Mark Fields and Dieter Zetsche give boost to solid-state battery startup Factorial Energy

Some of the auto industry’s most experienced executives are supporting a Boston-area startup developing solid-state battery technology for use in electric vehicles.

After years of behind-the-scenes work, Factorial Energy was spun into its own company earlier this year. It made its first public pronouncements Tuesday. Foremost among them: It named Joe Taylor, former chairman and CEO of Panasonic Corp. North America, as its executive chairman.

A number of other automotive veterans are filling key roles. Dieter Zetsche joins Factorial’s advisory board. Former Ford CEO Mark Fields and Harry Wilson, former senior adviser to President Obama’s auto industry task force during the Great Recession, are among investors.

For an industry charging toward an electric future, the allure of solid-state batteries is strong. They could be a springboard toward longer ranges, faster recharging time and enhanced safety.

Factorial Energy says its 40 amp-hour battery cells can increase energy density by 20-50 percent compared with standard lithium-ion batteries used throughout the industry today.

“I think we’ve identified a true breakthrough, and there haven’t been any other solid-state batteries that work at room temperature at this size,” Siyu Huang, Factorial Energy’s CEO, told Automotive News. “We’ll not only demonstrate the scalability of the material, but the technology working at an EV-sized standard.”

Factorial is working with multiple automakers on solid-state batteries, she said, though the company is not yet disclosing those partners. The company intends to produce functional samples by early 2022 and be ready for mass production in 2026.

Underlying technology was honed at Cornell University, where a Ph.D. candidate, Alex Yu, wrote about a novel processing technique that could increase battery capacity using lithium-metal chemistry. Huang was studying at the same time, and quickly joined with Yu in creating Lionano Inc., a startup devoted to cathode material production. Factorial Energy was spun out earlier this year.

Huang says solid-state batteries provide a greater safety margin, because liquid-state batteries can ignite at much lower temperatures. Solid-state batteries, she says, could prevent higher numbers of car fires and thermal runaway conditions, the likes of which have concerned the National Transportation Safety Board.

“You see the safety has really been stretched today,” Huang said. “So that’s something that we, as a company, we wanted to change that status quo and deliver a safer, higher energy-density product to the market.”

Collectively, Factorial Energy’s initial funding round netted in excess of $40 million, according to the company. Along with Fields and Wilson, investment firms Gatemore Capital Management and Wave Equity Partners contributed.

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