Cathode Material Li [Li0.2 Mn0.44Ni0.18Co0.18]O2 Synthesized by Molten Salt Method

Guang Xin Fan; Hui Lian Li; Shu Pu Dai; Chuan Xiang Zhang; Xue Mao Guan; Zhao Rong Chang

doi:10.4028/www.scientific.net/AMR.690-693.981

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 690-693Cathode Material Li [Li0.2 Mn0.44Ni0.18Co0.18]O2...

Cathode Material Li [Li_0.2 Mn_0.44Ni_0.18Co_0.18]O₂ Synthesized by Molten Salt Method

Abstract:

In this paper, LiOH·H₂O and Li₂CO₃, which were widely used in industry and (Mn_0.533Co_0.233Ni_0.233) (OH)₂ prepared by ourselves selected as starting materials, series materials of lithium-rich layered material Li [Li_0.2Mn_0.44Ni_0.18Co_0.18]O₂ were obtained by a molten salt method. Their structures and properties of the materials were investigated by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) and constant current charge/discharge methods. The effects of different LiOH and Li₂CO₃molar ratios on the Li [Li_0.2Mn_0.44Ni_0.18Co_0.18]O₂ structures and properties were characterized. The results of the experiments indicate that The structures of the material such as crystal structure, the specific area, particle size distribution, tap densities were controlled by adjusting the proportion of the two lithium sources. Forthermore , when the molar ratio of LiOH and Li₂CO₃ was 3:7, the maximum discharge capacity (214.77 mAhg^-1 ) of the cathode was obtained.