Electrochemical Performance of Mn and Fe Substitution in LiCo0.9X0.1O2 Cathode Materials

Nor Syamilah Syamimi Mohd Abdillih; Norlida Kamarulzaman; Kelimah Elong; Nurhanna Badar; Mohd Sufri Mastuli

doi:10.4028/www.scientific.net/SSP.301.195

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HomeSolid State PhenomenaSolid State Phenomena Vol. 301Electrochemical Performance of Mn and Fe...

Electrochemical Performance of Mn and Fe Substitution in LiCo_0.9X_0.1O₂Cathode Materials

Abstract:

LiCo_0.9X_0.1O₂(where X=Mn and Fe) were synthesized using self-propagating combustion (SPC) method using citric acid as a combustion agent. The precursors of LiCo_0.9X_0.1O₂ were annealed at a temperature of 800 °C at 24 h. The phase and crystalinity of the materials were characterized using X-Ray Diffraction (XRD). All the materials were observed to be single and pure phase with no impurity peaks detected. The morphology and particle sizes of the materials were also analyzed using Field Emission Scanning Electron Microcopy (FESEM). Finally, the electrochemical performance of the materials was studied using charge-discharge cycling in the voltage range of 2.5 to 4.3 V. Based on the results from charge-discharge studies, Mn substituted cathode materials exhibit better specific discharge capacity compared with Fe substituted cathode materials.

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Periodical:

Solid State Phenomena (Volume 301)

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195-201

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https://doi.org/10.4028/www.scientific.net/SSP.301.195

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Online since:

March 2020

Authors:

Nor Syamilah Syamimi Mohd Abdillih*, Norlida Kamarulzaman, Kelimah Elong, Nurhanna Badar, Mohd Sufri Mastuli

Keywords:

Cathode, Electrochemical Performance, LiCoO₂, Self-Propagating Combustion

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