Manganese type lithium ion battery for pure and hybrid electric vehicles

A manganese type Lithium ion battery was developed for both PEV(pure EV) an d HEV(hybrid EV) application by improving the weak points in conventional t echnology. A 90 Ah single cell was developed for PEV use, and it was applie d to an integrated 8-cell module which has an energy density of 93 Wh/kg an d 114 Wh/dm(3) and power density of 350 W/kg at depth of discharge (DOD) 85 %. The Mn type Li ion cell for PEV use was modified to give it a high power density. The 48-cell module for HEV has the output power density of 1350 W /kg at DOD 50%. These batteries are already used in commercial vehicles and are proving to have excellent performance. (C) 2001 Elsevier Science B.V. All rights reserved.