The electrochemical performance of phenol-formaldehyde based activated carbon electrodes for lithium/oxygen batteries

G. O. Shitta-Bey, M. Mirzaeian, P. J. Halla

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Here we demonstrate the use of polymer derived activated carbons as the potential electrode material for Li/O2 batteries. The activated carbons were synthesized by sol-gel polycondensation of low cost phenol and formaldehyde followed by carbonization at 1050°C in an inert atmosphere and activation under CO2 to different degrees of burn off. Galvanostatic charge/discharge measurements performed on the activated carbon based electrodes show that discharge capacity increases with mesopore volume, with the highest discharge capacity of 1852 mAh/g obtained for the carbon having the highest mesopore volume of 1.8717 cm3/g. Galvanostatic rate capability tests show that discharge capacity of the cell decreases with increasing discharge rates significantly.
Original languageEnglish
Pages (from-to)A315-A320
Number of pages6
JournalJournal of the Electrochemical Society
Volume159
Issue number3
DOIs
Publication statusPublished - 10 Jan 2012

Keywords

  • aerogels
  • density
  • porosity
  • supercapacitors
  • gels
  • liquid
  • catalyst
  • energy storage
  • LI-air batteries

Fingerprint Dive into the research topics of 'The electrochemical performance of phenol-formaldehyde based activated carbon electrodes for lithium/oxygen batteries'. Together they form a unique fingerprint.

  • Cite this