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Chinese Researchers Achieve 2-3X Leap in Lithium Battery Energy Density
Release Time:
2025-12-23
Scientists from Tianjin University in China have reported a groundbreaking advance in battery technology, successfully developing lithium-metal batteries with energy densities 2 to 3 times higher than current commercial lithium-ion batteries. Their research, published in the journal Nature, focused on a novel "delocalized" design for high-energy metal battery electrolytes. This innovation breaks from traditional design dependencies and balances high energy output with long cycle life. The team has produced soft-pack battery cells with an energy density exceeding 600 watt-hours per kilogram (Wh/kg) and module-level batteries reaching 480 Wh/kg. For context, top commercial EV batteries today are around 250-300 Wh/kg. The technology has already been applied in mini all-electric unmanned aerial vehicles, tripling their flight endurance. With a pilot production line established, this technology is moving swiftly from the lab toward commercialization.
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