Strain-Induced Distortion of MXene Nanosheets Enabling Freestanding Electrodes with Linearly Upscaling Areal Capacitance at Ultrahigh Mass Loadings

. For practical applications, a soft-packaged pouch cell was fabricated, with 87.2% capacitance retention after 750 cycles. This work introduces a feasible strategy for the morphological editing of MXenes, showcasing their potential for next-generation areal-efficient energy storage technologies.