Cobalt

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Critical raw materials

Materials that an economy depends on and whose supply is concentrated or at risk: for batteries, lithium, cobalt, nickel, natural graphite and manganese. The EU and US both list them and attach sourcing and recycling targets.

Supply-chain due diligence

The obligation on battery makers to identify and address human-rights and environmental risks in their raw-material supply chains, following OECD guidance, and now a legal requirement in the EU for cobalt, lithium, nickel and graphite.

High-nickel cathode

A layered oxide with 80 % or more nickel, such as NMC811 or NCA. Nickel raises capacity and lowers cobalt content, but the material is less thermally stable, more sensitive to moisture and ages faster at high voltage.

LCO

The original lithium-ion positive material, LiCoO₂, still used in phones and laptops for its high volumetric energy density. Cobalt cost and limited thermal stability keep it out of vehicles.

NMC

A family of layered-oxide positive electrode materials, LiNiₓMnᵧCo₁₋ₓ₋ᵧO₂, used in many electric-vehicle cells. Variants are named by their metal ratio: NMC811 has eight parts nickel to one each of manganese and cobalt.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

1. Regulation (EU) 2023/1542 concerning batteries and waste batteries

   European Union / EUR-Lex · 2023

   Topic background · Battery sustainability, information, waste management and battery passport provisions. Consult the current consolidated text and applicable implementing acts.