NEGATIVE ELECTRODE FOR SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To improve the cycle characteristics and the battery life by suppressing growth of a dendrite on the surface of the negative electrode and preventing deterioration in the negative electrode material due to the electrolyte or the like in a non-aqueous electrolyte secondary battery having a positive electrode and a negative electrode that are capable of inserting and discharging lithium ion. SOLUTION: A negative electrode active material 2 is arranged on the current collector 1 and the surface of the negative electrode active material 2 is coated by a negative electrode film 3 made of a diamond-like carbon.