Anthro Energy Breaks Ground on Battery Materials Factory in Kentucky

Anthro Energy has commenced construction on a new battery materials factory in Louisville, Kentucky, capable of producing sufficient materials for over 300,000 electric vehicles. The facility, which is set to generate 25 gigawatt-hours of electrolytes annually, is positioned to enhance the production of solid-state batteries within the U.S.

With battery manufacturers seeking alternatives to materials dependent on foreign entities, particularly those controlled by Chinese companies, Anthro aims for its factory, expected to begin operations in 2028, to meet this growing domestic demand. “When it opens, we’ll be serving domestic, high-spec customers who need electrolytes — a domestic source of China-free supply, FEOC-free supply,” stated David Mackanic, co-founder and CEO of Anthro Energy, in an interview.

The startup, which initiated its first funding round four years ago, envisions its Kentucky location as a pivotal component in the rapidly evolving U.S. battery supply chain. Mackanic highlighted the site’s strategic advantage: “Within a 12-hour drive, you can reach 70% of the battery production facilities in the United States that exist today.”

Funding for the factory includes a $24.9 million award from the Department of Energy under the Bipartisan Infrastructure Law, along with $18.4 million in investment tax credits from the Inflation Reduction Act. Additionally, Kentucky provided $2.3 million in tax incentives to support the creation of 110 permanent jobs at the facility.

The Louisville factory will produce a variety of electrolytes, but Mackanic expressed a desire for substantial output to focus on Anthro’s proprietary polymer product, Proteus. This product is engineered to integrate seamlessly into existing production lines, allowing the startup to commence manufacturing using formulations from other companies. Following customer validation of Anthro’s materials, production can be adjusted accordingly.

Proteus is seen as a potential game changer for the battery industry, paving the way for solid- and semi-solid-state batteries, which are regarded as the industry’s “holy grail.” According to reports, Chinese companies are set to initiate trial production of solid-state batteries by 2027.

Solid-state batteries offer solutions to limitations faced by conventional lithium-ion batteries, including improved energy density and reduced fire risks due to non-flammable electrolytes. They also prevent the formation of dendrites, which can cause short circuits by bridging the anode and cathode.

Despite their promising potential, solid-state batteries have yet to be manufactured cost-effectively at scale. Anthro is poised to address these challenges with a manufacturing process where its electrolyte first enters the cell as a liquid, allowing for effective anode and cathode penetration, before solidifying to bond the components together. Mackanic noted that the resulting cell could be “10 to 15 times stronger than with a liquid electrolyte,” and offers flexibility, positioning it for applications beyond electric vehicles, potentially benefiting sectors like drones and robotics.

While many battery materials companies have stumbled during their transition from small to large-scale production, Mackanic remains optimistic that federal funding will help Anthro successfully bridge this critical phase. “To get into big applications, you have to have big production,” he stated. “The Department of Energy award solves a lot of the chicken or the egg problem.”