Abstract

A one-step microwave-assisted pyrolysis of ionic liquid process is developed to synthesize carbon-coated LiFePO4by using the ionic liquid [BMIm]N(CN)2as a carbon source. A thin layer of uniform and nanoscaled carbon film is formed on the LiFePO4particles surface with a strong interface. The electrochemical properties of LiFePO4are improved due to the carbon coating which increases the electronic conductivity of LiFePO4. The results indicate that the microwave-assisted pyrolysis of ionic liquid process is a rapid and efficient method to prepare carbon-coated LiFePO4material and other carbon-coated electrode materials.

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