TY - JOUR
T1 - Enhanced cycle ability of spinel LiMn 2O 4 by controlling the phase purity and structural strain
AU - Yao, Jinhan
AU - Shen, Chaoqi
AU - Zhang, Pinjie
AU - Gregory, Duncan H.
AU - Wang, Lianbang
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (NSFC, Grant No. 20506024 ) and the State Key Development Program for Basic Research of china (Grant No. 2007CB216409 ), Zhejiang Provincial Natural Science Foundation of China (Grant No. LQ12B01003 ) and Zhejiang University of Technology start-up fund (Grant No. 101009529 ).
PY - 2012/11
Y1 - 2012/11
N2 - By applying the annealing step during the solid-state synthesis, well-crystallized spinel LiMn 2O 4 with high phase purity was fabricated. The sensitive effect of heating procedure on the structural and electrochemical properties of LiMn 2O 4 product was investigated. It was found that preheat-treatment-calcinations-annealing process can effectively eliminate the impurity phase. The post-annealing process also leads to a better crystalline and suitable strain for the LiMn 2O 4 product, which contributes to the enhanced cycling performance.
AB - By applying the annealing step during the solid-state synthesis, well-crystallized spinel LiMn 2O 4 with high phase purity was fabricated. The sensitive effect of heating procedure on the structural and electrochemical properties of LiMn 2O 4 product was investigated. It was found that preheat-treatment-calcinations-annealing process can effectively eliminate the impurity phase. The post-annealing process also leads to a better crystalline and suitable strain for the LiMn 2O 4 product, which contributes to the enhanced cycling performance.
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U2 - 10.1016/j.jpcs.2012.07.006
DO - 10.1016/j.jpcs.2012.07.006
M3 - Article
AN - SCOPUS:84864978601
SN - 0022-3697
VL - 73
SP - 1390
EP - 1395
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
IS - 11
ER -