摘要
锂硫电池由于具有较高的理论能量密度被认为是未来最有可能取代锂离子电池的新一代电池,但锂硫电池中一些如多硫化物的“穿梭效应”、单质硫导电性差等问题,限制了锂硫电池的实际应用。过渡金属碳/氮化物MXene是近年来新兴的一类二维材料,其优异的导电性以及丰富的表面基团可有效应对锂硫电池的缺陷,被广泛应用于锂硫电池领域。综述了近年来二维MXene材料、三维MXene基复合材料和改性MXene基复合材料在锂硫电池正极中的应用,同时对MXene及其复合材料在锂硫电池正极中的未来发展提出了展望。
Lithium-sulfur batteries are considered to be the most likely replacement of lithium-ion batteries in the future due to their higher theoretical energy density.However,some inherent problems in lithium-sulfur batteries,such as the“shuttle effect”of polysulfides and poor electrical conductivity of elemental sulfur,limit the practical application of lithium-sulfur batteries.Transition metal carbon/nitride MXene is a kind of two-dimensional materials emerging in recent years.Its excellent conductivity and abundant surface groups can effectively cope with the defects of lithium-sulfur batteries,so it is widely used in the field of lithium-sulfur batteries.In this paper,it reviews the applications of two-dimensional MXene materials,three-dimensional MXene matrix composites and modified MXene matrix composites in the cathode of lithium-sulfur batteries in recent years,and also summarizes and prospects the future development of MXene and its composites in the cathode of lithium-sulfur batteries.
作者
杨洋
郭东华
李苗苗
孙根班
黄现强
李会峰
YANG Yang;GUO Donghua;LI Miaomiao;SUN Genban;HUANG Xianqiang;LI Huifeng(Beijing Key Laboratory of Energy Conversion and Storage Materials,College of Chemistry,Beijing Normal University,Beijing 100875,China;Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology,School of Chemistry&Chemical Engineering,Liaocheng University,Liaocheng 252059,China)
出处
《聊城大学学报（自然科学版）》
2023年第1期40-51,共12页
Journal of Liaocheng University:Natural Science Edition
基金
国家自然科学基金项目(21871028,21771024)资助。
关键词
锂硫电池
MXene
复合材料
lithium-sulfur batteries
MXene
composite material
