Johnson Controls finds another battery-making partner

One year after ending its relationship with a French battery maker, Milwaukee-based Johnson Controls has announced that it will partner with PolyPlus Battery Corp., according to a report in the Milwaukee Journal Sentinel.

Based in Berkeley, Calif, PolyPlus recently secured $8.99 million from the U.S. Department of Energy to help scale up manufacturing of its lighter, high-energy lithium batteries.

In 2011, Johnson Controls ended its relationship with the battery developer Saft. In PolyPlus, the Milwaukee company is partnering with a battery maker whose technology purportedly enables cars to travel 500 miles on one charge.

The company is developing technology that was spun out of Lawrence Livermore National Laboratory. Its target markets include the military and unmanned underwater vehicles.