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Chinese researchers have created a water-based battery that can endure over 120,000 charge cycles and is non-flammable. The battery uses organic electrodes and safe, neutral electrolytes. Unlike lithium batteries, which can catch fire, this new battery could be used for renewable energy storage, backup systems, and more.

However, it has lower energy density, making it less suitable for electric vehicles and smartphones. If mass production is successful, it could significantly impact energy transition efforts.