High-efficiency, all-solid-state sodium-air battery achieves energy efficiency of 86%

Researchers in South Korea have successfully demonstrated the use of free ambient air as a fuel leveraging a sodium-based solid electrolyte to tackle the carbonate issue that has been holding back the rollout of metal-air batteries. Their sodium-air battery cell has demonstrated high efficiency, incresed energy density, and a broad voltage range. From pv magazine ESS News site Metal-air batteries, utilizing lithium or sodium, have been of great interest owing to their exceptionally high theoretical gravimetric energy densities. These batteries predominantly rely on the utilization of pure oxygen ...

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