张亮教授课题组和李彦光教授课题组合作在Advanced Energy Materials上发表论文

发布时间:2019-03-25访问量:10设置

题目:

Deciphering the Reaction Mechanism of LithiumSulfur Batteries by In Situ/Operando Synchrotron-Based Characterization Techniques

作者:

Yingying Yan1, Chen Cheng1, Liang Zhang1,*, Yanguang   Li1,*, and Jun Lu2

单位:

1Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China

2Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 Cass Ave, Lemont, IL 60439, USA

摘要:

Lithium–sulfur (Li–S) batteries have received extensive attention as one of the most promising next-generation energy storage systems, mainly because of their high theoretical energy density and low cost. However, the practical application of Li–S batteries has been hindered by technical obstacles arising from the polysulfide shuttle effect and poor electronic conductivity of sulfur and discharge products. Therefore, it is of profound significance for understanding the underlying reaction mechanism of Li–S batteries to circumvent these problems and improve the overall battery performance. Advanced characterization techniques, especially synchrotron-based X-ray techniques, have been widely applied to the mechanistic understanding of Li–S batteries. Specifically, in situ/operando synchrotron-based techniques allows chemical and structural evolution to be directly observed under real operation conditions. Here, recent progress in the understanding of the operating principles of Li–S batteries based on in  situ/operando synchrotron based techniques, including X-ray absorption spectroscopy, X-ray diffraction, and X-ray microscopy, is reviewed. The aim of this progress report is to provide a comprehensive treatise on in situ/operando synchrotron-based techniques for mechanism understanding of Li–S batteries, and thereby provide guidance for optimizing their overall electrochemical performances.

影响因子:

21.875

分区情况:

一区

链接:

https://onlinelibrary.wiley.com/doi/abs/10.1002/aenm.201900148


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