Issue 45, 2017

A critical SiOx layer on Si porous structures to construct highly-reversible anode materials for lithium-ion batteries

Abstract

A novel Si/SiOx porous structure with a SiOx coating layer of varying thicknesses was prepared via a simple annealing and acid washing process. When used as an anode material for lithium-ion batteries, the Si/SiOx porous structure with an ∼9 nm SiOx coating layer demonstrates significantly improved electrochemical performance with a high reversible discharge capacity of over 915 mA h g−1 after 500 long cycles at 1 A g−1. The lithiation mechanism of a SiOx layer of different thicknesses has also been investigated.

Graphical abstract: A critical SiOx layer on Si porous structures to construct highly-reversible anode materials for lithium-ion batteries

Supplementary files

Article information

Article type
Communication
Submitted
09 Apr 2017
Accepted
11 May 2017
First published
12 May 2017

Chem. Commun., 2017,53, 6101-6104

A critical SiOx layer on Si porous structures to construct highly-reversible anode materials for lithium-ion batteries

Y. Chen, Y. Lin, N. Du, Y. Zhang, H. Zhang and D. Yang, Chem. Commun., 2017, 53, 6101 DOI: 10.1039/C7CC02732J

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