Tailoring electrochemical capacitor energy storage using direct write dispenser printing

Christine C. Ho, Daniel Artemus Steingart, James W. Evans, Paul K. Wright

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

22 Scopus citations

Abstract

We present a direct-write, dispenser printing method for additively fabricating solid-state, thick film carbon supercapacitors directly onto any substrate in room temperature, ambient conditions. This proves to be a flexible method for integrating electrochemical energy storage components onto a device and tailoring its performance to a specific application's demands. The capacitors are made using MCMB (mesocarbon microbead) electrode material in a PVDF (polyvinylidene fluoride) gel binder. The gel is able to encapsulate BMIM+BF4- (l-butyl-3-methylimidazolium tetrafluoroborate) ionic liquid electrolyte, and effectively forms solid-state films. From both galvanostatic and electrochemical impedance measurements, printed capacitors exhibited an average capacitance of 0.50 mF/cm2. These tools were also used to evaluate the long-term cycle life of the capacitors, their power and energy density relationship, and compare transport properties.

Original languageEnglish (US)
Title of host publicationECS Transactions - Electrochemical Capacitor and Hybrid Power Batteries 2008 - 214th ECS Meeting
Pages35-47
Number of pages13
Edition1
DOIs
StatePublished - 2008
EventElectrochemical Capacitor and Hybrid Power Batteries 2008 - 214th ECS Meeting - Honolulu, HI, United States
Duration: Oct 12 2008Oct 17 2008

Publication series

NameECS Transactions
Number1
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherElectrochemical Capacitor and Hybrid Power Batteries 2008 - 214th ECS Meeting
Country/TerritoryUnited States
CityHonolulu, HI
Period10/12/0810/17/08

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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