Insight into Dendrites Issue in All Solid-State Batteries with Inorganic Electrolyte: Mechanism, Detection and Suppression Strategies,Small

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Insight into Dendrites Issue in All Solid-State Batteries with Inorganic Electrolyte: Mechanism, Detection and Suppression Strategies
Small ( IF 13.0 ) Pub Date : 2023-12-05 , DOI: 10.1002/smll.202308297
Tianrui Sun _{1,

2} , Qi Liang ₃ , Sizhe Wang _{2,

3} , Jiaxuan Liao _{1,

2}

Affiliation

All solid-state batteries (ASSBs) are regarded as one of the promising next-generation energy storage devices due to their expected high energy density and capacity. However, failures due to unrestricted growth of lithium dendrites (LDs) have been a critical problem. Moreover, the understanding of dendrite growth inside solid-state electrolytes is limited. Since the dendrite process is a multi-physical field coupled process, including electrical, chemical, and mechanical factors, no definitive conclusion can summarize the root cause of LDs growth in ASSBs till now. Herein, the existing works on mechanism, identification, and solution strategies of LD in ASSBs with inorganic electrolyte are reviewed in detail. The primary triggers are thought to originate mainly at the interface and within the electrolyte, involving mechanical imperfections, inhomogeneous ion transport, inhomogeneous electronic structure, and poor interfacial contact. Finally, some of the representative works and present an outlook are comprehensively summarized, providing a basis and guidance for further research to realize efficient ASSBs for practical applications.

中文翻译：

深入了解所有无机电解质固态电池中的枝晶问题：机制、检测和抑制策略

全固态电池（ASSB）由于其预期的高能量密度和容量而被认为是有前途的下一代储能设备之一。然而，由于锂枝晶（LD）生长不受限制而导致的故障一直是一个关键问题。此外，对固态电解质内部枝晶生长的理解是有限的。由于枝晶过程是一个多物理场耦合过程，包括电学、化学和机械因素，到目前为止还没有明确的结论可以概括ASSB中LD生长的根本原因。本文详细回顾了无机电解质 ASSB 中 LD 的机理、识别和解决策略的现有工作。主要的触发因素被认为主要源于界面和电解质内部，涉及机械缺陷、不均匀的离子传输、不均匀的电子结构和不良的界面接触。最后，对一些代表性工作进行了全面总结并提出展望，为进一步研究以实现高效ASSB的实际应用提供基础和指导。

更新日期：2023-12-05

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