Realizing high performance flexible supercapacitors by electrode modification.

ABSTRACT: It is well known that the structure of an electrode material seriously affects its electrochemical performance. In this study, we prepare hybrid structured NiCo₂S₄@PPy nanoarchitectures by a hydrothermal method and subsequent electrodeposition process. The specific capacitance of the obtained sample is 1733.23 C g^-1 at 1 A g^-1. The assembled asymmetric device presents an energy density of 59.59 W h kg^-1 at 1404.04 W kg^-1. The excellent electrochemical performance can be attributed to the synergistic effect between the high theoretical specific capacitance of the NiCo₂S₄ sheets and the superior cycling stability of the PPy film. The device also shows an outstanding mechanical flexibility at different ben

SUBMITTER: Xia T 

PROVIDER: S-EPMC9044427 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature