近日，宁波东方理工大学（暂名）孙学良院士团队实现了固体溶剂化结构设计改进全固态有机电池。相关论文发表在2025年8月4日出版的《自然-化学》杂志上。

有机电极材料为下一代锂离子电池提供了一种通用的、可持续的方法，但受工作电压低和循环稳定性差的限制。

研究组报告了一种固体溶剂化结构设计策略，以提高全固态电池中有机电极材料的电压和稳定性。作为概念的证明，他们将卤化物电解质作为固体溶质，将四氯邻苯醌作为固体溶剂，形成均匀的固体阴极溶液。系统优化内溶剂化配置，使四氯邻苯醌实现高工作电压(3.6V vs. Li⁺/Li)在室温下在不对称固体溶剂化鞘内。

此外，平衡氧化还原途径和静电驱动的自愈界面显示了全固态电池在低堆叠压力下的快速氧化还原动力学和超过7500次循环的稳定性能。这项工作表明，有机电极材料可以作为全固态电池中过渡金属氧化物的可行、耐用和经济的替代品。

附：英文原文

Title: Solid solvation structure design improves all-solid-state organic batteries

Author: Hu, Yang, Su, Han, Fu, Jiamin, Luo, Jing, Yu, Qihang, Zhao, Feipeng, Li, Weihan, Deng, Sixu, Liu, Yu, Yuan, Yi, Gan, Yi, Wang, Yijia, Kim, Jung Tae, Chen, Ning, Shakouri, Mohsen, Hao, Xiaoge, Gao, Yingjie, Pang, Tianlu, Zhang, Nian, Jiang, Ming, Li, Xia, Zhao, Yang, Tu, Jiangping, Wang, Changhong, Sun, Xueliang

Issue&Volume: 2025-08-04

Abstract: Organic electrode materials offer a versatile, sustainable approach for next-generation lithium-ion batteries but are limited by low working voltages and poor cycling stability. Here we report a solid-solvation-structure design strategy to improve both the voltage and stability of organic electrode materials in all-solid-state batteries. As a proof of concept, we incorporate halide electrolytes as solid solutes and tetrachloro-o-benzoquinone as a solid solvent to form homogeneous solid cathode solutions. Systematic optimization of the inner solvation configuration enables tetrachloro-o-benzoquinone to achieve a high working voltage (3.6V vs. Li+/Li) at room temperature within an asymmetric solid solvation sheath. Moreover, the equilibrium redox pathway and electrostatically driven self-healing interfaces revealed rapid redox kinetics and stable performance over 7,500 cycles in all-solid-state batteries under low stack pressures. This work demonstrates that organic electrode materials can serve as viable, durable and cost-effective alternatives to transition metal oxides in all-solid-state batteries.

DOI: 10.1038/s41557-025-01866-0

Source: https://www.nature.com/articles/s41557-025-01866-0