过渡金属酞菁配合物在高性能锂硫电池的应用  

Application of Transition Metal Phthalocyanine Complexes in High-performance Lithium-sulfur Batteries

作　　者：杨晓霞 胡成 YANG Xiaoxia;HU Cheng(School of Materials Science and Engineering,Shandong University,Jinan 250061,China)

机构地区：[1]山东大学材料科学与工程学院,山东济南250061

出　　处：《山东电力技术》2020年第12期6-10,共5页Shandong Electric Power

基　　金：国家自然科学基金项目(22005178);山东省自然科学基金项目(ZR2019QEM001)。

摘　　要：锂硫电池是一种具有较大发展潜力的新体系二次电池,理论能量密度远超过传统的锂离子电池。硫是一种环境友好的元素,储量丰富,价格低廉。将高催化活性的酞菁镍负载于导电碳基体获得一种新型锂硫电池正极材料,通过对比研究,验证了材料在比容量、倍率性能和循环稳定性等关键电化学性能上的提升,实现了1 334 mAh/g的高容量和高达80%的容量保持率。Lithium sulfur battery is a new secondary battery with great development potential,whose theoretical energy density is much higher than that of traditional lithium-ion battery.Sulfur is a kind of environmental friendly element with abundant reserves and low cost.In this paper,nickel phthalocyanine with high catalytic activity was loaded on conductive carbon matrix to obtain a new cathode material for lithium sulfur battery.The improvement of the key electrochemical properties including specific capacity,high rate capability and long-term cycling stability is verified by comparison,which fulfills an excellent capacity of 1334 mAh/g and a stable capacity retention of 80%.

关 键 词：锂硫电池 过渡金属酞菁 催化 

分 类 号：TM912.9[电气工程—电力电子与电力传动]