Manufacturing Process

Manufacturing Process

Step-by-Step Process Overview

1 Electrode Preparation

Mix active materials, binders, and solvents
Coat onto copper (anode) or aluminium (cathode)
Dry and compress

2. Cell Assembly (Depends on Form Factor)

Stack or wind electrodes
Insert separators
Fill with electrolyte
Seal pouch, prismatic, or cylindrical casings

3. Formation and Testing

Initial charging to form SEI layer
Thermal and capacity testing
Aging and safety checks

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Battery Cell Manufacturing Flow

Four Cell Types Explained

Type	Unique Process Step	Complexity
Cylindrical	Laser welding caps	Medium
Prismatic	Folding or stacking with tabs	High
Pouch	Vacuum sealing	Medium
Coin	Pressing electrodes	Low

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Case Study: Tesla’s Shift from NCA to 4680 NMC

CATL optimized prismatic LFPs for cost and safety, gaining large shares in EVs for brands like Tesla (China), BYD, and Hyundai.