tailieunhanh - Advanced bipolar lead±acid battery for hybrid electric vehicles

A large size 80 V bipolar lead acid battery was constructed and tested successfully with a drive cycle especially developed for a HEV. The bipolar battery was made using the bipolar plate developed at TNO and an optimised paste developed by Centurion. An empirical model was derived for calculating the Ragone plot from the results from a small size 12 V bipolar lead±acid battery. | ELSEVIER Journal of Power Sources 95 2001 68-78 Advanced bipolar lead-acid battery for hybrid electric vehicles Michel Saakesa Christian Kleijnena Dick Schmala Peter ten Haveb MNO-Energy Environment and Process Innovation Laan van Westenenk 501 P O. Box 342 7300 AH Apeldoorn The Netherlands bCenturion Accumulatoren BV Molensingel 17 5912 AC Venlo The Netherlands Abstract A large size 80 V bipolar lead acid battery was constructed and tested successfully with a drive cycle especially developed for a HEV. The bipolar battery was made using the bipolar plate developed at TNO and an optimised paste developed by Centurion. An empirical model was derived for calculating the Ragone plot from the results from a small size 12 V bipolar lead-acid battery. This resulted in a specific power of 340 W kg for the 80 V module. The Ragone plot was calculated at t 5 and t 10 s after the discharge started for current densities varying from to A cm2. A further development of the bipolar lead-acid battery will result in a specific power of 500 W kg or more. From the economic analysis we estimate that the price of this high power battery will be in the order of 500 US kWh. This price is substantially lower than for comparable high power battery systems. This makes it an acceptable candidate future for HEV. 2001 Elsevier Science . All rights reserved. Keywords Lead-acid Bipolar Hybrid electric Vehicles Batteries 1. Introduction The on-going competition of more fuel economic cars has led to the introduction of the first hybrid electric vehicles HEV for example Toyota Prius and Honda Insight . These very fuel economic cars make use of a high power battery which stores the energy during braking and delivers the power for acceleration. This battery does not need to be charged separately since it is charged during driving. Recently Honda s Insight has set a new fuel economy record of 103 miles per gallon. 1 The battery packs sometimes referred as power packs are high power nickel

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