Building Sodium Metal Battery with Polyisoprene-Based Air-Stable Single-Ion Gel Polymer Electrolyte

• DOI: 10.1021/acsaem.3c00430
• Publication Date: 2023-05-11T01:06:29Z
• Authors: Sayan Das; Somdeb Jana; Martin Orságh; Katarzyna Byś; Jaisankar Mishra; Mariusz Uchman; Venimadhav Adyam
• Keywords: Hexafluoropropylene

The intrinsically safe, flexible, single-ion gel polymer electrolytes with a high transference number (0.75) have been developed by making the proper blending of poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) copolymer and biocompatible poly((sulfamate-carboxylate) isoprene) (PISC) when soaked in carbonate solvents. More interestingly, steady conductivity 1.81 × 10–5 S/cm is observed for 15 days under normal air exposure conditions (RH = 45%–61%, T 25–31 °C). sodium metal battery an NVP cathode demonstrates charge/discharge cycling at 80 °C 82% capacity retention C/5 rate after 45 cycles. To trigger performance room temperature, formed conventional liquid electrolyte 67.92% 200 cycles (C/10 rate) even to electrolyte.