Back to results
US 10,381,649 B2Granted
Electrode material for nonaqueous electrolyte battery, electrode for nonaqueous electrolyte battery, nonaqueous electrolyte battery including the same, and battery pack
AssigneeKabushiki Kaisha Toshiba
InventorsTakayuki Fukasawa, Kenji Essaki, Takashi Kuboki, Shinsuke Matsuno, Tomokazu Morita
Life of this patent
Estimating the term…
Abstract
An electrode material for a nonaqueous electrolyte battery that includes a composite particle that contains a silicon dioxide particle having an average primary particle size of D1, a silicon particle having an average primary particle size of D2, and a carbon material, where D1 is 5 nm or more and 80 nm or less and the ratio D2/D1 is 0.3 or more and 8 or less.
Claims9
An electrode material for a nonaqueous electrolyte battery comprising:
- a composite particle, wherein the composite particle comprises a silicon dioxide particle having an average primary particle size of D1, a silicon particle having an average primary particle size of D2, and a carbon material,
- wherein the D1 is 5 nm or more and 80 nm or less,
- wherein a ratio D2/D1 is 0.3 or more and 8 or less,
- wherein the silicon dioxide particles and the silicon particles are coated with the carbon material, and
- wherein the whole of the surface of the silicon dioxide particle and the silicon particle is coated with the carbon material, or a part thereof is exposed on the surface of the electrode material, wherein the silicon dioxide and the silicon particle exist independently.
2 more elements
Dependencies are inferred from the claim text.