Issue |
E3S Web Conf.
Volume 385, 2023
2023 8th International Symposium on Energy Science and Chemical Engineering (ISESCE 2023)
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Article Number | 01019 | |
Number of page(s) | 4 | |
Section | Energy Development and Utilization and Energy Storage Technology | |
DOI | https://doi.org/10.1051/e3sconf/202338501019 | |
Published online | 04 May 2023 |
Optimization of Lithium iron phosphate delithiation voltage for energy storage application
School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, People’s Republic of China
a m18382351315_2@163.com
b* mwu@uesct.edu.cn
c 1849427926@qq.com
d jeffreyli001@163.com
Olivine-type lithium iron phosphate (LiFePO4) has become the most widely used cathode material for power batteries due to its good structural stability, stable voltage platform, low cost and high safety. The olivine-type iron phosphate material after delithiation has many lithium vacancies and strong cation binding ability, which is conducive to the large and rapid insertion of alkaline ions such as lithium, sodium and potassium. Therefore, the investigation of delithiation technology is of great significance. Electrochemical delithiation is a common method for preparing olivine-structured FePO4, which can maintain the structural stability and integrity of the material. In this work, the effect of voltage on the delithiation of LiFePO4 material was investigated by the electrochemical delithiation method in Na2SO4 as delithiation solution. The results show that 2.0 V is the best delithiation voltage, and the as-prepared FeO4 exhibits the highest specific capacity of 137.7 mAh g-1.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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