Blar i NTNU Open på forfatter "Rettenwander, Daniel"
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Aging behavior of al- and ga- stabilized li7la3zr2o12 garnet-type, solid-state electrolyte based on powder and single crystal x-ray diffraction
Redhammer, Günther J.; Tippelt, Gerold; Portenkirchner, Andreas; Rettenwander, Daniel (Peer reviewed; Journal article, 2021)Li7La3Zr2O12 garnet (LLZO) belongs to the most promising solid electrolytes for the development of solid-state Li batteries. The stability of LLZO upon exposure to air is still a matter of discussion. Therefore, we performed ... -
Aging Behavior of Al- and Ga- Stabilized Li7La3Zr2O12 Garnet-Type, Solid-State Electrolyte Based on Powder and Single Crystal X-ray Diffraction
Redhammer, Günther J.; Tippelt, Gerold; Portenkirchner, Andreas; Rettenwander, Daniel (Peer reviewed; Journal article, 2021)Li7La3Zr2O12 garnet (LLZO) belongs to the most promising solid electrolytes for the development of solid-state Li batteries. The stability of LLZO upon exposure to air is still a matter of discussion. Therefore, we performed ... -
Blacklight sintering of ceramics
Porz, Lukas; Rettenwander, Daniel (Peer reviewed; Journal article, 2022)For millennia, ceramics have been densified via sintering in a furnace, a time-consuming and energy-intensive process. The need to minimize environmental impact calls for new physical concepts beyond large kilns relying ... -
Deep hydration of an Li7-3xLa3Zr2MIIIxO12solid-state electrolyte material: A case study on Al- and Ga-stabilized LLZO
Redhammer, Gunther J.; Tippelt, Gerold; Rettenwander, Daniel (Peer reviewed; Journal article, 2022)Single crystals of an Li-stuffed, Al- and Ga-stabilized garnet-type solid-state electrolyte material, Li7La3Zr2O12 (LLZO), have been analysed using single-crystal X-ray diffraction to determine the pristine structural state ... -
Deflecting Dendrites by Introducing Compressive Stress in Li7La3Zr2O12 Using Ion Implantation
Flatscher, Florian; Todt, Juraj; Burghammer, Manfred; Søreide, Hanne-Sofie Marie Scisly; Porz, Lukas; Li, Yanjun; Wenner, Sigurd; Bobal, Viktor; Ganschow, Steffen; Sartory, Bernhard; Brunner, Roland; Hatzoglou, Constantinos; Keckes, Jozef; Rettenwander, Daniel (Peer reviewed; Journal article, 2023)Lithium dendrites belong to the key challenges of solid-state battery research. They are unavoidable due to the imperfect nature of surfaces containing defects of a critical size that can be filled by lithium until fracturing ... -
Development of Li3YCl6-Coated NCA Cathode via Mechanofusion and its Electrochemical Evaluation in Argyrodite-Based Solid-State Batteries
Sandvik, Torgeir Matre (Master thesis, 2022)De siste årene har det vært en betydelig utvikling innen forskning på faststoffbatterier (SSB). Imidlertid har de tekniske utfordringene, inkludert inkompatibilitet i grenses- nittet mellom elektrode og elektrolytt på grunn ... -
Dislocations in ceramic electrolytes for solid-state Li batteries
Porz, L.; Knez, D.; Scherer, M.; Ganschow, S.; Kothleitner, G.; Rettenwander, Daniel (Peer reviewed; Journal article, 2021)High power solid-state Li batteries (SSLB) are hindered by the formation of dendrite-like structures at high current rates. Hence, new design principles are needed to overcome this limitation. By introducing dislocations, ... -
Effect of pulse-current-based protocols on the lithium dendrite formation and evolution in all-solid-state batteries
Reisecker, V.; Flatscher, Florian; Porz, Lukas; Fincher, C.; Todt, J.; Hanghofer, I.; Hennige, V.; Linares-Moreau, M.; Falcaro, P.; Ganschow, S.; Wenner, Sigurd; Chiang, Y.-M.; Keckes, J.; Fleig, J.; Rettenwander, Daniel (Peer reviewed; Journal article, 2023)Understanding the cause of lithium dendrites formation and propagation is essential for developing practical all-solid-state batteries. Li dendrites are associated with mechanical stress accumulation and can cause cell ... -
Facile synthesis of Al-stabilized lithium garnets by a solution-combustion technique for all solid-state batteries
Badami, Pavan; Smetaczek, Stefan; Limbeck, Andreas; Rettenwander, Daniel; Mada, Arunachala Nadar (Peer reviewed; Journal article, 2021)Garnet-type solid electrolytes with cubic modification (c-LLZO, Li7La3Zr2O12) are considered to be one of the most promising candidates for SSLBs with desirable properties such as high ionic conductivity (about 1 mS cm−1) ... -
