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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Published in: | Ionics 2017-02, Vol.23 (2), p.303-307 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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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. |
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ISSN: | 0947-7047 1862-0760 |
DOI: | 10.1007/s11581-016-1855-2 |