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Energies 2017, 10(11), 1803; doi:10.3390/en10111803

Silicon-Carbon Composite Electrode Materials Prepared by Pyrolysis of a Mixture of Manila Hemp, Silicon Powder, and Flake Artificial Graphite for Lithium Batteries

Graduate School of Engineering, Mie University, Tsu 514-8507, Japan
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Received: 16 September 2017 / Revised: 4 November 2017 / Accepted: 6 November 2017 / Published: 8 November 2017
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Abstract

A high performance lithium anode is a key component for high energy density lithium batteries. Silicon based lithium anode materials are attractive for the lithium anode due to their high theoretical capacity. However, a severe problem is the huge volume change that occurs during cycling, resulting in a poor capacity retention. We have developed a silicon based anode that disperses silicon particles on a carbon paper made from Manila hemp. The composite silicon electrode materials showed a high initial coulombic efficiency of 83%. The initial capacity of 566 mAh g−1 based on the total weight of the electrode was retained at 491 mAh g−1 after 70 cycles at the charge and discharge rate of 100 mA g−1 and at room temperature. View Full-Text
Keywords: lithium-ion battery; silicon anode; carbon paper; cyclic performance lithium-ion battery; silicon anode; carbon paper; cyclic performance
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Si, Q.; Mori, D.; Takeda, Y.; Yamamoto, O.; Imanishi, N. Silicon-Carbon Composite Electrode Materials Prepared by Pyrolysis of a Mixture of Manila Hemp, Silicon Powder, and Flake Artificial Graphite for Lithium Batteries. Energies 2017, 10, 1803.

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