Preparation of LiCoMnO4 Assisted by Hydrothermal Approach and its Electrochemical Performance | Science Publications

American Journal of Engineering and Applied Sciences

Qingsong Tong¹  Meilin You¹  Xiuhua Li¹  Ying Ruan¹  Yong Yang¹  Min Lin¹  Xingkang Huang¹ 

关键词: Lithium Manganese Oxide;    5 V Spinel;    Lithium-Ion Battery;    Cathode;   

DOI  :  10.3844/ajeassp.2016.396.405

学科分类：工程和技术（综合）

来源: Science Publications

【 摘 要 】

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.

【 授权许可】

Unknown