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US 2026/0179930 A1Published application
Electrode active material and method for producing electrode active material
AssigneeDaido Steel Co., Ltd.
InventorsYuki TANAKA, Yuta KIMURA, Kyohei SHIMOMURA, Yuki HAMADA
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Abstract
An electrode active material including: a powder material that contains a Si phase composed of Si in which an element X is dissolved and a SiX compound phase composed of a compound of Si and the element X, in which the powder material has a cumulative 50% particle diameter D50 of 0.1 μm or more and 1.0 μm or less and a cumulative 99% particle diameter D99 of 3.0 μm or less, and the element X is at least one selected from Fe, Ti, Cr, Mn, Co, Ni, Zr, B, and P.
Claims11
An electrode active material comprising:
- a powder material that contains a Si phase composed of Si in which an element X is dissolved and a SiX compound phase composed of a compound of Si and the element X, wherein
- the powder material has a cumulative 50% particle diameter D50 of 0.1 μm or more and 1.0 μm or less and a cumulative 99% particle diameter D99 of 3.0 μm or less, and
- the element X is at least one selected from Fe, Ti, Cr, Mn, Co, Ni, Zr, B, and P.
Dependencies are inferred from the claim text.