What are the uses of nickel foam?

Metal foam is a relatively new material used in lightweight construction. Due to its low density, inherent strength, and good electrical conductivity, nickel foam is well suited for a variety of applications, including:
Battery electrodes - Nickel foam is primarily used in nickel metal hydride (NiMH) batteries, a type of rechargeable battery used in laptop computers, cell phones and hybrid vehicles.
Catalyst material - open cell structure, strength and thermal shock resistance make nickel foam useful as a catalyst support for catalytic converters, combustion and filters.
Fuel cells - Nickel foam can be used as an electrocatalyst in molten carbonate fuel cells due to its heat resistance properties such as porous structure and thermal stability.
Filters - Nickel foam has a three-dimensional porous structure and is suitable as a filter material in applications such as hydrogen storage media and heat exchangers. In addition, the unique magnetic properties of nickel foam make it useful as a magnetic current conductor.