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Lead-Acid Batteries Seek New Role in Hybrids, Plug-Ins

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Doug_G

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Apr 2, 2010
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Design News - Captain Hybrid - Lead-Acid Batteries Seek New Role in Hybrids, Plug-Ins

Using a souped-up version of a chemistry that's been around since the days of Edison, a Detroit-area startup wants to slash the costs of batteries for hybrids and plug-in cars.

Energy Power Systems (EPS) says it has boosted the power density and cycle life of the venerable lead-acid battery, without touching the low costs that made it desirable in the first place. With the new technology, batteries for mild hybrids and plug-in cars could cost less than half of what they do today, the company says.

... That's why his company has lifted the power density of lead-acid from about 200 W/kg to 1,600 W/kg. Cycle life has similarly been improved by a factor of five.