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GUTBatt

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

GUTBatt

Project Information:

  • 3 years (01.07.2023 – 31.06.2026)
  • BMBF  (03XP0544E)
  • Funding: 789.199 € (TUBS)

Project Partner:

  • Institute for Particle Technology (iPAT), TU Braunschweig
  • Custom Cells Itzehoe GmbH
  • Matthews International GmbH Department Saueressig Engineering
  • SSL Energie GmbH
  • Zeppelin Systems GmbH
  • Associated Partner: Chemours Deutschland GmbH

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
franziska.beverborg(at)tu-braunschweig.de

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