关键词: Li-S battery, Shuttle efect, Electrolyte additive, Solid-state electrolyte

Abstract: Lithium sulfur batteries (LSBs) are among the most promising candidates for next-generation high-energy lithium batteries. However, the polysulfde shuttle efect remains a key obstacle in the practical application of LSBs. Liquid electrolytes, which transport lithium ions between electrodes, play a vital role in battery performances due to the dissolution of polysulfdes, and recently, researchers have shown that LSB performances can be greatly improved through the confnement of polysulfdes within cathodes. Inspired by this, growing eforts are been devoted to the suppression of the shuttle efect in LSBs by using liquid electrolytes, such as controlling the solubility of solvents and intercepting shuttle reactions. In this review, the design of applicable electrolytes and their functionality on the shuttle efect will be outlined and discussed. In addition, perspectives regarding the future research of LSBs will be presented.

Full-text：https://link.springer.com/article/10.1007/s41918-018-0021-0

Key words: Li-S battery, Shuttle efect, Electrolyte additive, Solid-state electrolyte