In:
ChemElectroChem, Wiley, Vol. 2, No. 12 ( 2015-12), p. 1983-1990
Abstract:
A robust and electrochemically stable 3D nanoheterostructure consisting of Si nanoparticles (NPs), carbon nanotubes (CNTs) and reduced graphene oxide (rGO) is developed as an anode material (Si–CNT/rGO) for lithium‐ion batteries (LIBs). It integrates the benefits from its three building blocks of Si NPs, CNTs, and rGO; Si NPs offer high capacity, CNTs act as a mechanical, electrically conductive support to connect Si NPs, and highly electrically conductive and flexible rGO provides a robust matrix with enough void space to accommodate the volume changes of Si NPs upon lithiation/delithiation and to simultaneously assure good electric contact. The composite material shows a high reversible capacity of 1665 mAh g −1 with good capacity retention of 88.6 % over 500 cycles when cycled at 0.5 C, that is, a 0.02 % capacity decay per cycle. The high‐power capability is demonstrated at 10 C (16.2 A g −1 ) where 755 mAh g −1 are delivered, thus indicating promising characteristics of this material for high‐performance LIBs.
Type of Medium:
Online Resource
ISSN:
2196-0216
,
2196-0216
DOI:
10.1002/celc.201500323
Language:
English
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
2724978-5
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