%0 Journal Article
%A Wang, Jiqiang
%A Wu, Baohu
%A Wei, Peng
%A Sun, Shengtong
%A Wu, Peiyi
%T Fatigue-free artificial ionic skin toughened by self-healable elastic nanomesh
%J Nature Communications
%V 13
%N 1
%@ 2041-1723
%C [London]
%I Nature Publishing Group UK
%M FZJ-2022-03235
%P 4411
%D 2022
%X Robust ionic sensing materials that are both fatigue-resistant and self-healable like human skin are essential for soft electronics and robotics with extended service life. However, most existing self-healable artificial ionic skins produced on the basis of network reconfiguration suffer from a low fatigue threshold due to the easy fracture of low-energy amorphous polymer chains with susceptible crack propagation. Here we engineer a fatigue-free yet fully healable hybrid ionic skin toughened by a high-energy, self-healable elastic nanomesh, resembling the repairable nanofibrous interwoven structure of human skin. Such a design affords a superhigh fatigue threshold of 2950 J m−2 while maintaining skin-like compliance, stretchability, and strain-adaptive stiffening response. Moreover, nanofiber tension-induced moisture breathing of ionic matrix leads to a record-high strain-sensing gauge factor of 66.8, far exceeding previous intrinsically stretchable ionic conductors. This concept creates opportunities for designing durable ion-conducting materials that replicate the unparalleled combinatory properties of natural skins more precisely
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 35906238
%U <Go to ISI:>//WOS:000840832000015
%R 10.1038/s41467-022-32140-3
%U https://juser.fz-juelich.de/record/909546