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The Main Goals Are to Develop:
Manufacturing Objectives
Material Objectives
Cathode consisting of high-Ni content NMC811 particles, protected with e.g., LiTiOx ALD coating, and utilizing BSPE, CNTs and/or poly (3,4-ethylenedioxythiophene) (PEDOT) derivative redox polymers as alternative conducting additive/binder. The redox polymers would substitute/replace CNTs with same/higher electronic conduction while not modifying cathodic potential.
Thin Li-metal anode and a protective inorganic solid electrolyte barrier
films to:
- prevent SSPE reduction at the anode interface
- enable handling of the Li metal anode under dry room conditions
without degradation - prevent dendrite growth during cycling
Solid polycarbonate-based electrolyte:
- )blended with the cathode material (not cross-linked to enable high conductivity)
- coated on the cathode (cross-linked to enable high stability). Discrete
block co-oligomer interlayers to ensure compatibility between SSPE and
cathodes/anodes and enable easy recycling by delamination of them
Digitalization Objectives
Inline inspection with tools including high-resolution imaging by laser, electrochemical impedance spectroscopy (EIS), inline optical imaging, and X-ray imaging, and their integration into the pilot lines: Develop inline inspection units to detect defects in the electrolyte, faulty particles polluting the electrode, and surface electrochemical performance issues before assembly proof of concept.
Reach zero-defect manufacturing by integrating the new inspection tools into an inline process control and optimization system:
- Detect and classify different types of defects at the surface and electrode performance with the tools of the previous objective.
- Build a digital twin of the (pilot) production line and develop a closed loop control and optimization to get towards a zero-defect manufacturing.
- Install the closed-loop control to at least one of the pilot manufacturing lines.
Extend the digital twin for cost calculations and cost comparison between a Gen. 2b and a SOLiD battery cell. A cost comparison between a Gen. 2b and a SOLiD battery cell will be delivered.
Validation and Sustainability
Objectives
- Development of project specific
Life Cycle Assessment (LCA) methodology based on life-cycle thinking including three LCA dimensions: environmental LCA, life-cycle costing, and social LCA. Recycling-by-design of materials and interfaces. - Increased energy density for a Li metal battery
- Increased cycle life of Li metal batteries
- Increased safety due to protective interfaces, validated by abuse tests