Synthesis and Characterization of a Phthalimide‐Containing Redox‐Active Polymer for High‐Voltage Polymer‐Based Redox‐Flow Batteries. Issue 4 (21st December 2017)

• Record Type: Journal Article
• Authors: Winsberg, Jan; Benndorf, Stefan; Wild, Andreas; Hager, Martin D.; Schubert, Ulrich S.
• Is Part Of: Macromolecular chemistry and physics. Volume 219:Issue 4(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-12-21
• Subjects: cyclic voltammetry -- electrochemistry -- phthalimide polymers -- redox‐flow batteries; Polymers -- Periodicals; Polymerization -- Periodicals; Synthetic products -- Periodicals; Macromolecules -- Periodicals; 547.7
• DOI: 10.1002/macp.201700267
• Languages: English
• ISSNs: 1022-1352

Abstract

Abstract: A phthalimide‐containing redox‐active polymer is designed and synthesized in particular for the application in all‐organic redox‐flow batteries. 4‐Vinylbenzyl phthalimide is prepared in a one‐step reaction and copolymerized with a solubility promoting comonomer. The novel polymer is electrochemically characterized in various electrolytes via cyclic voltammetry and features a quasireversible reduction reaction at E 0 ½ = −1.89 V versus AgNO3 /Ag. Afterward, the polymer is applied as anode‐active material in a first preliminary battery test in combination with a 2, 2, 6, 6‐tetramethylpiperdinyl‐ N ‐oxyl‐containing polymer as cathode‐active material and a porous membrane as separator, yielding a polymer‐based all‐organic battery system with a high cell voltage of 2.0 V. Abstract : A phthalimide‐containing redox‐active polymer is designed and synthesized in particular for the application in all‐organic redox‐flow batteries. 4‐Vinylbenzyl phthalimide is copolymerized with a solubility promoting comonomer. The novel polymer features a quasireversible reduction reaction at E 0 ½ = −1.89 V versus AgNO3 /Ag. Afterward, the polymer is applied as anode‐active material in a first preliminary battery test.