Ni foam is a kind of metal foam. metal foam also has lead metal foam , Cu metal foam, Ti metal foam, etc. metal foam is also called sponge metal. It has high porosity, large specific surface area and unique three-dimensional network structure. Metal. Metal foam plays an important role in the fields of absorbing, filtering, catalyzing, and energy storage. One of the main varieties of metal foam is Ni metal foam.

Before the sponge substrate is plated with metallic Ni, the sponge is subjected to a conductive treatment. One of the processes of the treatment is that the sponge infiltrates the conductive adhesive to make the sponge conductive, and then the Ni ions are electroplated onto the sponge substrate, and the Ni metal foam is formed by a process such as baking, reduction, and the like. One type of conductive adhesive used in the above process is an aqueous graphite emulsion which meets the requirements of Ni metal foam production, and the use of water-based graphite emulsion as a conductive adhesive reduces the environmental pollution caused by the production of Ni metal foam. The high-performance Ni metal foam produced by the sub-micron graphite milk with specific properties has the characteristics of high porosity, low electrical resistance, good folding resistance and large specific surface area.