Optimization of Cobalt Doped Chromium Oxide as Cathode Material for Secondary Lithium Batteries 1999-01-2687
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 Co0.2CrOx exhibited an initial capacity of 290 mAh/g with an average discharge voltage of 3.0 V vs. Li/Li+. The lithiated Co0.2CrOx 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. (> 85% capacity for Co0.2CrOx and > 75% capacity for LiCo0.2CrOx at 0.65 C discharge rate).
Citation: Zhang, D., Popov, B., and White, R., "Optimization of Cobalt Doped Chromium Oxide as Cathode Material for Secondary Lithium Batteries," SAE Technical Paper 1999-01-2687, 1999, https://doi.org/10.4271/1999-01-2687. Download Citation
Author(s):
Dong Zhang, Branko N. Popov, Ralph E. White
Affiliated:
University of South Carolina
Pages: 8
Event:
34th Intersociety Energy Conversion Engineering Conference
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Carbon monoxide
Chromium
Lithium
Batteries
Optimization
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »