Blockchain architecture for process-level traceability of continuous mixing process in battery cell production

The production of lithium-ion battery cells is highly dependent on the precise mixing of raw material components to achieve the desired electrochemical properties of the slurry. The need to track production parameters and traceability within the mixing process is becoming increasingly important for process optimization and battery suitability. However, implementing an effective traceability system for the continuous slurry mixing process is a major challenge. Currently, there is no reliable solution for traceability in the continuous mixing process. The proposed solution involves the strategic integration of blockchain technology at the process level. A morphological box for the development of a blockchain as well as a blockchain for the continuous mixing process is presented. It is shown how data communication from a programmable logic controller (PLC) can be directly taken into the blockchain without a centralized intermediary system. This system not only fulfills the requirements of the battery passport and regulatory compliance, but also promotes a higher level of operational transparency throughout the battery cell production and especially in the mixing process.