首页|An olivine LiFe0.5Mn0.5PO4/rGO composite cathode material prepared from manganese ore tailings with excellent lithium storage performance
An olivine LiFe0.5Mn0.5PO4/rGO composite cathode material prepared from manganese ore tailings with excellent lithium storage performance
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The high-value utilization of manganese ore tail-ings is of great significance for saving mineral resources and achieving environmental protection.Herein,an olivine LiFe0.5Mn0.5PO4/rGO composite is synthesized by a simple precipitation method and subsequent high-temperature calci-nation process using the manganese ore tailings as raw material.The prepared LiFe0.5Mn0.5PO4/rGO composite exhibits supe-rior cycling stability(with 113.5 mAh·g-1 after 300 cycles at 1.0C(1.0C=170 mA·g-1))and superior rate performance(with 65.6 mAh·g-1 at 10.0C).Ex-situ XRD and electro-chemical impedance spectroscopy(EIS)analyses evidence that the LiFe0.5Mn0.5PO4/rGO material has excellent structural sta-bility and electrochemical reversibility during charge and dis-charge processes.Furthermore,the LiFe0.5Mn0.5PO4/rGO//graphite full Li-ion battery also exhibits excellent cycling stability indicating its potential commercialization value.
Wen-Han Xu、Jin-Huan Yao、Qi-Ze Huang、Shao-Shuai Bai、Yan-Wei Li、Ji-Qiong Jiang、Jian-Wen Yang
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Guangxi Key Laboratory of New Processing Technology for Nonferrous Metal and Materials,Ministry of Education,College of Materials Science and Engineering,Guilin University of Technology,Guilin 541004,China
Guangxi Key Laboratory of Electrochemical and Magneto-Chemical Functional Materials,College of Chemistry and Bioengineering,Guilin University of Technology,Guilin 541004,China
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