An Environment-Tolerant Ion-Conducting Double-Network Composite Hydrogel for High-Performance Flexible Electronic Devices

Abstract High-performance ion-conducting hydrogels (ICHs) are vital for developing flexible electronic devices. However, the robustness and ion-conducting behavior of ICHs deteriorate at extreme temperatures, hampering their use in soft electronics. To resolve these issues, a method involving freeze–thawing and ionizing radiation technology is reported herein for synthesizing a novel double-network (DN) ICH based on a poly(ionic liquid)/MXene/poly(vinyl alcohol) (PMP DN ICH) system. The well-designed ICH exhibits outstanding ionic conductivity (63.89 mS cm −1 at 25 °C), excellent temperature resistance (− 60–80 °C), prolonged stability (30 d at ambient temperature), high oxidation resistance, remarkable…

• NN
  National Natural Science Foundation of China

  Awards: 52077095, 11875138
• HU
  Huazhong University of Science and Technology
• SU
  Sichuan University
• SK
  State Key Laboratory of Polymer Materials Engineering