February 1, 2019, 11:06 p.m. by Bryan Nelson

Sodium ion batteries are cheaper and charge faster, but there are a few hurdles to their rise.

December 31, 2017, 4:59 p.m. by Sidney Stevens

Electric carmakers need more cobalt for their lithium-ion batteries. Tiny Cobalt, Ontario, aims to become a sizable supplier.

November 17, 2017, 12:11 p.m. by Ben Bolton

The semi can travel 500 miles between charges.

June 29, 2017, 1:31 p.m. by Michael d'Estries

The Internet's favorite undersea autonomous vehicle dips a toe in the water before an unprecedented 1,500-mile Arctic crossing.

April 1, 2016, 3:52 p.m. by Jim Motavalli

The deal: 215 miles of range, zero to 60 under 6 seconds, $35,000 — but read the fine print.

October 2, 2015, 8:05 a.m. by John Donovan

This gorgeous salt plain may be the key to keeping our electronics charged up.

August 10, 2015, 1:38 p.m. by Lloyd Alter

This looks like fun, and useful too. (But I'm not getting one for my mom.)

July 15, 2015, 9:16 a.m. by Jim Motavalli

Local Motors uses tech, crowdsourcing and design contests to create tomorrow's autos today.

February 4, 2015, 8 a.m. by Matt Hickman

Incorporating 4 percent post-consumer recycled batteries, the EcoAdvanced line really keeps on going and going ...

January 31, 2015, 10:50 a.m. by Sami Grover

Renewable energy is growing rapidly. But recent developments in storage could prove to be a game changer.