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

摘要

Provided are a negative electrode 1 for a non-aqueous electrolyte secondary battery and a non-aqueous electrolyte secondary battery including the negative electrode 1 for a non-aqueous electrolyte secondary battery, the negative electrode 1 including: a negative electrode current collector 10; and a plurality of columns 13 of alloy-formable active material being capable of absorbing and desorbing lithium ions and being supported on the surface of the negative electrode current collector 10 so as to extend outward; a polymer layer 15 including a lithium-ion permeable resin and being formed on the outer surface of each column 13 of alloy-formable active material, the polymer layer 15 having a thickness capable of leaving gaps 17 between the columns 13 of alloy-formable active material adjacent to each other unfilled.