Electrochemical performance of NASICON type carbon coated LiTi 2(PO4)3 with a spinel LiMn2O 4 cathode

V. Aravindan; W. Chuiling; S. Madhavi

doi:10.1039/c2ra20826a

Electrochemical performance of NASICON type carbon coated LiTi ₂(PO₄)₃ with a spinel LiMn₂O ₄ cathode

V. Aravindan, W. Chuiling, S. Madhavi^*

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

NASICON type LiTi₂(PO₄)₃ particles are synthesized by a modified pechini type polymerizable complex method at 1000 °C in an air atmosphere. The synthesized LiTi₂(PO ₄)₃ particles are ball milled and subsequently carbon coated from the carbonization of glucose (C-LiTi₂(PO ₄)₃). Li-insertion properties are evaluated in half-cell configurations (Li/C-LiTi₂(PO₄)₃) and delivered an initial discharge capacity of 117 mAh g^-1 at a current density of 15 mA g^-1. Carbon coating alleviates the severe capacity fading of LiTi₂(PO₄)₃ during cycling. A full-cell with an operating potential of 1.5 V is constructed employing C-LiTi ₂(PO₄)₃ as the anode with a spinel cathode, LiMn₂O₄, which delivered the first discharge capacity of 103 mAh g^-1 at current density of 150 mA g^-1. The LiMn₂O₄/C-LiTi₂(PO₄)₃ cell retains 72% of initial discharge capacity after 200 cycles and the results suggest that, the full-cell can be used for miniature applications by replacing other rechargeable systems like lead-acid, Ni-Cd and Ni-MH.

Original language	English
Pages (from-to)	7534-7539
Number of pages	6
Journal	RSC Advances
Volume	2
Issue number	19
DOIs	https://doi.org/10.1039/c2ra20826a
Publication status	Published - Sept 7 2012
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry
General Chemical Engineering

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abstract = "NASICON type LiTi2(PO4)3 particles are synthesized by a modified pechini type polymerizable complex method at 1000 °C in an air atmosphere. The synthesized LiTi2(PO 4)3 particles are ball milled and subsequently carbon coated from the carbonization of glucose (C-LiTi2(PO 4)3). Li-insertion properties are evaluated in half-cell configurations (Li/C-LiTi2(PO4)3) and delivered an initial discharge capacity of 117 mAh g-1 at a current density of 15 mA g-1. Carbon coating alleviates the severe capacity fading of LiTi2(PO4)3 during cycling. A full-cell with an operating potential of 1.5 V is constructed employing C-LiTi 2(PO4)3 as the anode with a spinel cathode, LiMn2O4, which delivered the first discharge capacity of 103 mAh g-1 at current density of 150 mA g-1. The LiMn2O4/C-LiTi2(PO4)3 cell retains 72% of initial discharge capacity after 200 cycles and the results suggest that, the full-cell can be used for miniature applications by replacing other rechargeable systems like lead-acid, Ni-Cd and Ni-MH.",

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N2 - NASICON type LiTi2(PO4)3 particles are synthesized by a modified pechini type polymerizable complex method at 1000 °C in an air atmosphere. The synthesized LiTi2(PO 4)3 particles are ball milled and subsequently carbon coated from the carbonization of glucose (C-LiTi2(PO 4)3). Li-insertion properties are evaluated in half-cell configurations (Li/C-LiTi2(PO4)3) and delivered an initial discharge capacity of 117 mAh g-1 at a current density of 15 mA g-1. Carbon coating alleviates the severe capacity fading of LiTi2(PO4)3 during cycling. A full-cell with an operating potential of 1.5 V is constructed employing C-LiTi 2(PO4)3 as the anode with a spinel cathode, LiMn2O4, which delivered the first discharge capacity of 103 mAh g-1 at current density of 150 mA g-1. The LiMn2O4/C-LiTi2(PO4)3 cell retains 72% of initial discharge capacity after 200 cycles and the results suggest that, the full-cell can be used for miniature applications by replacing other rechargeable systems like lead-acid, Ni-Cd and Ni-MH.

AB - NASICON type LiTi2(PO4)3 particles are synthesized by a modified pechini type polymerizable complex method at 1000 °C in an air atmosphere. The synthesized LiTi2(PO 4)3 particles are ball milled and subsequently carbon coated from the carbonization of glucose (C-LiTi2(PO 4)3). Li-insertion properties are evaluated in half-cell configurations (Li/C-LiTi2(PO4)3) and delivered an initial discharge capacity of 117 mAh g-1 at a current density of 15 mA g-1. Carbon coating alleviates the severe capacity fading of LiTi2(PO4)3 during cycling. A full-cell with an operating potential of 1.5 V is constructed employing C-LiTi 2(PO4)3 as the anode with a spinel cathode, LiMn2O4, which delivered the first discharge capacity of 103 mAh g-1 at current density of 150 mA g-1. The LiMn2O4/C-LiTi2(PO4)3 cell retains 72% of initial discharge capacity after 200 cycles and the results suggest that, the full-cell can be used for miniature applications by replacing other rechargeable systems like lead-acid, Ni-Cd and Ni-MH.

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Electrochemical performance of NASICON type carbon coated LiTi ₂(PO₄)₃ with a spinel LiMn₂O ₄ cathode

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