期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 45, 期 41, 页码 22160-22165出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2020.05.176
关键词
Ferrites; Wide-range temperature; Lithium-ion batteries
资金
- National Natural Science Foundation of China [51172190, 21506182]
- Research Foundation of Education Department of Hunan Province [16C1535]
- Hunan 2011 Collaborative Innovation Center of Chemical Engineering & Technology with Environmental Benignity
The orthorhombic CaFe2O4 microrod has been facilely synthesized via a moderate precipitation-calcination process. Structural features and electrochemical performance of the CaFe2O4 have been investigated. When used for lithium-ion battery, the moderate surface energy of CaFe2O4 microrod is beneficial for preventing material agglomeration. CaFe2O4 microrod displays the low-temperature lithium-ion storage ability such that even when tested at -20 degrees C its reversible specific capacity gets exceeded 100 mAh g(-1) reversible specific capacity. Its room/high temperature electrochemical performance is also excellent. At the room temperature, the specific capacity contribution with 63-74%/96-98% of the first/third cycles are driven by surface controlled pseudocapacitance. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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