Solid-state batteries still aren’t ready, but gels are

This is The Stepback, a weekly newsletter breaking down one essential story from the tech world. For more on e-bikes, power stations, and how to work anywhere, follow Thomas Ricker. The Stepback arrives in our subscribers' inboxes at 8AM ET. Opt in for The Stepback here. How it started Lithium-ion batteries are everywhere as we enter the second quarter of the 21st century, and that's a problem. From exploding e-bikes in stairwells to lithium-ion power banks combusting midflight, the volatile nat