Synthesis and electrochemical studies of spinel phase LiMn{sub 2}O{sub 4} cathode materials prepared by the Pechini process

Liu, W; Farrington, G C; Chaput, F; Dunn, B

doi:10.1149/1.1836552

Title: Synthesis and electrochemical studies of spinel phase LiMn{sub 2}O{sub 4} cathode materials prepared by the Pechini process

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Abstract

LiMn{sub 2}O{sub 4}-based spinels are of great interest as positive electrode materials for lithium-ion batteries. The authors describe here what is believed to be the first synthesis of these materials using the Pechini process, a low temperature synthetic method that often yields inorganic oxides of excellent phase purity and well-controlled stoichiometry. Using this process, it has been possible to synthesize phase-pure crystalline spinel LiMn{sub 2}O{sub 4} by calcining the appropriate polymeric precursors in air at 250 C for several hours. The influence of different firing temperatures and the effect of substituting a small amount of Mn with Ni have also been explored. Electrochemical studies show that the Pechini-synthesized materials appear to offer not only high quality performance but also significant analytical advantages which allows one to understand the structural mechanism of Li intercalation.

Authors:

Liu, W; Farrington, G C ^[1]; Chaput, F; Dunn, B ^[2]

Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Materials Science and Engineering
Univ. of California, Los Angeles, CA (United States). Dept. of Materials Science and Engineering

Publication Date:: Fri Mar 01 00:00:00 EST 1996

Sponsoring Org.:: USDOE

OSTI Identifier:: 220868

Resource Type:: Journal Article

Journal Name:: Journal of the Electrochemical Society

Additional Journal Information:: Journal Volume: 143; Journal Issue: 3; Other Information: PBD: Mar 1996

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; 36 MATERIALS SCIENCE; 40 CHEMISTRY; ELECTRIC BATTERIES; CATHODES; LITHIUM OXIDES; CHEMICAL PREPARATION; ELECTROCHEMISTRY; MANGANESE OXIDES; CLATHRATES; HEAT TREATMENTS

Citation Formats


                    Liu, W, Farrington, G C, Chaput, F, and Dunn, B. Synthesis and electrochemical studies of spinel phase LiMn{sub 2}O{sub 4} cathode materials prepared by the Pechini process.  United States: N. p., 1996. 
        Web.  doi:10.1149/1.1836552.

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                    Liu, W, Farrington, G C, Chaput, F, & Dunn, B. Synthesis and electrochemical studies of spinel phase LiMn{sub 2}O{sub 4} cathode materials prepared by the Pechini process.  United States.  https://doi.org/10.1149/1.1836552

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                    Liu, W, Farrington, G C, Chaput, F, and Dunn, B. 1996.  
        "Synthesis and electrochemical studies of spinel phase LiMn{sub 2}O{sub 4} cathode materials prepared by the Pechini process".  United States.  https://doi.org/10.1149/1.1836552.

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@article{osti_220868,

  title        = {Synthesis and electrochemical studies of spinel phase LiMn{sub 2}O{sub 4} cathode materials prepared by the Pechini process},

  author       = {Liu, W and Farrington, G C and Chaput, F and Dunn, B},

  abstractNote = {LiMn{sub 2}O{sub 4}-based spinels are of great interest as positive electrode materials for lithium-ion batteries. The authors describe here what is believed to be the first synthesis of these materials using the Pechini process, a low temperature synthetic method that often yields inorganic oxides of excellent phase purity and well-controlled stoichiometry. Using this process, it has been possible to synthesize phase-pure crystalline spinel LiMn{sub 2}O{sub 4} by calcining the appropriate polymeric precursors in air at 250 C for several hours. The influence of different firing temperatures and the effect of substituting a small amount of Mn with Ni have also been explored. Electrochemical studies show that the Pechini-synthesized materials appear to offer not only high quality performance but also significant analytical advantages which allows one to understand the structural mechanism of Li intercalation.},

  doi          = {10.1149/1.1836552},

  url          = {https://www.osti.gov/biblio/220868},
  journal      = {Journal of the Electrochemical Society},
number       = 3,

  volume       = 143,

  place        = {United States},

  year         = {Fri Mar 01 00:00:00 EST 1996},

  month        = {Fri Mar 01 00:00:00 EST 1996}

}

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