Active material composite particle and battery
AssigneeDenso Corporation
InventorsYuta MASUO, Yuta SHIMONISHI, Shuhei YOSHIDA
Life of this patent
Estimating the term…
Abstract
An active material composite particle includes an active material particle and a coating layer. The coating layer is in contact with at least a part of a surface of the active material particle. The coating layer includes a first component formed of an oxide-based ionic conductor having a crystalline phase, and a second component different from the first component. Particles constituting the first component are higher in particle strength than particles constituting the second component.
Claims20
An active material composite particle comprising:
- an active material particle;
- and
- a coating layer in contact with at least a part of a surface of the active material particle, wherein
- the coating layer includes:
- a first component formed of an oxide-based ionic conductor having a crystalline phase;
- and
- a second component formed of a different component from the first component, and
- particles constituting the first component are higher in particle strength than particles constituting the second component.
An active material composite particle comprising:
- an active material particle;
- and
- a coating layer in contact with at least a part of a surface of the active material particle, wherein
- the coating layer includes:
- a first component formed of an oxide-based ionic conductor having a crystalline phase;
- and
- a second component formed of a different component from the first component, and
- the second component has an amorphas phase, and a higher content of the amorphas phase than the first component.
A method for producing an active material composite particle comprising:
- mixing an active material particle with a first component that is formed of an oxide-based ionic conductor having a crystalline phase to form a first composite particle in which the active material particle is coated with the first component;
- and
- coating the first composite particle with a second component that is formed of a different component from the first component, wherein
- particles constituting the first component are higher in particle strength than particles constituting the second component.
Dependencies are inferred from the claim text.