With a giant battery, we'd be able to address the problem of intermittency that prevents wind and solar from contributing to the grid in the same way that coal and gas and nuclear do today.

If you want to make something dirt cheap, make it out of dirt–preferably dirt that is locally sourced.

In a battery, I strive to maximize electrical potential. When mentoring, I strive to maximize human potential.

The students who work with me believe in science in service of society, not science in service of career building.

If we're going to get this country out of its current energy situation, we can't just conserve our way out. We can't just drill our way out. We can't bomb our way out. We're going to do it the old-fashioned, American way. We're going to invent our way out, working together.

People would like better batteries but they are wary of making investments. What is required is both a technology push and a market pull.

Want to know the best thing about being a professor? Colored chalk.