To meet the requirements associated with Idle–start–stop (ISS) vehicles, lead–acid battery manufacturers have employed various designs that have both advantages and disadvantages. Automobile manufacturers continue to strive to reduce vehicle emissions, to improve fuel economy and to meet government requirements, while simultaneously controlling costs. In this presentation, a review will be given of the various design options, together with evaluation of the penetration rate in the market, general design elements, and existing challenges and how they may be realized. As present ISS technology is just the first step in the electrification of the vehicle, comments will be offered with respect to ways whereby lead–acid batteries can support functions such as regenerative braking and drive assistance. Finally, the paper will close with an exploration of how developments associated with ISS operation may be applied to other battery markets served by lead–acid batteries.

J Kevin Whear
Daramic, LLC
Vice President Technology

Biography: J. Kevin Whear is Vice President Technology for Daramic LLC, which he joined 27 years ago after graduating from the University of Tulsa. He is guiding and directing customer technical support and new product development efforts world-wide. Kevin has numerous granted patents to his credit, and many published articles most notably on the subject of separator technology for lead–acid batteries.

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