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Startup Promises a Revolutionary Grid Battery

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Battery developer Eos Energy Storage claims to have solved key problems holding back a battery technology that could revolutionize grid energy storage. If the company is right, its zinc-air batteries will be able to store energy for half the cost of additional generation from natural gas—the method currently used to meet peak power demands. Company officials say that current prototypes demonstrate twice the energy density of lithium-ion batteries. They claim their final product will last for 30 years in grid-scale applications with a cycle life that is orders of magnitude greater than that of lead-acid batteries, making it one of the longest-lasting battery types around. CEO Michael Oster says Eos will soon complete a $10 million round of funding from several investors. “If they can get what they are claiming, it would be revolutionary,” says Steve Minnihan, an analyst with Lux Research, who says the technology shows promise for both grid storage and electric vehicles. Full Article

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