| abstract |
The present invention is a negative electrode active material for a non-aqueous electrolyte secondary battery, which has negative electrode active material particles, and the negative electrode active material particles contain a silicon compound SiO x , wherein, 0.5≤x≤1.6, and the silicon compound contains The lithium compound, the negative electrode active material for the non-aqueous electrolyte secondary battery is characterized in that at least a part of the surface of the silicon compound is covered by a carbon coating, at least a part of the surface of the silicon compound is at least a part of the surface of the carbon coating, or this At least a part of both is covered with a composite layer including a composite composed of an amorphous metal oxide and a metal hydroxide. Thus, there is provided a negative electrode active material for a nonaqueous electrolyte secondary battery that has high stability to an aqueous slurry, high capacity, and excellent cycle characteristics and initial efficiency. |