<ul><li>Researchers at MIT have developed a sodium-air fuel cell that could revolutionize electric transportation.</li><li>The fuel cell can store over three times more energy per kilogram than current lithium-ion batteries, making it ideal for heavy transportation systems that require long-distance travel.</li><li>The system uses liquid sodium metal as fuel and plain air as the oxidizer, producing electricity without greenhouse gas emissions.</li><li>The fuel cell also generates baking soda as a byproduct during operation, potentially helping reduce ocean acidification and offering a safer option for high-energy applications.</li></ul>

Flying on baking soda? New fuel cell could power electric planes without emissions

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