Stabilization of silicon nanoparticles in graphene aerogel framework for lithium ion storageElectronic supplementary information (ESI) available. See DOI: 10.1039/c5ra00566c

The severe volume change and aggregation of silicon nanoparticles (SiNPs) when used as an anode for lithium ion batteries (LIBs) are the key issue. Here, we demonstrate a novel approach to wrapping SiNPs in three-dimensional reduced graphene oxide (RGO) aerogel. The RGO aerogel not only provides a p...

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Main Authors: Xu, Binghui, Wu, Hao, Lin, C. X. (Cynthia), Wang, Bo, Zhang, Zhi, Zhao, X. S
Format: Article
Language:English
Online Access:Get full text
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Summary:The severe volume change and aggregation of silicon nanoparticles (SiNPs) when used as an anode for lithium ion batteries (LIBs) are the key issue. Here, we demonstrate a novel approach to wrapping SiNPs in three-dimensional reduced graphene oxide (RGO) aerogel. The RGO aerogel not only provides a porous network for entrapping SiNPs to accommodate the volume change during cycling, but also facilitates electrolyte transport. Furthermore, the continuous RGO network is favourable for electron transfer. The graphene-wrapped SiNPs were stable and displayed an excellent rate capacity, delivering a reversible capacity of about 2000 mA h g −1 after 40 cycles. Schematic illustration of the preparation of Si/RGO-AG.
ISSN:2046-2069
DOI:10.1039/c5ra00566c