Innovative solutions for tricky problems
The University of Jena will be presenting several research projects at the Hannover Messe from 31 March to 4 April 2025
A team from the University of Jena takes water samples - a new type of digital sensor for measuring the ‘chemical oxygen demand’ of water will be presented at the Hannover Messe.
- Research
- Knowledge Transfer and Innovation
Published: | By: Stephan Laudien
The increasing electrification of the chemical industry and the transport sector is increasing the global demand for sustainable and regionally available starting materials for electrochemical energy storage systems. Prof. Dr Martin Oschatz and his team at the Institute of Technical and Environmental Chemistry at Friedrich Schiller University Jena are therefore focusing on lignin as a starting material for battery electrodes. Lignin is a natural component of plant cell walls and is produced as a waste product in the paper industry, among other things. Through targeted chemical functionalisation, it can be used as a versatile and promising source of carbon materials. At this year's Hannover Messe, Prof. Oschatz and his team will be showcasing solid-state batteries that have a higher energy density, improved operational safety and even a longer service life thanks to the use of solid electrolytes. Visitors will also be able to see a composite material made from a porous carbon and a polymer with a high affinity for carbon dioxide, which can be used to bind carbon dioxide and reduce it electrocatalytically. This material could be used to capture carbon dioxide already emitted from the atmosphere.
The University of Jena is exhibiting innovative organic batteries at the Hannover Messe - here a redox flow battery.
Image: Jens Meyer (University of Jena)Organic batteries with a wide range of applications
Organic batteries are another sustainable way of storing electrical energy. They are being developed at the Institute of Organic Chemistry and Macromolecular Chemistry at the University of Jena. The research team led by Prof. Dr Ulrich S. Schubert is cooperating with the Helmholtz Institute HIPOLE Jena. The key feature of this type of battery is the active materials made from organic compounds (polymers), which can replace potentially scarce inorganic electrode materials such as lithium cobalt oxide. The resulting increased environmental compatibility, simpler processing methods and mechanical flexibility open up a wide range of applications for organic batteries, for example as small, flexible batteries for smart clothing or packaging.
Innovative water sensors and Goethe in the rain
The cultural heritage of mankind is exposed to various threats worldwide. One way of making it accessible in new ways and preserving it at the same time is comprehensive digitalisation. Dr Andreas Christoph from the Thuringian University and State Library (ThULB) in Jena is also demonstrating these possibilities with his team at the Hannover Messe. "We are producing a true-to-scale copy of a bust of Goethe from 1820 in front of an audience using a 3D printer," says Andreas Christoph. The challenge is to select the right material because the replica is to be set up outside. The bust will be placed in front of the Goethe Laboratory at the University of Jena on Fürstengraben. Goethe will stand there in the rain from time to time - without being damaged.
A new type of digital sensor for measuring the "chemical oxygen demand" of a body of water is presented in Hanover by the team from the Thuringian Water Innovation Cluster (ThWIC). This value indicates the amount of oxidisable substances in the water and therefore the degree of pollution. According to ThWIC spokesperson Prof. Dr Michael Stelter, this is the first time that digital measurement of water quality is possible directly at the water, eliminating the need for laboratory tests. The innovative sensor is being developed in cooperation with several small and medium-sized companies. There will also be a preview of how the sensor can be used to determine the nitrate value in water, says Prof. Stelter. The second eye-catcher for trade fair visitors will be the so-called "technical kidney". This innovative idea uses 3D structures for water purification that are inspired by the human kidney. Combined with ceramic separation membranes, the energy required for water purification can be greatly reduced. The prototype is being developed jointly with the Ernst Abbe University of Applied Sciences in Jena.
The University of Jena can be found with its exhibits at the "Research for the Future" stand in Hall 2, Stand C24. Further information on all projects can be found at: www.forschung-fuer-die-zukunft.de/hannovermesse2025.htmlExternal link (German only).