Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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Transactions of Nonferrous Metals Society of China

Vol. 20    No. 12    December 2010

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Preparation and characterization of spinel LiMn2O4 nanorods as
lithium-ion battery cathodes
CHEN Ze-hua(陈泽华) , HUANG Ke-long(黄可龙), LIU Su-qin(刘素琴), WANG Hai-yan(王海燕)

School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

Abstract:The hydrothermal synthesis of single-crystalline β-MnO2 nanorods and their chemical conversion into single-crystalline LiMn2O4 nanorods by a simple solid-state reaction were reported. This method has the advantages of producing pure, single-phase and crystalline nanorods. The LiMn2O4 nanorods have an diameter of about 300 nm. The discharge capacity and cyclic performance of the batteries were investigated. The LiMn2O4 nanorods show better cyclic performance with a capacity retention ratio of 86.2% after 100 cycles. Battery cyclic studies reveal that the prepared LiMn2O4 nanorods have high capacity with a first discharge capacity of 128.7 mA∙h/g.


Key words: spinel LiMn2O4 nanorods; β-MnO2 nanorods; hydrothermal synthesis; solid-state reaction; electro-chemical properties

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

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