Effect of fuel rate and annealing process of LiFePO4 cathode material for Li-ion batteries synthesized by flame spray pyrolysis method

Abdul Halim; W. Widiyastuti; Heru Setyawan; Siti Machmudah; Tantular Nurtono; Sugeng Winardi

doi:10.1063/1.4866754

Effect of fuel rate and annealing process of LiFePO₄ cathode material for Li-ion batteries synthesized by flame spray pyrolysis method

Abdul Halim, W. Widiyastuti, Heru Setyawan, Siti Machmudah, Tantular Nurtono, Sugeng Winardi

Institut Teknologi Sepuluh Nopember

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

6 Citations (Scopus)

Abstract

In this study the effect of fuel rate and annealing on particle formation of LiFePO₄ as battery cathode using flame spray pyrolysis method was investigated numerically and experimentally. Numerical study was done using ANSYS FLUENT program. In experimentally, LiFePO₄ was synthesized from inorganic aqueous solution followed by annealing. LPG was used as fuel and air was used as oxidizer and carrier gas. Annealing process attempted in inert atmosphere at 700°C for 240 min. Numerical result showed that the increase of fuel rate caused the increase of flame temperature. Microscopic observation using Scanning Electron Microscopy (SEM) revealed that all particles have sphere and polydisperse. Increasing fuel rate caused decreasing particle size and increasing particles crystallinity. This phenomenon attributed to the flame temperature. However, all produced particles still have more amorphous phase. Therefore, annealing needed to increase particles crystallinity. Fourier Transform Infrared (FTIR) analysis showed that all particles have PO₄ function group. Increasing fuel rate led to the increase of infrared spectrum absorption corresponding to the increase of particles crystallinity. This result indicated that phosphate group vibrated easily in crystalline phase. From Electrochemical Impedance Spectroscopy (EIS) analysis, annealing can cause the increase of Li⁺ diffusivity. The diffusivity coefficient of without and with annealing particles were 6.84399×10^-10 and 8.59888×10^-10 cm² s^-1, respectively.

Original language	English
Title of host publication	5th Nanoscience and Nanotechnology Symposium, NNS 2013
Publisher	American Institute of Physics Inc.
Pages	173-178
Number of pages	6
ISBN (Print)	9780735412187
DOIs	https://doi.org/10.1063/1.4866754
Publication status	Published - 2014
Event	5th Nanoscience and Nanotechnology Symposium, NNS 2013 - Surabaya, Indonesia Duration: 23 Oct 2013 → 25 Oct 2013

Publication series

Name	AIP Conference Proceedings
Volume	1586
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	5th Nanoscience and Nanotechnology Symposium, NNS 2013
Country/Territory	Indonesia
City	Surabaya
Period	23/10/13 → 25/10/13

Keywords

Flame spray pyrolysis

Access to Document

10.1063/1.4866754

Cite this

Halim, A., Widiyastuti, W., Setyawan, H., Machmudah, S., Nurtono, T., & Winardi, S. (2014). Effect of fuel rate and annealing process of LiFePO₄ cathode material for Li-ion batteries synthesized by flame spray pyrolysis method. In 5th Nanoscience and Nanotechnology Symposium, NNS 2013 (pp. 173-178). (AIP Conference Proceedings; Vol. 1586). American Institute of Physics Inc.. https://doi.org/10.1063/1.4866754

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title = "Effect of fuel rate and annealing process of LiFePO4 cathode material for Li-ion batteries synthesized by flame spray pyrolysis method",

abstract = "In this study the effect of fuel rate and annealing on particle formation of LiFePO4 as battery cathode using flame spray pyrolysis method was investigated numerically and experimentally. Numerical study was done using ANSYS FLUENT program. In experimentally, LiFePO4 was synthesized from inorganic aqueous solution followed by annealing. LPG was used as fuel and air was used as oxidizer and carrier gas. Annealing process attempted in inert atmosphere at 700°C for 240 min. Numerical result showed that the increase of fuel rate caused the increase of flame temperature. Microscopic observation using Scanning Electron Microscopy (SEM) revealed that all particles have sphere and polydisperse. Increasing fuel rate caused decreasing particle size and increasing particles crystallinity. This phenomenon attributed to the flame temperature. However, all produced particles still have more amorphous phase. Therefore, annealing needed to increase particles crystallinity. Fourier Transform Infrared (FTIR) analysis showed that all particles have PO4 function group. Increasing fuel rate led to the increase of infrared spectrum absorption corresponding to the increase of particles crystallinity. This result indicated that phosphate group vibrated easily in crystalline phase. From Electrochemical Impedance Spectroscopy (EIS) analysis, annealing can cause the increase of Li+ diffusivity. The diffusivity coefficient of without and with annealing particles were 6.84399×10-10 and 8.59888×10-10 cm2 s-1, respectively.",

keywords = "Flame spray pyrolysis",

author = "Abdul Halim and W. Widiyastuti and Heru Setyawan and Siti Machmudah and Tantular Nurtono and Sugeng Winardi",

