Enhanced performance of symmetric double layer capacitor by flexible binder-free SWCNT membrane electrodes

Danhao Ma, James Kalupson, Pralav Shetty, Kofi Adu, Ramakrishnan Rajagopalan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present results on an aqueous symmetric double layer electrochemical capacitor (EDLC) constructed with a flexible binder-free single wall carbon (SWCNTs) membrane as electrodes. The capacitors were cycled from 0 to IV @ 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.

Original languageEnglish (US)
Title of host publicationCarbon Nanomaterials
PublisherMaterials Research Society
Pages63-68
Number of pages6
ISBN (Print)9781632660985
DOIs
StatePublished - 2013
Event2012 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 25 2012Nov 30 2012

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1505
ISSN (Print)0272-9172

Other

Other2012 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA
Period11/25/1211/30/12

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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