Critical Raw Materials: What Cohort 10 Learned About Battery Supply Chains

The battery raw materials supply chain was the spine of our Cohort 10 battery course in April 2024. Nearly every other theme, from cell design to gigafactory ramp-up, eventually came back to a blunt question: where do the materials come from, who controls them, and what happens when demand outruns supply. The cohort treated raw materials as the industry's central constraint that spring, and spent its sessions mapping the sources, the policy and the geography that decide access.

Demand outrunning supply

A lecture on trends in battery raw material supply chains opened the theme, and the picture it painted was one of structural tension. Lithium, nickel, cobalt and graphite all face demand curves steeper than new supply can comfortably meet, and the lead times to open a mine or refinery are measured in years, not months. The cohort read this not as a temporary shortage but as a defining feature of the decade, one that shapes pricing, investment and strategy across the whole value chain.

An office hour on where battery metals come from mapped the sources concretely, tracing lithium and the other metals back to their origins. That grounding mattered, because it made clear how concentrated processing is, and how a supply chain can look diversified at the mine while remaining a bottleneck at the refinery. The cohort kept coming back to that distinction between extraction and processing, since owning the ore is not the same as controlling the material that goes into a cell.

Policy as a supply chain force

Regulation was inseparable from materials this cohort. A lecture on critical raw materials in the EU for EV batteries examined how Europe is trying to secure access through the Critical Raw Materials Act, setting targets for domestic extraction, processing and recycling. Battery policy and investment sessions connected these rules to the capital that follows them, since policy now steers where factories and refineries get built as much as market price does.

The EU Battery Passport gave this a practical edge. By requiring documented provenance and carbon footprint for batteries sold into the European market, the passport turns supply chain transparency from good practice into a legal requirement. The cohort saw traceability as the connective tissue between the materials theme and the circularity theme, since the same data that proves responsible sourcing also enables recycling and second-life decisions later.

Geography, sourcing and building capacity

Regional case work made the abstract concrete. An office hour on the African battery value chain, from cradle to cell, examined the continent's role as more than a source of raw ore, asking whether processing and cell-making could move closer to the resource. A case study on the challenges of lithium supply for the Indian market showed how a fast-growing demand centre without domestic reserves has to build its sourcing strategy from scratch. Together they showed how differently the supply question looks depending on where you stand.

Building capacity closed the loop back to materials. A case study on setting up a gigafactory in North America and an office hour on gigafactory ramp-up in Canada made clear that a factory is only as secure as the material feeding it, and that ramp-up depends on locked-in supply as much as on equipment and yield. The cohort's conclusion was that supply chain strategy is now inseparable from manufacturing strategy. You cannot plan a plant without planning its materials, and you cannot plan materials without reading the policy that governs them. That integrated view, materials, policy and geography together, was the cohort's clearest lesson.

Key Takeaways

• Cohort 10 treated the battery raw materials supply chain as the industry's central constraint, with demand for lithium, nickel, cobalt and graphite outrunning new supply.
• The group distinguished extraction from processing, noting that concentrated refining capacity is often the real bottleneck.
• EU critical raw materials rules and battery policy were examined as forces steering where factories and refineries get built.
• The EU Battery Passport turned supply chain traceability into a legal requirement and a bridge to circularity.
• Regional sessions on the African battery value chain and lithium supply for India showed how differently sourcing looks by geography.
• Gigafactory ramp-up in North America and Canada underlined that capacity is only as secure as the materials feeding it.
• The cohort's clearest lesson was that supply chain, policy and manufacturing strategy now have to be planned together.