COMPOSITE ACTIVE MATERIAL
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United States of America
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Issued Date -
Jan 9, 2025
app pub date -
Dec 26, 2022
filing date -
Dec 26, 2022
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Abstract
A composite active material has an active material and a surface portion that is disposed on the surface of the active material and that contains a sulfur-containing compound. The sulfur-containing compound contains a crystalline phase having an argyrodite-type crystal structure. It is preferable that the active material contains a lithium (Li) element and an element M, where M is at least one of a nickel (Ni) element, a cobalt (Co) element, a manganese (Mn) element, and an aluminum (Al) element. It is also preferable that the active material has a core particle and a coating portion disposed on the surface of the core particle.
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