合理设计多电子转移机制实现更好的水系锌-有机电池  

Rational design and prospects for advanced aqueous Zn-organic batteries enabled by multielectron redox reaction

作　　者：Kovan Khasraw Abdalla 王越洋 Kozhi Khasraw Abdalla 熊嘉伟 李琦 王斌 孙晓明 赵逸 Kovan Khasraw Abdalla;Yueyang Wang;Kozhi Khasraw Abdalla;Jiawei Xiong;Qi Li;Bin Wang;Xiaoming Sun;Yi Zhao(State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing,100029,China;Department of Biomedical Science,Komar University of Science and Technology,Sulaimaniyah,Iraq;College of Education,University of Georgia,Athens,GA,30605,USA;Minmetals Exploration&Development CO.,LTD,Beijing,100010,China;Advanced Technology Research Institute,Beijing Institute of Technology,Jinan,250300,China)

机构地区：[1]State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing,100029,China [2]Department of Biomedical Science,Komar University of Science and Technology,Sulaimaniyah,Iraq [3]College of Education,University of Georgia,Athens,GA,30605,USA [4]Minmetals Exploration&Development CO.,LTD,Beijing,100010,China [5]Advanced Technology Research Institute,Beijing Institute of Technology,Jinan,250300,China

出　　处：《Science China Materials》2024年第5期1367-1378,共12页中国科学（材料科学）（英文版）

基　　金：supported by the National Natural Science Foundation of China(22209006 and 21935001);the Natural Science Foundation of Shandong Province(ZR2022QE009);the Fundamental Research Funds for the Central Universities(buctrc202307);the National Key Beijing Natural Science Foundation(Z210016)。

摘　　要：由于环境相容性好、分子结构可定制和有机物资源丰富等优势,水系锌-有机物电池(AZOBs)成为构建新一代大规模储能系统的关键技术.然而,电导率差、有机物溶解和单一活性基团等问题严重限制了有机物正极材料的倍率性能、稳定性和比容量.因此,具备多氧化还原中心和稳定骨架的有机物正极材料对于实现高性能有机物正极材料至关重要.这些多官能团有机物可协同作用并激发基于多电子转移的氧化还原反应,进而促进H^(+)/Zn^(2+)共嵌以显著提升电池性能.本文探索了多官能团有机物电极的分子结构与其氧化还原反应机理之间的构效关系.本文综述了多官能团有机正极材料在提高氧化还原电位、比容量、动力学以及稳定性等方面面临的挑战和解决策略,为进一步开发先进AZOBs的关键正极材料提供了重要基础.Due to their environmental compatibility,customizable molecular structures,and abundant organic host resources,aqueous Zn-organic batteries(AZOBs)are essential in constructing next-generation energy storage devices.Nevertheless,the current limitations of AZOBs of suboptimal energy density,inadequate rate capability,capacity decay caused by single redox groups,poor conductivity,and high solubility of organic hosts highlight the need for advancement.Therefore,organic cathode materials with multiredox centers and stable skeletons are continuously being pursued in developing high-performance AZOBs.These multifunctional organic compounds can cooperatively trigger multielectron redox reactions with facilitated H^(+)/Zn^(2+)costorage,thereby significantly boosting the battery performance of organic cathode hosts.Furthermore,an imperative aspect of this study involves investigating the structure-function relationship between molecular structures and redox reaction mechanisms within multifunctional organic electrodes,particularly in the context of Zn-organic full-battery systems.This review outlines the challenges and strategies to enhance the redox potential,active capacity,redox kinetics,and cyclability of multifunctional organic cathode materials,providing a valuable foundation for future advanced AZOBs.

关 键 词：aqueous zinc organic battery multifunctional organic cathodes energy storage mechanism molecular structure optimization high performance 

分 类 号：TM912[电气工程—电力电子与电力传动]