Trade-offs between ion-conducting and mechanical properties: The case of polyacrylate electrolytes  

作　　者：Guoli Lu Yaojian Zhang Jianjun Zhang Xiaofan Du Zhaolin Lv Junzhe Du Zhiming Zhao Yue Tang Jingwen Zhao Guanglei Cui 

机构地区：[1]Qingdao Industrial Energy Storage Research Institute,Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences,Qingdao,People's Republic of China [2]School of Future Technology,University of Chinese Academy of Sciences,Beijing,People's Republic of China [3]The Biodesign Institute and School of Molecular Sciences,Arizona State University,Tempe,Arizona,USA [4]Solid Energy System Technology Center,Shandong Energy Institute,Qingdao,People's Republic of China

出　　处：《Carbon Energy》2023年第2期24-60,共37页碳能源（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:21975271,22139001;Shandong Energy Institute,Grant/Award Number:SEI I202127;Youth Innovation Promotion Association of CAS,Grant/Award Number:2019214;Key Scientific and Technological Innovation Project of Shandong,Grant/Award Number:2020CXGC010401;Major basic research projects of Shandong Natural Science Foundation,Grant/Award Number:ZR2020ZD07;Strategic Priority Research Program of Chinese Academy of Sciences,Grant/Award Number:XDA22010600。

摘　　要：Polymer electrolytes(PEs)have been long recognized as the key materials to enable energy-dense batteries and render flexible energy devices practically viable,owing to their chemical and mechanical reliability.However,much of their promise is yet to be realized.The roomtemperature ion conductivity of existing PEs still falls short of the implementation criterion of 10^(-4) S cm^(-1) on the promise of acceptable mechanical properties,thereby precluding their practical application.The twin but inversely related duties of polymers,that is,functioning as both an ion-conducting medium and a structural backbone,underlie this issue but are less elucidated systematically.The polyacrylate(PA)family is among promising polymer matrices on account of ester polarity,electrode compatibility,chemical tunability,and mechanical durability.The extensive applicability of PA in plasticized gels,dry solids,and emerging composites makes PA-based PEs representative to illustrate the trade-off between ion conduction and mechanical strength.We herein seek to outline the stated long-standing conflict exemplified by PA-based PEs,focusing on crucial strategies toward balancing and reconciling the two mutually exclusive properties,with the intention of offering designing guidelines for next-generation PEs.

关 键 词：ionic conductivity lithium batteries mechanical properties POLYACRYLATE polymer electrolytes trade-offs 

分 类 号：O63[理学—高分子化学]