Making a better battery

You probably grew up thinking that batteries are those things we put in flashlights, or maybe the rechargeable ones that come in phones and laptops.

Now it’s time to install batteries into the biggest machine of all: The United States’ electrical grid — that huge, aging, complex network of power plants and wires that bring power to our homes and buildings.

CBS Sunday Morning

Full Story: http://www.cbsnews.com/news/making-a-better-battery/