Lithium/Sulfide All‐Solid‐State Batteries using Sulfide Electrolytes,Advanced Materials

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Lithium/Sulfide All‐Solid‐State Batteries using Sulfide Electrolytes
Advanced Materials ( IF 27.4 ) Pub Date : 2020-08-18 , DOI: 10.1002/adma.202000751
Jinghua Wu _{1,

2} , Sufu Liu ₃ , Fudong Han ₃ , Xiayin Yao _{1,

2} , Chunsheng Wang ₃

Affiliation

All‐solid‐state lithium batteries (ASSLBs) are considered as the next generation electrochemical energy storage devices because of their high safety and energy density, simple packaging, and wide operable temperature range. The critical component in ASSLBs is the solid‐state electrolyte. Among all solid‐state electrolytes, the sulfide electrolytes have the highest ionic conductivity and favorable interface compatibility with sulfur‐based cathodes. The ionic conductivity of sulfide electrolytes is comparable with or even higher than that of the commercial organic liquid electrolytes. However, several critical challenges for sulfide electrolytes still remain to be solved, including their narrow electrochemical stability window, the unstable interface between the electrolyte and the electrodes, as well as lithium dendrite formation in the electrolytes. Herein, the emerging sulfide electrolytes and preparation methods are reviewed. In particular, the required properties of the sulfide electrolytes, such as the electrochemical stabilities of the electrolytes and the compatible electrode/electrolyte interfaces are highlighted. The opportunities for sulfide‐based ASSLBs are also discussed.

中文翻译：

使用硫化物电解质的锂/硫化物全固态电池

全固态锂电池（ASSLB）被认为是下一代电化学储能设备，因为它们具有很高的安全性和能量密度，简单的包装以及宽泛的工作温度范围。ASSLB中的关键成分是固态电解质。在所有固态电解质中，硫化物电解质具有最高的离子电导率和与硫基阴极的良好界面相容性。硫化物电解质的离子电导率与市售有机液体电解质相当或什至更高。但是，硫化物电解质的几个关键挑战仍然有待解决，包括其狭窄的电化学稳定性窗口，电解质与电极之间的不稳定界面，以及电解质中锂枝晶的形成。本文对新兴的硫化物电解质及其制备方法进行了综述。特别地，突出了硫化物电解质的所需性能，例如电解质的电化学稳定性和相容的电极/电解质界面。还讨论了基于硫化物的ASSLB的机会。

更新日期：2020-08-18

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