We present highly mechanical strength and ionic conductive solid-state electrolyte membranes based on amphiphilic double comb copolymer, i.e., poly(vinylidene chloride)-graft-poly(methyl methacrylate) (PVDC-g-PMMA) synthesized through atomic transfer radical polymerization (ATRP). Well-defined nanophase-separated amphiphilic double comb copolymers are complexed with two types of Li salts (LiTFSI and LiClO4) to form a solid-state electrolyte membrane. Compared to other types, the highest ionic conductivity of the solid-state electrolyte membranes is observed in an amphiphilic double comb copolymer with PVDC-g-PMMA/LiTFSI, due to the synergy of the dissociability of TFSI− and the hopping transport of lithium ions facilitated by PMMA chains. Moreover, the lowest activation energy (0.15 eV) and excellent ionic conductivity (1.3 × 10−3 S cm−1) are also observed in the same solid-state electrolyte membranes at room temperature.
|Number of pages||9|
|Journal||Reactive and Functional Polymers|
|Publication status||Published - 2021|
Bibliographical noteFunding Information:
This paper was supported by Konkuk University in 2019.
© 2021 Elsevier B.V.
Copyright 2021 Elsevier B.V., All rights reserved.
- Atomic transfer radical polymerization (ATRP)
- Double comb copolymer
- Ionic conductivity
- Lithium salt
- Solid-state electrolyte