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000910694 005__ 20240708132712.0
000910694 0247_ $$2doi$$a10.1117/12.2607752
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000910694 037__ $$aFZJ-2022-04066
000910694 1001_ $$0P:(DE-HGF)0$$aHoff, Linda$$b0$$eCorresponding author
000910694 1112_ $$aLaser-based Micro- and Nanoprocessing XVI$$cSan Francisco$$d2022-01-22 - 2022-02-27$$wUnited States
000910694 245__ $$aLaser sintering of ceramic-based solid-state battery materials
000910694 260__ $$bSPIE$$c2022
000910694 300__ $$a119890E
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000910694 520__ $$aSolid-state batteries (SSBs) are a promising technology for high travelling ranges and safety in future electromobility. In SSBs, separator and liquid electrolyte materials are combined in a solid-state electrolyte layer. Possible materials for SSBs are ceramic oxides, for example LiCoO2 (LCO) as cathode material and Li7La3Zr2O12 (LLZO) as electrolyte material. By means of screen printing, a mixed cathode material (mixture of cathode and electrolyte material to have higher ionic conductivity in the cathode) is applied on a stainless steel current collector foil and after thermal processing, the electrolyte material is printed on top of the sintered mixed cathode to create a half-cell. Both layers are thermally post treated (dried and sintered) in consecutive steps to produce functional layers for SSBs. Conventional heat treatment is done in an oven process. A main disadvantage is the diffusion of materials into adjacent layers due to long process times (range of minutes) at high temperatures. Furthermore, the battery half-cell cannot be treated at high temperatures due to incompatibilities in decomposition temperatures of LLZO and LCO. Preservation of the crystal structure and a suitable temperature management during the sintering process are of enormous importance. By means of laser processing, short interaction times (range of seconds and below) are realized. High heating rates show potential for reducing diffusion processes and preserving the crystal structure of the materials. In this work, the influence of different interaction times on crystal structure and adhesion are investigated for laser sintering of LLZO and LCO micro particle layers.
000910694 536__ $$0G:(DE-HGF)POF4-1223$$a1223 - Batteries in Application (POF4-122)$$cPOF4-122$$fPOF IV$$x0
000910694 536__ $$0G:(BMWi)03ETE016F$$aVerbundprojekt: OptiKeraLyt: Material- und Produktionsprozessoptimierung für Lithium-Ionen-Batterien mit keramischen Festkörperelektrolyten; Teilvorhaben: Synthese von keramischen Festkörperkomponenten (03ETE016F)$$c03ETE016F$$x1
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000910694 7001_ $$0P:(DE-Juel1)178008$$aScheld, Walter Sebastian$$b1$$ufzj
000910694 7001_ $$0P:(DE-HGF)0$$aVedder, Christian$$b2
000910694 7001_ $$0P:(DE-HGF)0$$aStollenwerk, Jochen$$b3
000910694 7001_ $$0P:(DE-HGF)0$$aKling, Rainer$$b4$$eEditor
000910694 7001_ $$0P:(DE-HGF)0$$aWatanabe, Akira$$b5$$eEditor
000910694 773__ $$a10.1117/12.2607752$$v11989$$y2022
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000910694 9141_ $$y2022
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