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| Hauptseite > Publikationsdatenbank > Superior sintering behavior and ionic conductivity: Facile coating methods for improved electrolyte materials > print |
| Hauptseite > Publikationsdatenbank > Superior sintering behavior and ionic conductivity: Facile coating methods for improved electrolyte materials > print |
| 001 | 885969 | ||
| 005 | 20240711085620.0 | ||
| 024 | 7 | _ | |a 2128/26064 |2 Handle |
| 037 | _ | _ | |a FZJ-2020-04200 |
| 041 | _ | _ | |a English |
| 100 | 1 | _ | |a Odenwald, Philipp |0 P:(DE-Juel1)177015 |b 0 |e Corresponding author |u fzj |
| 111 | 2 | _ | |a Batterieforum Deutschland 2020 |c Berlin |d 2020-01-22 - 2020-01-24 |w Germany |
| 245 | _ | _ | |a Superior sintering behavior and ionic conductivity: Facile coating methods for improved electrolyte materials |
| 260 | _ | _ | |c 2020 |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
| 336 | 7 | _ | |a INPROCEEDINGS |2 BibTeX |
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| 520 | _ | _ | |a Objective:Solid-state batteries are intensively investigated as a disruptive energy storage technology. Oxide and phosphate-based Li-ion conductors such as Li1.5Al0.5Ti1.5(PO4)3 (LATP) and Li6.45La3Zr1.6Ta0.4Al0.05O12 (LLZ) show properties like improved safety and electrochemical stability compared to incumbent Li-ion battery technologies, but also require treatment at elevated temperatures. We present advanced processing methods for these ceramic electrolyte materials. By applying various surface coatings on electrolyte particles and electrode-electrolyte interfaces we improved the sintering behavior and the electrode compatibility.Methods:LATP solid electrolyte powder was prepared by solution-assisted solid-state-reaction (SASSR), whereas LLZ was prepared via a solid state reaction. Sintering additives were dispersed along with the oxide-based electrolyte powder to perform screening tests. Further, wet coating methods employing organometallic precursors were developed for powders and planar substrates. The resulting solid electrolyte materials were characterized by X-ray diffraction (XRD), microscopic imaging and conductivity measurements.Results and discussion:A mixture of Al- and B-alkoxide was used to modify the conventional LATP. Phase-pure LATP was confirmed for pellets of modified and unmodified LATP by XRD, and the relative densities after sintering exceeded 90 % for both the modified and unmodified powder. Symmetric cells with the modified LATP-electrolyte and sputtered Au-electrodes showed an improved ionic conductivity at room temperature. Trilithium borate and lithium fluoride were identified as the most effective sintering additives among those investigated in conjunction with LLZ, yielding a relative density of 89 % and improved conductivity compared to conventional LLZ. |
| 536 | _ | _ | |a 131 - Electrochemical Storage (POF3-131) |0 G:(DE-HGF)POF3-131 |c POF3-131 |f POF III |x 0 |
| 700 | 1 | _ | |a Bauer, Alexander |0 P:(DE-Juel1)177092 |b 1 |u fzj |
| 700 | 1 | _ | |a Tsai, Chih-Long |0 P:(DE-Juel1)156244 |b 2 |u fzj |
| 700 | 1 | _ | |a Uhlenbruck, Sven |0 P:(DE-Juel1)129580 |b 3 |u fzj |
| 700 | 1 | _ | |a Fattakhova-Rohlfing, Dina |0 P:(DE-Juel1)171780 |b 4 |u fzj |
| 700 | 1 | _ | |a Guillon, Olivier |0 P:(DE-Juel1)161591 |b 5 |u fzj |
| 856 | 4 | _ | |y OpenAccess |u https://juser.fz-juelich.de/record/885969/files/Poster.pdf |
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