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US 2026/0145952 A1Published application
Anode active material, solid-state battery, and method for manufacturing anode active material
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsSatoshi WAKASUGI, Masafumi Nose
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Abstract
An anode active material includes a plurality of Si-based particles. The Si-based particles include a porous Si particle and a metal oxide film that is present on at least a part of the surface of the porous Si particle. The metal oxide film contains at least one of an Mg element and an Al element.
Claims5
An anode active material comprising a plurality of Si-based particles, wherein:
- the Si-based particles include a porous Si particle and a metal oxide film that is present on at least a part of a surface of the porous Si particle;
- and
- the metal oxide film contains at least one of an Mg element and an Al element.
A method for manufacturing an anode active material, the method comprising:
- preparing a plurality of porous Si particles;
- and
- depositing a metal silicide onto the porous Si particles by physical vapor deposition in a non-oxidizing atmosphere to form a metal oxide film on at least a part of a surface of the porous Si particles, wherein
- the metal silicide contains at least one of an Mg element and an Al element.
1 more element
Dependencies are inferred from the claim text.