Investigating the electrochemical stability of Li7La3Zr2O12 solid electrolytes using field stress experiments
Smetaczek, Stefan; Pycha, Eva; Ring, Joseph; Siebenhofer, Matthäus; Ganschow, Steffen; Berendts, Stefan; Nenning, Andreas; Kubicek, Markus; Rettenwander, Daniel; Limbeck, Andreas; Fleig, Jürgen (Peer reviewed; Journal article, 2021)Cubic Li7La3Zr2O12 (LLZO) garnets are among the most promising solid electrolytes for solid-state batteries with the potential to exceed conventional battery concepts in terms of energy density and safety. The electrochemical ... -
Investigating the electrochemical stability of Li<inf>7</inf>La<inf>3</inf>Zr<inf>2</inf>O<inf>12</inf>solid electrolytes using field stress experiments
Smetaczek, Stefan; Pycha, Eva; Ring, Joseph; Siebenhofer, Matthäus; Ganschow, Steffen; Berendts, Stefan; Nenning, Andreas; Kubicek, Markus; Rettenwander, Daniel; Limbeck, Andreas; Fleig, Jürgen (Peer reviewed; Journal article, 2021)Cubic Li7La3Zr2O12 (LLZO) garnets are among the most promising solid electrolytes for solid-state batteries with the potential to exceed conventional battery concepts in terms of energy density and safety. The electrochemical ... -
Li Morphology of In Situ-Formed Li Anodes in Solid-State Li Batteries
Bratlie, Henrik Rotvær (Master thesis, 2023)Faststoffbatterier med litiummetallanoder har fått betydelig oppmerksomhet som følge av det økende energibehovet og den påfølgende etterspørselen etter effektive energilagringsløsninger. Disse batteriene har en overlegen ... -
Li+/H+ exchange of Li7La3Zr2O12 single and polycrystals investigated by quantitative LIBS depth profiling
Smetaczek, Stefan; Limbeck, Andreas; Zeller, Veronika; Ganschow, Steffen; Rettenwander, Daniel; Fleig, Jürgen (Peer reviewed; Journal article, 2022)Li7La3Zr2O12 (LLZO) garnets are highly attractive to be used as solid electrolyte in solid-state Li batteries. However, LLZO suffers from chemical interaction with air and humidity, causing Li+/H+ exchange with detrimental ... -
Lithium dendrites in solid-state batteries - Where they come from and how to mitigate them
Flatscher, Florian (Doctoral theses at NTNU;2023:382, Doctoral thesis, 2023)A major contributor to global CO2 emissions is transportation and a transition to electric vehicles could lead to a significant reduction of those emissions. A roadblock in this transition are safety issues of electric ... -
Role of Filler Content and Morphology in LLZO/PEO Membranes
Din, Mir Mehraj Ud; Häusler, M.; Fischer, S.M.; Ratzenböck, K.; Chamasemani, F.F.; Hanghofer, I.; Henninge, V.; Brunner, R.; Slugovc, C.; Rettenwander, Daniel (Journal article; Peer reviewed, 2021) -
Structure–transport correlations in Na11Sn2SbSe12 and its sulfide solid solutions
Ramos, Erika P.; Assoud, Abdelijalil; Laidong, Zhou; Shyamsunder, Abhinandan; Rettenwander, Daniel; Nazar, Linda F. (Peer reviewed; Journal article, 2023)We report a new ion conductor—Na11Sn2SbSe12—as a possible candidate for a solid catholyte in composite cathodes for all-solid state Na-batteries, which exhibits a room temperature ionic conductivity of 0.15 ± 0.03 mS cm−1 ... -
Study on the structural phase transitions in NaSICON-type compounds using Ag3Sc2(PO4)(3) as a model system
Redhammer, Günther J.; Tippelt, Gerold; Stahl, Quirin; Benisek, Arthur; Rettenwander, Daniel (Journal article; Peer reviewed, 2021) -
Water as a monomer: synthesis of an aliphatic polyethersulfone from divinyl sulfone and water
Ratzenböck, Karin; Din, Mir Mehraj Ud; Fischer, Susanne; Zagar, Ema; Pahovnik, David; Bose, Daniel; Rettenwander, Daniel; Slugovc, Christian (Peer reviewed; Journal article, 2022)Using water as a monomer in polymerization reactions presents a unique and exquisite strategy towards more sustainable chemistry. Herein, the feasibility thereof is demonstrated by the introduction of the oxa-Michael ... -
Zero strain cathode
Ellingsen, Ingeborg (Master thesis, 2023)For å realisere fast fase-batterier som en levedyktig, markedsklar teknologi må problemer med tap av kontakt mellom batterikomponenter løses, da det medfører tap av kapasitet som til slutt ødelegger batteriet. En av ...