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DARPA Taps Fusion Firm for High-Power Radioactive Battery

The contract backs solid-state, micro-fabricated cells that DARPA says could deliver more than 10 watts per kilogram for space and defense missions.

Summary by The Register
: Drawback: it’s radioactive

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In fact, Avalanche Energy is dealing with nuclear fusion. For the Darpa, the company is to develop a battery that works with radioactive decay.

·Germany
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The DARPA has just entrusted $5.2 million to the Avalanche Energy startup to develop an alpha particle battery. The goal is to create a compact power source of a few kilos, capable of feeding a computer for months, destined for space and military missions. And the startup has an idea behind the head. $5.2 million for a nuclear battery Avalanche Energy, a young company based in Washington State, has just won a $5.2 million contract from the DARPA…

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TechCrunch broke the news in United States on Wednesday, April 8, 2026.
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