SIGMAclad
Li-Ion battery - cell connector
Advantages
- Significantly higher electrical and thermal conductivity than Nickel or Stainless Steel
- Good punching and bending properties
- Very good corrosion resistance
- Resistance welding, laser welding, ultrasonic welding and wire bonding
- Solderable surface (no plating required)
- Scalable Copper proportion to meet application-specific requirements
Multilayer with Nickel
Coin cell battery
Advantages
- Both as anode cap and cathode can
- Higher energy
- Smaller cells
- Copper-Stainless Steel-Nickel clad acts as an anode current collector
- Corrosion-resistant Nickel exterior, strong Stainless Steel core interior, and Copper layer exterior for cell chemistry compatibility for mercury-free applications
Inlay Al-Cu
Edgelay Al-Cu
Li-Ion battery module connector
Advantages
- Good contactability
- No contact resistance between Aluminum and Copper, no loss of performance
- Weight advantage
Nickel-Stainless Steel-Nickel
Inoc-Cu-Inox
Bipolar plates
Advantages
- Clad Metals:
- Increase in corrosion resistance and lifespan
- Depending on the medium, Titanium, Nickel or other metals as corrosion protection can be selected
- Vibration protection
- Increased stiffness due to Stainless Steel
- Faster and more uniform heating
- Avoidance of hotspots
- Weight reduction
- Etched parts:
- Realization of complex designs (channel structures)
- Cost-effective tool production/design
- Burr-free, stress-free, clean & flat parts
- Machining of thick starting materials and thinning them out
- Channels with a depth of 325 µm in 400 µm material are producible
- Wide variety of metal grades
Al-Cu
Side-to-Side Al-Cu
Li-Ion Battery for cell connector
Advantages
- Good contactability
- No contact resistance between aluminum and copper, no loss of performance
- Weight advantage
- Best electrical conductivity
- The copper side can be electroplated for corrosion protection and for joining
Aluminum Copper
Pouch cell
Advantages
- Good contactability
- No contact resistance between aluminum and copper, no loss of performance
- No electrochemical corrosion
Copper-Nickel
Cylindrical Cell
Advantage
- Outstanding electrical and thermal conductivity (4x better than nickel)
- Very good connectivity
- Optimal corrosion resistance
