Addressing the Achilles'heel of pseudocapacitive materials:Long-term stability

作     者：Tianyu Liu Yat Li 

作者机构：Department of ChemistryVirginia Polytechnic Institute and State UniversityBlacksburgVirginia Department of Chemistry and BiochemistryUniversity of CaliforniaSanta CruzCalifornia 

出 版 物：《InfoMat》 (信息材料（英文）)

年 卷 期：2020年第2卷第5期

页      面：807-842页

核心收录：

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

基　　金：Merced nAnomaterials Center for Energy and Sensing(MACES),Grant/Award Number:NNX15AQ01 support from Merced nAnomaterials Center for Energy and Sensing(MACES),a NASA funded MIRO center,under award NNX15AQ01 

主　　题：conjugated polymer cycling stability metal carbide metal nitride metal oxide metal sulfide pseudocapacitive 

摘      要：Electrode materials with high energy densities and long-lasting performances are crucial to durable and reliable electrochemical energy storage devices for modern information technologies(eg,Internet of things).In terms of supercapacitors,their low energy densities could be enhanced by using pseudocapacitive electrodes,but meanwhile,their ultralong lifetimes are compromised by the limited chargedischarge cycling stabilities of pseudocapacitive *** review article discusses on the cycling instability issues of five common pseudocapacitive materials:conjugated polymers(or conducting polymers),metal oxides,metal nitrides,metal carbides,and metal ***,the article includes the fundamentals of the failure modes of these materials,as well as thoroughly surveys the design rationales and technical details of the cycling-stability-boosting tactics for pseudocapacitive materials that reported in the ***,promising opportunities,future challenges,and possible solutions associated with pseudocapacitive materials are discussed.