“…As illustrated in Figure b, the present strategy of increasing the precursor molecular weight has been shown to offer enhanced conversion efficiency. More importantly, as can be witnessed in Table , the observed flexoelectric coefficient and mechanoelectrical energy conversion efficiency of the present PEI-co-PEGDGE-based PEM composites are significantly higher than those of ceramics, ,, liquid crystal elastomers, , electroactive polymers, − solid polymer electrolyte membranes, ,, and biomaterials, including auditory hairs and human bones, hitherto reported. Hence, it opens future investigations on other effects such as salt type (e.g., ionic liquid), network architecture, and temperature on the flexoelectric energy harvesting performance.…”