▎ 摘　　要

The rapid development of wearable electronics has put forward a great demand for flexible microsupercapacitors (MSCs) that can work normally under extreme deformation, but its green, efficient and pollution-free manufacturing is still a daunting challenge. Here, natural cotton cloth is pre-carbonized as the precursor and coated with gelatin-mediated manganese (Mn) ion ink for CO2 laser scribing. A biobased laser-induced graphene/manganese oxide (LIG/MnOx) MSC is assembled on a cardboard substrate, showing an areal capacitance of 54.97 mF/cm(2) at a current density of 0.05 mA/cm(2) and an areal energy density of 7.63 mu Wh cm(-2) at a power density of 78.93 mu W cm(-2). These excellent electrochemical performances are attributed to the core-shell structure of LIG/MnOx which provides balanced pseudocapacitance and double-layer capacitance behaviors as well as the stable mechanical properties. Using a simple series-parallel electrode design combined with the kirigami cutting craftwork, a highly stretchable MSC with rated voltage of 60 V is assembled, which can simultaneously light up 20 LEDs for more than 30s during 0- 200% dynamic stretching process, providing a promising power platform for wearable electronics.