Lithium-ion Battery Tabs

Aluminum, Copper & Nickel tab strips and bars for battery packaging

Battery Tab Materials for Lithium-ion Cell Manufacturers

li-ion battery tab diagram

Battery tabs play an important role in lithium-ion cell manufacturing. Typical large format lithium-ion cells use copper for the anode foil (current collector) and aluminum for the cathode foil. A ‘foil-to-tab’ weld is needed to gather all the current collector plates (foils) inside the cell and join them to a tab. The tab then exits the cell casing, which allows the cell’s energy to be transferred to an external source.

There are two foil-to-tab welds in each li-ion cell, and hundreds of cells in a standard lithium-ion battery pack.

 

Targray Battery Tabs Portfolio Summary

Our battery tab portfolio is built to meet the modern requirements for lithium-ion battery and energy storage manufacturing. It includes aluminum (Al) tabs for positive electrodes, and copper (Cu) tabs for negative electrodes. In addition, we can supply copper-plated Aluminum (Cu-Al), nickel (Ni), and aluminum-clad copper tabs. Our tabs are available with or without polypropolene film, and black or yellow DNP.

 

  • Material and cladding options: Many varieties of nickel, copper, aluminum-based tabs
  • Thickness: 0,010 – 0,150 mm
  • Tolerance: +/- 10% on nominal thickness
  • Width: 1,0 – 10 mm
  • Packaging: Wound on spools or plastic core with side shields
  • Customization: Custom dimensions for thickness and width can be produced on request

 

Battery-grade Nickel Strips

 

  • Rolled Nickel foil, slit to narrow strips or wider sheets
  • Thickness options ranging from 0,010mm to 0,150mm
  • Exceptional corrosion-resistance
  • Suitable for standard tabs and connection plates (stacks)

 

 

Aluminum-clad Copper Strips (Al-Cu)

 

  • Excellent welding connection with anode (Cu) and cathode (Al) materials
  • Combines the corrosion resistance of aluminum with the high conductivity of copper
  • Suitable for high-conductive battery tab ribbons
  • Silver- or tin-clad strips for soldering connections also available

 

Battery-grade Copper Bus Bars

 

  • Built using special copper grade C103 for laminated bus bars
  • Outstanding durability and flexibility, confirmed by long-term cycle testings
  • Standard thickness of 35µm, with many more sizing options available on request
  • Ideally suited for battery electrification and automotive connectors (EV)

Working alongside organizations including Electrochemical Society and NAATBatt, we’re focused on helping battery manufacturers commercialize ambitious new energy storage technologies.

Related Battery Materials

Laminated Battery Tapes

Developed using acid-modified polypropylene and polyester materials, our laminated tape can help in production of more stable li-ion pouch cells.

Aluminum Laminate Film

Available in rolls or preformed pouches, our multi-layer Al laminate films can be custom-produced to meet the specific requirements of each commercial customer.

Battery Cases, Cans and Lids

Targray supplies seamless, deep-drawn, aluminum alloy prismatic battery cans, cases and lids for the Lithium-ion car battery market.

Cathode Materials

Cathode materials for li ion battery manufacturing. Products include binders, foils, and cathode active materials (NMC, NCA, LMO, LCO).

Electrolyte Solutions

High performance battery electrolyte solutions. Produced with LiPF6 salt and a high phosphorous content flame retardant, DMMP.

Copper Foil

An anode foil portfolio of copper current collectors including Electrodeposited (ED), rolled annealed (RA) and roll-clad Cu foils.

Graphite Anode Materials

Battery grade graphite powders for li ion cells manufacturers. Products include natural, artificial and composite graphite.

PVDF & SBR Binders

High viscosity binder solutions. Developed specifically for lithium ion battery R&D and manufacturing.