Zhang, Dong, Branko N. Popov, and Ralph E. White. 1999. “Optimization of cobalt doped chromium oxide as cathode material for secondary lithium batteries”. SAE Technical Papers, 121-27.
Abstract
Cobalt doped chromium oxides were synthesized and characterized as cathode materials for secondary lithium batteries. A small amount of Co as dopant in the chromium oxides provides greater stability to the structure of CrOx and helps in improving the high-rate behavior of these oxides. Optimized Co 0.2CrOx exhibited an initial capacity of 290 mAh/g with an average discharge voltage of 3.0 V vs. Li/Li+. The lithiated Co 0.2CrOx exhibited an initial capacity of 230 mAh/g. Both lithiated and non-lithated Co0.2CrOx were found to be reversible in the entire intercalation range (2.0 - 4.2 V vs. Li/Li +). Compared with pure CrOx, Co doped CrOx is characterized by better high-rate behavior. (\textgreater 85% capacity for Co 0.2CrOx and \textgreater 75% capacity for LiCo 0.2CrOx at 0.65 C discharge rate). Copyright © 1999 Society of Automotive Engineers, Inc.
Last updated on 09/07/2023