TY - JOUR
T1 - Designing double comb copolymer as highly lithium ionic conductive solid-state electrolyte membranes
AU - Moon, Juyoung
AU - Cho, Sanghyuk
AU - Song, Eunho
AU - Park, Kun Woo
AU - Chae, Youngjin
AU - Park, Jung Tae
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
KW - Atomic transfer radical polymerization (ATRP)
KW - Double comb copolymer
KW - Ionic conductivity
KW - Lithium salt
KW - Membrane
KW - Solid-state electrolyte
UR - http://www.scopus.com/inward/record.url?scp=85118884272&partnerID=8YFLogxK
U2 - 10.1016/j.reactfunctpolym.2021.105093
DO - 10.1016/j.reactfunctpolym.2021.105093
M3 - Article
AN - SCOPUS:85118884272
VL - 169
JO - Reactive and Functional Polymers
JF - Reactive and Functional Polymers
SN - 1381-5148
M1 - 105093
ER -