Screen-Printed Composite LiFePO4-LLZO Cathodes Towards Solid-State Li-ion Batteries
Molaiyan, P., Välikangas, J., Sliz, R., Ramteke, D.D., Hu, T., Paolella, A., Fabritius, T., & Lassi, U. (2024). Screen-Printed Composite LiFePO4-LLZO Cathodes Towards Solid-State Li-ion Batteries. ChemElectroChem, Early View. https://doi.org/10.1002/celc.202400051
Julkaistu sarjassa
ChemElectroChemTekijät
Hu, Tao |
Päivämäärä
2024Tekijänoikeudet
© 2024 the Authors
LiFePO4 (LFP) is widely used as cathode material for its low cost, high safety, and good thermal properties. It is one of the most exploited cathode materials for commercial Li-ion batteries (LIBs). Herein, we present a screen-printing method to prepare a LFP composite cathode, and a rational combination of the typical composite solid electrolytes (CSE) consisting of polyethylene oxide (PEO)/Li-salt (LiTFSi) electrolyte with ceramic filler (LLZO or Li6.4La3Zr1.4Ta0.6O12 (LLZTO)) has been successfully demonstrated for SSB. The prepared CSE offers: i) a promising ionic conductivity (0.425 mS cm−1 at 60 °C), ii) a wide electrochemical window (>4.6 V), iii) a high Li-ion transference number (tLi+=0.44), iv) a good interfacial compatibility with the electrode, v) a good thermal stability, and vi) a high chemical stability toward Li metal anode. The Li/CSE/Li symmetric cells can be cycled for more than 1000 h without Li-dendrites growth at a current density of 0.2 mA cm−2. The final cell screen-printed LFP composite cathode (LFP+LLZO)//Li metal displays a high reversible specific capacity of 140 mAh g−1 (0.1 C) and 50 mAh g−1 (0.5 C) after 1st and 500th cycles.
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Julkaisija
Wiley-VCH VerlagISSN Hae Julkaisufoorumista
2196-0216Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/207640552
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This work was supported and funded by EU/EURF (PASS, A76178) and EU/Interreg Nord (SolBat, grant no. 20202885) projects. D.D.R thanks to Academy of Finland – Academy Project (CEMGLASS-243033041) for financial support.Lisenssi
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