Besides high conductivity, these clad metals can be used for resistance welding and various other types of welding, and are useful for increasing the battery performance (higher volume and smaller size) and improving productivity as well.
[Internal lead for batteries]
Nickel Clad Copper and Copper Clad, Aluminum for batteries (Ni/Cu, Ni/Cu/Ni, Cu/Aℓ)
These materials have lower electrical resistance than pure nickel, coupled with excellent heat dispersion properties and processability. Due to these characteristics, the materials enable production of various types of larger output and higher capacity batteries.
[External terminal for batteries]
Aluminum clad nickel for batteries (Aℓ /Ni)
These materials have good conductivity and processability. They can be directly welded to lithium-ion battery aluminum casings and terminals.
Current-collecting clad foils for LIB negative electrodes (Cu/Ni alloy/Cu)
LIBs—next-generation high-capacity devices—use Si as an active material for their negative electrodes. High-strength, low-resistance current-collecting foils are required due to the high rates of expansion and contraction during electrical charging and discharging.
[Performance characteristics compared to presently used current-collecting foils]
Nickel-clad stainless steels for batteries (Ni/SUS304, etc.)
Having both low contact resistance and springiness, these materials are used for separators, current collectors, heat recovery, fuel processor system, etc.