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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.

Go deeper

Mark Meadows will stop cooperating with Jan. 6 panel, attorney says

Photo: Chris Kleponis/Polaris/Bloomberg via Getty Images

Former White House chief of staff Mark Meadows will no longer cooperate with the House select committee investigating the Jan. 6 Capitol insurrection, his attorney told Fox News Tuesday.

Why it matters: Meadows, who failed to appear before the panel last month, is believed to have insight into former President Trump's role in efforts to stop the certification of President Biden's election win.

Updated 4 hours ago - Economy & Business

The billionaire balloon

Data: World Inequality Report 2022; Chart: Axios Visuals

The super-rich are getting stupid rich: New data out today shows the share of global wealth held by the richest slice of humanity swelled by almost a full percentage point during the pandemic.

Driving the news: The top 0.01% of individuals now hold about 11% of the world's wealth, compared to just over 10% in 2020, according to the "World Inequality Report 2022," written by Lucas Chancel, Thomas Piketty, Emmanuel Saez and Gabriel Zucman.

Tina Reed, author of Vitals
4 hours ago - Health

Omicron gives a shot to boosters

Expand chart
Data: CDC; Chart: Will Chase/Axios

Vaccination rates have ticked higher since the discovery of the Omicron variant, CDC data shows.

By the numbers: The seven-day average for vaccinations in the U.S. reached about 1.8 million on Monday, up from an average of about 1.3 million a month ago.