Manufacturing

Transparency in Lithium-Ion Battery Manufacturing

Battery Cell Grouping

To boost electrode slurry uniformity:

Optimize viscosity, ensure strong shearing during mixing (use high-shear mixers), add materials stepwise (binder solution first, then conductive agent, lastly active material slowly), and degas under vacuum. Control temperature and mixing time precisely.

• To avoid bubbles in slurry mixing:
• Mix slowly to minimize air entrainment.
• Avoid vortex formation (use baffled tanks).
• Use defoamers if compatible.
• Degas under vacuum if critical.
• To ensure uniform electrode coating:
• Control slurry viscosity
• Optimize coating speed
• Maintain precise gap/doctor blade
• Ensure consistent drying
• Use homogeneous slurry mixing
• To slit lithium battery electrodes:
• Use precision slitting machinery
• Maintain optimal tension to prevent wrinkles
• Wear proper PPE (gloves, goggles)
• Ensure blades are sharp and contamination-free
• Control environment to avoid metal dust
• Monitor slit width tolerance (±0.1mm)
• Inspect edges for burrs & defects post-slit

Aging stabilizes batteries by forming a stable Solid-Electrolyte Interphase (SEI) layer. This protective barrier reduces harmful side reactions between the electrode and electrolyte. However, it also consumes active lithium, lowering capacity.