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Nazarenus, Tobias ; Hanft, Dominik ; Moos, Ralf:
Aerosol Deposition Method : A new way to fabricate conductive solid electrolytes for next generation Li ion batteries.
2019
Veranstaltung: PACRIM 13, The 13th Pacific Rim Conference of Ceramic Societies
, 27.10.-1.11.2019
, Okinawa, Japan.
(Veranstaltungsbeitrag: Kongress/Konferenz/Symposium/Tagung
,
Vortrag
)
Abstract
Solid-state batteries are of high interest for the next generation of lithium ion batteries. Due to their wide electrochemical working range, ceramic solid electrolytes offer a promising alternative to currently used lithium ion batteries with liquid electrolytes and enable new possibilities for the cell design. Using metallic lithium instead of intercalation electrodes like graphite will significantly increase the specific anode capacity and at the same time due to the non-flammable solid electrolyte the operation safety is increased. The economical mass production of solid electrolyte cells is a major challenge due to limited production technologies. Ceramic processing technologies used today are characterized by high processing temperatures and cost-intensive system components. This often results in problems such as interdiffusion processes during co-sintering methods, high electrolyte layer thicknesses and long process times. The Aerosol Deposition Method (ADM) can meet all these challenges and build dense solid electrolyte layers in a thickness range of several μm without the disadvantages of conventional ceramic coating techniques. The method is characterized by the application of dense, adhesive ceramic layers at room temperature without the need for a heat treatment step. Thus, a very wide range of different substrates can be used. The films are formed directly from the powder with neither a powder treatment nor solvents. During the process, the material does not undergo any phase transformation and the stoichiometry is retained. Although no thermal treatment during the deposition is necessary, it can be shown that a thermal treatment at low temperatures after the process significantly increases the layer conductivity. In the present work, the formation of thin solid electrolyte films by aerosol deposition is shown. Furthermore, the suitability of the layers as Li-ion conductors are investigated. Therefore, the generated layers are investigated with optical and electrochemical methods.
Weitere Angaben
| Publikationsform: | Veranstaltungsbeitrag (Vortrag) |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Funktionsmaterialien > Lehrstuhl Funktionsmaterialien - Univ.-Prof. Dr.-Ing. Ralf Moos Profilfelder > Advanced Fields > Neue Materialien Forschungseinrichtungen > Forschungszentren > Bayreuther Materialzentrum - BayMAT Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Funktionsmaterialien Profilfelder Profilfelder > Advanced Fields Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 11 Nov 2019 13:19 |
| Letzte Änderung: | 11 Nov 2019 13:19 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/53150 |