PROCESS TECHNOLOGY TRANSFER FOR AQUEOUS ANODE MANUFACTURING: From Conventional Mixing and Coating to Extruder Casting

Andreas Gigl; Bernd Eschelmüller; Lukas Neidhart; Miljana Vuksanovic; Katja Fröhlich

PROCESS TECHNOLOGY TRANSFER FOR AQUEOUS ANODE MANUFACTURING: From Conventional Mixing and Coating to Extruder Casting

Titel in Übersetzung: PROZESSTECHNOLOGIETRANSFER FÜR DIE HERSTELLUNG VON WÄSSRIGEN ANODEN

Battery Technologies

Publikation: Posterpräsentation ohne Beitrag in Tagungsband › Posterpräsentation ohne Eintrag in Tagungsband

Abstract

As part of the Horizon Europe project “BatWoMan” (Grant Agreement no. 101069705), AIT has been tasked with transferring one of the widely used electrode manufacturing processes, in this case using a mixer to prepare a slurry and coating this slurry onto a substrate foil in a coating machine, towards producing an electrode via an extruder. This approach theoretically decreases the time and energy consumption significantly, which is one of the main objectives of this EU-project.

Instead of a two-step process using two different machines, an extruder mixes the components for the slurry and provides a film through a slot die installed at the end of the extruder onto a substrate foil. Therefore, considering the time required to mix a slurry, the process time can be significantly reduced. By using an unwinder beneath the slot die nozzle, the produced slurry can be continuously coated onto a substrate foil as a thin film.

The second major advantage of the extrusion process, reducing the energy consumption, is mainly a result of not using any drying method compared to the coating process in a coating machine. Due to the different mixing process, the slurry would come out of the slot die and onto the substrate foil to not needing any additional drying. Comparing the necessary drying parameters in a coating machine with not using any drying at all gives a huge advantage in terms of reducing the energy input for this production step.

Additionally, the extruder process is a continuous process, which means that the process proceeds as long as the machine is provided with the necessary input in the form of powders and binder solution.
The results of this project include the input and measured process parameters, the rheological measurements of the produced slurries, and the properties of the coating.

This work illustrates the gradual improvements and the parameters, as well as the results and comparison with the initial manufacturing process.

Titel in Übersetzung	PROZESSTECHNOLOGIETRANSFER FÜR DIE HERSTELLUNG VON WÄSSRIGEN ANODEN
Originalsprache	Englisch
Publikationsstatus	Veröffentlicht - 27 Mai 2025
Veranstaltung	5th Graz Battery Days: A Sustainable Battery Value Chain as Competitive Advantage for European Economy? - Graz, Österreich Dauer: 26 Mai 2025 → 28 Mai 2025 https://www.varta-ag.com/en/graz-battery-days

Konferenz

Konferenz	5th Graz Battery Days
Land/Gebiet	Österreich
Stadt	Graz
Zeitraum	26/05/25 → 28/05/25
Internetadresse	https://www.varta-ag.com/en/graz-battery-days

Research Field

Sustainable and Smart Battery Manufacturing

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title = "PROCESS TECHNOLOGY TRANSFER FOR AQUEOUS ANODE MANUFACTURING: From Conventional Mixing and Coating to Extruder Casting",

abstract = "As part of the Horizon Europe project “BatWoMan” (Grant Agreement no. 101069705), AIT has been tasked with transferring one of the widely used electrode manufacturing processes, in this case using a mixer to prepare a slurry and coating this slurry onto a substrate foil in a coating machine, towards producing an electrode via an extruder. This approach theoretically decreases the time and energy consumption significantly, which is one of the main objectives of this EU-project. Instead of a two-step process using two different machines, an extruder mixes the components for the slurry and provides a film through a slot die installed at the end of the extruder onto a substrate foil. Therefore, considering the time required to mix a slurry, the process time can be significantly reduced. By using an unwinder beneath the slot die nozzle, the produced slurry can be continuously coated onto a substrate foil as a thin film. The second major advantage of the extrusion process, reducing the energy consumption, is mainly a result of not using any drying method compared to the coating process in a coating machine. Due to the different mixing process, the slurry would come out of the slot die and onto the substrate foil to not needing any additional drying. Comparing the necessary drying parameters in a coating machine with not using any drying at all gives a huge advantage in terms of reducing the energy input for this production step. Additionally, the extruder process is a continuous process, which means that the process proceeds as long as the machine is provided with the necessary input in the form of powders and binder solution. The results of this project include the input and measured process parameters, the rheological measurements of the produced slurries, and the properties of the coating. This work illustrates the gradual improvements and the parameters, as well as the results and comparison with the initial manufacturing process.",

