Electrochemical Performance of Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;-Coated LiNi&lt;sub&gt;1/3&lt;/sub&gt;Co&lt;sub&gt;1/3&lt;/sub&gt;Mn&lt;sub&gt;1/3&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; Cathode Materials for Li-Ion Batteries

Jian Gang Li; Xiangming He; Ru Zhao; Chun Rong Wan; Shi Chao Zhang

doi:10.4028/www.scientific.net/kem.336-338.459

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Electrochemical Performance of Al2O3-Coated LiNi1/3Co1/3Mn1/3O2 Cathode Materials for Li-Ion Batteries

Jian Gang Li Xiangming He Ru Zhao Chun Rong Wan Shi Chao Zhang

Year: 2007 Journal: Key engineering materials Vol: 336-338 Pages: 459-462 Publisher: Trans Tech Publications

DOI: 10.4028/www.scientific.net/kem.336-338.459

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Abstract

Al2O3-coated LiNi1/3Co1/3Mn1/3O2 powders with excellent electrochemical performance have been synthesized. The electrochemical performance of Al2O3-coated LiNi1/3Co1/3Mn1/3O2 electrodes has been studied as function of the level of Al2O3 coating. Coated LiNi1/3Co1/3Mn1/3O2 samples shows higher discharge capacity and better capacity retention than the base one. Among the coated samples, 1.0mol% coated sample exhibits the best electrical performance. It presents an initial discharge capacity of 174.5 mAh g-1 over 2.5~4.4V, and 84.7% capacity retention after 30 cycles over 2.5~4.6V.

Keywords:

Electrochemistry Materials science Coating Electrode Base (topology) Analytical Chemistry (journal) Chemical engineering Metallurgy Nanotechnology Chemistry Chromatography Mathematics Physical chemistry

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Advancements in Battery Materials

Physical Sciences → Engineering → Electrical and Electronic Engineering

Extraction and Separation Processes

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Advanced Battery Technologies Research

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