NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

In this nonaqueous electrolyte secondary battery, a negative electrode mixture layer has a first layer and a second layer formed in that order from the side of a negative electrode current collector. The first layer includes a first carbon-base active material with a 10% proof stress of less than or equal to 3 MPa, and a silicon-base active material containing Si. The second layer contains a second carbon-base active material with a 10% proof stress of greater than or equal to 5 MPa, and has a lower content ratio (mass ratio) of the silicon-base active material than the first layer.