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Rapidly Charging Battery Systems

[+] Author Affiliations
Lennon Rodgers, Radu Gogoana, Mike Nawrot

Massachusetts Institute of Technology, Cambridge, MA

Paul Karplus

Stanford University, Palo Alto, CA

Paper No. DETC2010-29226, pp. 265-273; 9 pages
doi:10.1115/DETC2010-29226
From:
  • ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 4: 12th International Conference on Advanced Vehicle and Tire Technologies; 4th International Conference on Micro- and Nanosystems
  • Montreal, Quebec, Canada, August 15–18, 2010
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4412-0 | eISBN: 978-0-7918-3881-5
  • Copyright © 2010 by ASME

abstract

For rapidly charging battery systems to be fully realized, there must be [i] a cell chemistry with an adequate energy density that accepts high power charging without overheating and accelerated degradation, [ii] electricity sources that can supply the necessary charging power, [iii] battery pack designs that can handle the large charging currents while not drastically decreasing the mass and volumetric energy densities, and [iv] high power chargers. This study first explores the feasibility of these elements, and presents a particular design that was demonstrated on an electric motorcycle. The final system consists of four battery modules, totaling 1.6 kWatt-hours, a 10 kWatt charger, and an integrated circuit-based Battery Management System. A single module was rapidly charged to 90% capacity in 15 minutes, and all four modules connected in series were rapidly charged to 40% capacity. Future tests will rapidly charge the 4 modules to >90% capacity.

Copyright © 2010 by ASME
Topics: Batteries

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