Jin Mengyuan, Xu Deliang, Su Zilong, Liu Ran, Xiang Mingchuan, Cheng Yuanrong, Wu Renbing, Guo Yanhui
College of Smart Materials and Future Energy, Fudan University, Shanghai, 200433, P. R. China.
State Key Laboratory of Coatings for Advanced Equipment, Fudan University, Shanghai, 200433, P. R. China.
Adv Mater. 2025 Sep 7:e07809. doi: 10.1002/adma.202507809.
All-solid-state batteries (ASSBs) utilizing solid electrolytes, which replace flammable liquid electrolytes, are regarded as one of the most promising prospective energy storage devices due to their inherent safety advantages and high energy density potential. As an emerging class of electrolytes for ASSBs, hydridoborates have attracted research interest because of their attractive material properties, including superior compatibility with metal anodes, low gravimetric density, and excellent solution processability. In this review, hydridoborate-based solid electrolytes (SEs) for all-solid-state batteries, including boranuide-based SEs, arachno-hydridoborate-based SEs, nido-hydridoborate-based SEs, closo-hydridoborate-based SEs, and conjuncto-hydridoborate-based SEs, are comprehensively summarized. Specifically, the strategies to improve ion conductivity, the ion conduction mechanism, and the performance of hydridoborate-based SEs in ASSBs are discussed. Finally, the practical challenges for the application of hydridoborate SEs in ASSBs and the future development in the field are proposed. This review provides a detailed account of the advancements in hydridoborate-based solid electrolytes, not only mapping the progress made in this field but also proposing an effective strategy for researchers to innovate efficiently to realize the practical applications of hydridoborate-based SEs for the next generation of rechargeable batteries.
使用固体电解质替代易燃液体电解质的全固态电池（ASSB），因其固有的安全优势和高能量密度潜力，被视为最具前景的储能装置之一。作为全固态电池的一类新兴电解质，氢硼化物因其具有吸引人的材料特性，包括与金属阳极的优异兼容性、低重量密度和出色的溶液加工性能，而引起了研究兴趣。在这篇综述中，全面总结了用于全固态电池的基于氢硼化物的固体电解质（SE），包括基于硼氮化物的SE、基于蛛网型氢硼化物的SE、基于巢型氢硼化物的SE、基于闭式氢硼化物的SE和基于连接型氢硼化物的SE。具体讨论了提高离子电导率的策略、离子传导机制以及基于氢硼化物的SE在全固态电池中的性能。最后，提出了基于氢硼化物的SE在全固态电池应用中的实际挑战以及该领域的未来发展方向。这篇综述详细介绍了基于氢硼化物的固体电解质的进展，不仅梳理了该领域取得的进展，还为研究人员提出了一种有效策略，以便他们高效创新，实现基于氢硼化物的SE在下一代可充电电池中的实际应用。
