Effect of MWCNT on prepared cathode material (Li{sub 2}Mn{sub (x)}Fe{sub (1-x)}SiO{sub 4}) for energy storage applications

Agnihotri, Shruti; Rattan, Sangeeta

doi:10.1063/1.4946490

Title: Effect of MWCNT on prepared cathode material (Li{sub 2}Mn{sub (x)}Fe{sub (1-x)}SiO{sub 4}) for energy storage applications

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Abstract

The electrode material Li{sub 2}MnFeSiO{sub 4} was successfully synthesized by standard sol–gel method and further modified with multiwalled carbon nano tube (MWCNT) to achieve better electrochemical properties. Our strategy helps us to improve the performance and storage capacity as compared with the bared material. This novel composite structure constructs an efficient cation (Li{sup +}) and electron channel which significantly enhance the Li{sup +} ion diffusion coefficient and reduced charge transfer resistance. Hence leads to high conductivity and specific capacity. Characterization technique like Field emission scanning electron microscopy (FESEM) has been used to confirm its morphology, structure and particle size which comes out to be of the order of ∼20 to 30 nm. Lesser particle size reveals better electrochemical properties. Electrical conductivity (∼10{sup −5} Scm{sup −1}) of MWCNT doped oxide cathode materials was recorded using ac impedance spectroscopy technique which reflects tenfold increment when compared with pure oxide cathode materials. Cyclic voltametery analysis has been done to calculate specific capacity and potential window of materials with and without CNTs. The results obtained from different techniques are well correlated and suitable for energy storage applications.

Authors:: Agnihotri, Shruti; Rattan, Sangeeta

Publication Date:: Fri May 06 00:00:00 EDT 2016

OSTI Identifier:: 22606515

Resource Type:: Journal Article

Journal Name:: AIP Conference Proceedings

Additional Journal Information:: Journal Volume: 1728; Journal Issue: 1; Conference: ICC 2015: International conference on condensed matter and applied physics, Bikaner (India), 30-31 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X

Country of Publication:: United States

Language:: English

Subject:: 77 NANOSCIENCE AND NANOTECHNOLOGY; CAPACITY; CARBON NANOTUBES; CATHODES; DIFFUSION; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; ELECTROCHEMISTRY; ENERGY STORAGE; FIELD EMISSION; IMPEDANCE; IRON COMPOUNDS; LITHIUM COMPOUNDS; LITHIUM IONS; MANGANESE COMPOUNDS; PARTICLE SIZE; SCANNING ELECTRON MICROSCOPY; SILICATES; SILICON OXIDES; SOL-GEL PROCESS; SPECTROSCOPY

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                    Agnihotri, Shruti, Rattan, Sangeeta, and Sharma, A. L., E-mail: alsharmaiitkgp@gmail.com. Effect of MWCNT on prepared cathode material (Li{sub 2}Mn{sub (x)}Fe{sub (1-x)}SiO{sub 4}) for energy storage applications.  United States: N. p., 2016. 
        Web.  doi:10.1063/1.4946490.

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                    Agnihotri, Shruti, Rattan, Sangeeta, & Sharma, A. L., E-mail: alsharmaiitkgp@gmail.com. Effect of MWCNT on prepared cathode material (Li{sub 2}Mn{sub (x)}Fe{sub (1-x)}SiO{sub 4}) for energy storage applications.  United States.  https://doi.org/10.1063/1.4946490

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                    Agnihotri, Shruti, Rattan, Sangeeta, and Sharma, A. L., E-mail: alsharmaiitkgp@gmail.com. 2016.  
        "Effect of MWCNT on prepared cathode material (Li{sub 2}Mn{sub (x)}Fe{sub (1-x)}SiO{sub 4}) for energy storage applications".  United States.  https://doi.org/10.1063/1.4946490.

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@article{osti_22606515,

  title        = {Effect of MWCNT on prepared cathode material (Li{sub 2}Mn{sub (x)}Fe{sub (1-x)}SiO{sub 4}) for energy storage applications},

  author       = {Agnihotri, Shruti and Rattan, Sangeeta and Sharma, A. L., E-mail: alsharmaiitkgp@gmail.com},

  abstractNote = {The electrode material Li{sub 2}MnFeSiO{sub 4} was successfully synthesized by standard sol–gel method and further modified with multiwalled carbon nano tube (MWCNT) to achieve better electrochemical properties. Our strategy helps us to improve the performance and storage capacity as compared with the bared material. This novel composite structure constructs an efficient cation (Li{sup +}) and electron channel which significantly enhance the Li{sup +} ion diffusion coefficient and reduced charge transfer resistance. Hence leads to high conductivity and specific capacity. Characterization technique like Field emission scanning electron microscopy (FESEM) has been used to confirm its morphology, structure and particle size which comes out to be of the order of ∼20 to 30 nm. Lesser particle size reveals better electrochemical properties. Electrical conductivity (∼10{sup −5} Scm{sup −1}) of MWCNT doped oxide cathode materials was recorded using ac impedance spectroscopy technique which reflects tenfold increment when compared with pure oxide cathode materials. Cyclic voltametery analysis has been done to calculate specific capacity and potential window of materials with and without CNTs. The results obtained from different techniques are well correlated and suitable for energy storage applications.},

  doi          = {10.1063/1.4946490},

  url          = {https://www.osti.gov/biblio/22606515},
  journal      = {AIP Conference Proceedings},

  issn         = {0094-243X},

  number       = 1,

  volume       = 1728,

  place        = {United States},

  year         = {Fri May 06 00:00:00 EDT 2016},

  month        = {Fri May 06 00:00:00 EDT 2016}

}

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