Established in the southern central Andes by 1800 BC, indigenous metalsmiths quickly mastered such sophisticated techniques as smelting, gilding,
electrochemical deposition, and the production of silver - copper alloys.
In it, they describe a process by which nanodiamonds — tiny diamond particles 10,000 times smaller than the diameter of a hair — curtail
the electrochemical deposition, called plating, that can lead to hazardous short - circuiting of lithium ion batteries.