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The base value for the laboratory battery production process is to be determined on the basis of the first battery batch produced (approx. 50 batteries).
The base value for the laboratory battery production process is to be determined on the basis of the first battery batch produced (approx. 50 batteries).
'''Current state'''
'''Current state'''
By using the reference process in the forming process, the energy consumption and the associated energy costs are already reduced compared to the original process. Energy consumption is thus reduced by approx. 2% (20% reduction in energy consumption in the forming process, 9.4% share of forming in total energy consumption).
By using the reference process in the forming process, the energy consumption and the associated energy costs are already reduced compared to the original process. Energy consumption is thus reduced by approx. 2% (20% reduction in energy consumption in the forming process, 9.4% share of forming in total energy consumption).
'''Target value'''
'''Target value'''
Electrolyte consumption of 4 ml per 870 mAh cell
Electrolyte consumption of 4 ml per 870 mAh cell
'''Current state'''
'''Current state'''
No improvement achieved yet, as laboratory battery production has not yet started.
No improvement achieved yet, as laboratory battery production has not yet started.
'''Target value'''
'''Target value'''
The material consumption per unit should be reduced to by approx. 12.5%. The target value for electrolyte consumption is 3.5 ml per 870 mAh cell.
The material consumption per unit should be reduced to by approx. 12.5%. The target value for electrolyte consumption is 3.5 ml per 870 mAh cell.
====<u>Share of digital interfaces</u>====
====<u>Share of digital interfaces</u>====
*Share of data points that are recorded for a single cell.
*Share of data points that are recorded for a single cell.
*Share of data points that is assigned to a single cell without human intervention (automatically).
*Share of data points that is assigned to a single cell without human intervention (automatically).
<math>KPI2=\frac{\text{no. recorded data points}{\text{no. considered parameters}}\times\frac{\text{no. assigend data points}{\text{no. considered parameters}}</math>
'''Base value'''
'''Base value'''
The base value stems from the data point assessment prior to installation of additional sensors and the total number of data points included in the project's process impact matrix.
*Recorded data points: 52%
*Automatically assigned data points: 23%
'''Current state'''
'''Current state'''
*Recorded data points: 80%, improvement by 54%
*Automatically assigned data points: 40%, improvement by 74%
'''Target value'''
'''Target value'''
*Recorded data points: 92%
*Automatically assigned data points: 90%
===Variable production costs===
===Variable production costs===
Production costs are made up of several variable costs. In the context of the project, the energy, material, scrap and manufacturing costs are considered.
<math>KPI3=\frac{\text{total var. production costs}{\text{costs for flawless batteries}}</math>
'''Base value'''
The base value stems from the assumption of having 10% scrap products (KPI 3 ≈ 1.11). The base value for the laboratory battery production process is to be determined on the basis of the first battery batch produced (approx. 50 batteries).
'''Current state'''
No improvement achieved yet, as laboratory battery production has not yet started.
'''Target value'''
The variable production costs should be reduced by approx. 5% (KPI 3 ≈ 1.05).
