近期，我院研究生陆晨恺（第一作者）、教师苏超（通讯作者）等人在《Journal of Colloid and Interface Science》（IF=9.7）上发表题为“Advances in silane-bridging engineering for stable lithium metal batteries”的综述文章。
论文简介如下：
锂金属电池（LMB）作为一种高能量密度的突出电池技术，已引起广泛关注。然而，其商业化进程因容量衰减过快及潜在安全风险而受阻。这些障碍源于循环过程中的挑战，包括固体电解质界面（SEI）层不稳定以及锂枝晶生长失控等问题。为解决上述问题，兼具有机官能团与烷氧基团的硅烷偶联剂（SCAs）已成为提升LMB性能的首选关键材料之一，并被广泛应用于界面粘合促进剂领域。具体而言，通过将各类SCAs引入人工SEI层、液态电解质、隔膜及固态复合电解质体系，已实现锂离子电池的长期稳定循环。本文系统综述了SCAs在锂电池设计与应用领域的最新进展，旨在揭示其结构-功能关系及其在优化电池性能中的关键作用。此外，本文还阐述了SCAs在锂电池中扩大应用面临的现有挑战及未来前景。最终，作者期望本综述能为多功能SCAs的设计提供理论指导，并激励研究者进一步探索SCAs在储能系统中的应用潜力。
Lithium metal batteries (LMBs) using metallic lithium have garnered considerable attention as a prominent battery technology with high energy density. Nonetheless, the commercialization of LMBs has been hindered by rapid capacity decay and potential safety risks. These impediments stem from challenges during cycling processes, including unstable solid electrolyte interface (SEI) layer and uncontrollable lithium dendrites growth. To tackle the above-mentioned issues, silane coupling agents (SCAs), which contain both organic functional groups and alkoxy groups, have emerged as one of the preferred pivotal materials for enhancing LMBs performance, and is seen as a popular interface adhesion promoter. Specifically, by incorporating various SCAs into the artificial SEI layer, the liquid electrolyte, the separator, and the solid-state composite electrolyte, stable long-term cycling of LMBs has been achieved. This review comprehensively summarizes and discusses the latest advancements in the design and application of SCAs into LMBs, aiming to reveal both the structure-function relationship and the key role in optimizing the performance of LMBs. Moreover, existing challenges and future prospects for the expanded utilization of SCAs in LMBs are provided. Ultimately, the authors envisage that this review can provide theoretical guidance for the design of multifunctional SCAs, and inspire researchers to further explore the potential of SCAs applied to energy storage systems.
Schematic illustration of SCAs and their applications in advanced LMBs, including artificial SEI layer, LEs, separators, and SCEs.
