Supply chain challenges (lithium, cobalt) in EV Technology - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Why is lithium supply critical for electric vehicle batteries?

Lithium is a key material in electric vehicle batteries. What is the main reason its supply is considered critical?

A Lithium is abundant but difficult to extract economically.

B Lithium is rare and found only in a few countries worldwide.

C Lithium demand is rapidly increasing while production growth is limited.

D Lithium can be easily replaced by other metals in batteries.

💡 Hint

Think about how demand and production relate to supply challenges.

Lithium demand is growing fast due to electric vehicles, but mining and refining capacity cannot keep up quickly, making supply critical.

📋 Factual

intermediate

Which country is the largest producer of cobalt used in EV batteries?

Among the following countries, which produces the most cobalt used in electric vehicle batteries?

A Democratic Republic of Congo

B Canada

C Chile

D Australia

💡 Hint

Consider where most cobalt mining happens globally.

The Democratic Republic of Congo produces over 60% of the world's cobalt, making it the largest source for EV batteries.

🔍 Analysis

advanced

Impact of cobalt supply risks on EV manufacturers

How do supply risks related to cobalt affect electric vehicle manufacturers?

A They can easily switch to other metals without cost or delay.

B Supply risks cause price volatility and may delay battery production.

C Cobalt supply risks have no impact because cobalt is recycled fully.

D Manufacturers are unaffected because cobalt is only a minor battery component.

💡 Hint

Think about how supply uncertainty affects production planning and costs.

Cobalt supply risks lead to price swings and potential shortages, which can increase costs and slow down battery and vehicle production.

❓ Comparison

advanced

Comparing lithium and cobalt supply challenges

Which statement best compares the supply challenges of lithium and cobalt for EV batteries?

A Cobalt supply faces ethical concerns, lithium supply mainly faces production limits.

B Lithium supply is concentrated in one country, cobalt is widely distributed.

C Both lithium and cobalt have no significant supply chain issues currently.

D Lithium is more expensive than cobalt, so its supply is less critical.

💡 Hint

Consider ethical issues and production constraints separately.

Cobalt mining often involves ethical issues like child labor, while lithium supply challenges focus more on scaling production to meet demand.

❓ Reasoning

expert

Why diversifying supply sources is vital for lithium and cobalt

Why is it important for electric vehicle companies to diversify their lithium and cobalt supply sources?

A Because all sources have identical costs and qualities.

B Diversification is unnecessary as recycling fully meets demand.

C To increase the environmental impact by mining more locations.

D To reduce dependency on a few countries and avoid supply disruptions.

💡 Hint

Think about risks related to political, environmental, or logistical issues.

Diversifying supply reduces risks from political instability, trade restrictions, or natural disasters affecting a single source.