Y, Co, Mn, and Al. w falls within 0≤w≤4, x falls within 0
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公开(公告)号：US10854931B2
公开(公告)日：2020-12-01
申请号：US15392851
申请日：2016-12-28
IPC分类号： H01M10/42 , C01G51/00 , C01G33/00 , C01G39/00 , C01G49/00 , C01G45/12 , H01M2/30 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/58 , H01M10/44
摘要： According to one embodiment, an active material is provided. This active material includes active material particles containing orthorhombic Na-containing niobium titanium composite oxide, and satisfies the following formula (1): 1≤A5/A0 (1) where A5 is a mole content ratio of a Li mole content L5 to a total of a Ti mole content T5 and a Nb mole content N5, and A0 is a mole content ratio of a Li mole content L0 to a total of a Ti mole content T0 and a Nb mole content N0.
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