Journal
ELECTROCHIMICA ACTA
Volume 94, Issue -, Pages 16-20Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.01.131
Keywords
LiFePO4; Supercritical carbon dioxide (scCO(2)); Porous structure; Electrochemical performance
Categories
Funding
- Project for Academic Human Resources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality, PHR (IHLB)
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Porous LiFePO4 particles have been investigated as cathode materials for lithium ion batteries by introducing supercritical carbon dioxide (scCO(2)). First we produced LiFePO4 through hydrothermal method. Then scCO(2) was introduced to change the morphology of the particle. By controlling the experiment parameter, porous LiFePO4 was finally obtained. A solid-to-porous transformation mechanism was supposed based on the dissolution of LiFepO(4). Electrochemical measurements showed that porous structure greatly improved the performance of LiFePO4. (C) 2013 Elsevier Ltd. All rights reserved.
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