<ul><li>Fusion startups face challenges in producing their own fuel, particularly finding a rare isotope of lithium required to make tritium.</li><li>MIT spinoff, Hexium, has emerged with $8 million in seed funding to solve fusion's future fuel problems.</li><li>Hexium uses laser technology to separate isotopes of lithium, with a focus on lithium-6.</li><li>The company aims to build a pilot plant and eventually produce tens to hundreds of kilograms of lithium-6 for fusion companies.</li></ul>

Fusion power has a fuel problem; Hexium has a laser-powered solution

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