Synthesis of Lithium Manganate Powders by Spray Pyrolysis and its Application to Lithium Ion Batteries for Trams

Abstract

Spinel type lithium manganate nanopowders were prepared by spray pyrolysis using metal nitrate solution. Chemical analysis and X-ray diffraction showed that homogeneous and high purity lithium manganate powders were obtained. The charge/discharge capacity of lithium manganate was 110mAh/g at 1C. A lithium ion battery module was also developed for the tram and its performance examined. The energy and power density of lithium ion cells were 110Wh/kg and 1920W/kg, respectively. The performance of a tram using a 20kWh type lithium ion battery module was examined. The tram ran for 20km on one charge.