TY  - JOUR
AU  - Wang, Jiqiang
AU  - Wu, Baohu
AU  - Wei, Peng
AU  - Sun, Shengtong
AU  - Wu, Peiyi
TI  - Fatigue-free artificial ionic skin toughened by self-healable elastic nanomesh
JO  - Nature Communications
VL  - 13
IS  - 1
SN  - 2041-1723
CY  - [London]
PB  - Nature Publishing Group UK
M1  - FZJ-2022-03235
SP  - 4411
PY  - 2022
AB  - 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
LB  - PUB:(DE-HGF)16
C6  - 35906238
UR  - <Go to ISI:>//WOS:000840832000015
DO  - DOI:10.1038/s41467-022-32140-3
UR  - https://juser.fz-juelich.de/record/909546
ER  -