Solid-state electrolytes (SSEs) have been put forward as excellent alternatives to liquid electrolytes owing to their good thermal stability, non-flammability, and good compatibility with lithium anodes. Their air stability is one of the most important factors towards large-scale synthesis and applications. Unfortunately, few reviews focus on outlining the effects of air stability buried in SSEs. Herein, to replenish this deficiency, we summarize the principles of the atmospheric instability, including the moisture-induced emission of H₂S, H⁺/Li⁺ ionic exchange, surface oxidation and expansion of contaminants. Current solutions developed to improve the atmospheric stability are also sorted and introduced with respect to doping, surface modification, and applying other physical approaches. Finally, we also introduce possible approaches to improve the air stability of SSEs based on our insights into the air stability of SSEs.

中文翻译：

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固态电解质中的基本空气稳定性：原理和解决方案

固态电解质（SSE）由于其良好的热稳定性、不易燃性以及与锂负极的良好兼容性而被提出作为液态电解质的绝佳替代品。它们的空气稳定性是大规模合成和应用的最重要因素之一。不幸的是，很少有评论专注于概述隐藏在 SSE 中的空气稳定性的影响。在此，为了弥补这一不足，我们总结了大气不稳定性的原理，包括湿气引起的 H ₂ S排放、H ⁺ /Li ⁺离子交换、表面氧化和污染物的膨胀。还针对掺杂、表面改性和应用其他物理方法对当前为提高大气稳定性而开发的解决方案进行了分类和介绍。最后，我们还根据我们对 SSE 空气稳定性的见解，介绍了提高 SSE 空气稳定性的可能方法。