Negative electrode for secondary battery, and secondary battery

Abstract

A negative electrode for a secondary battery includes a negative electrode current collector and a negative electrode mixture layer including a negative electrode active material, wherein the negative electrode active material includes carbon particles and Si-containing particles, and in a distribution in a plane direction of the negative electrode mixture layer of a presence probability of Si element in a thickness direction of the negative electrode mixture layer, a difference of an upper limit value Rmax and a lower limit value Rmin in a 1σ region: Rmax−Rmin is 20% or less.

Dependencies are inferred from the claim text.