Preparation and Electrochemical Performance of a Honeycomb-like Porous Anode Material

Ground coffee is used to prepare a honeycomb-like porous anode material for Li-ion batteries. The microstructure and morphology of the as-prepared samples are characterized by X-ray diffraction and scanning electron microscopy. The material has a honeycomb-like porous morphology, a smaller specific...

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Published in:International journal of electrochemical science 2017-10, Vol.12 (10), p.9619-9625
Main Authors: Li, Xin-xiu, Hou, Jiao, Wang, Xing-wei, Liu, Xiong-fei, Hou, Chun-ping
Format: Article
Language:English
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Anode material
Coffee
Electrochemical performance
Honeycomb-like
Li-ion batteries
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description Ground coffee is used to prepare a honeycomb-like porous anode material for Li-ion batteries. The microstructure and morphology of the as-prepared samples are characterized by X-ray diffraction and scanning electron microscopy. The material has a honeycomb-like porous morphology, a smaller specific surface area than graphitized coke, and a relatively low degree of graphitization. Electrochemical tests show as-prepared anode material to have good low-temperature performance, large rate capability, and good cycling performance. At -30 °C, the material delivers a discharge capacity of 52.1 mAh g-1, which is more than three times that of graphitized needle coke artificial graphite anode material that is commercially available. Thus, it is suitable for high-power or energy storage batteries.
doi_str_mv 10.20964/2017.10.08
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subjects Anode material
Coffee
Electrochemical performance
Honeycomb-like
Li-ion batteries
title Preparation and Electrochemical Performance of a Honeycomb-like Porous Anode Material
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