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Journal article
Capacitive Energy Storage from - 50o to 100o Using an Ionic Liquid Electrolyte
The journal of physical chemistry letters, v 2(19)
01 Jan 2011
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Relying on redox reactions, most batteries are limited in their ability to operate at very low or very high temperatures. While performance of electrochemical capacitors is less dependent on the temperature, present-day devices still cannot cover the entire range needed for automotive and electronics applications under a variety of environmental conditions. We show that the right combination of the exohedral nanostructured carbon (nanotubes and onions) electrode and a eutectic mixture of ionic liquids can dramatically extend the temperature range of electrical energy storage, thus defying the conventional wisdom that ionic liquids can only be used as electrolytes above room temperature. We demonstrate electrical double layer capacitors able to operate from 50 to 100 C over a wide voltage window (up to 3.7 V) and at very high charge/discharge rates of up to 20 V/s.
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Details
- Title
- Capacitive Energy Storage from - 50o to 100o Using an Ionic Liquid Electrolyte
- Creators
- Rongying Lin - Universite Paul Sabatier, Toulouse Cedex, FrancePierre-Louis Taberna - Universite Paul Sabatier, Toulouse Cedex, FranceSebastien Santini - SOLVIONIC Company, Toulouse, FranceVolker Presser - ORNLCarlos R Perez - Drexel UniversityFrancois Malbosc - SOLVIONIC Company, Toulouse, FranceNalin L Rupesinghe - AIXTRON, Cambridge, UKKenneth B. K Teo - AIXTRON, Cambridge, UKYury G Gogotsi - Drexel UniversityPatrice Simon - Universite Paul Sabatier, Toulouse Cedex, France
- Publication Details
- The journal of physical chemistry letters, v 2(19)
- Publisher
- American Chemical Society; Washington, DC
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000296893500004
- Other Identifier
- 991014969890904721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Atomic, Molecular & Chemical