Cross-Jurisdictional Trade-Offs and Grid Decarbonization Impacts
The life-cycle performance of secondary critical mineral recovery hinges upon regional electricity generation profiles and transport logistics within the Ontario–Québec industrial corridor. Refining spent cathode formulations and natural graphite materials in jurisdictions dominated by low-carbon hydroelectric power yields substantially lower greenhouse gas burdens than importing virgin materials refined under fossil-intensive thermal regimes [1], [2]. Secondary hydrometallurgical pathways avoid the destructive ecological burdens of primary extraction, thereby generating significant net environmental credits across key material streams including nickel, cobalt, manganese, and lithium carbonate [1]. Furthermore, establishing regional recycling capacity limits supply chain vulnerabilities across North American manufacturing clusters [6]. Nevertheless, interprovincial material transport between Ontario vehicle assembly centres and Québec processing facilities introduces logistical emissions that require careful structural alignment [1]. Direct emissions stemming from natural gas consumption during chemical purification and thermal processing stages also represent a vital optimization target for industrial operators [2]. Mitigating these auxiliary inputs through electrification will be critical to maximizing the ecological return on end-of-life battery management. Ultimately, integrating cross-provincial circular loops provides a viable blueprint for industrial decarbonization while securing critical precursor minerals [1], [6].