Solid State-ment: Toyota on verge of major EV Battery system breakthrough

Electric vehicles (EVs) available today, use lithium-ion batteries that need 20-30 minutes to recharge even with fast chargers and have a typical range of just 300-400 kilometers.

The new electric car platform Toyota is currently working on will use all-solid-state batteries, allowing it to be recharged in just a few minutes, sources say.

Toyota says it is on the verge of a breakthrough in a type of lithium-ion battery system that has eluded the industry for many years.

Looks like they are going to deliver alright.

Because of the risk of embarrassment if something were to go wrong, Japanese companies never announce a big breakthrough before it is actually produced and delivered to the market. So, Toyota’s specific announcement suggests it is reasonably confident that it has truly championed a new battery technology.

Toyota went on to clarify that its battery is solid state, which is what has piqued the interest of the battery community:
  • The trouble with lithium metal is its volatility — it can catch fire on contact with liquid electrolyte or even the air.
  • But solid state eliminates that problem because it has no liquid.

In a statement to Axios, Toyota said it will commercialize “sulfide system all-solid batteries” that it hopes will have increased durability and improve the range of electric vehicles in which they are installed.

Venkat Viswanathan, a professor at Carnegie Mellon University speaking to Axios also added that even if Toyota’s first-generation pure electrics do not start with lithium metal anodes, the company clearly is establishing a pathway to get there.

“You need more energy density to bring down the cost,” he said.

An electric car with a lithium metal anode would go about 20% further than current technology, or almost 480 kilometres on a charge, he said.

Just to help you know, the new Chevy Bolt goes 380 kilometres without recharging.

The Mahindra e2o plus offers a claimed normal range of between 95 to 120 kilometres on a single full charge.

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