POSITIVE ELECTRODE MATERIAL OF NONAQUEOUS LITHIUM-BASED ELECTRICITY STORAGE DEVICE

摘要

A positive electrode material of an electricity storage device maintaining a high capacity at a high output density is provided. In a positive electrode material of a nonaqueous lithium-based electricity storage device comprising a lithium ion storing and desorbing material as a negative electrode active substance, an activated carbon is used for a positive electrode active substance of the positive electrode material and satisfies the following expressions: 0.3