New sodium ion battery stores twice the energy and desalinates seawater
Sodium-ion batteries are emerging as a promising option for cleaner, more sustainable energy storage. Researchers at the University of Surrey have identified a surprisingly simple way to improve their performance by keeping water inside a critical battery material instead of removing it. Lithium-ion batteries currently dominate the market, but they depend on costly materials that can harm the environment. Sodium, by contrast, is abundant and widely accessible. Even so, matching the performance of lithium-ion technology has been a major hurdle for sodium-ion systems.
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