Solution

Project Category Parameter Item Prototype sample Mass-produced assembly parts
Stacked CCS Maximum length 2000mm 1000mm
Maximum width 400mm 400mm
Insulating material Adhesive-backed polyimide, adhesive-backed PET Adhesive-backed polyimide, adhesive-backed PET
Insulation material thickness

Polyimide: 25 μm–125 μm (yellow, white, black)

PET: 25–125 μm (black, white)

Polyimide: 25 μm–125 μm (yellow, white, black)

PET: 25–125 μm (black, white)

  Laser welding tensile strength

Y-direction tension: 60 N, Z-direction tension: 60 N

Customizable according to customer‑specified design agreements and test validation.

Y-direction tension: 60 N, Z-direction tension: 60 N

Customizable according to customer‑specified design agreements and test validation.

  Maximum operating temperature (°C) 125℃ 105℃
Busbar Maximum busbar thickness 5.0mm 3.0mm
Busbar material

1. Domestic AL1060, European Al1050

2. Nickel-plated copper

1. Domestic AL1060, European Al1050

2. Nickel-plated copper

Busbar machining method Laser cutting or soft-mold die-cutting Hard mold cutting
Surface treatment

Nickel plating: thickness 4–15 μm

Tin plating: thickness 2–5 μm

Epoxy powder coating: thickness 0.3–0.7 mm
Material: Epoxy

Nickel plating: thickness 4–15 μm

Tin plating: thickness 2–5 μm

Epoxy powder coating: thickness 0.3–0.7 mm
Material: Epoxy

Surface roughness Ra1.6, Rz6.3 Ra1.6, Rz6.3
Cleanliness ≤100RFU ≤100RFU
Dimensional tolerance

Length: ±0.20 mm

Width: ±0.20 mm

Aperture: ±0.15 mm

Thickness < 1.0 mm: ±0.05 mm

Thickness > 1.0 mm: ±0.10 mm

Thickness > 1.5 mm: ±10%

Distance from hole center to outer edge: ±0.20 mm

Length: ±0.10 mm

Width: ±0.10 mm

Aperture: ±0.10 mm

Thickness < 1.0 mm: ±0.05 mm

Thickness > 1.0 mm: ±0.10 mm

Thickness > 1.5 mm: ±10%

Distance from hole center to outer edge: ±0.10 mm