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Improved Battery Charging in an Ultracapacitor - Lead Acid Battery Hybrid Energy Storage System for Mild Hybrid Electric Vehicles
Technical Paper
2006-01-1123
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Recent announcements [1] of competitive pricing in the ultracapacitor industry indicate that the automotive industry should consider the use of these devices in conjunction with lead acid batteries for Hybrid Electric Vehicles (HEVs). Although ultracapacitors are becoming cost competitive with NiMH batteries, the technology is not yet capable of replacing the battery alone. However, the combination of an inexpensive lead acid battery and an ultracapacitor may indeed become competitive with the NiMH in performance and cost. Although lead acids have a lower energy density, their main problem for HEV usage has been the issue of sulfation during partial-state-of-charge operation. However, in this new system the lead acid battery can be maintained close to 100% state of charge to reduce sulfation and thus lengthen the lifetime of the battery. Two different methods for charging the battery are also shown along with experimental results.
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Stienecker, A., Flute, M., and Stuart, T., "Improved Battery Charging in an Ultracapacitor - Lead Acid Battery Hybrid Energy Storage System for Mild Hybrid Electric Vehicles," SAE Technical Paper 2006-01-1123, 2006, https://doi.org/10.4271/2006-01-1123.Also In
References
- Maxwell Technologies Press Release “Maxwell Technologies' Ultracapacitor Technology Breakthrough Powers New Family of Higher Performance, Longer-Life Products,” June 7 2005
- Ashtiani C. Stuart T. “An Energy Storage System Using an Ultracapacitor with a Switched Battery,” Nov. 10 2004
- Stienecker Adam “An Ultracapacitor - Battery Energy Storage System for Hybrid Electric Vehicles,” The University of Toledo July 2005
- Stienecker A. Stuart T. Ashtiani C. “An ultracapacitor circuit for reducing sulfation in lead acid batteries for mild hybrid electric vehicles,” J. Power Sources
- Stienecker A. Stuart T. Ashtiani C. “A Combined Ultracapacitor - Lead Acid Battery Energy Storage System for Mild Hybrid Electric Vehicles,” IEEE VPP Conf. Chicago, IL, USA September 8th 2005
- Stuart T. Ashtiani C. “Circuit with a Switch for Charging a Battery in a Battery Capacitor Circuit,” Oct. 13 2004
- Flute M. “A Sulfation Reduction System for Lead Acid Batteries in Hybrid Electric Vehicles,” The University of Toledo July 2005