首页|Improved performance of LiMn0.8Fe0.2PO4 by addition of fluoroethylene carbonate electrolyte additive
Improved performance of LiMn0.8Fe0.2PO4 by addition of fluoroethylene carbonate electrolyte additive
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The addition of electrolyte additives is an effective strategy for tuning the property of the electrolyte to engineer the electrode/electrolyte interface,and there exist obvious discrepancies regarding the effect of fluoroethylene carbonate(FEC)as an electrolyte additive on the performance of cathodes.Herein FEC is introduced into the electrolyte of the LiMn0.8Fe0.2PO4/Li cell and its effect on the properties of the LiMn0.8Fe0.2PO4 is investigated.It is found that the addition of FEC in the electrolyte has a positive effect on the performance of the LiMn0.8Fe0.2PO4 cathode,which can be attributed to the reduced products gen-erated by the interfacial side-reactions on the LiMn0.8Fe0.2PO4 cathode surface and the decreased metal dissolution in the FEC-containing electrolyte,thanks to the higher oxidation resistance of FEC and the easier and stronger binding of FEC and PF6-.
Faculty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China
Key Laboratory of Optoelectronic Materials Chemistry and Physics,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China
State Key Laboratory of Advanced Electromagnetic Engineering and Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China
National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFujian Provincial STS program supporting project of Chinese Academy of sciences
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