Toyota believes in offering its customers a range of vehicle types and driving styles. It is currently rolling out a series of lithium-ion electric car batteries to meet this diverse need. However, the motor manufacturer is also aware of the potential of solid-state batteries to change the rules of the game. We peer into the future of the Toyota solid-state battery to see what we can learn.
Toyota’s Solid-State Battery Project
The Japanese motor manufacturer published a road map into the future in September 2023 (see link below). The company has been forging ahead since then, although it has understandably been shy on the details.
What we do know is that Toyota claims a breakthrough that gives its solid-state batteries a longer lifespan. The company suggests the following benefits will flow when it implements this discovery:
- A solid electrolyte that allows faster movement of ions.
- Greater tolerance of high voltages and temperatures.
- A battery suitable for rapid charging and discharging.
- But also able to ‘deliver its power in a smaller form’.
Benefits for Battery Electric Vehicles
Company strategists are confident that the Toyota solid-state battery strategy will be ready for market by 2027 / 2028. They will be aware that others are following in their tracks, but are sufficiently confident to predict the following:
- A 900 mile driving range, compared to the ‘performance’ lithium-ion 750 miles.
- Fast charging to 80% in 10 minutes, compared to the ‘performance’ 20 minutes.
Lithium-ion batteries use a liquid, or a gel electrolyte for ion transfer, that can make their high power unstable under out-of-spec circumstances. Solid-state batteries on the other hand use a ceramic, or a solid polymer alternative that does not have this drawback.
The automotive industry has generally shied away from either option, on account of energy and battery density, durability, material costs, sensitivity, and stability according to Wikipedia. But Toyota had decided to step out of line, and move boldly forward confidently.
More Information
Range Paradigm Shifts With Solid-State
Toyota Lithium-Ion Battery Strategy
