Summary
Cobalt is a silvery-blue metal used as a stabilizing component in lithium-ion battery cathodes (NMC: nickel-manganese-cobalt; NCA: nickel-cobalt-aluminum). It is one of the most strategically problematic minerals in the battery supply chain, with approximately 75% of global production concentrated in the Democratic Republic of Congo (DRC) — a country with serious governance, conflict-mineral, and export-policy risks. China controls ~80% of cobalt refining. Most companies documented in the batteries knowledge base eliminate cobalt entirely through their choice of chemistry, which is a significant strategic advantage.
Key Facts
- Chemical formula: Co (atomic number 27)
- Primary battery uses: Cathode stabilizer in NMC (Li(Ni,Mn,Co)O₂) and NCA (LiNiCoAlO₂) chemistries; not used in LFP, Li-S, or most solid-state lithium metal designs
- Global production (2024): ~230,000 metric tons; DRC produced the majority (~75%)
- Top producing countries: DRC (~75%), Australia (~4%), Philippines (~3%), Russia (~3%)
- Top processing countries: China (~80% of global cobalt refining)
- Price trajectory: ~$10/lb (nine-year low, Feb 2024) → ~$24/lb ($52,900/ton, Dec 2025) — ~140% increase driven by DRC export quota announcement
- DRC export quota (2025): DRC introduced a quota system in 2025, allocating 18,125 MT for the rest of 2025 and 96,600 MT/year for 2026–2027 — well below 2024 output. This triggered significant price volatility and uncertainty for downstream users.
Major Producers
| Company | Country | DRC Quota Share | Notes |
|---|---|---|---|
| CMOC Group | China | ~36% of DRC quota (8,750 MT) | Largest cobalt miner globally (~31% market share in 2024); operates Kisanfu (KM) and Tenke Fungurume (TFM) mines in DRC |
| Glencore (LSE: GLEN) | Switzerland/UK | ~17% of DRC quota (3,925 MT) | Second-largest cobalt producer; operates Kamoto Copper Company (KCC) and Mutanda Mining (MUMI) in DRC |
| Umicore | Belgium | N/A (processor) | Major cobalt refiner and cathode precursor manufacturer; strategic partner to Idemitsu for solid-state battery materials |
Supply Chain Position
Cobalt sits at the Raw Materials → Precursor Chemicals layer of the battery supply chain, flowing into NMC/NCA cathode production. Because cobalt refining is China-dominated, even material mined in the DRC by non-Chinese companies passes largely through Chinese refineries before reaching Western battery factories.
Why elimination matters for documented companies:
- Lyten (Li-S chemistry): Uses sulfur cathode and lithium metal anode — no cobalt by definition. This is a structural competitive advantage given DRC concentration risk.
- Factorial Energy (FEST® semi-solid): Uses lithium metal anode; cathode can accommodate cobalt-free chemistries; POSCO Future M partnership explores Ultra Hi-Ni single-crystal cathodes that reduce (but may not eliminate) cobalt.
- QuantumScape, Solid Power, Adden Energy, ProLogium: All use lithium metal anodes with cathode chemistries that can be cobalt-free or very low cobalt (NMC811 and above are lower cobalt per unit energy than earlier NMC formulations).
- Idemitsu Kosan: Supplies electrolyte, not cathode; cobalt presence depends on Toyota’s cathode choice.
- Donut Lab: TiO₂ nanostructure design — no cobalt in the cathode.
Geopolitical Risk Assessment
Cobalt is the battery mineral with the most acute supply chain risk, compounded at three levels: (1) geographic concentration in a politically unstable country (DRC); (2) Chinese processing dominance (~80% refining); (3) the 2025 DRC export quota system, which introduced formal supply restrictions that drove a ~140% price increase from trough to December 2025.
The IEA and other analysts note that the shift toward LFP (cobalt-free, China-dominant chemistry), NMC811 (lower cobalt), and ultimately solid-state/Li-S chemistries (no cobalt) represents a structural industry response to cobalt’s vulnerability. For advanced battery companies, “cobalt-free” is increasingly a supply chain story, not just a chemistry story.