US Battery Startups Find Defence Lifeline

US battery start-ups are finding new support in defence as the domestic electric vehicle market absorbs the loss of key incentives. After policy changes weakened parts of the battery and EV demand outlook, national security has become a more persuasive case for backing American battery supply chains.

The Department of Energy has announced $500 million in grants aimed at strengthening domestic battery and critical mineral capacity. The programme is framed around reducing reliance on foreign sources, improving national security and supporting American energy dominance. Much of the funding is flowing to start-ups working on materials, lithium extraction and recycling.

Coreshell, a battery materials company, received $50 million to expand manufacturing of metallurgical silicon anode material. Lilac Solutions secured $100 million for a lithium processing facility on Utah’s Great Salt Lake, targeting 5,000 metric tonnes of lithium carbonate a year by 2028. Nth Cycle also received $100 million to refine black mass from recycled lithium-ion batteries into lithium and nickel compounds for new battery production.

The defence angle is becoming increasingly important. Modern military systems, from drones and torpedoes to infantry radios and fighter jets, depend on lightweight, reliable batteries. That demand does not replace the scale of the automotive market, but it gives battery start-ups a steadier strategic rationale at a time when EV growth has become more politically and commercially uncertain.

The numbers show the imbalance. The US Defence Logistics Agency was buying about $200 million worth of batteries annually as far back as 2021, while the automotive industry is expected to spend nearly $18 billion on US battery manufacturing this year.

For global tech, the lesson is that batteries are no longer only a climate or mobility story. They are becoming infrastructure for defence, industry and strategic autonomy. The future may still be electric, but the customer keeping some start-ups alive is increasingly the state.