Printable magnesium ion quasi-solid-state asymmetric supercapacitors for flexible solar-charging integrated units.

ABSTRACT: Wearable and portable self-powered units have stimulated considerable attention in both the scientific and technological realms. However, their innovative development is still limited by inefficient bulky connections between functional modules, incompatible energy storage systems with poor cycling stability, and real safety concerns. Herein, we demonstrate a flexible solar-charging integrated unit based on the design of printed magnesium ion aqueous asymmetric supercapacitors. This power unit exhibits excellent mechanical robustness, high photo-charging cycling stability (98.7% capacitance retention after 100 cycles), excellent overall energy conversion and storage efficiency (η_overall = 17.57%), and outstanding input current tolerance. In addition, the Mg ion quasi-solid-state

SUBMITTER: Tian Z 

PROVIDER: S-EPMC6820525 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature