Recent progress of stretchable MXene based micro-supercapacitors

The rapid development of wearable electronics has stimulated the urgent demand for compatible, miniaturized energy storage devices. As one most promising candidates, micro-supercapacitors (MSCs) have attracted significant attention, owing to their high power densities, long operation life, and fast charge/discharge rate. In comparison conventional, rigid MSCs, deformable MSCs are attracting more attention superior tolerance various deformations, including stretching, bending, twisting, guaranteeing smooth electronics. MXenes, a class emerging two-dimensional transition metal carbonitrides/nitrides, metallic conductivity, specific surface area, good hydrophilicity, chemical tunability, showing great potential as electrode material MSCs. this paper, recent progress, focused on MXene-based, stretchable with fiber-shaped, planar configuration, is systematically summarized. Moreover, key challenges prospects practical application discussed, which critical further them.