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论文类型：期刊论文

发表时间：2015-06-01

发表刊物：6th International Symposium on Functional Materials (ISFM)

收录刊物：SCIE、EI、CPCI-S

卷号：8

期号：3,SI

ISSN号：1793-6047

关键字：LiMn2O4; modified solid state reaction; tartaric acid

摘要：Spinel LiMn2O4 was synthesized by a modified solid state reaction. We pretreated the reactants using tartaric acid as complexing agent through a grinding process to obtain uniform distribution of metal ions at atomic level. The structures, morphologies and electrochemical properties of the products were studied by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and galvanostatic charge-discharge test. The results show that adding tartaric acid during the chemical pretreatment plays an important role in the formation of regular and uniform particles, which is beneficial to the electrochemical performance of LiMn2O4. At the current density of 100 mA g(-1), the discharge capacity is 118 mAh g(-1) after 50 cycles with the capacity retention of 97%.