Tailored nonwoven supported non-flammable quasi-solid electrolyte enables an ultra-stable sodium metal battery†
Sayan
Das, 
*ab
Vilas G.
Pol
b
and
*ab
Vilas G.
Pol
b
and
Abstract
An easily scalable approach to developing a nonwoven-supported PVDF-HFP polymer-based quasi-solid-state flexible non-flammable electrolyte shows a conductivity of 1.16 × 10−4 S cm−1 at RT with a transfer number of 0.68. The Na3V2 (PO4)3 (NVP) cathode-based Na metal cell delivers a discharge capacity of 73 mAh g−1 at a 2C rate and shows exceptional capacity retention of 98.4% after 2500 cycles.
- This article is part of the themed collections: Research advancing UN SDG 7: Affordable and clean energy and Sodium-ion batteries – Topic Highlight
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