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52. Preparation and electrochemical performance of LiNi0.5Mn0.5O2− x F x (0⩽ x ⩽0.04) cathode material synthesized with hydroxide co-precipitation for lithium ion batteries.

Author

Hu, Chuanyue, Guo, Jun, Wen, Jin, Peng, Yangxi, and Chen, Yan

Subjects
*ELECTROCHEMISTRY, *DOPING agents (Chemistry), *LITHIUM alloys, *PRECIPITATION (Chemistry), *HYDROXIDES, *LITHIUM-ion batteries, *CATHODES
Abstract

Highlights: [•] We have synthesized the layered LiNi0.5Mn0.5O2−xF x (0⩽ x ⩽0.04) by hydroxide co-precipitation method. [•] The structure, morphology and electrochemical performance of LiNi0.5Mn0.5O2 are influenced by F doping effect. [•] The cations mixing of pure LiNi0.5Mn0.5O2 decreases and Li+ diffusion coefficient increases with doping F. [•] The reversible capacity of LiNi0.5Mn0.5O1.96F0.04 is 155.0mAhg−1 after 50 cycles at 0.2 C, 0.5 C and 1.0 C ratios between 2.8 and 4.6V. [ABSTRACT FROM AUTHOR]

Published
2013
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