video: In this movie an LSG electrochemical capacitor is packaged in the ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIMBF4). After charging the electrochemical capacitor at a constant potential of 3.5 V, it is used to light up a red light emitting diode (with a minimum operating potential of 2 V) for about 24 minutes. This image relates to a paper that appeared in the March 16, 2012, issue of Science, published by AAAS. The paper, by M.F. El-Kady at University of California, Los Angeles (UCLA) in Los Angeles, Calif., and colleagues was titled, "Laser Scribing of High-Performance and Flexible Graphene-Based Electrochemical Capacitors." view more
Credit: Video © <i>Science</i>, /AAAS