Investigation on the electrochemical performances of Li4Mn5O12 for battery applications

Zainol, N.H. and Osman, Z. and Kamarulzaman, N. and Rusdi, R. (2017) Investigation on the electrochemical performances of Li4Mn5O12 for battery applications. Ionics, 23 (2). pp. 303-307. ISSN 0947-7047

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Official URL: http://dx.doi.org/10.1007/s11581-016-1855-2

Abstract

In this study, well-crystallized Li4Mn5O12 powder was synthesized by a self-propagating combustion method using citric acid as a reducing agent. Various conditions were studied in order to find the optimal conditions for the synthesis of pure Li4Mn5O12. The precursor obtained was then annealed at different temperatures for 24 h in a furnace. X-ray diffraction results showed that Li4Mn5O12 crystallite is stable at relatively low temperature of 400 °C but decompose to spinel LiMn2O4 and monoclinic Li2MnO3 at temperatures higher than 500 °C. The prepared samples were also characterized by FESEM and charge-discharge tests. The result showed that the specific capacity of 70.7 mAh/g was obtained within potential range of 4.2 to 2.5 V at constant current of 1.0 mA. The electrochemical performances of Li4Mn5O12 material was further discussed in this paper.

Item Type: Article
Uncontrolled Keywords: Cathode material; Li4Mn5O12; Li-ion battery; XRD; FESEM
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 08 Jun 2018 05:19
Last Modified: 08 Jun 2018 05:19
URI: http://eprints.um.edu.my/id/eprint/18850

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