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Stanford scientists spark new interest in the century-old Edison battery
Date:6/26/2012

ve to charge something very quickly," he said.

"It's definitely scalable," Wang said. "Nickel, iron and carbon are relatively inexpensive. And the electrolyte is just water with potassium hydroxide, which is also very cheap and safe. It won't blow up in a car."

The prototype battery has one key drawback the ability to hold a charge over time. "It doesn't have the charge-discharge cycling stability that we would like," Dai said. "Right now it decays by about 20 percent over 800 cycles. That's about the same as a lithium-ion battery. But our battery is really fast, so we'd be using it more often. Ideally, we don't want it to decay at all.

"The use of strongly coupled nanomaterials represents a very exciting approach to making electrodes," he said. "It's different from traditional methods, where you simply mix materials together. I think Thomas Edison would be happy to see this progress."


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Contact: Mark Shwartz
650-723-9296
Stanford University
Source:Eurekalert  

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