PhD student Christina Schmidt from HI MS wins poster prize
HI MS scientist Christina Schmidt, together with her co-authors from Forschungszentrum Jülich, wins the poster prize at the battery conference "Kraftwerk Batterie - Advanced Battery Power".
11 April 2022 – With her poster, Christina Schmidt from Helmholtz Institute Münster (HI MS; IEK-12) of Forschungszentrum Jülich presented a new method for measuring transport properties of battery components. Together with her Jülich co-authors Liudmila Fischer and Dr Stefan Baumann from IEK-1, Prof. Dr Joachim Mayer and Dr Ke Ran from ER-C, and Dr Kerstin Neuhaus from HI MS, she convinced the jury of participants and battery experts at the symposium "Kraftwerk Batterie / Advanced Battery Power" – she won the third prize in the poster competition. It is endowed with 500 euros.
Determination of Transport Properties of Active Materials
The prize-winning poster deals with two-phase composites as materials for oxygen conducting membranes. Central to this is the development of a new measurement method that combines polarisation and subsequent determination of the surface material using an atomic force microscope (AFM).
The researchers can use the measurement to determine how effectively the oxygen ions are transported through the composite material. What is special here is that a diffusion coefficient is determined for a specific location of the material that is in the nano range.
"The method can be transferred to the investigation of transport processes in electrode materials or in hybrid electrolytes of a lithium-ion battery, as it enables the determination of local diffusion coefficients for lithium ions at individual particles of the active material," Schmidt explains. The larger the coefficient, the more mobile the lithium ions.
Schmidt's poster is titled "Combined Polarisation-KPFM Method to Determine Changes of the Surface Potential of Ceria-Spinel-Based Dual Phase Composites" and is part of the DFG-funded project "The Role of Interfaces in Multiphase Ceria-Based Membranes for Use in Membrane Reactors".
Poster Video Award for the Presentation of a Sustainable Co-additive
For his presentation on "Dual Lithium Salts Mediated Lithium Transfer in Viscous Cellulose Acetate Gel-Polymer Electrolyte", PhD student Adjmal Ghaur from the MEET Battery Research Center of WWU Münster was also awarded the Poster Video Awardof the conference. Together with his co-authors Mika Hellkuhl (former MEET), Dr Tobias Placke (MEET) and Prof. Dr Martin Winter (HI MS and MEET), he posed the question of whether cellulose acetate, which is obtained from natural cellulose, can be used as a sustainable and resource-saving chemical compound in battery cells.
More Than 450 Conference Visitors
After two years in online format, this year's conference "Kraftwerk Batterie - Advanced Battery Power" took place as a hybrid event in Münster. On 29 and 30 March 2022, more than 450 international participants learned about the current state of research on lithium-ion batteries, novel battery systems and innovative materials, from fields of application to production, second life and recycling.
The international event was organised by MEET together with HI MS, the Institute for Power Electronics and Electrical Drives (ISEA) at RWTH Aachen University and Haus der Technik, Essen.
Next year's "Kraftwerk Batterie / Advanced Battery Power" will take place in Aachen on 27 and 28 April.