NEGATIVE ELECTRODE AND SOLID STATE SECONDARY BATTERY INCLUDING THE SAME

Provided are a negative electrode including a negative electrode current collector and a first negative electrode active material layer disposed on the negative electrode current collector, wherein the negative electrode current collector includes a first metal substrate and a coating layer positioned on the first metal substrate and containing a second metal, the second metal having a greater Mohs hardness than the first metal, and a solid-state secondary battery including the negative electrode.