Fixture-free omnidirectional prestretching fabrication and integration of crumpled in-plane micro-supercapacitors.

ABSTRACT: Multidimensional folded structures with elasticity could provide spatial charge storage capability and shape adaptability for micro-supercapacitors (MSCs). Here, highly crumpled in-plane MSCs with superior conformality are fabricated in situ and integrated by a fixture-free omnidirectional elastic contraction strategy. Using carbon nanotube microelectrodes, a single crumpled MSC holds an ultrahigh volumetric capacitance of 9.3 F cm^-3, and its total areal capacitance is 45 times greater than the initial state. Experimental and theoretical simulation methods indicate that strain-induced improvements of adsorption energy and conductance for crumpled microelectrodes are responsible for the prominent enhancement of electrochemical performance. With outstanding morphological randomici

SUBMITTER: Wang Y 

PROVIDER: S-EPMC9140961 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature