电镀制备金属铋负极材料的性能研究
Study on Properties of Bismuth Negative Electrode Material Prepared by Electroplating
DOI: 10.12677/MS.2022.124038, PDF,    国家自然科学基金支持
作者: 郑博文, 朱基亮：四川大学材料科学与工程学院，四川 成都
关键词: 锂离子电池；金属铋；涂敷；负极材料；导电性；Lithium Ion Battery； Bi； Coating； Negative Electrode Material； Conductivity
摘要: 采用电镀法制备出了性能优良的单质铋锂离子电池负极材料，在电化学工作站上利用三电极体系对材料进行活化，并利用较易分离的铜箔作为基底沉积单质铋，通过对铋粉末的研磨、涂敷。实现了单质铋电极材料充放电性能和循环寿命的提升。利用发射场电子显微镜，X射线衍射仪对材料结构和组成进行了表征。在电化学工作站上利用循环伏安和电化学阻抗测试在三电极体系下测试了材料的电化学性能。在蓝电测试系统上对材料进行了恒流充放电测试。结果显示活化后的材料比容量得到一定提升。通过研磨和涂敷过程的单质铋在比容量和循环性能上都有较大提升。
Abstract: The cathode material of bismuth for lithium ion battery with excellent performance was prepared by a simple electroplating method. The material was activated by three-electrode system on the electrochemical workstation, and the bismuth was deposited by using copper foil which is easy to separate as the base. The bismuth powder was ground and coated. The charge discharge performance and cycle life of elemental bismuth electrode material are improved. The structure and composition of the material were characterized by an emission field electron microscope and X-ray diffractometer. The electrochemical properties of the materials were tested in the three- electrode system by cyclic voltammetry and electrochemical impedance test on the electrochemical work-station. The constant current charge discharge test was carried out on the blue electric test system. The results show that the specific capacity of the activated material is improved to a certain extent. The specific capacity and cycle performance of bismuth have been greatly improved by grinding and coating.
文章引用：郑博文, 朱基亮. 电镀制备金属铋负极材料的性能研究[J]. 材料科学, 2022, 12(4): 366-374. https://doi.org/10.12677/MS.2022.124038

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