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Revisiting the Role of Polysulfides in Lithium-Sulfur Batteries
Gaoran Li1,2, Shun Wang1, Yining Zhang2
1Nanomaterials and Chemistry Key Laboratory, Wenzhou University, Wenzhou, 325027, P. R. China.
Abstract:
Intermediate polysulfides (Sn , where n = 2-8) play a critical role in both mechanistic understanding and performance improvement of lithium-sulfur batteries. The rational management of polysulfides is of profound significance for high-efficiency sulfur electrochemistry. Here, the key roles of polysulfides are discussed, with regard to their status, behavior, and their correspondingimpact on the lithium-sulfur system. Two schools of thoughts for polysulfide management are proposed, their advantages and disadvantages are compared, and future developments are discussed.
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