A seamlessly integrated device of micro-supercapacitor and wireless charging with ultrahigh energy density and capacitance.

ABSTRACT: Microdevice integrating energy storage with wireless charging could create opportunities for electronics design, such as moveable charging. Herein, we report seamlessly integrated wireless charging micro-supercapacitors by taking advantage of a designed highly consistent material system that both wireless coils and electrodes are of the graphite paper. The transferring power efficiency of the wireless charging is 52.8%. Benefitting from unique circuit structure, the intact device displays low resistance and excellent voltage tolerability with a capacitance of 454.1 mF cm^-2, superior to state-of-the-art conventional planar micro-supercapacitors. Besides, a record high energy density of 463.1 μWh cm^-2 exceeds the existing metal ion hybrid micro-supercapacitors and even

SUBMITTER: Gao C 

PROVIDER: S-EPMC8113435 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature