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A non-Newtonian fluid quasi-solid electrolyte designed for long life and high safety Li-O2 batteries.
- Source :
- Nature Communications; 4/20/2023, Vol. 14 Issue 1, p1-10, 10p
- Publication Year :
- 2023
-
Abstract
- The Li dendrite growth and the liquid electrolyte volatilization under semi-open architecture are intrinsic issues for Li-O<subscript>2</subscript> battery. In this work, we propose a non-Newtonian fluid quasi-solid electrolyte (NNFQSE) SiO<subscript>2</subscript>-SO<subscript>3</subscript>Li/PVDF-HFP, which has both shear-thinning and shear-thickening properties. The component interactions among the sulfonated silica nanoparticles, liquid electrolyte, and polymer network are beneficial for decent Li<superscript>+</superscript> conductivity and high liquid electrolyte retention without volatilization. Furthermore, NNFQSE exhibits shear-thinning property to eliminate the stress of dendrite growth during repeated cycling. Meanwhile, when the force suddenly increases, such as a high current rate, the NNFQSE may dynamically turn shear-thickening to respond and mechanically stiffen to inhibit the lithium dendrite penetration. By coupling with the NNFQSE, the lithium symmetrical battery can run over 2000 h under 1 mA cm<superscript>−2</superscript> at room temperature, and the quasi-solid Li-O<subscript>2</subscript> battery actualizes long life above 5000 h at 100 mA g<superscript>−1</superscript>. Lithium dendrite growth and liquid electrolyte volatilization limit the further development of lithium-oxygen batteries. Here, authors report a non-Newtonian fluid quasi-solid electrolyte to address those issues, which improve the life duration of the lithium-oxygen batteries. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20411723
- Volume :
- 14
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Nature Communications
- Publication Type :
- Academic Journal
- Accession number :
- 163232572
- Full Text :
- https://doi.org/10.1038/s41467-023-37998-5