Directory profiles · Battery Business Directory
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Cell & Pack Manufacturing
Manufacturing Process Map | 2. Cell Assembly | Pouch
Manufacturing Process Map | 2. Cell Assembly | Pouch Tab Welding
Tabs are ultrasonically welded to the jelly rolli
Pouch Forming
Challenges
Making a case by pressing a film
corner cracking
20% of total manufacturing cost
Challenges
foil damage; coating adhesion
parts/min
speed
scrap rate
Challenges
positioning accuracy of anode & cathode sheets (alignment); speed (affects positioning)
Lamination & Stacking/Winding Lamination: laminating layers to maintain positional integrity Stacking: stacking layers of electrode & separator. Note that wound pouch cells also exist.
Electrolyte Injection
Filling the electrode pocket with electrolyte through metered dispensing
Challenges
dosing and distribution accuracy of the electrolyte in the cell; No electrolyte residues in the sealing seam; seal integrity
*Graphics courtesy of LG Energy Solution. Reproduced with permission.
Source: LG Energy; BCG; RWTH PEM
Extracted from the PDF; charts and images may read imperfectly.
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