Nov 8, 2011

Non-toxic Batteries made of salt, water last 10X longer | SmartPlanet

LOS ANGELES -  Jay Whitacre wants to change the world with batteries - and the recipe for change, he believes, is in everyday materials like salt and water.

Although he can geek out on complicated lectures on battery technology, last week at The Compass Summit in Los Angeles, Whitacre told me in much more simple terms about how his battery technology works. Using sodium ions instead of lithium, Whitacre’s batteries have been designed to store energy for the grid.

After spending two years figuring out the ideal chemistry for non-toxic batteries, Carnegie Mellon engineering professor Whitacre spun his technology into a startup company called Aquion Energy in January 2010. Pre-production of the sodium-ion batteries is expected this fall, and the production plant is on track to begin in 2013.

...“Electrical power is the only commodity sold in the world right now without any kind of warehousing. When you plug something into the wall, you immediately pull energy from a generation asset. It’s not stored anywhere. We store data, water, and gas. We do not store electricity. Historically, it’s just been too expensive,” Whitacre said.

“For the first time, renewable power sources are competitive with traditional, especially in developing countries,” Whitacre said. Lead acid batteries aren’t as good as the manufacture promised. Aquion’s batteries have a much longer life. “We believe we can last 5 to 10 times longer than lead acid at the same price point,” he said.