About TAKEI KATSUHITO
About (財)電力中央研究所
About technology development
About lithium ion battery
About hybrid vehicle
About cycle life
About lifetime diagnosis
About lifetime
About input output characteristic
About nickel-hydrogen battery
About nickel-cadmium electric cell
About plug-in hybrid vehicle
About 保存寿命
About Secondary batteries
About 重要性
About 二次電池