Study on Multiple Doping of Spinel LiMn_2O_4

Abstract

The modified spinel lithium manganate doped with several ions was prepared by solid-state method. The prepared cathode material was characterized by XRD and all the samples have perfect spinel structure. The results of the charge and discharge curves showed that the cycle performance of LiMn_(1.93)Co_(0.02)Cr_(0.02)Al_(0.02)La_(0.01)O_4 and LiMn_(1.93)-Co_(0.02)Cr_(0.02)Al_(0.02)Zr_(0.01)O_4 have been improved so obviously that 94% and 91% of the initial capacity were preserved respectively after 50 cycles.

Key words: SPINEL TYPE STRUCTURE, DOPE, ZIRCONIUM MANGANATE, XRD

CLC Number:

O612

Cite this article

Tang Zhiyuan;Feng Jijun;Xu Guoxiang. Study on Multiple Doping of Spinel LiMn_2O_4[J]. Acta Chimica Sinica, 2003, 61(8): 1316-1318.

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尖晶石LiMn_2O_4的多元掺杂改性研究