GITT studies on oxide cathode LiNi1/3Co1/3Mn1/3O2 synthesized by citric acid assisted high-energy ball milling |
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| Authors: | WEIDONG ZHENG MIAO SHUI JIE SHU SHAN GAO DAN XU LIANGLIANG CHEN LIN FENG YUANLONG REN |
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| Affiliation: | 1. The State Key Laboratory Base of Novel Functional Materials and Preparation Science; The Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China
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| Abstract: | Layered LiNi1/3Co1/3Mn1/3O2 was synthesized by a citric acid assisted solid-state method. The structure and electrochemical properties of the LiNi1/3Co1/3Mn1/3O2 materials were investigated. XRD analysis indicated the as-synthesized LiNi1/3Co1/3Mn1/3O2 was with the layered α-NaFeO2 structure. The discharge capacity was about 154 m·Ahg???1 at 0·1 °C rate in the range of 2·0–4·5 V. The kinetics of the LiNi1/3Co1/3Mn1/3O2 materials was investigated by the galvanostatic intermittent titration technique (GITT) method. The lithium ion diffusion coefficient of the LiNi1/3Co1/3Mn1/3O2 was determined in the range of 10???8??? 10???9 cm2· s???1 as a function of voltage of 3·7?4·5 V. |
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