Abstract

Electrochemical supercapacitors are prominent power sources of today, which store and release energy by reversible adsorption and desorption of ions at the interfaces between electrode materials and electrolytes. Spinel-based nano-structured materials are assumed to be promising candidates of electrode materials for supercapacitors, because of electrical conductivity, electroactive sites, thermal stability, flexibility, specific capacitance, and cycling stability. Spinel binary transition metal oxides, such as, NiFe₂O₄, ZnCo₂O₄, MgCo₂O₄, CuCo₂O₄, NiCo₂O₄, ZnMn₂O₄, and CoMn₂O₄ give a wide extend of choices for supercapacitor. In this work, we explained different spinel structured electrode materials such as Mn-, Fe-, Co-based ones and their energy storage performances for designing supercapacitors.

摘要

电化学超级电容器是当今重要的电源，它通过在电极材料和电解质之间的界面上对离子进行可逆吸附和解吸来储存和释放能量。由于导电性、电活性位点、热稳定性、柔韧性、比电容和循环稳定性，基于尖晶石的纳米结构材料被认为是超级电容器电极材料的有前途的候选者。尖晶石二元过渡金属氧化物，例如 NiFe ₂ O ₄、ZnCo ₂ O ₄、MgCo 2 _O 4 _{、 CuCo 2} O ₄、NiCo ₂ O ₄、ZnMn ₂O ₄和CoMn ₂ O ₄为超级电容器提供了广泛的选择。在这项工作中，我们解释了不同的尖晶石结构电极材料，如锰基、铁基、钴基材料及其用于设计超级电容器的储能性能。