期刊
SMALL STRUCTURES
卷 3, 期 3, 页码 -出版社
WILEY
DOI: 10.1002/sstr.202100170
关键词
energy storage devices; lithium-sulfur batteries; Raman techniques
资金
- National Natural Science Foundation of China [52003038, 52002053]
- China Postdoctoral Science Foundation [2020M683280]
- Sichuan Science and Technology Program [2019JDRC0070]
- Frontier Science project of Dongguan [2019622101004]
This article summarizes the recent applications of in situ/operando Raman techniques for monitoring the real-time variations in Li-S batteries, aiming to reveal the reaction mechanism and guide the design of strategies for improving battery performances.
Tremendous efforts have been made to fulfill the promises of lithium-sulfur (Li-S) battery as the candidate for next-generation energy storage devices. However, challenges such as capacity degradation and dendrite growth still remain, hampering the commercialization of Li-S batteries. Different from the conventional ion-insertion-based lithium battery, the electrochemical and chemical processes in the cathode of Li-S battery are based on extremely complex conversion reactions. Together with the uncontrollable hostless lithium deposition process on the anode side, the future development of Li-S batteries faces great difficulty and requires deeper understanding of the fundamental mechanism. Herein, the recent applications of in situ/operando Raman techniques for monitoring the real-time variations in Li-S batteries are summarized to reveal the reaction mechanism and guide the design of strategies for improving the battery performances. The design concepts and advantages of in situ/operando Raman studies are highlighted, and the future explorations based on such technique are discussed, aiming to accelerate the development progress of Li-S battery for practical applications.
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