GUTBatt

Process development for scalable material structuring and calender-based dry electrode production for lithium-ion batteries with liquid and solid electrolytes

Project description:

Solvent-based production of electrodes is the state of the art including a drying step. A central element of the dry electrode production is the elimination of toxic solvents as NMP and energy-intensive drying step.

The holistic development of dry coating electrodes for lithium-ion batteries (LiB) and lithium-polymer solid electrolyte batteries (SSB) is investigated in „GUTBatt“. Essential interrelationships along the entire process chain are considered, looking into material- and process specific aspects. This enables to develop a concept for an interconnected pilot plant. The main goal is the production of dry coated anodes and cathodes for lithium-ion batteries and furthermore for SSB.

The sub-goals of the project GUTBatt include:

• Identification of process-structure-property relationships
• Scaling rules for mixing, metering and calendering processes
• Establishment of (material-side) transfer rules (LIB to polymer SSB)
• Production of silicon containing electrodes (pilot scale)
• Establishment of a network plan of the variable process route of dry electrode production
• Cost/benefit analysis and its evaluation

Contact:

Franziska Beverborg