Uses & Applications

Applications and End-Uses for Cobalt

Cobalt (Co) is a high-criticality battery metal with annual global production of approximately 230,000 tonnes. Cobalt is a critical battery metal essential for lithium-ion cathode chemistries used in electric vehicles and portable electronics. The Democratic Republic of Congo supplies the majority of the world's mined cobalt, creating significant supply chain and ethical sourcing concerns. Cobalt's role in superalloys also makes it vital for aerospace and defense applications.

Key Applications

The primary end-uses of Cobalt span multiple sectors. The following applications represent the most significant sources of global demand:

• Lithium-ion battery cathodes - Cobalt is valued in lithium-ion battery cathodes for its unique physical and chemical properties that are difficult to replicate with alternative materials.
• Superalloys for jet engines - Key alternatives include No practical substitute. Cobalt is essential for high-temperature creep resistance in jet engine superalloys; no alternative provides equivalent performance above 1000C
• Cemented carbide cutting tools - Key alternatives include Nickel binder, iron binder. Nickel-bonded carbides exist but cobalt provides superior toughness and sintering properties for cutting tools
• Catalysts for chemical processes - Cobalt is valued in catalysts for chemical processes for its unique physical and chemical properties that are difficult to replicate with alternative materials.
• Permanent magnets - Key alternatives include NdFeB magnets. SmCo magnets are preferred for extreme temperatures; NdFeB is stronger but cannot operate above 200C without heavy rare earth additions

Product Forms and Specifications

Cobalt is commercially available in 5 primary product forms, each serving different industrial requirements:

Demand Outlook

Cobalt appears on both the USGS Critical Minerals List and the EU Critical Raw Materials List, underscoring its strategic importance across Western economies. Growing demand from electrification, digitalization, and defense modernization is expected to place additional pressure on the Cobalt supply chain through the end of this decade.