Recycling and reusing rare earth magnets
Rare earth permanent magnets, mostly neodymium-iron-boron (NdFeB), provide the high power density of most EV traction motors. Less than 1% of rare earths are currently recycled in Europe, largely because motors are not designed for magnet removal; design-for-disassembly and direct magnet reuse are the main routes to change that.
Less than 1% of rare earth elements are currently recycled in Europe.
Why rare earth magnets matter for EVs
NdFeB magnets contain neodymium and often dysprosium, both on the EU critical raw materials list, with supply heavily concentrated outside Europe. A typical EV motor contains 1 to 2 kg of magnet material.
How magnets can be recovered
Three routes exist: direct reuse of intact magnets in a new motor, magnet-to-magnet recycling (reprocessing the alloy into new magnets), and chemical recovery of the rare earth elements. Direct reuse keeps the most value but requires motors designed for it.
Designing motors for magnet recovery
Adhesives, encapsulation and rotor architectures usually make magnet extraction destructive. Designing rotors for non-destructive magnet removal from the start turns the motor into a source of certified reusable magnets.
Frequently asked questions
- Can rare earth magnets be recycled?
- Yes: by direct reuse, magnet-to-magnet recycling or chemical recovery of the rare earths, but current recycling rates in Europe are below 1%.
- Why are rare earth magnets hard to recycle?
- Motors are rarely designed for disassembly: magnets are glued or embedded, so extraction is destructive and uneconomic.
- Which rare earths are in an EV motor?
- Mainly neodymium, with dysprosium or terbium added for heat resistance, in NdFeB permanent magnets.
- What is magnet-to-magnet recycling?
- Reprocessing end-of-life magnet alloy directly into new magnets, avoiding full chemical separation of the rare earth elements.