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Issue 18, 2016
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Sandwich electrode designed for high performance lithium-ion battery

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Abstract

We fabricated a sandwich structure Li-ion battery electrode by trapping micron-sized silicon between a copper current collector and a graphene coating. During dynamic electrochemical cycles, the volume change of the silicon can be buffered by the coating through the deformation of soft graphenes. This structure can effectively prevent the silicon particles from escaping from the current collector while keeping the buffered graphene coating integrated and unbroken during deformation. The electrodes could be maintained for 400 cycles at a constant charge capacity of 1000 mA h gāˆ’1.

Graphical abstract: Sandwich electrode designed for high performance lithium-ion battery

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Article information


Submitted
20 Dec 2015
Accepted
05 Apr 2016
First published
07 Apr 2016

Nanoscale, 2016,8, 9511-9516
Article type
Communication

Sandwich electrode designed for high performance lithium-ion battery

C. Zhao, X. Luo, C. Chen and H. Wu, Nanoscale, 2016, 8, 9511
DOI: 10.1039/C5NR09049K

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