Electrodeposition of α-MnO₂/γ-MnO₂ on Carbon Nanotube for Yarn Supercapacitor.

ABSTRACT: Yarn supercapacitors have attracted renewed interest as promising energy storage for wearable devices due to their lightweight, long cycling lifetime and excellent weavability. There has been much effort to fabricate high performance yarn supercapacitor by depositing pseudo-capacitive materials on the outer surface of the carbon fibers. However, a key challenge still remains to achieve high capacitance and high mass loading without sacrificing the cycling stability. Herein, we perform a phase-controlled of MnO₂ at various deposition temperatures with ultrahigh mass loading of 11 mg/cm² on a MWNT sheets and fabricate it to yarn structure to achieve high capacitance without decreasing in the electrochemical performance. The structure of optimized sample (MnO₂

SUBMITTER: Jeong JH 

PROVIDER: S-EPMC6677808 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature