AI Article Synopsis
- A gel polymer electrolyte made from poly(vinyl alcohol) (PVA) is utilized in sodium-ion batteries (SIBs), offering an eco-friendly alternative due to its biodegradable and water-soluble properties.
- The innovative use of talc as an inert filler enhances the conductivity, thermal stability, and overall performance of the electrolyte, particularly at 1 and 3 weight percent concentrations.
- Results show that the addition of talc positively impacts the cyclability of the hard carbon electrode, achieving discharge capacities of 243 and 225 mAh/g after 50 cycles for different talc concentrations.
Article Abstract
A gel polymer electrolyte based on poly(vinyl alcohol) (PVA) is used in sodium-ion batteries (SIBs). The use of biodegradable and water-soluble polymer potentially reduces the negative environmental impact. The other components include sodium salt (NaPF ), sulfolane (TMS) as a plasticizer and talc. For the first time, natural and abundant talc has been used as an inert filler in a gel polymer electrolyte. The best results were obtained for moderate amounts of filler (1 and 3 wt%). Then, an increase in the conductivity, transference numbers, and thermal stability of the membranes was observed. Moreover, the presence of talc had a positive effect on the cyclability of the hard carbon electrode. The discharge capacity after 50 cycles of HC|1 % T_TMS|Na and HC|3 % T_TMS|Na was 243 and 225 mAh g , respectively. The use of talc in gel polymer electrolytes containing sodium ions improves the safety and efficiency of SIBs.
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| http://dx.doi.org/10.1002/cphc.202300090 | DOI Listing |
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