Sulfur-linked carbonyl polymer as a robust organic cathode for rapid and durable aluminum batteries

作     者：Liang Fang Limin Zhou Lianmeng Cui Peixin Jiao Qinyou An Kai Zhang Liang Fang;Limin Zhou;Lianmeng Cui;Peixin Jiao;Qinyou An;Kai Zhang

作者机构：Department of Energy and Materials EngineeringDongguk University-SeoulSeoul 04620Republic of Korea Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)Engineering Research Center of High-efficiency Energy Storage(Ministry of Education)Renewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071China State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070HubeiChina Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong LaboratoryFoshan 528200GuangdongChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第12期

页      面：320-327,I0007页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the Ministry of Science and Technology of China (2019YFA0705600 and 2017YFA0206700) the National Natural Science Foundation of China (21805141,22005155 and 52072186) the 111 Project from the Ministry of Education of China (B12015) the Fundamental Research Funds for the Central Universities (92122001) the Young Elite Scientist Sponsorship Program by CAST (2019QNRC001) 

主　　题：Aluminum batteries Organic materials Carbonyl polymer Electrochemical active sites Ordered arrangement 

摘      要：Rechargeable aluminum batteries are believed as a promising next-generation energy-storage system due to abundant low-cost Al sources and high volumetric specific *** Al-storage cathodes,however,are plagued by strong electrostatic interaction between host materials and carrier ions,leading to large overpotential and undesired cycling stability as well as sluggish ion diffusion ***,sulfur-linked carbonyl polymer based on perylene-3,4,9,10-tetracarboxylic dianhydride(PTCDA) as the cathode materials for ABs is proposed,which demonstrates a small voltage polarization(135 mV),a reversible capacity of 110 mAh g^(-1) at 100 mA g^(-1) even after 1200 cycles,and rapid Al-storage *** with PTCDA,the sulfide polymer possesses higher working voltage because of its lower LUMO energy level according to theoretical *** ordered carbonyl active sites in sulfide polymer contribute to the maximized material utilization and rapid ion coordination and dissociation,resulting in superior rate ***,the bridged thioether bonds endow the polysulfide with robust and flexible structure,which inhibits the dissolution of active materials and improves cycling *** work implies the importance of ordered arrangement of redox active moieties for organic electrode,which provides the theoretical direction for the structural design of organic materials applied in multivalent-ion batteries.