Research Progress of Cathode Composites for Lithium-sulfur Batteries
Lithium-sulfur batteries(LSBs)have the potential to be the next generation of high-performance electrochemical energy storage devices due to their ultra-high energy density,low price,and environmental friendliness.However,lithium-sulfur batteries still face many challenges before their commercial application,such as poor conductivity of sulfur-positive electrodes,shuttle effect of polysulfide,and volume expansion of electrodes during charge and discharge.In this study,we demonstrated the recent research progress of cathode materials for lithium-sulfur batteries,including carbon/sulfur composite materials,carbon/sulfur composite materials loaded with metals,and conductive polymer/sulfur composite materials.The future research of lithium-sulfur batteries has prospected at the end.
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