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Issue 10, 2019
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Sand/carbon composites as low-cost lithium storage materials with superior electrochemical performance

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Abstract

Sand is one of the most abundant resources on the earth. Desert sand and the low-cost polymer polystyrene are used as raw materials to prepare sand/carbon composites for lithium storage using a low-cost and facile method. The electrochemical performance of sand is significantly improved by introducing PS-derived carbon frames. The sand/carbon composite shows a high reversible capacity of 555 mA h g−1 at 100 mA g−1 and superior cycling stability over 200 cycles. For the sand/carbon composites, the sand particles are linked with neighboring ones via carbon frames, increasing the electronic and ionic conductivity and alleviating the volume expansion/contraction during cycling. The unique microstructure is the main reason for the superior electrochemical performance of the sand/carbon composites. This work has developed a facile method to prepare anode materials for lithium ion batteries from natural sand and low-cost polymers.

Graphical abstract: Sand/carbon composites as low-cost lithium storage materials with superior electrochemical performance

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Publication details

The article was received on 24 Jan 2019, accepted on 01 Feb 2019 and first published on 05 Feb 2019


Article type: Paper
DOI: 10.1039/C9NJ00424F
New J. Chem., 2019,43, 4123-4129

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    Sand/carbon composites as low-cost lithium storage materials with superior electrochemical performance

    Y. Wang, L. Zhou, C. Liang, J. Zhang, H. Huang, Y. Gan, Y. Xia, X. Tao and W. Zhang, New J. Chem., 2019, 43, 4123
    DOI: 10.1039/C9NJ00424F

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