Software

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 OUTOFSPEC 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 ROLLTOROLL 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.