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@rowancheung

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Flint

Why it worked

The video highlights a novel and potentially disruptive technology with clear safety and environmental benefits, presented in a concise and visually engaging manner. The partnership with a well-known brand like Logitech adds credibility and broadens its appeal.

Summary

A Singaporean startup called Flint has developed a "paper battery" using zinc and magnesium dioxide, which is non-flammable, compostable, and cheaper to produce than lithium-ion batteries. They have partnered with Logitech to integrate these batteries into devices, aiming to replace traditional lithium batteries.

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Original caption

Singapore-based startup Flint created a "paper battery" that integrates cellulose into the casing, cathode, electrolyte, and separator. Using zinc and manganese dioxide chemistry, the battery contains no lithium, cobalt, nickel, or PFAS, and is non-flammable even when cut or exposed to flame. Founder Carlo Charles says it delivers up to 4.2 volts and 226 watt-hours per kilogram, with 1,000 recharge cycles, rivaling lithium-ion at 1.8 times lower cost per kilowatt-hour. Flint won Logitech's 2025 Future Positive Challenge and is piloting AAA batteries in Logitech peripherals, targeting low-power household electronics rather than electric vehicles.