物理化学学报

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二次电池聚合物有机电极材料

王睿, 甘小塘, 王潜, 宋智平   

  1. 化学电源材料与技术湖北省重点实验室,武汉大学化学与分子科学学院,湖北 武汉 430072
  • 收稿日期:2026-01-11 修回日期:2026-02-12 录用日期:2026-03-13
  • 通讯作者: 宋智平 E-mail:zpsong@whu.edu.cn

Polymeric organic electrode materials for rechargeable batteries

Rui Wang, Xiaotang Gan, Qian Wang, Zhiping Song   

  1. Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, China
  • Received:2026-01-11 Revised:2026-02-12 Accepted:2026-03-13
  • Contact: Zhiping Song E-mail:zpsong@whu.edu.cn
  • Supported by:
    We gratefully acknowledge financial support from the National Key Research and Development Program of China (2022YFB2402201) and the National Natural Science Foundation of China (Nos. 21975189, 22179102 and 22379115).

摘要: 聚合物有机电极材料(POEMs)因其高性能、低成本及资源可持续性优势,已成为下一代二次电池的颇具潜力的候选材料。这类材料具有显著的结构与性能可调性,相较于小分子类似物溶解性大幅降低,且对多种阳离子/阴离子电荷载流子展现出广泛兼容性,使其能应用于几乎所有类型的二次电池体系。其中,n型材料主要作为金属有机电池正极(匹配Li、Na、K、Mg、Al、Zn等金属负极),p型材料则普遍用于双离子电池正极。过去数十年间,研究者已开发出丰富的n型与p型氧化还原活性基团,典型代表包括羰基(C=O)、亚胺(C=N)、二硫键(S–S)及胺基(–NR–)。通过化学/电化学氧化聚合、催化交叉偶联、缩聚等合成策略,这些电活性单元可通过多种构筑方式整合至聚合物结构中:通过C–C/C–N键直接偶联、利用电化学惰性或活性连接基团进行桥接、环化形成氧化还原活性连接基团、以及作为侧链接枝到聚合物主链上。为获得最佳电化学性能并建立明确的构效关系,需要在研究路径的每个阶段协同努力:合理的分子设计与低成本的合成工艺协同,材料的严格纯化与结构的准确表征,与导电碳在电极中的均匀分散,电解液组成、电压窗口、电流倍率等测试条件的精细优化,电化学性能与氧化还原机理的客观评估。这些系统性进展将引导POEMs朝着更具科学理性与实际可行性的电池技术方向发展。

关键词: 聚合物有机电极材料, 二次电池, 氧化还原机制, 聚合物构筑, 合成策略

Abstract: Polymeric organic electrode materials (POEMs) have emerged as promising candidates for next-generation rechargeable batteries that combine high performance, low cost, and resource sustainability. They offer numerous advantages, including exceptional structural and property tunability, significantly reduced solubility compared to their small-molecule counterparts, and broad compatibility with a wide range of cationic and anionic charge carriers, which enables their application in nearly all types of rechargeable battery systems. Among POEMs, n-type materials are typically employed as cathodes in metal-organic batteries paired with metal anodes such as Li, Na, K, Mg, Al, and Zn, while p-type materials are commonly used as cathodes in dual-ion batteries. Over the past decades, a rich library of n-type and p-type redox-active groups has been developed, exemplified by carbonyls (C=O), imines (C=N), disulfides (S–S), and amines (–NR–). Through diverse synthetic strategies, including chemical or electrochemical oxidative polymerization, catalyzed cross-coupling, and polycondensation, these electroactive units can be integrated into polymeric frameworks via multiple architectural motifs: direct coupling through C–C or C–N bonds, bridging with electrochemically inactive or active linkers, cyclization to form redox-active rings, and pendant grafting onto polymer backbones. To achieve optimal electrochemical performance and establish a clear structure-performance relationship, concerted efforts are required at every stage of the research pathway: rational molecular design coupled with cost-effective synthesis; rigorous purification and accurate structural characterization of materials; uniform dispersion with conductive carbon additives in the electrode; careful optimization of testing conditions including electrolyte composition, voltage window, and current rate; and objective evaluation of electrochemical performance and redox mechanisms. These systematic advances will guide the development of POEMs toward more scientifically grounded and practically viable battery technologies.

Key words: Polymeric organic electrode materials, Rechargeable battery, Redox mechanism, Polymer architecture, Synthetic strategy