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Energies 2011, 4(5), 741-757; doi:10.3390/en4050741

Novel Field Test Equipment for Lithium-Ion Batteries in Hybrid Electrical Vehicle Applications

1,2,* , 1
1 Scania CV AB, SE-151 87, Sodertalje, Sweden 2 School of Chemical Science and Engineering, Department of Chemical Engineering and Technology, Applied Electrochemistry, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden
* Author to whom correspondence should be addressed.
Received: 23 February 2011 / Revised: 11 March 2011 / Accepted: 25 April 2011 / Published: 29 April 2011
(This article belongs to the Special Issue Hybrid Vehicles)
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Lifetime testing of batteries for hybrid-electrical vehicles (HEV) is usually performed in the lab, either at the cell, module or battery pack level. Complementary field tests of battery packs in vehicles are also often performed. There are, however, difficulties related to field testing of battery-packs. Some examples are cost issues and the complexity of continuously collecting battery performance data, such as capacity fade and impedance increase. In this paper, a novel field test equipment designed primarily for lithium-ion battery cell testing is presented. This equipment is intended to be used on conventional vehicles, not hybrid vehicles, as a cheaper and faster field testing method for batteries, compared to full scale HEV testing. The equipment emulates an HEV environment for the tested battery cell by using real time vehicle sensor information and the existing starter battery as load and source. In addition to the emulated battery cycling, periodical capacity and pulse testing capability are implemented as well. This paper begins with presenting some background information about hybrid electrical vehicles and describing the limitations with today’s HEV battery testing. Furthermore, the functionality of the test equipment is described in detail and, finally, results from verification of the equipment are presented and discussed.
Keywords: battery testing; hybrid electrical vehicle (HEV); lithium ion battery battery testing; hybrid electrical vehicle (HEV); lithium ion battery
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Svens, P.; Lindstrom, J.; Gelin, O.; Behm, M.; Lindbergh, G. Novel Field Test Equipment for Lithium-Ion Batteries in Hybrid Electrical Vehicle Applications. Energies 2011, 4, 741-757.

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