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Batteries

Published on June 19th, 2014 | by Christopher DeMorro

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Toyota Researching Solid State Batteries As Next Step For EVs

June 19th, 2014 by  


Solid-State-Battery1

While Toyota might be betting big on hydrogen fuel cell vehicles, they haven’t ceased their research into electric car batteries either. In the long term, Toyota sees lithium-air batteries as the solution to EV range anxiety, but in the interim, solid-state lithium-ion batteries could be a stepping stone towards longer-range batteries.

Charged EVs reports that Toyota has already developed a prototype solid-state battery with an energy density of 400 Wh/L, which is less than half the density of lithium-air batteries, but still better than current lithium-ion batteries. Solid-state batteries also do away with the liquid chemical solution batteries currently rely on, replacing them with a solid electrolyte between the cathode and anode.

The design also allows for battery packs that eliminate the space between individual cells, packing more power into a smaller package. These solid state batteries are also supposed to have a longer lifespan, which means less concern about the longevity of electric drivetrains.

So far though, Toyota has only installed a solid-state lithium-ion battery on an electric scooter, though they say by 2020 these batteries could be ready for the road. Meanwhile, lithium-air batteries are might not be ready until 2030 or later, making this a natural stepping stone between two emergent technologies. 
 


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About the Author

A writer and gearhead who loves all things automotive, from hybrids to HEMIs, can be found wrenching or writing- or else, he's running, because he's one of those crazy people who gets enjoyment from running insane distances.



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