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| Application of Needle-like NiCo2O4@Carbon Cloth Composites in Lithium-Sulfur Batteries |
| Author Name | Affiliation | E-mail | | YANG Xiao-Lan | School of Chemical Engineering and Light Industry, Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou 510006, China | | | WU Zhong-Hui | School of Chemical Engineering and Light Industry, Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou 510006, China | | | ZHANG Ya-Jun | School of Chemical Engineering and Light Industry, Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou 510006, China | | | HE Xin-Jian | School of Chemical Engineering and Light Industry, Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou 510006, China | | | JIA Jin-Zhu | School of Chemical Engineering and Light Industry, Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou 510006, China | | | YANG Xiong-Zhi | School of Chemical Engineering and Light Industry, Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou 510006, China | | | ZHOU Jun-Li | School of Chemical Engineering and Light Industry, Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education, Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou 510006, China | zhoujlees@gdut.edu.cn |
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| Abstract: Using carbon cloth (CC) as a flexible substrate, needle-like network structure NiCo2O4 was grown on the surface of CC by hydrothermal method, and then NiCo2O4@CC composites were prepared and used for lithium-sulfur battery. NiCo2O4 grows vertically on the surface of carbon fiber to form a three-dimensional network of nano-needle clusters, which provides more space for sulfur storage and effectively alleviates the volume expansion of sulfur electrode. Through adsorption experiments, it is proved that NiCo2O4@CC can effectively adsorb polysulfide, thus inhibiting the shuttle effect of polysulfide. Compared with CC/S (933 mAh·g-1), NiCo2O4@CC/S composite had better battery performance. The initial discharge specific capacity was as high as 1 467 mAh·g-1 at 0.1C, and the initial discharge specific capacity was 1 098 mAh·g-1 at 0.2C, the discharge specific capacity can remain 879 mAh·g-1 even after 200 cycles, and the average decay rate of each cycle was 0.09%, showing good cycle performance. |
| Keywords: lithium-sulfur batteries carbon cloth NiCo2O4 adsorption |
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| YANG Xiao-Lan,WU Zhong-Hui,ZHANG Ya-Jun,HE Xin-Jian,JIA Jin-Zhu,YANG Xiong-Zhi,ZHOU Jun-Li.Application of Needle-like NiCo2O4@Carbon Cloth Composites in Lithium-Sulfur Batteries[J].Chinese Journal of Inorganic Chemistry,2021,37(11):1943-1949. |
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