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Eos Energy Storage, a startup developing rechargeable zinc-air energy storage technology, raised another $2.97 million in venture capital funding this week, according to Cleantech Group, which cited a regulatory filing. The newest fundraising brings the Easton, Penn.-based startup’s total funding to $11.9 million. The startup had tested grid-scale prototypes for more than 2,000 cycles with no degradation, and were aiming at commercial batteries to last about 10,000 cycles — all at a target cost of $1000 per kilowatt for a six-hour battery, or $160 per kilowatt-hour. Full Article

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