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Toyota: solid-state batteries coming in 2020, 3-4 times better than li-ion – AutoblogGreen

More 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.

As for Toyota’s limited interest in lithium ion batteries, they are present in theToyota RAV4 EV (pictured) and theToyota Prius V, but nickel metal hydride batteries have been the mainstay in the automaker’s hybrid lineup for years. Solid state and lithium air batteries have advantages over li-ion and NiMH batteries. They’re smaller and use less expensive materials than li-ion, such as rare earth metals.

There are obvious benefits to solid-state batteries. The liquid electrolyte found in li-ion batteries is replaced with a solid material (hence the name), and solid-state packs are more compact and stable, allowing a higher voltage to be packed into a smaller space, Suzuki said. Toyota has been working on solid-state batteries for years and might be taking the leadover competitors such as Sakti3 andPlanar Energy in the plug-in vehicle market.http://m.green.autoblog.com/2013/03/12/toyota-solid-state-batteries-in-2020-better-than-lithium/

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