Perspective on ultracapacitors for electric vehicles

Recent advances in performance of chemical double layer capacitors (DLC) with aqueous and non-aqueous electrolytes have made it possible to seriously consider them for commercialization. Non-aqueous (organic) carbon based laboratory monopolar devices have recently met key U.S. Department of Energy (...

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Bibliographic Details
Published in:IEEE aerospace and electronic systems magazine 1995-08, Vol.10 (8), p.26-31
Main Authors: Dowgiallo, E.J., Hardin, J.E.
Format: Magazinearticle
Language:English
Subjects:
Batteries
Capacitors
Conducting materials
Costs
Electric vehicles
Laboratories
Life testing
Power engineering and energy
Supercapacitors
US Department of Energy
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Summary:Recent advances in performance of chemical double layer capacitors (DLC) with aqueous and non-aqueous electrolytes have made it possible to seriously consider them for commercialization. Non-aqueous (organic) carbon based laboratory monopolar devices have recently met key U.S. Department of Energy (DoE) mid-term specifications (> 5 WNkg, >500 W/kg and >100,000 life cycles) for load-leveling electric vehicles batteries. All DLC technologies currently under development by DoE are discussed. Each technology has distinct advantages and none are clear winners at this time. A study has been completed by the General Electric Company on the interface electronics needed to best utilize the energy of capacitors for load-leveling batteries. System costs are presented based on this study, several battery technologies, and capacitor projections.< >
ISSN:0885-8985
1557-959X
DOI:10.1109/62.406820