Production and use of composite graphene-copper powders

A system comprising:

• a chamber containing an inert environment and a mixing portion, the mixing portion being within the inert environment;
• a first nozzle and a second nozzle, wherein the first nozzle is configured to introduce a first mist into the mixing portion of the inert environment, the first mist being atomized copper, the first mist having a negative charge, and wherein the second nozzle configured to introduce a second mist into the mixing portion of the inert environment, the second mist including graphene flakes, the second mist having a positive charge;
• and
• an output configured to convey a graphene-copper composite powder from the inert environment, the graphene-copper composite powder being formed from mixing of the first mist of negatively charged atomized copper and the second mist of positively charged graphene flakes.

A graphene-copper composite powder formed by:

• providing an inert environment;
• introducing a first mist to the inert environment, the first mist being atomized copper with a negative charge;
• introducing a second mist to the inert environment, the second mist including graphene flakes with a positive charge;
• and
• mixing the first mist and the second mist within the inert environment to thereby produce a graphene-copper composite powder.