Patent ID: 9716268
Date: 2017-07-25
CPC Classifications: H01M,Y02E,Y02T

Claim:
1. A nonaqueous electrolyte secondary battery comprising: a positive electrode including a positive electrode mixture layer containing a positive electrode active material; a negative electrode containing a negative electrode active material; a separator provided between the positive electrode and the negative electrode; and a nonaqueous electrolyte, wherein a film of carbon material is formed over a surface of the positive electrode active material and metal halide particles are included in said film, the positive electrode active material is a lithium-containing transition metal oxide having a layered structure, the lithium-containing transition metal oxide containing nickel, the film of carbon material contains the metal halide particles uniformly dispersed therein, and a proportion of the metal halide particles with respect to a total amount of the film of carbon material and the metal halide particles included therein is 5% by mass or more and 50% by mass or less.