Explore the solid state vs lithium ion debate in this detailed battery technology comparison, highlighting differences in energy density, longevity, safety, and future energy storage potential.

The emergence of renewable energy like wind and solar as a viable alternative to oil, gas and other fossil fuels has raised critical questions about which form of power offers the best value today — a ...

When iron rusts, it swaps an electron for an oxygen molecule. Usually, that electron goes to waste. Form Energy’s batteries, which are the size of a washer-dryer set, take in oxygen to convert iron to ...

Mary Cunningham is a reporter for CBS MoneyWatch. She previously worked at "60 Minutes," CBSNews.com and CBS News 24/7 as part of the CBS News Associate Program. Senior Visual Data Journalist, Data ...