Revisiting the Role of Polysulfides in Lithium-Sulfur Batteries.
basic_science · Level V
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- Record sourced from PubMed, PMID 29577456.
- Also identified by DOI 10.1002/adma.201705590.
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Abstract
Intermediate polysulfides (S<sub>n</sub> , 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.