Catalytic behavior of V2O5 in rechargeable Li–O2 batteries

被引:1
|
作者
Sung Hoon Lim
Bok Ki Kim
Woo Young Yoon
机构
[1] Korea University,Department of Materials Science and Engineering
[2] Kwangwoon University,Department of Electronic Engineering
来源
Journal of Applied Electrochemistry | 2012年 / 42卷
关键词
Lithium–air battery; Lithium–oxygen battery; Vanadium pentoxide; Catalyst;
D O I
暂无
中图分类号
学科分类号
摘要
The possibility of using vanadium pentoxide (V2O5) as a catalyst in rechargeable lithium–oxygen (Li–O2) batteries was studied. A V2O5-carbon composite was cast onto Ni foam to form a cathode. Electrochemical cells designed based on the flat cell manufactured by Hohsen Corporation were fabricated. The initial discharge capacity was 715 mA h g−1, and the maximum discharge capacity reached 2,260 mA h g−1 during the twelfth cycle. The cell had high capacity retention during cycling (1.24 % during cycles 2–8). V2O5 acted as a catalyst as well as an active material, improving the specific capacity and capacity retention of the non-aqueous Li–O2 cell more effectively than do other materials.
引用
收藏
页码:1045 / 1048
页数:3
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