Enhanced high-temperature energy storage in semi-aromatic polyimides <i>via</i> dual regulation of short-range ordered and crosslinked architectures

Abstract

By the dual regulation of the short-range ordered structure and the cross-linked structure, semi-aromatic polyimide (E-SAPI 260 ) attained a high U d of 8.61 J cm −3 and 6.50 J cm −3 at 150 °C and 200 °C, respectively, with η exceeding 90%.