LITHIUM ION SECONDARY BATTERY

摘要

Provided is a lithium ion secondary battery including a power generating element which includes at least one positive electrode plate, at least one negative electrode plate, and at least one separator. The ratio B/A (mcm) of volume resistivity B (mcm^3) of the power generating element to an area A (cm^2) per one in the positive electrode plate is greater than or equal to 0.4 and less than or equal to 0.9.