超级电容器PANI/MnO_(2)复合材料电极的制备及性能研究  

Study on Preparation and Performance of PANI/MnO_(2)Composite Electrode for Supercapacitor

作　　者：张燕 王继芬[1,2] ZHANG Yan;WANG Jifen(School of Resources and Environmental Engineering,Shanghai Polytechnic University,Shanghai 201209,China;Shanghai Engineering Research Center of Advanced Thermal Functional Materials,Shanghai 201209,China)

机构地区：[1]上海第二工业大学资源与环境工程学院,上海201209 [2]上海先进热功能材料工程技术研究中心,上海201209

出　　处：《上海第二工业大学学报》2022年第3期218-224,共7页Journal of Shanghai Polytechnic University

基　　金：国家自然科学基金资助项目(51776116);国家自然科学基金重大项目(51590902);上海市青年科技英才扬帆计划资助(21YF1414400);上海第二工业大学校基金项目(EGD21QD18)资助。

摘　　要：通过回收废旧三元锂电池正极材料中的Mn制备超级电容器PANI/MnO_(2)复合电极材料,实现废旧材料的资源化,符合绿色化学的发展要求。主要探索了两种不同氧化剂(KMnO_(4)和APS)对PANI/MnO_(2)复合材料形貌和电化学性能的影响,由实验结果可知,在KMnO_(4)氧化条件下制备的具有空隙的针棒状复合材料PANI/MnO_(2)-1的电化学性能明显略优。PANI/MnO_(2)-1作为电极时的比电容可达2183F/g,充放电100圈后比电容仍具有初始值的60.81%,循环稳定性较好,是一种性质优良的超级电容器电极材料。结果表明实验设计的废旧三元锂电池回收再利用方法切实可行,为超级电容器PANI/MnO_(2)复合材料电极的制备提供了新的研究思路。The PANI/MnO_(2)composite electrode for supercapacitor was prepared by recycling Mn in the cathode material of the waste ternary lithium battery,which realized the recycling of waste materials and met the development requirements of green chemistry.The effects of two different oxidants(KMnO_(4) and APS)were explored on the morphology and electrochemical properties of PANI/MnO_(2)composites.The experimental results reveal that the needle-shaped composite material PANI/MnO_(2)-1 with voids,which prepared under the oxidation conditions of KMnO_(4),possesses better electrochemical performance.The PANI/MnO_(2)-1 is an excellent property electrode materials for supercapacitors,whose cycle stability is better and specific capacitance can reach 2183 F/g,while still has 60.81%of the initial value after 100 cycles of charge and discharge.The research results show that the experiment of recycling method of waste ternary lithium battery is feasible and provide a new research idea for the preparation of supercapacitor with PANI/MnO_(2)composite electrode.

关 键 词：资源化 超级电容器 二氧化锰 聚苯胺 制备 电化学性能 

分 类 号：O646[理学—物理化学]