Why powertrain circularity is the EV industry's next frontier
RELiVE Consortium
The circular economy conversation around electric vehicles usually starts and ends with battery recycling. Necessary, but not sufficient. An electric powertrain also contains an e-motor with rare earth magnets, power electronics and bearings, and most of these components outlive the battery's first life. Treating the powertrain as a system, not a collection of waste streams, is the next frontier.
The raw material pressure
Electric vehicles depend on critical raw materials (lithium, cobalt and graphite in batteries, neodymium and dysprosium in motor magnets) whose supply is concentrated outside Europe. The EU's Critical Raw Materials Act (2024) responds with 2030 targets for domestic extraction, processing and recycling; but the fastest way to reduce demand is not to mine differently, it is to need less. Every reused magnet or battery module is material that never has to be extracted, refined or imported. That is why RELiVE targets a 50% reduction in critical raw material consumption per kilometre.
Repairability changes the economics
A powertrain that can only be replaced as a whole makes repair an economic dead end. Modularity inverts that logic: when the battery is built from individually replaceable modules and degradation is caught early by health monitoring, a repair shrinks from a pack-sized expense to a module-sized one. Multiplied over a vehicle's life, this is how RELiVE aims to cut total cost of ownership by 27%: durability and affordability turn out to be the same design problem.
Traceability makes reuse trustworthy
Nobody builds a business on components with unknown histories. This is what the EU's Digital Product Passport framework changes: a structured record of a product's composition, history and condition, accessible across its lifecycle. The battery passport becomes mandatory for EV batteries placed on the EU market from February 2027, and RELiVE goes one step further by applying the passport logic to the entire powertrain, so that magnets, e-motors and power electronics can be requalified for a second life with verifiable data.
Reuse first, recycle last
Recycling recovers materials but destroys the value of manufacture. The circular hierarchy (reuse, then repurpose, then recycle) preserves that value as long as possible. RELiVE's SECONDLIFE concept puts the hierarchy into practice: healthy components from first-life powertrains are recovered, requalified and reassembled into reliable, low-cost powertrains. The loop is not a metaphor; it is an engineering programme running to 2030.