keywords = "Process innovation, water-based electrodes, extrusion",

author = "Andreas Gigl and Bernd Eschelm{\"u}ller and Lukas Neidhart and Miljana Vuksanovic and Katja Fr{\"o}hlich",

year = "2025",

month = may,

day = "27",

language = "English",

note = "5th Graz Battery Days ; Conference date: 26-05-2025 Through 28-05-2025",

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TY - CONF

T1 - PROCESS TECHNOLOGY TRANSFER FOR AQUEOUS ANODE MANUFACTURING

T2 - 5th Graz Battery Days

AU - Gigl, Andreas

AU - Eschelmüller, Bernd

AU - Neidhart, Lukas

AU - Vuksanovic, Miljana

AU - Fröhlich, Katja

PY - 2025/5/27

Y1 - 2025/5/27

N2 - As part of the Horizon Europe project “BatWoMan” (Grant Agreement no. 101069705), AIT has been tasked with transferring one of the widely used electrode manufacturing processes, in this case using a mixer to prepare a slurry and coating this slurry onto a substrate foil in a coating machine, towards producing an electrode via an extruder. This approach theoretically decreases the time and energy consumption significantly, which is one of the main objectives of this EU-project. Instead of a two-step process using two different machines, an extruder mixes the components for the slurry and provides a film through a slot die installed at the end of the extruder onto a substrate foil. Therefore, considering the time required to mix a slurry, the process time can be significantly reduced. By using an unwinder beneath the slot die nozzle, the produced slurry can be continuously coated onto a substrate foil as a thin film. The second major advantage of the extrusion process, reducing the energy consumption, is mainly a result of not using any drying method compared to the coating process in a coating machine. Due to the different mixing process, the slurry would come out of the slot die and onto the substrate foil to not needing any additional drying. Comparing the necessary drying parameters in a coating machine with not using any drying at all gives a huge advantage in terms of reducing the energy input for this production step. Additionally, the extruder process is a continuous process, which means that the process proceeds as long as the machine is provided with the necessary input in the form of powders and binder solution. The results of this project include the input and measured process parameters, the rheological measurements of the produced slurries, and the properties of the coating. This work illustrates the gradual improvements and the parameters, as well as the results and comparison with the initial manufacturing process.

AB - As part of the Horizon Europe project “BatWoMan” (Grant Agreement no. 101069705), AIT has been tasked with transferring one of the widely used electrode manufacturing processes, in this case using a mixer to prepare a slurry and coating this slurry onto a substrate foil in a coating machine, towards producing an electrode via an extruder. This approach theoretically decreases the time and energy consumption significantly, which is one of the main objectives of this EU-project. Instead of a two-step process using two different machines, an extruder mixes the components for the slurry and provides a film through a slot die installed at the end of the extruder onto a substrate foil. Therefore, considering the time required to mix a slurry, the process time can be significantly reduced. By using an unwinder beneath the slot die nozzle, the produced slurry can be continuously coated onto a substrate foil as a thin film. The second major advantage of the extrusion process, reducing the energy consumption, is mainly a result of not using any drying method compared to the coating process in a coating machine. Due to the different mixing process, the slurry would come out of the slot die and onto the substrate foil to not needing any additional drying. Comparing the necessary drying parameters in a coating machine with not using any drying at all gives a huge advantage in terms of reducing the energy input for this production step. Additionally, the extruder process is a continuous process, which means that the process proceeds as long as the machine is provided with the necessary input in the form of powders and binder solution. The results of this project include the input and measured process parameters, the rheological measurements of the produced slurries, and the properties of the coating. This work illustrates the gradual improvements and the parameters, as well as the results and comparison with the initial manufacturing process.

KW - Process innovation

KW - water-based electrodes

KW - extrusion

M3 - Poster presentation without proceedings

Y2 - 26 May 2025 through 28 May 2025

ER -

PROCESS TECHNOLOGY TRANSFER FOR AQUEOUS ANODE MANUFACTURING: From Conventional Mixing and Coating to Extruder Casting

Abstract

Konferenz

Research Field

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