Understanding Critical Minerals
What Are Critical Minerals?
Critical minerals are mineral commodities that are essential to economic and national security, have supply chains vulnerable to disruption, and serve an essential function in manufacturing products critical to the economy or national defense. The United States Geological Survey (USGS) and Department of Energy regularly assess and update the list of critical minerals based on these criteria.
According to the Energy Act of 2020, a critical mineral is defined as a non-fuel mineral or mineral material essential to the economic or national security of the United States, and which has a supply chain vulnerable to disruption. These minerals are crucial for various applications including energy storage, renewable energy technologies, defense systems, and consumer electronics.
US Critical Minerals List
The USGS maintains an official list of critical minerals, which currently includes 50 mineral commodities. Key critical minerals relevant to energy storage include:
Battery Materials
- Lithium - Essential for lithium-ion batteries used in EVs and energy storage
- Graphite - Primary anode material for lithium-ion batteries
- Cobalt - Used in lithium-ion battery cathodes
- Nickel - Critical component in NMC and NCA battery cathodes
- Manganese - Used in lithium manganese oxide and NMC batteries
Rare Earth Elements
- Neodymium - Permanent magnets for wind turbines and EVs
- Dysprosium - Enhances magnet performance at high temperatures
- Praseodymium - Used in high-performance magnets
Other Critical Minerals
- Vanadium - Used in vanadium redox flow batteries
- Aluminum - Battery casings and current collectors
- Copper - Electrical wiring and battery components
Applications in Energy Storage
Critical minerals play a fundamental role in modern energy storage systems:
Lithium-Ion Batteries
Lithium-ion batteries require multiple critical minerals including lithium, graphite, cobalt, nickel, and manganese. These batteries power electric vehicles, grid-scale energy storage, and portable electronics. The demand for these minerals is projected to increase significantly as the world transitions to clean energy.
Grid-Scale Energy Storage
Large-scale energy storage systems rely on critical minerals for battery technologies that help integrate renewable energy sources into the electrical grid. Vanadium redox flow batteries, for example, use vanadium as a key component for long-duration energy storage.
Renewable Energy Technologies
Wind turbines and solar panels depend on critical minerals. Rare earth elements like neodymium and dysprosium are essential for permanent magnets in wind turbine generators, while various critical minerals are used in solar panel manufacturing.
Supply Chain and Security
The United States currently imports many critical minerals, creating supply chain vulnerabilities. According to USGS data:
- The U.S. is 100% import-dependent for 12 critical minerals
- More than 50% of U.S. supply comes from imports for 31 critical minerals
- China is a major supplier for many critical minerals, creating geopolitical risks
To address these challenges, the U.S. government has implemented strategies including:
- Domestic mining and processing initiatives
- Strategic stockpiling programs
- International partnerships for diversified supply chains
- Research and development for alternative materials
- Recycling and recovery programs
Domestic Sourcing Strategies
Core Foundry is committed to sourcing critical minerals from domestic suppliers when possible. Our manufacturing facility in Kansas City, USA, supports the domestic supply chain for battery materials. Key strategies include:
- Partnerships with U.S. Miners - Working with domestic mining operations to secure supply
- Processing Facilities - Supporting domestic processing and refining capabilities
- Quality Standards - Ensuring materials meet strict quality requirements
- Sustainability - Promoting responsible mining and processing practices
Future Outlook
The demand for critical minerals is expected to grow significantly in the coming decades. The International Energy Agency (IEA) projects that demand for lithium could increase by 40 times by 2040, while demand for cobalt and nickel could increase by 20 times, driven primarily by the growth of electric vehicles and renewable energy storage.
This growth presents both challenges and opportunities. Investment in domestic mining, processing, and recycling infrastructure will be essential to ensure a secure and sustainable supply of critical minerals for the energy transition.
References and Further Reading
- U.S. Geological Survey - Critical Minerals List: USGS Critical Minerals
- Department of Energy - Critical Materials Strategy
- National Mining Association - Critical Minerals Information
- International Energy Agency - The Role of Critical Minerals in Clean Energy Transitions