In conclusion, Battery pack production is a complex and multifaceted process that requires meticulous attention to detail, strict quality control, and a commitment to safety.
This process is about making modular batteries with manufactured battery cells and putting them into a pack. First, battery cells are fixed side by side in a module case. The cells are connected and when a cover is put on the case, a module is complete.
The manufacturing process of lithium-ion batteries consists largely of 4 big steps of electrode manufacturing, cell assembly, formation and pack production, in that order. Each step employs highly advanced technologies. Here is an image that shows how batteries are produced at a glance. STEP 1.
Battery ingredients (cathode, anode, separator, electrolyte) are placed in the former and electrolytes are injected and gas is stored in the latter. The ingredients are piled up in the electrode pocket using “lamination and stacking” method and electrolyte is injected into the air pocket to reach even pores in the electrode pocket.
When the electrolyte soaks into the inside of the battery and ions move smoothly between the cathode and anode, the battery is charged to a certain level. (* The formation process differs by manufacturers.) A pouch battery may form gas in it during the repeated aging, charging, and recharging.
CMB’s battery pack designer gives priority to the following three most common battery cells for the battery pack design: INR (Ternary Lithium), LFP (Lithium Iron Phosphate Chemistry) and LiPo (Lithium Polymer).