固态有机材料在双离子电池正极中的应用  

Applications of Solid Organic Compounds as High-performance Cathode in Dual-ion Batteries

作　　者：高燕萍 严顺榕 吴斌 林晶晶 黄俊杰[1] Gao Yanping;Yan Shunrong;Wu Bin;Lin Jingjing;Huang Junjie(Institute of Chemical Engineering,Shaoxing University,Shaoxing 312000,China)

机构地区：[1]绍兴文理学院化学化工学院,浙江绍兴312000

出　　处：《广东化工》2020年第15期79-80,共2页Guangdong Chemical Industry

基　　金：国家自然科学基金项目(批准号:21875142)。

摘　　要：双离子电池(DIBs)是一种阴阳离子同时参与氧化还原反应的电池体系,具有工作电压高,安全性能好等优势。在双离子电池中,正极发生阴离子(如PF6-)的嵌脱反应,阴离子普遍具有较大的离子半径,虽然在石墨的层间实现了嵌入/脱出反应,但也容易造成石墨结构中电化学活性位点损失,甚至发生石墨层脱落粉化等不利,因而出现阴离子嵌脱性能差的严重问题。为此,寻找结构稳定的储阴离子材料成为双离子电池实现应用的关键。固态有机化合物材料结构柔性、官能团易调控及可再生等优点,极具潜力用于双离子电池正极。本文综述了固态有机化合物作为双离子电池正极进行储阴离子的研究。Dual-ion battery(DIBs) is a new battery system in which both cations and anions participate in the electrode reaction, and it has the advantages of high working voltage and good safety. In DIBs, cathode has the function to insert/release anions(such as PF6-), but it also need to face the disadvantage of anions with large sizes. Though graphite allows the insertion/release of anions in the interlayer, which is easy to scarify the electrochemical active sites and exfoliate the interlayer, decreasing the charge and discharge capacity and worsening the cycling stability. Therefore, the novel cathode material with stable structure becomes is very crucial to the practical application of DIBs. Solid organic compound has the advantage of soft structure, easy design of functional groups and renewable property, which is promising to be used as cathode material of LIBs. This article summarizes the anion storage performance of solid organic compounds as cathodes in LIBs.

关 键 词：固态有机物 储阴离子 正极 双离子电池 

分 类 号：TQ[化学工程]