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https://www.ias.ac.in/article/fulltext/boms/046/0076 -
Keywords
Electrode material ;lithium-ion battery ;nanomaterial ;spinel cathode. -
Abstract
Cubic spinel LiMn$_2$O$_4$ (LMO) nanomaterial was synthesized by the solid-state method via double-step calcinations process, and AlPO$_4$ (AlP) nano-layer is used to modify the spinel LiMn$_2$O$_4$ (LMO) electrode material, which was manufactured using a chemical deposition solution process. The cubic spinel crystal structure of LiMn$_2$O$_4$ wrapped by the AlPO$_4$ layer was verified by structural analysis (XRD) and morphological analysis (FESEM and HRTEM). TEM result indicates that the AlPO$_4$ nano-layer does not affect the bulk structure of pristine LiMn$_2$O$_4$ material. The electrochemical results demonstrated that the AlPO$_4$-wrapped LiMn$_2$O$_4$ (AlP-LMO) cathode can still deliver its initial discharge capacity of 147.6 mAh g$^{-1}$, whereas the pristine LiMn$_2$O$_4$ cathode has an initial discharge capacity of 116.4 mAh g$^{-1}$ at 0.5 C rate. AlPO$_4$ nano coating can effectively prevent the increase of the charge transfer resistance during charge–discharge process and improve the electrochemical performance of AlP-LMO electrode due to the protective nature of AlPO$_4$ nano-layer.
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Graphical Abstract
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Author Affiliations
SHWETAMBAR PATEL1 RANVEER KUMAR1 SONIYA PATEL2 SUNIL SONI1 PUSHPENDRA SINGH1
- Department of Physics, Dr. Hari Singh Gour Central Vishwavidyalaya, Sagar 470003, India
- Department of Physics, Government Lal Bahadur Shastri PG College, Sironj 464228, India
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Dates
- Published
- 13 April 2023
- Manuscript received
- 5 September 2022
- Accepted
- 9 December 2022
- Final version published online
- 13 April 2023
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Bulletin of Materials Science
Volume 46, 2023
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