Sodium-oxygen batteries have improved cycle life due to highly concentrated electrolytes

Smartphones, laptops, electric cars—whatever the device, an efficient battery is high on any user's wish list. The search for the next-generation battery has recently focused on sodium– oxygen batteries. Theoretically, these should provide previously unattainable efficiency but their practical implementation has proven to be a stumbling block. Researchers now report in the journal Angewandte Chemie, that a highly concentrated electrolyte solution may make the sodium–oxygen batt