Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Battery Production: Laser Light instead of Oven-Drying and Vacuum Technology

05.10.2015

At the exhibition BATTERY + STORAGE as part of WORLD OF ENERGY SOLUTIONS 2015 in Stuttgart, the Fraunhofer Institutes for Laser Technology ILT and for Ceramic Technologies and Systems IKTS will be showing how laser technology can be used to manufacture batteries both cost- and energy-efficiently.

In the truest sense, it’s all about watts at the Dresden-based Fraunhofer Institute for Ceramic Technologies and Systems IKTS and the Aachen-based Fraunhofer Institute for Laser Technology ILT. The joint project “DRYLAS - Laser-based Drying of Battery Electrode Slurries” focusses on the energy-efficient drying of electrode layers, so-called slurries, which are applied in a wet-chemical process to the current-conducting metal foils during battery production.


In the project ProSoLitBat, funded by BMBF, a roll-to-roll process chain has been generated for the continuous production of lithium solid electrolyte batteries.

© Fraunhofer ILT, Aachen, Germany


Scientists of the Fraunhofer Institutes IKTS and ILT have halved the energy consumption during drying of the layers applied with a wet-chemical process thanks to a laser-based inline drying module.

© Fraunhofer ILT, Aachen, Germany

Until now, continuous furnaces have been used, which remove the solvent contained in the slurry during the drying process. Dr. Dominik Hawelka, a scientist at the Fraunhofer ILT, gets to the heart of the reasoning behind this research project: “In these furnaces, the energy deposition is not very efficient as compared to a laser treatment. That is why we have decided to use the very precisely controllable laser radiation as the drying tool for this application.”

Energy consumption halved

The two institutes have designed an in-line process and a fiber-laser based drying module which has already proven itself in initial tests in a so-called roll-to-roll plant of the Fraunhofer IKTS in Dresden. “The laser radiation is absorbed directly in the slurry and minimizes heat losses to the surroundings,” says the physicist. “Our drying process uses about half of the energy that the continuous furnace needs.”

The two institutes have also demonstrated that the fiber-laser dried electrodes can be used to build sound battery cells that work just as flawlessly as components treated conventionally in a continuous furnace.

Continuous production with a roll-to-roll process chain

The Fraunhofer ILT is also using its expertise in laser technology to put photonic process and plant engineering into practice: in particular, in the project ProSoLitBat, funded by the German Federal Ministry of Education and Research (BMBF) and coordinated by SCHMID Energy Systems GmbH from Dunningen.

This project focuses on the industrial, continuous production of lithium, solid-state batteries in thin film technology. The aim of the current project, which will run until 2017, is to make a so-called roll-to-roll process chain viable as an alternative to the vacuum method previously used. The discontinuous, or batch-type vacuum process is extremely complex and costly.

“In contrast, continuous production can produce significantly higher quantities at a lower cost, which will help the solid-state lithium batteries to find wider applications,” explains Dipl.-Ing. Christian Hördemann, a scientist at Fraunhofer ILT. “We have built a pilot plant that works with an inert gas atmosphere, and with it we can now pattern and decollate batteries with integrated ultrafast lasers.” The company SCHMID Energy Systems shall make the process from Aachen ready for series production.

Fraunhofer Battery Alliance at the BATTERY + STORAGE trade fair

You can obtain details on both projects at the booth of the Fraunhofer Battery Alliance (Hall C2 B 41) in the BATTERY + STORAGE exhibition area at the WORLD OF ENERGY SOLUTIONS in Stuttgart. This international trade fair and conference for the convergence of energy generation, storage systems and mobility solutions will take place from October 12 to 14, 2015.

Contact

Dipl.-Ing- Christian Hördemann
Thin Film Processing Group
Telephone +49 241 8906-8013
christian.hoerdemann@ilt.fraunhofer.de

Dr.-Ing. Dominik Hawelka
Micro and Nanostructuring Group
Telephone +49 241 8906-676
dominik.hawelka@ilt.fraunhofer.de

Fraunhofer Institute for Laser Technology ILT
Steinbachstraße 15
52074 Aachen, Germany

Weitere Informationen:

http://www.ilt.fraunhofer.de
https://www.fraunhofer.de/en/institutes-research-establishments/groups-alliances...

Petra Nolis | Fraunhofer-Institut für Lasertechnik ILT

More articles from Trade Fair News:

nachricht Self-illuminating pixels for a new display generation
22.05.2018 | Fraunhofer-Institut für Angewandte Polymerforschung IAP

nachricht “Electricity as a raw material” at ACHEMA 2018: Green energy for sustainable chemistry
16.05.2018 | Fraunhofer-Institut für Umwelt-, Sicherheits- und Energietechnik UMSICHT

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

Im Focus: Computer-Designed Customized Regenerative Heart Valves

Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.

Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...

Im Focus: Light-induced superconductivity under high pressure

A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.

Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Supersonic waves may help electronics beat the heat

18.05.2018 | Power and Electrical Engineering

Keeping a Close Eye on Ice Loss

18.05.2018 | Information Technology

CrowdWater: An App for Flood Research

18.05.2018 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>