Journal
IONICS
Volume 21, Issue 3, Pages 617-622Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-014-1218-9
Keywords
Li-ion batteries; Anodes; Electrochemical characterizations; Electrochemical stabilities; Charging/discharging
Funding
- Natural Science Foundation of China (NSFC) [51272128, 51302152, 51302153]
- Excellent Youth Foundation of Hubei Scientific Committee [2011CDA093]
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Reduced graphene oxide/porous Si composite was fabricated through magnesiothermic reduction of mesoporous silica and subsequent dispersing porous Si in the suspension of graphene oxide followed by reduced process. The electrochemical performance of the obtained reduced graphene oxide/porous Si composite was investigated as anode for lithium ion batteries, and it delivers a reversible capacity of about 815 mAh g(-1) at a rate of 100 mA g(-1) in the voltage range of 0.01-1.5 V after 50 cycles. The excellent electrochemical performance of the composite can be attributed to that of the porous structure of conductive reduced graphene oxide network, and dispersed Si particles can improve electronic conductivity and accommodate the large volume changes.
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