China's electric vehicle and climate ambitions jeopardized by surging critical material prices

Affordable electric vehicles are pivotal to sustainable transportation, yet surging prices and volatility of critical battery materials (lithium, cobalt, nickel, manganese) raise concerns about EV competitiveness and uptake. China, as the world’s largest EV market and a nation committed to carbon neutrality by 2060 with substantial transport decarbonization targets, is particularly exposed. The study asks how price surges of critical materials affect EV costs, market penetration, fleet electrification, and road-transport CO2 emissions in China, and what mitigation strategies (recycling, alternative chemistries, supply-chain measures) could counter these risks.

Prior long-term supply–demand analyses (e.g., IEA) project that mineral needs for EVs will far outstrip committed mine production, implying persistent shortages and constraints on EV deployment. Much of this literature uses a material-flow perspective and does not endogenize EV uptake via cost competition with alternatives. Projections commonly assume continued declines in low-carbon technology costs (e.g., LIBs to below $100/kWh by ~2030), but this is challenged by potential surges in critical material prices due to scarcity, declining ore grades, and supply–demand imbalances. Empirical observations (e.g., 2021 mineral price increases; early 2022 lithium +438%) and events like extreme nickel price volatility underscore market uncertainties. Neglecting material price dynamics may bias projections of China’s EV development and jeopardize carbon neutrality pathways.

The study extends GCAM v5.2, an integrated assessment model, to endogenize EV uptake through cost competition under critical material price surges. The model explicitly incorporates lithium, cobalt, nickel, and manganese price dynamics and links them to battery pack and EV costs. It evaluates multiple LIB chemistries: NCM (NCM111, NCM622, NCM811, NCM9.5.5), NCA, and cobalt-free LFP and LMO. Scenarios include Base-Line (BLS) with continued technological cost reductions and High/Medium/Low critical material price surge trajectories. The transport module covers China’s passenger and freight sectors, with LDV-4W (mini, subcompact, compact, large/SUV), bus (light, heavy), and truck (light, medium, heavy), and technology options ICEV, EV, FCEV, HEV (LDV), and NGV. Costs are translated into market shares via GCAM’s logit-choice formulation. Material flow analysis converts transport service demand to vehicle stocks. Recycling scenarios (RE) are combined with High/Medium/Low to represent delayed but increasing secondary supply that insulates part of demand from international price surges; recycling shares grow markedly post-2030 (up to ~70–86% by 2060 across subsectors). EV cost and penetration, ICEV dynamics, fuel use, and direct (tailpipe) CO2 emissions from road transport are tracked for 2020–2060.

