Toyota has never been a big fan of lithium ion batteries, and has a plan in place to replace them with solid-state batteries that are three-to-four times more powerful. Toyota will commercialize solid-state batteries around 2020 and lithium air batteries – which offer a fivefold increase for the same weight – could follow several years later, said Shigeki Suzuki, managing officer for material engineering. Suzuki didn't offer details on a rollout plan or vehicle volumes.
Battery breakthroughs seem to pop up almost every day. There's always a new idea, different material or unique design that makes the battery better. Some manufacturers make outlandish claims that can't be true while other companies string us out for years awaiting amazing products. This time around, Hitachi makes a bold claim for its breakthrough-tech, but it's believable and has already been put through preliminary tests.