Development of sodium hybrid quasi-solid electrolytes based on porous NASICON and ionic liquids

• Novel Na-hybrid electrolytes based on porous NASICON and commercial ionic liquids, has been prepared. These new hybrid present an enhanced conductivity (around 1 mS cm-1 at 30°C) of one order magnitude respect to pore-free sintered samples Thinner films this would permit the manufacture functional macroporous inorganic separators acting as a Na + reservoirs. Lithium-ion batteries are currently alternative choice overcome increasing demand energy. However, besides scarcity lithium limited geolocation, it is believed that such have already reached their maximum maturity. Sodium emerge produce new, so called, post-lithium batteries. In study, we explore (i) effect sodium content sintering temperature in solid NASICON-type compounds (ii) use two methodologies obtain samples: application natural substances organic materials pore-formers freeze casting. The main purpose attainment quasi-solid state electrolytes, with room conductivity, ceramic electrolyte layers infiltrated liquids. Using approach, different microstructure morphology distribution were achieved, providing enhancement (ranging from 0.45 0.96 cm −1 30 °C) for samples. According these results might be considered separator can act reservoir.