From Powder to Sheets: A Comparative Electrolyte Study for Slurry-Based Processed Solid Electrolyte/Binder-Sheets as Separators in All-Solid-State Batteries
نویسندگان
چکیده
A key for the market penetration of large-scale and high energy All-Solid-State Batteries (ASSBs) are sheet-type cell components. Herein, we report a slurry-based process to obtain free-standing solid electrolyte (SE)/binder composite sheets as ASSB separators. We investigate three different sulfidic systems (Li 6 PS 5 Cl, Li 7 P 3 S 11 10 SnP 2 12 ) in combination with hydrogenated nitrile butadiene rubber (HNBR). By means electrochemical impedance spectroscopy (EIS), influence separator composition processing on ionic sheet conductivity is evaluated. Independent material, reduction by factor compared pristine powder at 70 MPa operation pressure eight maximum observed. This can be attributed addition ionically isolating binder, which however necessary production freestanding sheets. show beneficial effect pre-compressing little porosity values apparent conductivity. Lastly, decouple fabrication operating produced
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ژورنال
عنوان ژورنال: Journal of The Electrochemical Society
سال: 2022
ISSN: ['0013-4651', '1945-7111']
DOI: https://doi.org/10.1149/1945-7111/ac7e76