期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 777, 期 -, 页码 688-692出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.11.037
关键词
Li-S battery; Co3O4; Polysulfide; Cathode; Electrochemical performance
资金
- Prominent Talent Project, Hebei University of Environmental Engineering [BJRC201701]
- Natural Science Foundation of Hebei Province [E2016415004]
- Project of Science and Technology Department of Hebei Province [15213629]
- scientific research Project item of Hebei province education office [QN2016032]
To inhibit the shuttle effect of Li-S batteries, many polar materials were applied to absorb the polysulfide due to their superior adsorption properties. Herein, bamboo-like polar Co3O4 nanofiber was prepared by hydrothermal method and used as sulfur host material. The as-prepared Co3O4-S composite electrode displayed excellent cycle stability because of its strong absorption of polysulfide. The Co3O4-S composite electrode exhibited high initial specific capacity of 1110 mAh g(-1) at 0.1C. Even when the current density improved to 1 C, the capacity of Co3O4-S composite electrode still remained 796 mAh g(-1) after 300 cycles. (C) 2018 Elsevier B.V. All rights reserved.
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