常见的固态电解质在锂硫电池中的相关应用

Related Applications of Solid-State Electrolytes in Lithium-Sulfur Batteries

近年来,随着经济的迅猛发展便携式电子产品在全球范围内逐渐普及,锂硫电池由于其具有价格低廉,环境友好,能量密度高的特点,成为了锂离子电池之后的高性能电源。随着人们对锂硫电池的不断深入研究,人们发现其实现商业化仍然困难重重。影响锂硫电池性能的主要是多硫化物的穿梭效应、绝缘性以及在充放电过程中的体积膨胀,同时目前大部分的锂硫电池使用液体电解液导致充放电过程中产生的多硫化物溶解的问题迟迟未能解决,针对这个问题本文重点综述了新型固态电解质的锂硫电池设计以及相关的研究进展,最后总结了未来锂硫电池固态电解质的发展方向。

In recent years, with the rapid development of the economy, portable electronic products are gradually popular around the world. Lithium-sulfur batteries have become the high-performance power source after lithium-ion batteries because of their low price, environment friendly and high energy density. With the continuous in-depth research of lithium sulfur batteries, it is found that it is still difficult to achieve commercialization. The main factors affecting the performance of lithi-um-sulfur batteries are the shuttle effect of polysulfide, insulation and volume expansion in the process of charging and discharging. At the same time, most of the current lithium-sulfur batteries use liquid electrolyte, resulting in the dissolution of polysulfide in the process of charging and dis-charging, which has not been solved. In order to solve this problem, this paper mainly reviews the design and related research progress of lithium-sulfur battery with new solid electrolyte. Finally, the future development direction of solid electrolytes for lithium-sulfur batteries is summarized.