LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE LITHIUM ION SECONDARY BATTERY

A lithium ion secondary battery includes a positive electrode and a negative electrode in which a positive-to-negative electrode capacity ratio between a positive capacity of the positive electrode and a negative capacity of the negative electrode is in a range of 1.02 to 1.40, and a negative electrode irreversible capacity of the negative electrode is larger than a positive electrode irreversible capacity of the positive electrode.