title: Reshaping Lithium Plating/Stripping Behavior via Bifunctional Polymer Electrolyte for Room-Temperature Solid Li Metal Batteries.
abstract: High-energy rechargeable Li metal batteries are hindered by dendrite growth due to the use of a liquid electrolyte. Solid polymer electrolytes, as promising candidates to solve the above issue, are expected to own high Li ion conductivity without sacrificing mechanical strength, which is still a big challenge to realize. In this study, a bifunctional solid polymer electrolyte exactly having these two merits is proposed with an interpenetrating network of poly(ether-acrylate) (ipn-PEA) and realized via photopolymerization of ion-conductive poly(ethylene oxide) and branched acrylate. The ipn-PEA electrolyte with facile processing capability integrates high mechanical strength (ca. 12 GPa) with high room-temperature ionic conductance (0.22 mS cm-1), and significantly promotes uniform Li plating/stripping. Li metal full cells assembled with ipn-PEA electrolyte and cathodes within 4.5 V vs Li+/Li operate effectively at a rate of 5 C and cycle stably at a rate of 1 C at room temperature. Because of its fabrication simplicity and compelling characteristics, the bifunctional ipn-PEA electrolyte reshapes the feasibility of room-temperature solid-state Li metal batteries.
authors.affiliation: CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China.|School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences , Beijing 100049, P. R. China.
authors.forename: Xian-Xiang
authors.initials: XX
authors.lastname: Zeng
authors.affiliation: CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China.|School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences , Beijing 100049, P. R. China.
authors.forename: Ya-Xia
authors.initials: YX
authors.lastname: Yin
authors.affiliation: CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China.
authors.forename: Nian-Wu
authors.initials: NW
authors.lastname: Li
authors.affiliation: CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China.|School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences , Beijing 100049, P. R. China.
authors.forename: Wen-Cheng
authors.initials: WC
authors.lastname: Du
authors.affiliation: CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China.|School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences , Beijing 100049, P. R. China.
authors.forename: Yu-Guo
authors.initials: YG
authors.lastname: Guo
authors.affiliation: CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China.|School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences , Beijing 100049, P. R. China.
authors.forename: Li-Jun
authors.initials: LJ
authors.lastname: Wan