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Ming Yao Cheng
Department of Chemical Engineering, National Taiwan University of Science and Technology
Chemical Engineering, Chemistry & Bioengineering Chemistry

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Improvement of Cycling Performance of Na2/3Co2/3Mn1/3O2 Cathode by PEDOT/PSS Surface Coating for Na Ion Batteries Yatim Lailun Ni’mah; Ju Hsiang Cheng; Ming Yao Cheng; Wei Nien Su; Bing Joe Hwang
Indonesian Journal of Chemistry Vol 18, No 1 (2018)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.623 KB) | DOI: 10.22146/ijc.24893

Abstract

The surface-modified Na2/3Co2/3Mn1/3O2 is coated with a conductive Poly (3,4-Ethylene dioxy thiophene)-poly (styrene sulfonate) (PEDOT/PSS) polymer, and their resulting electrochemical properties were investigated as Na-ion battery cathode. The surface-modified Na2/3Co2/3Mn1/3O2 cathode material exhibits a high discharge capacity and good rate capability due to enhanced electron transport by surface PEDOT/PSS. The presence of PEDOT/PSS surface layer suppresses the growth of a resistive layer, while the dissolution of transition metals of the active cathode materials is inhibited as well. The resulting surface-modified Na2/3Co2/3Mn1/3O2 shows superior cycling performance, which is much stable than the pristine one as being the Na-ion battery cathode.
Co-Authors Bing Joe Hwang Ju Hsiang Cheng Wei Nien Su Yatim Lailun Ni’mah