proprietary technology

2 charged with stealing battery manufacturing secrets from Texas-based EV giant

The technology allegedly stolen involves high-speed battery assembly lines that use a proprietary technology owned by Tesla. Photo courtesy of Tesla

Two men are accused of starting a business in China using battery manufacturing technology pilfered from Tesla and trying to sell the proprietary information, federal prosecutors in New York said Tuesday.

Klaus Pflugbeil, 58, a Canadian citizen who lives in Ningbo, China, was arrested Tuesday morning on Long Island, where he thought he was going to meet with businessmen to negotiate a sale price for the information, federal authorities said. Instead, the businessmen were undercover federal agents.

The other man named in the criminal complaint is Yilong Shao, 47, also of Ningbo. He remains at large. They are charged with conspiracy to transmit trade secrets, which carries up to 10 years in prison if convicted.

A lawyer for Pflugbeil did not immediately return phone and email messages seeking comment Tuesday night. Tesla also did not immediately return an email message.

The technology at issue involves high-speed battery assembly lines that use a proprietary technology owned by Tesla, maker of electric vehicles.

The two men worked at a Canadian company that developed the technology and was bought in 2019 by “a U.S.-based leading manufacturer of battery-powered electric vehicles and battery energy systems,” authorities said in the complaint. Tesla then was sole owner of the technology.

Prosecutors did not name either company. But in 2019, Tesla purchased Hibar Systems, a battery manufacturing company in Richmond Hill, Ontario. The deal was first reported by Electric Autonomy Canada.

"The defendants set up a company in China, blatantly stole trade secrets from an American company that are important to manufacturing electric vehicles, and which cost many millions of dollars in research and development, and sold products developed with the stolen trade secrets,” Breon Peace, U.S. attorney for the Eastern District of New York, said in a statement with officials with the Justice Department and FBI.

In mid-2020, Pflugbeil and Shao opened their business in China and expanded it to locations in Canada, Germany and Brazil, prosecutors said. The business makes the same battery assembly lines that Tesla uses with its proprietary information, and it markets itself as an alternative source for the assembly lines, authorities said.

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A View From HETI

A rendering of a Quaise Energy geothermal plant. Rendering via quaise.com

Houston-based Quaise Energy, a producer of utility-scale geothermal power, raised $134 million in a Series B round to advance its “superhot” geothermal power plant.

Climate-focused San Francisco-based investment firm Prelude Ventures led the round, with participation from JERA Co., Japan’s largest power generation company, and Idemitsu Kosan, one of Japan’s largest energy companies. Nearly all existing investors, including cleantech-focused investment firm Safar Partners, participated in the round.

“We have backed Quaise since the beginning because we believed accessing superhot rock would unlock geothermal energy at a scale the world has never seen,” Mark Cupta, managing director at Prelude Ventures, said in a press release.

The startup expects more equity and debt deals to close “imminently.” Quaise has raised $230 million since its founding in 2018.

Quaise says some of the fresh funding will go toward building the world’s first commercial-scale “superhot” geothermal power plant —Project Obsidian in central Oregon. In addition, Quaise is earmarking money for continued development and commercialization of its millimeter-wave drilling system toward depths exceeding 5 kilometers (about 16,400 feet).

Quaise uses a millimeter-wave drilling system developed at the Massachusetts Institute of Technology to remove rock at depths and temperatures that aren’t economically feasible with conventional drilling. With this technology, Quaise can reach rock at temperatures of around 570 degrees to 930 degrees in most places worldwide, enabling construction of geothermal systems that rival fossil fuels and nuclear energy in power density and that rival renewables in cost.

“Our ambition is to power civilization with Earth's most compelling energy source. This round takes us from field-proven technology to first commercial revenues,” Carlos Araque, co-founder, president and CEO of Quaise, added in the release.

Quaise has demonstrated the capability of its millimeter-wave drilling system at its Central Texas test site, drilling more than about 330 feet through granite in 2025—the first time the technology penetrated basement rock at full scale in the field. The company is approaching a depth of about 3,300 feet at the same site.

Construction of Project Obsidian is underway at Oregon’s Deschutes National Forest. The project, which has the potential to generate gigawatt-scale power, is slated to deliver electricity to the Pacific Northwest grid by 2030.

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