Optimization of Cobalt Doped Chromium Oxide as Cathode Material for Secondary Lithium Batteries University of South Carolina

Format:

Conference/Event

Author/Creator:

Zhang, Dong, author.

Conference Name:

34th Intersociety Energy Conversion Engineering Conference (1999-08-02 : Vancouver, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

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)

Notes:

Vendor supplied data

Publisher Number:

1999-01-2687

Access Restriction:

Restricted for use by site license