CU-LI FOIL Lithium Metal Copper Current Collector

CU-LI lithium-on-copper composite foil is a laminated anode current collector designed for lithium-metal and solid-state battery research. It combines battery-grade copper foil (as the electronic current collector) with a bonded lithium metal layer (as the active anode), enabling fast and repeatable electrode preparation without handling loose lithium foils for every build.

How it works

In a typical cell stack, the copper layer provides low-resistance electron transport to the tab/lead, while the lithium layer serves as the lithium source and plating/stripping interface. The pre-laminated structure improves assembly consistency, supports high-current testing, and reduces variability caused by wrinkles, poor contact, or uneven lithium thickness during manual lamination.

 

Configurations and key specifications

Single-side lithium coated (Li/Cu):

• Li thickness: 0.021 mm
• Cu thickness: 0.01 mm
• Total (after attachment): 0.031 mm
• Li width: 80.09 mm; Cu width: 100 mm
• Li edge offset vs Cu: 10.0 ± 1.0 mm (each side)
  
  

Double-side lithium coated (Li/Cu/Li):

• Li thickness (each side): 0.021–0.022 mm
• Cu thickness: 0.010 mm
• Total (after attachment): 0.053–0.054 mm
• Li width: 80.11 mm; Cu width: 100.00 mm
• Li edge offset vs Cu: 10.0 ± 1.0 mm (each side)

Compatibility and applications

• Lithium-metal half-cells and full cells, solid-state batteries, Li plating/stripping studies
• Electrode punching and lamination workflows for coin, pouch, or lab-scale stacks
• Pairs well with potentiostats/galvanostats and battery cyclers for controlled formation and cycling at defined current densities
  
  

Why source through ScienceGears

ScienceGears supports AU/NZ researchers with correct configuration selection (single vs double-side), handling guidance for reactive lithium materials, and integration advice with electrochemical test systems and cell hardware for reproducible battery testing.