Jul 27, 2017

Toyota claims a leap that would vastly increase electric-car range

Lazaro Gamio / Axios

In an unusual statement, Toyota says it is nearing a breakthrough in a type of lithium-ion battery system that has vexed researchers for decades, and that it will unveil a family of electric cars with a jump in currently available range in the early 2020s.

Why it matters: Given the high stakes and risk of embarrassment if something goes wrong, Japanese companies virtually never flag a big tech breakthrough before it is actually produced and delivered to the market. Hence, Toyota's comparatively specific announcement suggests it is reasonably confident that it really has mastered a new battery technology, said Venkat Viswanathan, a professor at Carnegie Mellon University.

Toyota says its battery is solid state, which is what has piqued the interest of the battery community:

  • If Toyota really has figured out solid state, that would allow the company sometime in the future to make a second big breakthrough — to swap in an anode made of ultra-energetic lithium metal, a substance that researchers have tried without success to get safely into lithium-ion batteries since the early 1990s.
  • 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.

Toyota declined to say whether it's using a lithium metal anode. But solid state is extremely expensive to manufacture, costing hundreds of dollars per square meter, versus the $10 price needed if battery costs are to drop low enough for electric cars to challenge combustion head to head.

Hence, Viswanathan told Axios, 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 300 miles on a charge, he said. As a comparison, the new Chevy Bolt goes 238 miles without recharging.

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Coronavirus dashboard

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  1. Global: Total confirmed cases as of 7 p.m. ET: 1,094,068 — Total deaths: 58,773 — Total recoveries: 225,519Map.
  2. U.S.: Total confirmed cases as of 6 p.m. ET: 273,880 — Total deaths: 7,077 — Total recoveries: 9,521Map.
  3. Public health latest: The CDC is recommending Americans wear face coverings in public to help stop the spread of the coronavirus.
  4. 2020 latest: Wisconsin's governor called for a last-minute primary election delay. "I think a lot of people cheat with mail-in voting," President Trump said on the 2020 election, as more states hold primaries by mail.
  5. Business updates: America's small business bailout is off to a bad start. The DOT is urging airlines to refund passengers due to canceled or rescheduled flights, but won't take action against airlines that provide vouchers or credits.
  6. Oil latest: The amount of gas American drivers are consuming dropped to levels not seen in more than 25 years, government data shows. Trump is calling on the Energy Department to find more places to store oil.
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Government will cover uninsured patients' coronavirus treatment

Azar at Friday's briefing. Photo: Win McNamee/Getty Images

The federal government will cover the costs of coronavirus treatment for the uninsured, Health and Human Services Secretary Alex Azar said at a White House briefing Friday.

How it works: The money will come from a $100 billion pot set aside for the health care industry in the most recent stimulus bill. Providers will be paid the same rates they get for treating Medicare patients, and as a condition of those payments, they won't be allowed to bill patients for care that isn't covered.

More states issue stay-at-home orders as coronavirus crisis escalates

Data: Axios reporting; Map: Danielle Alberti/Axios

Alabama Gov. Kay Ivey issued a stay-at-home order on Friday as the novel coronavirus pandemic persists. The order goes into effect Saturday at 5 p.m. and will remain in place through April 30. Missouri Gov. Mike Parson also issued a statewide social distancing order on Friday.

The big picture: In a matter of weeks, the number of states that issued orders nearly quadrupled, affecting almost 300 million Americans.

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