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纳米花状CuS作为镁离子电池正极材料
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作者单位:

1.重庆大学 材料科学与工程学院 国家镁合金材料工程技术研究中心,重庆 400044;2.重庆大学 机械传动国家重点实验室,重庆 400044;3.池州市质量监督检验研究院,安徽 池州 247100

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基金项目:

国家自然科学基金项目(面上项目,重点项目,重大项目)


Nanoflower Copper Sulfide as Cathode Materials for Magnesium Ion Batteries
Author:
Affiliation:

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

Fund Project:

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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    摘要:

    在水热合成过程中加入表面活性剂十六烷基三甲基溴化铵(CTAB),调节乙二醇的用量为50vol%,合成了镁离子电池正极材料CuS-C50。结果表明:CuS-C50具有完整的纳米花状结构,在氯化铝-季戊四醇四甲醚/四氢呋喃(APC/THF)电解液中,当电流密度为50 mA/g时,其比容量高达331.19 mAh/g;当电流密度为200 mA/g时,其比容量在50次循环后仍保持136.92 mAh/g。形貌表征结果表明,完整的纳米花状结构可以提供更多的活性位点,减少Mg2+的移动障碍,最终提高镁离子电池CuS正极材料的充放电性能。

    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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何元泰,吴量,史永安,钟志永,姚文辉,潘复生.纳米花状CuS作为镁离子电池正极材料[J].稀有金属材料与工程,2025,54(3):545~553.[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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历史
  • 收稿日期:2024-06-17
  • 最后修改日期:2024-10-14
  • 录用日期:2024-10-18
  • 在线发布日期: 2025-03-25
  • 出版日期: 2025-03-25