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series = "AIP Conference Proceedings",

publisher = "American Institute of Physics Inc.",

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note = "5th Nanoscience and Nanotechnology Symposium, NNS 2013 ; Conference date: 23-10-2013 Through 25-10-2013",

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Halim, A, Widiyastuti, W , Setyawan, H , Machmudah, S , Nurtono, T & Winardi, S 2014, Effect of fuel rate and annealing process of LiFePO₄ cathode material for Li-ion batteries synthesized by flame spray pyrolysis method. in 5th Nanoscience and Nanotechnology Symposium, NNS 2013. AIP Conference Proceedings, vol. 1586, American Institute of Physics Inc., pp. 173-178, 5th Nanoscience and Nanotechnology Symposium, NNS 2013, Surabaya, Indonesia, 23/10/13. https://doi.org/10.1063/1.4866754

Effect of fuel rate and annealing process of LiFePO₄ cathode material for Li-ion batteries synthesized by flame spray pyrolysis method. / Halim, Abdul; Widiyastuti, W.; Setyawan, Heru et al.
5th Nanoscience and Nanotechnology Symposium, NNS 2013. American Institute of Physics Inc., 2014. p. 173-178 (AIP Conference Proceedings; Vol. 1586).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effect of fuel rate and annealing process of LiFePO4 cathode material for Li-ion batteries synthesized by flame spray pyrolysis method

AU - Halim, Abdul

AU - Widiyastuti, W.

AU - Setyawan, Heru

AU - Machmudah, Siti

AU - Nurtono, Tantular

AU - Winardi, Sugeng

PY - 2014

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N2 - In this study the effect of fuel rate and annealing on particle formation of LiFePO4 as battery cathode using flame spray pyrolysis method was investigated numerically and experimentally. Numerical study was done using ANSYS FLUENT program. In experimentally, LiFePO4 was synthesized from inorganic aqueous solution followed by annealing. LPG was used as fuel and air was used as oxidizer and carrier gas. Annealing process attempted in inert atmosphere at 700°C for 240 min. Numerical result showed that the increase of fuel rate caused the increase of flame temperature. Microscopic observation using Scanning Electron Microscopy (SEM) revealed that all particles have sphere and polydisperse. Increasing fuel rate caused decreasing particle size and increasing particles crystallinity. This phenomenon attributed to the flame temperature. However, all produced particles still have more amorphous phase. Therefore, annealing needed to increase particles crystallinity. Fourier Transform Infrared (FTIR) analysis showed that all particles have PO4 function group. Increasing fuel rate led to the increase of infrared spectrum absorption corresponding to the increase of particles crystallinity. This result indicated that phosphate group vibrated easily in crystalline phase. From Electrochemical Impedance Spectroscopy (EIS) analysis, annealing can cause the increase of Li+ diffusivity. The diffusivity coefficient of without and with annealing particles were 6.84399×10-10 and 8.59888×10-10 cm2 s-1, respectively.

AB - In this study the effect of fuel rate and annealing on particle formation of LiFePO4 as battery cathode using flame spray pyrolysis method was investigated numerically and experimentally. Numerical study was done using ANSYS FLUENT program. In experimentally, LiFePO4 was synthesized from inorganic aqueous solution followed by annealing. LPG was used as fuel and air was used as oxidizer and carrier gas. Annealing process attempted in inert atmosphere at 700°C for 240 min. Numerical result showed that the increase of fuel rate caused the increase of flame temperature. Microscopic observation using Scanning Electron Microscopy (SEM) revealed that all particles have sphere and polydisperse. Increasing fuel rate caused decreasing particle size and increasing particles crystallinity. This phenomenon attributed to the flame temperature. However, all produced particles still have more amorphous phase. Therefore, annealing needed to increase particles crystallinity. Fourier Transform Infrared (FTIR) analysis showed that all particles have PO4 function group. Increasing fuel rate led to the increase of infrared spectrum absorption corresponding to the increase of particles crystallinity. This result indicated that phosphate group vibrated easily in crystalline phase. From Electrochemical Impedance Spectroscopy (EIS) analysis, annealing can cause the increase of Li+ diffusivity. The diffusivity coefficient of without and with annealing particles were 6.84399×10-10 and 8.59888×10-10 cm2 s-1, respectively.

KW - Flame spray pyrolysis

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U2 - 10.1063/1.4866754

DO - 10.1063/1.4866754

M3 - Conference contribution

AN - SCOPUS:84906491452

SN - 9780735412187

T3 - AIP Conference Proceedings

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BT - 5th Nanoscience and Nanotechnology Symposium, NNS 2013

PB - American Institute of Physics Inc.

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Halim A, Widiyastuti W , Setyawan H , Machmudah S , Nurtono T, Winardi S. Effect of fuel rate and annealing process of LiFePO₄ cathode material for Li-ion batteries synthesized by flame spray pyrolysis method. In 5th Nanoscience and Nanotechnology Symposium, NNS 2013. American Institute of Physics Inc. 2014. p. 173-178. (AIP Conference Proceedings). doi: 10.1063/1.4866754