非水系锂空气电池碳基正极材料

Carbon-Based Cathode Materials for Non-Aqueous Lithium-Air Batteries

锂空气电池因其极高的理论能量密度和环境友好等优点,有望成为下一代车用动力电源体系。然而,目前锂空气电池尚存在许多的问题和挑战,就正极而言,空气电极活性低的问题已成为制约锂空气电池技术发展最为重要的问题,因此,开发高性能锂空气电池正极催化剂一直以来都是该领域的重要研究课题。碳基催化剂(正极材料)是目前最具吸引力的锂空气电池正极材料之一,近年来得到了广泛的关注和研究。本文总结和介绍了近年来国内外在多孔碳基材料、石墨烯基材料、掺杂碳材料等碳材料作为锂空气电池正极材料方面的进展,包括本课题组在非水系锂空气电池正极材料方面的研究工作,并对碳基正极材料的发展及其在锂空气电池中的应用前景做了展望。

Given their high theoretical energy density and environment compatibility,lithium-air batteries have been considered as possible alternatives to current vehicles-used Li-ion batteries.Currently lithium-air batteries still have quite a few problems and challenges to overcome,as for cathode electrodes,the development of lithium-air battery technology is hindered by air electrode with improved activity.Thus,the preparation of the high-efficiency cathode materials is still challenging.As one of the most attractive cathode materials for lithium-air batteries,carbon-based catalysts(cathode materials)have received extensive attention and research in recent years.In this paper,based on the comprehensive analysis of our group’s achievements,the recent progress of cathode catalyst for non-aqueous lithium-air batteries is briefly introduced,including porous carbon-based materials,graphene-based materials,and doped carbon materials.In every section,we also attempt to propose the future development of carbon-based cathode materials for the next stage.