Development of Cycle Life Test Profiles of Lithium-ion Batteries for Plug-in Hybrid Electric Vehicles



Although life of lithium-ion batteries for electrically propelled road vehicles must be improved to promote the diffusion of the vehicles, currently there is no testing standard for those batteries. Therefore in this study, formulation method of cycle life test profile of lithium-ion batteries for plug-in hybrid electric vehicles was studied. As a result, following prospects looked brighter; Simplified "L" profile realize equivalent battery load with that of actual vehicle driving by conforming (1) peak, (2) energy, (3) rest-time rate and (4) joule heat of cycle life test profile to that of complicated charge-discharge wave on actual vehicle.

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