TY - JOUR
T1 - Carbon-filament-entangled lithium iron phosphate/carbon composite produced in partially reductive atmosphere
T2 - Dual role of the iron as source material and catalyst
AU - Yao, Jinhan
AU - Wang, Jianbo
AU - Zhang, Pinjie
AU - Gregory, Duncan H.
AU - Ma, Chun'An
AU - Wang, Lianbang
N1 - Funding Information:
This work was supported by the International Science and Technology Cooperation Program of China ( 2012DFG42100 ), and the Doctoral Program of Higher Education of China ( 2011010113003 ), Zhejiang Provincial Natural Science Foundation of China (Grant no. LQ12B01003 ), Zhejiang University of Technology start-up fund (Grant no. 101009529 ), National Natural Science Foundation of China (NSFC, Grant nos. 20506024 and 21173190 ) and the State Key Development Program for Basic Research of china (Grant no. 2007CB216409 ).
PY - 2013/3
Y1 - 2013/3
N2 - Various morphologies of carbon-LiFePO4 composites can be achieved via the reaction of the appropriate iron or iron oxalate and hydrated phosphates with sucrose as the source of carbon in the Ar/H2 or Ar atmosphere. When sintering in Ar condition, the resulting composite comprised a LiFePO4 core coated with a carbon shell. By contrast, Ar/H 2-derived composites produced under a partially reductive atmosphere consisted of olivine particles enmeshed in a carbon filament matrix with the catalytic effect of Fe. Specific capacities as high as 140 mA h g-1 at 1 C and 93 mA h g-1 at 10 C were obtained in carbon-filament- entangled LiFePO4 composite.
AB - Various morphologies of carbon-LiFePO4 composites can be achieved via the reaction of the appropriate iron or iron oxalate and hydrated phosphates with sucrose as the source of carbon in the Ar/H2 or Ar atmosphere. When sintering in Ar condition, the resulting composite comprised a LiFePO4 core coated with a carbon shell. By contrast, Ar/H 2-derived composites produced under a partially reductive atmosphere consisted of olivine particles enmeshed in a carbon filament matrix with the catalytic effect of Fe. Specific capacities as high as 140 mA h g-1 at 1 C and 93 mA h g-1 at 10 C were obtained in carbon-filament- entangled LiFePO4 composite.
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U2 - 10.1016/j.ceramint.2012.08.001
DO - 10.1016/j.ceramint.2012.08.001
M3 - Article
AN - SCOPUS:84870294246
VL - 39
SP - 2175
EP - 2181
JO - Ceramics International
JF - Ceramics International
SN - 0272-8842
IS - 2
ER -