- Main results achieved -
Nanomaterials and nano-inks
*Development of a new, efficient synthesis method for copper nanoparticles
*Formulation of copper nano-inks, adapted for inkjet printing, reaching very high conductivity after post-processing
*Formulation of copper nano-inks for screen printing and for inkjet printing, with commercial nano-Cu powders
*Development of a synthesis method for high performance nano-LFP and nano-NMC cathode materials
*Formulation of water-based nano-inks for Li-ion cathodes
*Validation of carbon inks as an anode material in Li-ion battery systems
*Formulation of gelled electrode inks containing electrolyte for aerosol jetting
*In-depth characterization and database generation of NMC material by XRD
Pilot lines
*Installation of four pilot lines for the production of nanomaterials (Cu, LFP, NMC) and the formulation of nano-inks based on those materials
*Production of pilot batches of nano-LFP powder (300 kg), nano-NMC ink (150 kg), nano-LFP ink (150 kg), nano-Cu ink (2 kg) and nano-graphite ink (270 kg)
Printed Li-ion batteries
*Development of an inline laser curing system for conductive nano-inks during inkjet printing
*Printing of cathode and anode material by screen printing (stacked battery) and by aerosol jetting (interdigitated battery)
*Proof-of-concept for dispenser and inkjet printing of the anode and cathode material onto the current collector for Li-ion batteries
*Proof-of-concept of the interdigitated battery design
*Good battery performance achieved for printed stacked Li-ion batteries
*Definition of a route for mass production of screen printed Li-ion batteries on Roll2Roll machines for high volume-low cost production
Environment – Health – Safety
*Study of the human toxicity and the ecotoxicity of NMC and LFP
*Workplace measurements for the production and handling of nanomaterials
*Recommendations regarding safe handling, production and use of nanomaterials and nano-inks
*LCA studies for nanomaterials, nano-inks and printed batteries
Business Plans
*Analysis of the market potential for printed rechargeable batteries and related nano-inks
*Calculation of the cost of ownership and return on investment for the BASMATI pilot lines
- Exploitation of Results -
The status of the Key Exploitable Results is evaluated:
*KER #0 - Pilot line for producing nanomaterials and inks [Umicore, Prayon, Genes’Ink & Gwent] > Status: Available for toll research and manufacturing, and for research projects
*KER #1 - Nanosized inorganic material suitable for making functional inks
-KER #1A - NMC nanopowders [Umicore & CEA] > Status: Available at TRL6
-KER #1B - Cu and Ni nanopowders [Genes’Ink & CEA] > Status: Cu NP are available at TRL6; Ni NP are not available
-KER #1C - LFP nanopowders [Prayon & LEITAT] > Status: Available at TRL7
*KER #2 - Functional inks
-KER #2A - Nano Cu ink [Genes’Ink & Gwent] > Status: Available at TRL6, thermal post-processing under normal atmosphere
-KER #2B - Aqueous binder products [JSR] > Status: Commercially available
-KER #2C - Characterization service for printed layers [AUTh] > Status: Available for research projects
-KER #2D - Nano NMC inks and nano LFP inks [Umicore, Prayon, Gwent, CEA & LEITAT] > Status: Available at TRL6, water-based
*KER #3 - Flexible printed Li-ion batteries [Varta, CEA & LEITAT] > Status: Available at TRL4
*KER #4 -Services on nanosafety [Leitat & CEA] > Status: Commercially available
At the end of the project, two more results are identified:
* Electrochemically active composites in polymer/plastic-crystal gelled matrix [CEA]
* Inline laser sintering of nano-Cu ink during inkjet printing [Microdrop]
Both innovations are in an early stage of development, and still require a significant development path.