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Research Data from Suzhou University Update Understanding of Electrochemicals

February 28, 2014



By a News Reporter-Staff News Editor at Energy Weekly News -- Data detailed on Electrochemicals have been presented. According to news reporting out of Jiangsu, People's Republic of China, by VerticalNews editors, research stated, "Graphene-decorated LiFePO4 composite is synthesized for the first time through in-situ pyrolysis and catalytic graphitization, in which glucose and a trace amount of FeSO4 are employed as the graphene source and catalyst precursor, respectively. Under Ar/H-2 (95:5) atmosphere at 750 degrees C, FeSO4 is thermally reduced to Fe nano-particles (Fe NPs) and glucose is pyrolyzed to carbon fragments first, followed by the in-situ growth of graphene sheets directly on the LiFePO4 nano-particles (LFP NPs) surface through the realignment of carbon fragments under the catalytic effect of the Fe NPs."

Our news journalists obtained a quote from the research from Suzhou University, "The graphene sheets not only form a compact and uniform coating layer throughout the LFP NPs, but also stretch out and cross-link into a conducting network around the LFP particles. The LiFePO4@graphene composite displays a high reversible specific capacity of 167.7 mAh g(-1) at 0.1C rate, superb rate performance with discharge capacity of 94.3 mAh g(-1) at 100C rate and much prolonged cycle life."

According to the news editors, the research concluded: "The remarkable electrochemical improvement is attributed to both electric and ionic conductivity increase as a result of in-situ grown graphene coatings along the LFP surface and the graphene network intrinsically connecting to the LFP particles."

For more information on this research see: In-situ growth of graphene decorations for high-performance LiFePO4 cathode through solid-state reaction. Journal of Power Sources, 2014;249():311-319. Journal of Power Sources can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Power Sources - www.elsevier.com/wps/product/cws_home/504093)

Our news journalists report that additional information may be obtained by contacting J. Li, Suzhou Univ, Sch Energy, Suzhou 215006, Jiangsu, People's Republic of China. Additional authors for this research include L. Zhang, L.F. Zhang, W.W. Hao, H.B. Wang, Q.T. Qu and H.H. Zheng.

Keywords for this news article include: Asia, Jiangsu, Electrochemicals, People's Republic of China

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Source: Energy Weekly News


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