Electrons/ions dual transport channels design: Concurrently tuning interlayer conductivity and space within re-stacked few-layered MXenes film electrodes for high-areal-capacitance stretchable micro-supercapacitor-arrays

The demonstrated “electrons/ions dual transport channels design” within the restacked few-layered MXene film electrodes through inserting elaborately synthesized 1D conductive core-shell structured bacterial cellulose (BC)@polypyrrole (PPy) fibers, realizes an impressive enhancement in areal capacitance and toughness of the acquired MXene/BC@PPy hybrid films, which enables the further fabricated stretchable micro-supercapacitor-arrays with areal capacitance/energy density densities as much as 200.47 mF cm−2/0.01 mWh cm−2 and reversible stretchability up to strain of 200%.Image 1