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- Shin, Tae Joo
- Synchrotron Radiation Research Lab.
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Effects of Self-Catalyzed Polyaniline Coating on the Electrochemical Performance of 0.4Li(2)MnO(3) center dot 0.6LiMn(0.33)Ni(0.33)Co(0.33)O(2) Electrodes
- Author(s)
- Lee, Kug-Seung, Gim, Jihyeon, Chirawatkul, Prae, Kim, Jaekook, Shin, Tae Joo, Ahn, Docheon
- Issued Date
- 2015-01
- Fulltext
- http://eel.ecsdl.org/content/4/1/A15
- Citation
- ECS ELECTROCHEMISTRY LETTERS, v.4, no.1, pp.A15 - A17
- Abstract
- Self-catalyzed polyaniline (PANI)-coating on the surface of 0.4Li(2)MnO(3) center dot 0.6LiMn(0.33)Ni(0.33)Co(0.33)O(2) powders was prepared by chemical oxidative polymerization with the aid of the Mn4+ ions of the pristine material as oxidants. Discharge capacity of the PANI-coated electrode was 98 mAhg(-1) at 2.4 C-rate, while the uncoated sample showed 68 mAhg(-1). Discharge capacity was retained at 94% by the 40th cycle, while that of uncoated electrode was retained at 85%. The improvement of electrochemical performances is attributed to the PANI-coating that acts as a protective layer and suppresses the formation of solid electrolyte interphase layer by retarding the rate of electrolyte decomposition. (C) 2014 The Electrochemical Society. All rights reserved
- Publisher
- ELECTROCHEMICAL SOC
- ISSN
- 2162-8726
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