双层壳结构 Co$_{\bf 2.7}\rm {\bf Cu_{0.3}O_{4}}$ 立方体复合材料的制备及锂电性能

doi:10.12066/j.issn.1007-2861.2113

Abstract

Abstract:

Co/Cu-BTC solid cube precursors were synthesised by solvent thermal methods, and double-layer Co$_{2.7}$Cu$_{0.3}$O$_{4}$ cube composites were obtained by calcining in air using Co/Cu-BTC as a self-sacrificing template. The phase morphologies of the materials were analysed by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscope (TEM). Following this, the prepared double-layer Co$_{2.7}$Cu$_{0.3}$O$_{4}$ cube composites were employed as anode materials for lithium ion batteries, which exhibited excellent cycling stability. This can be attributed to its unique double layer cube structure, which can effectively shorten the electron transfer path and alleviate the volume expansion in the process of charging and discharging, thus maintaining the stability of the structure.

Key words: double layer, cubes, lithium ion battery, anode material

CLC Number:

TQ152

ZHAO Pandeng, HE Yongchao, HE Xinhua, FENG Xiaoxiao, PU Xianjuan, CHENG Lingli, JIAO Zheng. Synthesis of double layer Co$_{\bf 2.7}$Cu$_{\bf 0.3}$O$_{\bf 4 }$ cubes composites with enhanced lithium ion battery performance[J]. Journal of Shanghai University（Natural Science Edition）, 2021, 27(1): 117-124.

Figures/Tables 6

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References 24

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Synthesis of double layer Co$_{\bf 2.7}$Cu$_{\bf 0.3}$O$_{\bf 4 }$ cubes composites with enhanced lithium ion battery performance

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