NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, AND MANUFACTURING METHOD OF NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode for a lithium ion secondary battery capable of improving initial charge characteristics of the lithium ion secondary battery, a manufacturing method for the negative electrode and the lithium ion secondary battery comprising the negative electrode for a lithium ion secondary battery.SOLUTION: A negative electrode for a lithium ion secondary battery comprises an Sn plating film as a negative electrode active material layer, and ratio I/Iof X-ray diffraction intensity Iat a (220) face of the Sn plating film and X-ray diffraction intensity Iat a (211) face of the Sn plating film is 0.7 to 1.2. A manufacturing method for the negative electrode of a lithium ion secondary battery comprises a step for forming the Sn plating film by electrolytic plating. The lithium ion secondary battery comprises the negative electrode for a lithium ion secondary battery.