How does the manufacturing process affect the performance of battery cells?

In addition to the materials used, the manufacturing processes, their precision and process atmospheric conditions have a significant influence on the performance of the battery cells, such as ageing, safety and energy density. In our pilot line for battery cell production, the materials pass through seven stations from start to finish.

What is battery cell manufacturing?

Battery cell manufacturing is one fluid motion: From mixing the anode and cathode formulation to slurry, to coating, drying, calendering, stacking and winding, to placing the cells in the battery case. What counts here is a smooth process, the right timing and precise movements of rollers, rolls, conveyor belts and tools of various kinds.

What are the production steps in lithium-ion battery cell manufacturing?

Production steps in lithium-ion battery cell manufacturing summarizing electrode manufacturing, cell assembly and cell finishing (formation) based on prismatic cell format. Electrode manufacturing starts with the reception of the materials in a dry room (environment with controlled humidity, temperature, and pressure).

Why is battery production a cost-intensive process?

Since battery production is a cost-intensive (material and energy costs) process, these standards will help to save time and money. Battery manufacturing consists of many process steps and the development takes several years, beginning with the concept phase and the technical feasibility, through the sampling phases until SOP.

How a battery is developed?

The development of new battery technologies starts with the lab scale where material compositions and properties are investigated. In pilot lines, batteries are usually produced semi-automatically, and studies of design and process parameters are carried out. The findings from this are the basis for industrial series production.

How are battery anodes manufactured?

Anode manufacturing methods differ depending on the anode selected in the cell design. If lithium metal is selected as the anode, it will generally be outsourced from lithium foil suppliers, and special attention must be paid to the foil thickness, which affects the total energy density of the battery cell.