Synergistic promotion between tolerant polymer electrode and super-conductive polyelectrolyte enables anti-damage transient wearable electronics

Manufacturing highly durable and transient materials is urgently needed to achieve optimal performances in wearable electronics. Here, a comprehensive methodology to enhance the durability and transience of wearable electronics by utilizing polypyrrole/vermiculite/polysaccharide (PPy/VMT/AF) electrodes and acid-assisted polyacrylamide (HPAM) electrolytes. The mechanical/thermal/electrochemical properties of integrated electrodes are boosting by introducing negatively charged vermiculite in conductive polymer-polysaccharide, which can be completely degrade after 90 days. Pre-gel drying shrinkage and rehydration were utilized to prepare polyacrylamide hydrogel with frost resistance and ultrahigh conductivity (increased 32.2 times as compared to traditional polyacrylamide). The synergism between PPy/VMT/AF and HPAM enables flexible solid-state supercapacitors with exceptional electrochemical stability even under serious damage such as puncturing, burning and freeze. In addition, the fabricated self-powered pressure sensor realizes ML-assisted human motion recognition with an accuracy of 95.7 %. This work opens up a new perspective on future directions for multifunctional platforms for wearable electronic devices.