Journal article
On-chip micro-supercapacitors for operation in a wide temperature range
Electrochemistry communications, v 36, pp 53-56
Nov 2013
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Onion-like carbon (OLC) based micro-supercapacitor electrodes prepared by electrophoretic deposition (EPD) were combined with a eutectic mixture of ionic liquids (IL), producing a micro-supercapacitor which is able to function from −50 °C to 80 °C. This device was electrochemically characterized by cyclic voltammetry and electrochemical impedance spectroscopy at different scan rates and different temperatures. At 20 °C, a capacitance of 1.1 mF.cm−2 per footprint area of device at 200 mV.s−1 within 3.7 V was measured, hence a specific energy of 15 mJ.cm−2 and a specific power of 240 mW.cm−2. At−50 °C, 76% of the capacitance wasmaintained at 10 mV.s−1 within 3.7 V. By integrating with IL, this micro-supercapacitor can be potentially used in portable electronic devices that are required to work under temperature extremes.
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Details
- Title
- On-chip micro-supercapacitors for operation in a wide temperature range
- Creators
- Peihua Huang - Équipe Intégration de Systèmes de Gestion de l'ÉnergieDavid Pech - Équipe Intégration de Systèmes de Gestion de l'ÉnergieRongying Lin - Centre interuniversitaire de recherche et d'ingenierie des matériauxJohn K McDonough - Drexel UniversityMagali Brunet - Équipe Intégration de Systèmes de Gestion de l'ÉnergiePierre-Louis Taberna - Centre interuniversitaire de recherche et d'ingenierie des matériauxYury Gogotsi - Drexel UniversityPatrice Simon - Centre interuniversitaire de recherche et d'ingenierie des matériaux
- Publication Details
- Electrochemistry communications, v 36, pp 53-56
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000328927600014
- Scopus ID
- 2-s2.0-84885041585
- Other Identifier
- 991014970045704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Electrochemistry