Development of a rack-mounted DC-power-supply system utilizing lithium-ion batteries for backup

This paper describes the characteristics on a rack-mounted DC-power-supply system utilizing lithium-ion batteries, which have higher energy density than conventional secondary batteries. The entire system is compact and light-weight so it is ideal as a high-energy-density backup power-supply. We report on functions, system configuration and characteristics of a rack-mounted DC-power-supply system utilizing lithium-ion batteries.