Negative electrode and secondary battery including negative electrode

Abstract

A negative electrode including a negative electrode active material layer, in which the negative electrode active material layer includes a silicon-containing negative electrode active material and a conductive material, the silicon-containing negative electrode active material includes a core and a carbon layer on the core, the core includes SiOx, wherein 0<x<2 and at least one metal atom, the at least one metal atom includes at least one selected from the group consisting of Mg, Li, Al, and Ca, the silicon-containing negative electrode active material has a D5/D50 of 0.5 or more, a D5 of 3 μm or more, and a D50 of 4 μm or more and 11 μm or less, and the conductive material includes single-walled carbon nanotubes, and a secondary battery including the negative electrode.

Dependencies are inferred from the claim text.