Back to results
US 10,833,325 B2Granted
Negative electrode active material
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsYusuke Sugiyama, Hirotaka Sone, Nobuhiro Goda, Takashi Mohri
Life of this patent
Estimating the term…
Abstract
A negative electrode active material is composed of a silicon material coated with a carbon layer containing a Group 4 to 6 metal. A method for producing a negative electrode active material includes a step of decomposing a compound containing the Group 4 to 6 metal and a carbon source by heating in the presence of a silicon material, the compound, and the carbon source.
Claims11
A negative electrode active material composed of a silicon material coated with a carbon layer containing a Group 4 to 6 metal,
- wherein the metal is contained in 1 mass % or less with respect to the negative electrode active material, or the metal is contained in 10 mole % or less with respect to a number of moles of carbon element present in the carbon layer.
Dependencies are inferred from the claim text.