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Li-S battery is one of the most promising candidates for next-generation energy storage technology.However,the rapid capacity fading and low-energy-density limit its large-scale applications.Scholars invest a lot of effort to introduce new materials.A neglected problem is that reasonable structure is as important as new material.In this review,four kinds of cathode structures were analyzed through morphology and electrochemical properties.The relationship between structures and properties was elaborated through reaction mechanism.The advantages and disadvantages of each structure were discussed.We hope the summary and discussion provide inspiration for structure design in Li-S battery cathode materials.