Nanoporous ceramic-poly(ethylene oxide) composite electrolyte for sodium metal battery.
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SONG, S., DONG, Z., FERNANDEZ, C., WEN, Z., HU, N. and LU, L. 2019. Nanoporous ceramic-poly(ethylene oxide) composite electrolyte for sodium metal battery. Materials letters [online], 236, pages 13-15. Available from: https://doi.org/10.1016/j.matlet.2018.10.059
The exploration of solid polymer electrolytes with both superior ionic conductivity and high mechanical stability for sodium-metal batteries still remains dramatical challenges. Herein, we report a composite electrolyte fabricated by sandwiching nanoporous ceramic with a poly(ethylene oxide) (PEO) base polymer electrolyte. This laminated configuration yields superior ionic conductivity of 1.6x 10ˉ⁴ S cmˉ¹ at room temperature, stable Na plating and stripping, as well as wide potential stability window of 4.2 V vs Na/Na+.