The practical application of commercialized lithium-ion batteries (LIBs) currently faces challenges due to using liquid electrolytes (LEs), including limited energy density and insufficient safety performance. The combined application of solid-state polymer electrolytes (SPEs) and lithium metal anodes (LMAs) can address these challenges and has received extensive attention from researchers recently. There are various strategies for assembling SPEs into lithium metal batteries (LMBs), but the most promising strategy is the in situ polymerization strategy. The in situ polymerization strategy can achieve good interfacial contact between SPEs and electrodes, significantly reducing the interfacial resistance. This paper comprehensively reviews the latest in situ polymerization strategies for polymer solid-state lithium metal batteries (PSSLMBs), including the polymer system's design, the polymerization strategy's innovation, and the characterization of the whole cell. We summarize the components of the in situ polymerization system, such as monomers, initiators, lithium salts, and backbone materials, and focus on the methods to improve the ionic conductivity and further enhance the safety performance of SPEs, including strategies such as the addition of inorganic nanoparticles, inorganic-polymer hybridization, and the construction of artificial SEIs. The PSSLMBs prepared by the in situ polymerization strategy have good application prospects and potential to become the next generation of commercialized lithium batteries.

中文翻译：

---

锂金属电池固态聚合物电解质的原位聚合：综述


目前商业化锂离子电池（LIB）的实际应用由于使用液体电解质（LE）而面临能量密度有限和安全性能不足等挑战。固态聚合物电解质（SPE）和锂金属阳极（LMA）的联合应用可以解决这些挑战，最近受到了研究人员的广泛关注。将 SPE 组装成锂金属电池 (LMB) 的策略有多种，但最有前途的策略是原位聚合策略。原位聚合策略可以实现SPE和电极之间良好的界面接触，显着降低界面电阻。本文全面综述了聚合物固态锂金属电池（PSSLMB）的最新原位聚合策略，包括聚合物体系的设计、聚合策略的创新以及整个电池的表征。我们总结了原位聚合体系的组成部分，如单体、引发剂、锂盐和骨架材料，并重点讨论了提高离子电导率和进一步增强SPE安全性能的方法，包括添加无机纳米粒子、无机聚合物杂化以及人工SEI 的构建。原位聚合策略制备的PSSLMBs具有良好的应用前景，有潜力成为下一代商业化的锂电池。