Ionogels composed of ionic liquids and gelling solid matrices offer several advantages as solid‐state electrolytes for rechargeable batteries, including safety under diverse operating conditions, favorable electrochemical and thermal properties, and wide processing compatibility. Among gelling solid matrices, nanoscale materials have shown particular promise due to their ability to concurrently enhance ionogel mechanical properties, thermal stability, ionic conductivity, and electrochemical stability. These beneficial attributes suggest that ionogel electrolytes are not only of interest for incumbent lithium‐ion batteries but also for next‐generation rechargeable battery technologies. Herein, recent advances in nanocomposite ionogel electrolytes are discussed to highlight their advantages as solid‐state electrolytes for rechargeable batteries. By exploring a range of different nanoscale gelling solid matrices, relationships between nanoscale material structure and ionogel properties are developed. Furthermore, key research challenges are delineated to help guide and accelerate the incorporation of nanocomposite ionogel electrolytes in high‐performance solid‐state rechargeable batteries.

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用于固态可充电电池的纳米复合离子凝胶电解质

由离子液体和胶凝固体基质组成的离子凝胶作为可再充电电池的固态电解质具有多个优势，包括在各种操作条件下的安全性，良好的电化学和热性能以及广泛的加工兼容性。在胶凝固体基质中，由于纳米级材料能够同时增强离子凝胶的机械性能，热稳定性，离子电导率和电化学稳定性，因此已显示出特别的前景。这些有益的属性表明，离子凝胶电解质不仅是现有锂离子电池的关注点，而且也是下一代可再充电电池技术的关注点。在此，讨论了纳米复合离子凝胶电解质的最新进展，以突出其作为可再充电电池用固态电解质的优势。通过探索一系列不同的纳米级胶凝固体基质，开发了纳米级材料结构与离子凝胶性质之间的关系。此外，确定了关键的研究挑战，以帮助指导和加速将纳米复合离子凝胶电解质引入高性能固态可充电电池中。