Abstract
AbstractMechanically robust, highly ionic conductive gels based on a random copolymer of poly[styrene‐ran‐1‐(4‐vinylbenzyl)‐3‐methylimidazolium hexafluorophosphate] (P[S‐r‐VBMI][PF6]) and the ionic liquid 1‐ethyl‐3‐methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMI][TFSI]) are successfully prepared. The gels with either homo P[VBMI][PF6] or conventional PS‐block‐poly(methyl methacrylate)‐block‐PS (SMS) show significant trade‐off between ionic conductivity and mechanical resilience. In contrast, the P[S‐r‐VBMI][PF6]‐based gels exhibit both large elastic modulus (≈0.105 MPa) and ionic conductivity (≈1.15 mS cm−1) at room temperature. To demonstrate that these materials can be used as solid‐state electrolytes, the ion gels are functionalized by incorporating electrochromic (EC) chromophores (ethyl viologen, EV2+) and are applied to EC devices (ECDs). The devices show low‐voltage operation, large optical transmittance variation, and good cyclic coloration/bleaching stability. In addition, flexible ECDs are fabricated to take advantage of the mechanical properties of the gels. The ECDs have excellent bending durability under both compressive and tensile strains. The versatile P[S‐r‐VBMI][PF6]‐based gel is anticipated to be of advantage in flexible electrochemical applications, such as batteries and electrochemical displays.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
