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A cost-effective, ionically conductive and compressible oxychloride solid-state electrolyte for stable all-solid-state lithium-based batteries.
- Source :
-
Nature communications [Nat Commun] 2023 Jun 27; Vol. 14 (1), pp. 3807. Date of Electronic Publication: 2023 Jun 27. - Publication Year :
- 2023
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Abstract
- To enable the development of all-solid-state batteries, an inorganic solid-state electrolyte should demonstrate high ionic conductivity (i.e., > 1 mS cm <superscript>-1</superscript> at 25 °C), compressibility (e.g., > 90% density under 250-350 MPa), and cost-effectiveness (e.g., < $50/kg). Here we report the development and preparation of Li <subscript>1.75</subscript> ZrCl <subscript>4.75</subscript> O <subscript>0.5</subscript> oxychloride solid-state electrolyte that demonstrates an ionic conductivity of 2.42 mS cm <superscript>-1</superscript> at 25 °C, a compressibility enabling 94.2% density under 300 MPa and an estimated raw materials cost of $11.60/kg. As proof of concept, the Li <subscript>1.75</subscript> ZrCl <subscript>4.75</subscript> O <subscript>0.5</subscript> is tested in combination with a LiNi <subscript>0.8</subscript> Mn <subscript>0.1</subscript> Co <subscript>0.1</subscript> O <subscript>2</subscript> -based positive electrode and a Li <subscript>6</subscript> PS <subscript>5</subscript> Cl-coated Li-In negative electrode in lab-scale cell configuration. This all-solid-state cell delivers a discharge capacity retention of 70.34% (final discharge capacity of 70.2 mAh g <superscript>-1</superscript> ) after 2082 cycles at 1 A g <superscript>-1</superscript> , 25 °C and 1.5 tons of stacking pressure.<br /> (© 2023. The Author(s).)
Details
- Language :
- English
- ISSN :
- 2041-1723
- Volume :
- 14
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Nature communications
- Publication Type :
- Academic Journal
- Accession number :
- 37369677
- Full Text :
- https://doi.org/10.1038/s41467-023-39522-1