Neodymium
A rare earth element used to produce powerful neodymium-iron-boron (NdFeB) permanent magnets essential in EV traction motors and other automotive actuators.
Overview
Neodymium is a rare earth element (REE) of critical strategic importance to the automotive industry. It is the primary constituent of neodymium-iron-boron (NdFeB) permanent magnets — the strongest type of permanent magnets commercially available. These magnets are essential components in the traction motors of electric and hybrid vehicles, enabling high power density and efficiency in a compact form. A typical EV traction motor may contain 1–3 kg of NdFeB magnets. Beyond traction motors, neodymium magnets are used in power steering systems, loudspeakers, sensors, and various actuators throughout the vehicle. China dominates the global rare earth supply chain, controlling over 85% of neodymium production and a significant share of magnet manufacturing capacity. This concentration creates a critical supply chain vulnerability for automotive OEMs and drives significant geopolitical attention and investment in alternative sourcing and magnet recycling.
Automotive Applications
Similar Materials
Praseodymium
Rare Earth Element
A light rare-earth metal co-produced with neodymium and used primarily in NdPr (didymium) feedstock for NdFeB permanent magnets that power EV traction motors and automotive actuators.
Samarium
Rare Earth Element
A rare-earth metal used as feedstock for samarium–cobalt (SmCo) permanent magnets that retain performance at high temperature and in corrosive environments. Distinct from finished SmCo magnet products already catalogued separately.
Brass / Copper Alloys
Copper Alloy
Brass and copper-alloy strip and rod for busbars, terminals and connectors, distinct from pure copper.
Copper
Pure Copper
Highly conductive metal essential for electrical systems
Properties
Category
Type
Rare Earth Element
Available Colors
Available Forms
Key Properties
- Enables strongest permanent magnets (NdFeB)
- High coercivity and remanence
- Compact, lightweight motor design
- High power density
- Sensitive to corrosion (requires coating)
- Performance degrades at high temperatures without Dy addition
Technical Specifications
Density
7.01 g/cm³
Temperature Resistance
Up to 80°C uncoated; higher with dysprosium addition
Sustainability
Sustainability Rating
Rare earth mining generates significant radioactive waste (thorium and uranium by-products) and has caused severe environmental damage in major producing regions. End-of-life magnet recycling rates are very low globally, with most neodymium lost at vehicle end-of-life. The EU and US are investing heavily in rare earth recycling, urban mining, and alternative motor technologies to reduce dependency. Responsible sourcing certification schemes are still maturing.