3D HIERARCHICAL NANOCRYSTALLINE CUS CATHODE FOR LITHIUM BATTERIES

Loading...
Thumbnail Image

Date

2021-03-26

Authors

Kalimuldina, Gulnur
Nurpeissova, Arailym
Adylkhanova, Assyl
Issatayev, Nurbolat
Adair, Desmond
Bakenov, Zhumabay

Journal Title

Journal ISSN

Volume Title

Publisher

Materials

Abstract

Conductive and flexible CuS films with unique hierarchical nanocrystalline branches directly grown on three-dimensional (3D) porous Cu foam were fabricated using an easy and facile solution processing method without a binder and conductive agent for the first time. The synthesis procedure is quick and does not require complex routes. The structure and morphology of the as-deposited CuS/Cu films were characterized by X-ray diffraction and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy and transmission electron spectroscopy, respectively. Pure crystalline hexagonal structured CuS without impurities were obtained for the most saturated S solution. Electrochemical testing of CuS/Cu foam electrodes showed a reasonable capacity of 450 mAh·g−1 at 0.1 C and excellent cyclability, which might be attributed to the unique 3D structure of the current collector and hierarchical nanocrystalline branches that provide fast diffusion and a large surface area.

Description

Keywords

Type of access: Open Access, copper sulfide, lithium-ion battery, Cu foam, cathode, binder-free

Citation

Kalimuldina, G., Nurpeissova, A., Adylkhanova, A., Issatayev, N., Adair, D., & Bakenov, Z. (2021). 3D Hierarchical Nanocrystalline CuS Cathode for Lithium Batteries. Materials, 14(7), 1615. https://doi.org/10.3390/ma14071615

Collections