Vapor-phase processing of nickel for EV batteries and Metal Additive Manufacturing

The proposed research project aims at technology for environmentally benign recycling of nickel. The
process entails conversion of nickel found in the “black mass” from recycled Ni-based batteries into
nickel carbonyl, Ni(CO)4, by reaction with CO at modest temperatures around 50-120°C (pressuredependent).
Only nickel carbonyl is volatile under these conditions and is easily separated from other
metals and residual materials found in the “black mass”. Downstream, the nickel tetracarbonyl vapors
are introduced into a high-temperature zone (ca. 200 to 500°C) where the carbonyl decomposes into
pure nickel metal film or powder and CO gas, which is then recycled back to the carbonylation reactor.
The project will focus on identification of optimal process conditions and equipment design for this new
source of “urban mining” materials and high-purity nickel products needed for the production of
advanced, high-capacity rechargeable batteries.

Faculty Supervisor:

Yimin Wu

Student:

Partner:

VPM Research Inc.

Discipline:

Engineering

Sector:

Manufacturing

University:

University of Waterloo

Program: