Investigation on the electrochemical performances of Li4Mn5O12 for battery applications

In this study, well-crystallized Li 4 Mn 5 O 12 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 Li 4 Mn 5 O 12 . The precursor obtained was then ann...

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Bibliographic Details
Published in:Ionics 2017-02, Vol.23 (2), p.303-307
Main Authors: Zainol, N. H., Osman, Z., Kamarulzaman, N., Rusdi, R.
Format: Article
Language:English
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Summary:In this study, well-crystallized Li 4 Mn 5 O 12 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 Li 4 Mn 5 O 12 . The precursor obtained was then annealed at different temperatures for 24 h in a furnace. X-ray diffraction results showed that Li 4 Mn 5 O 12 crystallite is stable at relatively low temperature of 400 °C but decompose to spinel LiMn 2 O 4 and monoclinic Li 2 MnO 3 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 Li 4 Mn 5 O 12 material was further discussed in this paper.
ISSN:0947-7047
1862-0760
DOI:10.1007/s11581-016-1855-2