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Biosynthesis and electrochemical characteristics of LiFePO4/C by microwave processing

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Abstract

The yeast cells are adopted as a template and cementation agent to prepare LiFePO4/C with high surface area by co-precipitation and microwave processing. The electrochemical properties of the resultant products are investigated. The synthesized LiFePO4/C is characterized by means of X-ray diffraction, transmission electron microscopy (TEM), Brunauer–Emmett–Teller method, and battery test instrument. The LiFePO4/C particles with average size of 35-100 nm coated by porous carbon are observed by TEM. The LiFePO4/C, with the specific surface area of 98.3 m2/g, exhibits initial discharge specific capacity of 147 mAh/g and good cycle ability. The yeast cells as a template are used to synthesize the precursor LiFePO4/cells compounds. In microwave heating process, the use of yeast cells as reducing matter and cementation agent results in the enhancement of the electrochemical properties.

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Acknowledgments

The authors thank the Natural Science Foundation of China (grant nos. B2052140, B5050470) for the financial support; they also thank the Analytical Center of Shandong Institute of Light Industry and Shandong University, China, for the technological support.

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Correspondence to Wen He.

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Zhou, W., He, W., Li, Z. et al. Biosynthesis and electrochemical characteristics of LiFePO4/C by microwave processing. J Solid State Electrochem 13, 1819–1823 (2009). https://doi.org/10.1007/s10008-008-0762-5

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  • DOI: https://doi.org/10.1007/s10008-008-0762-5

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