• Critical material prices: Under the High scenario, by 2060 cobalt +467%, lithium +~380% by 2035 then stable, nickel +164% by 2060, manganese +313% by 2060. Medium and Low scenarios show smaller increases (e.g., by 2060: Medium—lithium +230%, cobalt +257%, nickel +142%, manganese +116%; Low—lithium +170%, cobalt +201%, nickel +83%, manganese +121%).
• EV costs: With NCM622 batteries, LDV-4W costs rise under High vs BLS by 2030: +7% (mini), +9% (subcompact), +10% (compact), +8% (large/SUV); by 2060: +15%, +19%, +21%, +18%. Bus EV costs in 2060: +11% (light bus) and +15% (heavy bus). Truck EV costs see ~+9% by 2060. Medium and Low result in smaller increases; cobalt-free LFP/LMO have much smaller cost upticks (~3–4% vs BLS by 2030–2060).
• ICEV costs remain relatively stable across scenarios (changes ~0.02–0.05% vs BLS due to fuel price responses), so relative competitiveness shifts toward ICEVs when EV costs rise.
• Stocks and penetration: Under BLS, EV stock with NCM622 reaches ~66 million by 2030 (25% of total) and ~550 million by 2060 (68%). Under High/Medium/Low, EV stocks by 2030 are ~37/43/65 million (44%/35%/1% below BLS); ICEV stocks in 2030 reach ~204/197/181 million. EV penetration with NCM622: 2030—35% (High), 41% (Medium), 43% (Low) vs higher in BLS; 2060—51% (High), 60% (Medium), 66% (Low), i.e., 24/11/1 percentage points below BLS. LDV-4W is most affected.
• Battery chemistry sensitivity: Reducing cobalt (moving from NCM111 to NCM622/811/9.5.5) improves EV penetration; under High, EV penetration gains by 5/12/13 percentage points by 2030 and 22/33/37 points by 2060 vs NCM111-High. Cobalt-free LFP/LMO limit ICEV penetration increases (+~5 pp in 2030; +~3 pp in 2060 vs BLS under High), mitigating cost surge impacts.
• Emissions: BLS yields road CO2 peaking ~0.63 Gt/yr in 2030 and declining to ~0.22 Gt/yr in 2060. Under High, peak is ~0.66–0.71 Gt/yr (~10% higher), and 2060 emissions are 0.27–0.54 Gt/yr (1.2–2.5× BLS) due to higher ICEV shares. Cumulative 2020–2060 CO2 with NCM622: 23 (High), 21 (Medium), 19 (Low) Gt—28%, 12%, 5% above BLS; cobalt-free batteries lower cumulative emissions to ~19 Gt (3–14% below NCM622).
• Recycling (RE) impacts: Recycling shares reach ~85–86% (LDV/bus) and ~70% (truck) by 2060. By 2060, EV costs in LDV-4W drop 11–15%/4–6%/4–5% in High-RE/Medium-RE/Low-RE vs their non-RE counterparts, approaching BLS costs even under High. EV penetration rises to 59%/66%/67% by 2060 in High-RE/Medium-RE/Low-RE (near BLS), reducing ICEV shares accordingly. 2060 CO2 falls to 0.27/0.24/0.23 Gt/yr in High-RE/Medium-RE/Low-RE, 36%/12%/10% below High/Medium/Low. Cumulative CO2 falls to 22/20/19 Gt (8%/2%/1% below High/Medium/Low).

Endogenizing EV uptake via cost competition shows that surging critical material prices erode EV affordability and market share, substantially slowing fleet electrification and elevating road-sector CO2 emissions, jeopardizing China’s transport decarbonization and carbon-neutrality goals. Impacts are most severe for cobalt-rich chemistries and in passenger LDV-4W. Recycling and chemistry shifts toward cobalt-free or lower-cobalt batteries materially restore EV competitiveness over time, narrowing cost and emission gaps relative to BLS by 2060. The findings emphasize the need to secure resilient critical material supply chains amid geopolitical concentration and volatility, to accelerate battery innovation (e.g., high-nickel NCM with caveats, LFP, emerging sodium-ion), and to deploy policy tools and investment that expand recycling and secondary supply. Shared mobility can reduce vehicle demand and thus material needs. International cooperation among major economies can help stabilize supply, promote recycling, and reduce systemic risks. Overall, the results directly address the research question by quantifying how material price surges alter EV penetration and emissions, and by identifying effective mitigation levers.

By extending GCAM to incorporate critical material price dynamics and battery chemistries, the study demonstrates that material price surges can significantly impede EV adoption in China, raising cumulative road CO2 emissions (e.g., +28% in 2020–2060 under a High NCM622 case) and threatening carbon neutrality objectives. Long-term countermeasures—material recycling at scale and battery innovation that reduces or eliminates scarce materials—are effective in restoring EV cost competitiveness and reducing emissions, bringing outcomes closer to baseline trajectories by 2060. Policy and industry actions should focus on diversifying and securing supply chains, scaling economically viable recycling (including open-loop sources), advancing alternative chemistries (e.g., LFP, sodium-ion), and encouraging shared mobility to curb material demand. Future research should refine material price and supply-risk modeling, evaluate broader technology portfolios (including next-generation batteries and their constraints), improve recycling process economics and quality of recovered materials for battery-grade use, and assess macro-fiscal and trade policy implications under different cooperation scenarios.

Results rely on scenario assumptions for critical material prices, technology cost trajectories, and adoption behavior within GCAM’s logit framework. Recycling effects are delayed and depend on future collection rates, process economics, and quality (e.g., nickel from stainless steel may not be battery-grade). Alternative chemistries face uncertainties in energy density, lifespan, safety, and manufacturability (e.g., sodium-ion anode limitations). The analysis focuses on China and direct (tailpipe) CO2; upstream emissions, other environmental and social impacts of mining/recycling, and broader market feedbacks are not fully resolved. Geopolitical and market volatilities may deviate from assumed trajectories.