Pre Seed · Energy · Zurich, Switzerland · Founded 2023 · 16–16 employees
Unbound Potential develops groundbreaking membrane-less redox flow batteries for long-duration energy storage, eliminating costly membranes that typically account for 20-40% of battery costs. The ETH Zurich spin-off has secured €14.4 million in pre-seed funding, one of Europe's largest rounds at this stage. Their technology can last 20,000+ cycles with 85% efficiency and works with water-based, non-flammable electrolytes. The company has partnerships with Amazon for pilot testing and is in discussions with FlexBase for Europe's largest flow battery project, with their first pilot plant planned for mid-2026.
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