Research Article Open Access

Preparation of LiCoMnO4 Assisted by Hydrothermal Approach and its Electrochemical Performance

Meilin You1, Xingkang Huang1, Min Lin1, Qingsong Tong1, Xiuhua Li1, Ying Ruan1 and Yong Yang2
  • 1 Fujian Normal University, China
  • 2 Xiamen University, China
American Journal of Engineering and Applied Sciences
Volume 9 No. 2, 2016, 396-405

DOI: https://doi.org/10.3844/ajeassp.2016.396.405

Submitted On: 26 September 2015 Published On: 23 May 2016

How to Cite: You, M., Huang, X., Lin, M., Tong, Q., Li, X., Ruan, Y. & Yang, Y. (2016). Preparation of LiCoMnO4 Assisted by Hydrothermal Approach and its Electrochemical Performance. American Journal of Engineering and Applied Sciences, 9(2), 396-405. https://doi.org/10.3844/ajeassp.2016.396.405

Abstract

LiCoMnO4 materials have been synthesized via a hydrothermal approach followed by a post-annealing process. Pure phase of LiCoMnO4 is unable to form under hydrothermal conditions; however, high quality of pure LiCoMnO4 was achieved after annealing the hydrothermal products. The concentration of LiOH and the post-annealing temperature are the crucial factors to form LiCoMnO4. Without post-annealing process, the highest contents of LiCoMnO4 in the hydrothermal products are less than 50% (e.g., in the presence of 1.2-1.35 M LiOH); in contrast, in the cases of 1.35-1.4 M LiOH, almost pure phase of LiCoMnO4 has been achieved successfully after annealing the hydrothermal precursors at 750°C. The as-prepared sample in the presence of 1.35 M LiOH, after annealed at 750°C, exhibits a capacity of 91.6 mAh g-1.

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Keywords

  • Lithium Manganese Oxide
  • 5 V Spinel
  • Lithium-Ion Battery
  • Cathode