Charting the course to solid-state dual-ion batteries  

作　　者：Habtom D.Asfaw Antonia Kotronia Nuria Garcia-Araez Kristina Edström Daniel Brandell 

机构地区：[1]Department of Chemistry,Ångström Laboratory,Uppsala University,Uppsala,Sweden [2]Department of Chemistry,University of Southampton,Southampton,UK

出　　处：《Carbon Energy》2024年第3期132-177,共46页碳能源（英文）

基　　金：support from Batteries Sweden(Grant No.Vinnova-2019-00064);the Stand-Up for Energy consortium,the ISCF Faraday Challenge for the project on“Degradation of Battery Materials”(Grant No.EP/S003053/1,FIRG024);the ERC(Grant No.771777 FUN POLYSTORE).

摘　　要：An electrolyte destined for use in a dual-ion battery(DIB)must be stable at the inherently high potential required for anion intercalation in the graphite electrode,while also protecting the Al current collector from anodic dissolution.A higher salt concentration is needed in the electrolyte,in comparison to typical battery electrolytes,to maximize energy density,while ensuring acceptable ionic conductivity and operational safety.In recent years,studies have demonstrated that highly concentrated organic electrolytes,ionic liquids,gel polymer electrolytes(GPEs),ionogels,and water-in-salt electrolytes can potentially be used in DIBs.GPEs can help reduce the use of solvents and thus lead to a substantial change in the Coulombic efficiency,energy density,and long-term cycle life of DIBs.Furthermore,GPEs are suited to manufacture compact DIB designs without separators by virtue of their mechanical strength and electrical performance.In this review,we highlight the latest advances in the application of different electrolytes in DIBs,with particular emphasis on GPEs.

关 键 词：anion intercalation concentrated electrolytes dual-ion battery graphite ionic liquids polymer electrolyte 

分 类 号：TM912[电气工程—电力电子与电力传动]