NONAQUEOUS SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To improve an initial capacity, cycle characteristics, and preservation characteristics of a non-aqueous electrolyte secondary battery in which a high voltage charging is made with a potential of a positive electrode active material exceeding 4.3 V in lithium standard.

SOLUTION: Both 1,3-dioxane and a sulfonate compound are added to a non-aqueous electrolyte of a non-aqueous electrolyte secondary battery.

COPYRIGHT: (C)2009,JPO&INPIT