有色金属材料与工程2023，Vol.44Issue(6)：61-70,10.DOI:10.13258/j.cnki.nmme.2023.06.007
高载量钴离子掺杂MnO2用于高性能锌离子混合电容器
High-loading cobalt ion doped MnO2 for high-performance zinc ion hybrid capacitors
摘要
Abstract
Cobalt ion doped MnO2 was prepared on flexible carbon cloth by constant-current electrodeposition with a loading of 13.8 mg/cm2.The effect of cobalt ion doping on the electrochemical properties of MnO2 was investigated by characterizing the structure and properties of the material using an X-ray diffractometer(XRD),scanning electron microscope(SEM),X-ray photoelectron spectrometer(XPS)and electrochemical workstation.The results showed that when the electrode was assembled with activated carbon to form liquid zinc ion hybrid capacitors(Zn-HCs),the area-specific capacitance of Zn-HCs was as high as 5 883.0 mF/cm2 and the area energy density was 3 154.9 μWh/cm2 at a current density of 2 mA/cm2,comparable to the energy level of zinc ion batteries.When the electrodes were assembled with activated carbon to form quasi-solid flexible Zn-HCs,the Zn-HCs exhibited good energy density(1 351.1 μWh/cm2 at a power density of 1 mW/cm2)and excellent mechanical flexibility,which makes it promising for the next generation of flexible wearable devices.关键词
锌离子混合电容器/高载量/钴离子掺杂MnO2/电沉积/柔性Key words
zinc ion hybrid capacitors/high load capacity/cobalt ion doped MnO2/electrodeposition/flexibility分类
化学工程引用本文复制引用
姚远,徐子明,刘恒翰,吴凤楠,李生娟..高载量钴离子掺杂MnO2用于高性能锌离子混合电容器[J].有色金属材料与工程,2023,44(6):61-70,10.基金项目
上海市科学技术委员会地方高校能力建设项目(20060502200) （20060502200）
