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Advanced electrolyte with high stability and low-temperature resistance for zinc-ion batteries.
- Source :
- Journal of Materials Chemistry A; 1/7/2024, Vol. 12 Issue 1, p277-285, 9p
- Publication Year :
- 2024
-
Abstract
- Aqueous zinc-ion batteries (AZIBs) are considered to be a green and safe energy storage system. However, electrolyte leakage, zinc dendrite growth and side reactions are still barriers to their practical application. A quasi-solid sodium alginate gel electrolyte (GE) was designed to alleviate these pain points. To further stabilize the water molecules in this GE and extend its application to subzero temperatures, a disaccharide called trehalose (TreH) was introduced as a multifunctional additive. The rational introduction of TreH notably improved the strength (186.6 kPa) of the sodium alginate GE while retaining a high ionic conductivity (22.4 mS cm<superscript>−1</superscript>) at 25 °C. The zinc–polyaniline full battery assembled with this composite GE exhibited a capacity retention of 70.4% after 500 cycles at 25 °C, and still delivered a reversible capacity of 120.6 mA h g<superscript>−1</superscript> at −20 °C. These results show that the sodium alginate GE with trehalose as an additive has great potential for development in AZIBs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20507488
- Volume :
- 12
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Journal of Materials Chemistry A
- Publication Type :
- Academic Journal
- Accession number :
- 174316760
- Full Text :
- https://doi.org/10.1039/d3ta05052a