Electrochemical performance characterization of nanostructured LiCoO$_{2}$

POSTER

Abstract

The theoretical capacity of LiCoO$_{2}$ is 300 mAh/g and practical capacity is significantly lower (150 mAh/g) than theoretical value since concentration polarization occurs within the particle before the entire capacity can be utilized. In general, reducing the particle size of electrode materials in lithium-ion batteries to nano domain level overcome this problem. Nanoscale dimensions will provide a short path for the ion motion in the ionic solid electrodes. Therefore, reactions become faster and batteries can be charged and discharged rapidly. In this report we describe the behaviour features of the electrochemical performance of lithium ion battery electrod material (LiCoO$_{2})$ produced by Carbon Combustion Synthesis of Oxide (CCSO). The custom-made pouch-type battery was prepared. The battery was assembled in glove box using separator membrane with special type of polyethylene. The charge-discharge cycles were carried out in the potential range of 2.7-4.2 V using 8-channel battery analyser. The specific capacity had initial value of 200 mAh/g and after 30 cycles the capacity dropped to almost 180 mAh/g retaining over 90 {\%} of initial capacity. This result is confirming that CCSO synthesized ultrafine LiCoO$_{2}$ has stable structure and gives opportunity to extract more than 66 {\%} of theoretical capacitance.

Authors

  • David Garza

    None

  • Karen Martirosyan

    University of Texas at Brownsville, Department of Physics and Astronomy, Brownsville, TX, 78520, University of Texas at Brownsville, The University of Texas at Brownsville, Unversity of Texas at Brownsville

  • Hanu Arava

    University of Houston, University of Texas at Brownsville, None, Univ of Texas, San Antonio, University of Texas at El Paso, Univ of Arizona, Department of Physics and Astronomy and Center for Gravitational Wave Astronomy, University of Texas at Brownsville, Laboratoire des Mat\'eriaux Avanc\'es, Universit\'e Claude Bernard Lyon 1, UTEP, University of Texas, Austin, University of Texas at Austin, Institute for Astronomy, Russian Academy of Sciences, University of Texas at Arlington, The University of Texas at Arlington, MIT, U. Mass. Dartmouth, Texas A{\&}M University, Texas Christian University, Laboratoire des Mat\'erieux Avanc\'es B\^atiment Virgo, Ion Beam Materials Laboratory, Los Alamos National Laboratory, Texas A\&M University, Accelerator Research Laboratory, University of Florida, The Ohio State University, Yale University, University of Guelph, Canada, Armagh Observatory, NASA-Ames, NASA-Goddard, Texas A\&M University-Commerce, Texas A\&M University, Hanyang University, Texas A\&M Univ, Department of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran, Physics Department, Texas State University at San Marcos

  • Hanu Arava

    University of Houston, University of Texas at Brownsville, None, Univ of Texas, San Antonio, University of Texas at El Paso, Univ of Arizona, Department of Physics and Astronomy and Center for Gravitational Wave Astronomy, University of Texas at Brownsville, Laboratoire des Mat\'eriaux Avanc\'es, Universit\'e Claude Bernard Lyon 1, UTEP, University of Texas, Austin, University of Texas at Austin, Institute for Astronomy, Russian Academy of Sciences, University of Texas at Arlington, The University of Texas at Arlington, MIT, U. Mass. Dartmouth, Texas A{\&}M University, Texas Christian University, Laboratoire des Mat\'erieux Avanc\'es B\^atiment Virgo, Ion Beam Materials Laboratory, Los Alamos National Laboratory, Texas A\&M University, Accelerator Research Laboratory, University of Florida, The Ohio State University, Yale University, University of Guelph, Canada, Armagh Observatory, NASA-Ames, NASA-Goddard, Texas A\&M University-Commerce, Texas A\&M University, Hanyang University, Texas A\&M Univ, Department of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran, Physics Department, Texas State University at San Marcos