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Nanoflower Copper Sulfide as Cathode Materials for Magnesium Ion Batteries
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1.National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;2.State Key Laboratory of Mechanical Transmission for Advance Equipment, Chongqing University, Chongqing 400044, China;3.Chizhou Research Institute of Quality Supervision and Inspection, Chizhou 247100, China

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National Natural Science Foundation of China (52171101); Fundamental Research Funds for the Central Universities (2024IAIS-QN009); National Key R&D Program of China (2021YFB3701100)

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    Abstract:

    CuS-C50, the cathode materials for magnesium ion batteries, was synthesized by adding the surfactant cetyltrimethyl ammonium bromide (CTAB) and adjusting the percentage of ethylene glycol to 50vol% in hydrothermal synthesis process. Results show that CuS-C50 has the complete nanoflower structure. In aluminum chloride-pentamethylcydopentodiene/tetrahydrofuran (APC/THF) electrolyte, the CuS-C50 exhibits a high specific capacity of 331.19 mAh/g when the current density is 50 mA/g and still keeps a specific capacity of 136.92 mAh/g over 50 cycles when the current density is 200 mA/g. Results of morphology characterizations indicate that the complete nanoflower structure can provide more active sites and reduce the barriers for Mg2+ movement, eventually improving the charge and discharge performance of the CuS cathode materials for magnesium ion batteries.

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[He Yuantai, Wu Liang, Shi Yongan, Zhong Zhiyong, Yao Wenhui, Pan Fusheng. Nanoflower Copper Sulfide as Cathode Materials for Magnesium Ion Batteries[J]. Rare Metal Materials and Engineering,2025,54(3):545~553.]
DOI:10.12442/j. issn.1002-185X.20240361

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History
  • Received:June 17,2024
  • Revised:October 14,2024
  • Adopted:October 18,2024
  • Online: March 25,2025
  • Published: March 25,2025