发明公开
- 专利标题： NEGATIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
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申请号： EP21861554.0申请日： 2021-08-24
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公开(公告)号： EP4205885A1公开(公告)日： 2023-07-05
- 发明人: ASANO, Kazuko , OKI, Yukihiro , TAKEDA, Nanami , HIBINO, Mitsuhiro
- 申请人： Panasonic Intellectual Property Management Co., Ltd.
- 申请人地址： JP Osaka-shi, Osaka 540-6207 1-61, Shiromi 2-chome, Chuo-ku,
- 代理机构： Novagraaf International SA
- 优先权： JP2020162565 20200928
- 国际公布： WO2022045129 20220303
- 主分类号： B22F5/00
- IPC分类号： B22F5/00 ; C01B33/06 ; C22C16/00 ; C22C30/00 ; C22C19/03 ; H01M4/38
摘要：
A negative electrode active material for a secondary battery includes an intermetallic compound having a cage structure. The cage structure is constituted of at least one first atom located within a cage, and a plurality of second atoms arranged in a cage-like form so as to surround the first atom. The first atom is a zirconium atom, and the plurality of the second atoms include 8 or more and 16 or less silicon atoms.
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