A former silver mining region in northern Ontario has been selected as the site for North America’s inaugural battery-grade cobalt refinery. The town adjacent to the refinery, Cobalt, seems to be aligning with its namesake. The upcoming facility will handle cobalt rock extraction, converting it into cobalt sulfate, a crucial component in lithium-ion batteries utilized in electric vehicles, smartphones, and aircraft.
Electra Battery Materials, the firm spearheading the venture, anticipates the refinery to be fully operational by the conclusion of 2027, capable of generating 6,500 tonnes of battery-grade cobalt annually, sufficient for around one million electric vehicle batteries each year. Trent Mell, the company’s founder and CEO, emphasized the growing necessity for these vital minerals in modern society’s batteries and high-tech applications, highlighting their significance for national security.
The refinement process at the facility involves meticulous adjustments by Graham Kinsman, Electra’s metallurgical lead, to eliminate impurities like iron and copper from the cobalt. The resultant pure cobalt form enhances battery stability, preventing overheating and extending charge retention duration.
Despite Cobalt’s name suggesting abundant cobalt reserves locally, the refinery will not be sourcing rock from the vicinity or even domestically. Cobalt was discovered in the region during the construction of the Temiskaming and Northern Ontario Railway in 1903, but the primary focus at the time was on silver, leading to a significant silver rush that peaked in the 1920s.
Mining companies have been exploring cobalt prospects in the former silver mines over the past decade, seeking the distinctive pink “cobalt bloom” indicative of cobalt exposure to oxygen. However, no viable vein sustaining a mine has yet been found. Mell’s previous company, First Cobalt Corp., engaged in prospecting efforts without success until rebranding as Electra in 2021 to repurpose a former metals refinery for the cobalt project.
The cobalt supply will originate from the Democratic Republic of Congo (DRC), where the majority of global cobalt is mined, and will be imported to Cobalt through a multi-stage transportation process. Concerns regarding mining practices in the DRC, including child labor and poor environmental practices, have prompted scrutiny. Electra is implementing measures to address these issues, including regular audits.
The dominance of China in the battery-grade cobalt supply chain poses challenges, particularly during trade disputes that could disrupt access to critical minerals. Electra aims to emulate China’s business model to secure a share of the market, striving to supply a significant portion of the global cobalt sulfate demand by next year. The project has garnered financial support from government grants and loans, indicating the strategic importance of securing the cobalt supply chain within North America.