Sources and links on page 341 (4)
Links embedded in the original report PDF, including citations and other references. These destinations have not been independently reviewed. Links open in a new tab.
- https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/batt.202400127
- https://drive.google.com/drive/folders/1jHxeuVqIi8T79Ws7Wmu9it7OW1qA4LIU
- https://www.ffb.fraunhofer.de/content/dam/ipt/forschungsfertigung-batteriezelle/Bilder/presse-medien/whitepaper-ramp-up/Whitepaper_Mastering%20Ramp-up%20of%20Battery%20Production.pdf
- https://www.pdf.com/battery
Text on page 341
Electrode To Cell Traceability - Challenges & Methods Upstream variations, such as mass loading inconsistencies, can impact cell cycling stability. However, variations in batch slurry mixing and roll-to-roll electrode manufacturing are difficult to trace during downstream unit cell assembly.
CYCLING INSTABILITY CAN BE CAUSED BY LOCALLY OUT-OF-SPEC LOADING & N/P RATIO In-spec N/P ratio Out-of-spec N/P ratio
Current Method: Batch-level (ex. total slurry viscosity, composition) and roll-to-roll level (ex. mean mass loading, thickness) aggregate quality metrics are tied to child cells; localized traceability is lost. Being Developed: Periodic data matrix codes (DMCs) that are laser-marked on electrode rolls encode localized quality metrics that can be parsed during cell assembly. This improves the resolution of loading & N/P traceability from roll-basis to individual cells. SLURRY MIXING BATCH PROCESS
ELECTRODE MANUFACTURING ROLL-TO-ROLL PROCESSES
Sources: Chemistry Europe, Advanced Science News, Mastering Ramp-up of Battery Production
DMC ON EACH UNIT ELECTRODE CARRIES LOCALIZED MASS LOADING DATA
CELL ASSEMBLY UNIT PROCESSES
Extracted from the PDF; charts and images may read imperfectly.
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Page 341 · 11/23