Development of High Power and Long Life Lithium Secondary Batteries

Lithium-ion batteries have been widely used for lap-top PC, cellular phones and DSC applications as they have high energy density. Rising of environmental awareness, lithium-ion batteries are expected to be applied to automobile applications and electric energy storage use. For Plug-in Hybrid Electric Vehicle (PHEV) and Battery Electric Vehicle (BEV) applications, longer calendar life is necessary compared to the conventional usage.