Enhanced Performance in Flexible Binder-free SWCNT Membrane EDLC

ORAL

Abstract

We present results on an aqueous symmetric double layer electrochemical capacitor (EDLC) constructed with flexible binder-free single wall carbon (SWCNTs) membrane as electrodes. The capacitors were cycled from 0 to 1V @ 10 A/g for 10,000 cycles with 99.9{\%} coulombic efficiency and 94{\%} energy efficiency, and 100{\%} depth of discharge. The power performance of the aqueous symmetric SWCNTs membrane capacitor is almost 100 --1000 times better than commercial non-aqueous EDLC capacitors.

*This work is supported by the Pennsylvania State, Altoona College Undergraduate Research Program and the Pennsylvania State Materials Research Institute at University Park, PA

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Authors

  • Danhao Ma

    • The Pennsylvania State University

  • Pralav Shetty

    • The Pennsylvania State University

  • Kofi Adu

    • The Pennsylvania State University, Altoona College

  • Ramakrishnan Rajagopalan

    • The Pennsylvania State University