NON-AQUEOUS SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a battery that has a voltage gradient from the beginning to the completion of charge and discharge period and is improved in the detection precision of the residual capacity from the charge and discharge voltage in a battery which uses lithium titanium oxide in one of the positive electrode and the negative electrode. SOLUTION: The non-aqueous secondary battery is composed of a basic structure of a positive electrode, a negative electrode and a non-aqueous electrolyte and uses a lithium titanium oxide which has a spinel structure and expressed in a general formula Li1+XTi2-XO4 (X=-0.2-1/3) and amorphous in a part of the region in one of the positive electrode and the negative electrode.