Toyota is working on an electric car powered by a solid state battery that significantly increases driving range and reduces charging time. Toyota aims to begin sales of solid battery electric cars in 2022. “We want our electric cars to go 500 km on a single charge. And for this, we want rechargeable batteries that can generate 800 to 1000 watt-hours per liter.” That would be 3x the energy density of today’s best Li-ion batteries.

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