Premium
Ion transport in topological all‐solid‐state polymer electrolyte improved via graphene‐oxide
Author(s) -
Zhang Lei,
Jin Gan,
Ma Tianlin,
Wang Shi
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50173
Subject(s) - graphene , materials science , polymer , atom transfer radical polymerization , oxide , electrolyte , ethylene oxide , ionic conductivity , methacrylate , polymer chemistry , monomer , ionic liquid , ethylene glycol , electrochemistry , chemical engineering , polymerization , quasi solid , topology (electrical circuits) , nanotechnology , chemistry , organic chemistry , electrode , composite material , copolymer , dye sensitized solar cell , catalysis , mathematics , combinatorics , engineering , metallurgy
Designing and constructing novel topological all‐solid‐state polymer electrolyte (SPE) matrices can improve the ionic conducting ability of the prepared SPEs compared with the linear ones. Here, we construct a novel topological polymer electrolyte matrix using triphenylene as core and block poly(methyl methacrylate)‐poly(poly[ethylene glycol] methyl ether methacrylate) as arm. Specifically, the arm is attached onto the core via sequential atom transfer radical polymerization. The molecular weight of the polymers is well controlled via adjusting the inventory rating of monomers, the optimal SPE obtained via solution casting has an ambient temperature ionic conductivity of 3.69 × 10 −5 S cm −1 , which is higher than typical linear poly(ethylene oxide)‐based SPE (usually 10 −6 –10 −8 S cm −1 ). The electrochemical performance is further improved through adding given contents of graphene‐oxide into the SPE. Thus, we believe, through molecular designing and the widely used composite tactics, new class of electrolytes with high‐electrochemical performance for all‐solid‐state Li‐ion batteries can be developed.