Battery testing at the Advanced Photon Source

Just returned from some battery testing at the Advanced Photon Source near Chicago. Here Snehal models one of the new batteries we’ve developed for grid-scale electrical storage.

Snehal battery

And here’s a couple of them sitting in the path of an X-ray “white beam” that will give us diffraction data while they cycle. This way you can track the mechanism of what’s happening during battery cycling … since the cycling is ultimately an electrochemical transformation.

APS battery testing

Now we’re going through a full set of data, getting to the bottom of our underlying mechanisms. By the way it snowed quite a bit while we were there. Here’s the lovely winter view from the guest house.

APS snow Feb 2016