With the rapid development of wearable electronics, safety hazards and operational stability have drawn widespread attention in recent years. Biopolymers with low cost, eco‐friendly and biocompatibility are competitive candidates to replace traditional petroleum‐based materials in constructing gel polymer electrolytes. Biopolymer-based gel electrolytes (BGPEs) have exhibited broad application prospects through suitable structural designs and functionalization in flexible and smart electrochemical energy storage devices. This review summarized the recent advances of BGPEs with characteristic physicochemical properties and smart functionalities for application in electrochemical energy storage devices. The crosslinking methods and performance validation of BGPEs are also comprehensively reviewed and analyzed. Significantly, the functionalized BGPEs with self‐healing, stretchability, and thermotolerant abilities are emphasized. Finally, the remaining challenges and future directions of BGPEs for application in advanced electrochemical energy storage devices are outlined to provide guidance for their further development.

中文翻译：

---

用于电化学储能的生物聚合物凝胶电解质：进展与前景

近年来，随着可穿戴电子产品的快速发展，安全隐患和运行稳定性受到广泛关注。具有低成本、环保和生物相容性的生物聚合物是替代传统石油基材料构建凝胶聚合物电解质的有竞争力的候选者。基于生物聚合物的凝胶电解质（BGPE）通过适当的结构设计和功能化在柔性和智能电化学储能装置中展现出广阔的应用前景。该综述总结了具有特征理化性质和智能功能的BGPE在电化学储能装置中应用的最新进展。 BGPE 的交联方法和性能验证也得到了全面的回顾和分析。值得注意的是，具有自修复、拉伸性和耐热能力的功能化 BGPE 受到了重视。最后，概述了 BGPE 在先进电化学储能设备中应用的剩余挑战和未来方向，为其进一步发展提供指导。