The global race to electrify transportation is running headlong into a supply chain challenge: rare earth minerals. These elements, crucial for the powerful magnets found in most electric vehicle (EV) motors, are concentrated in a few countries, creating geopolitical vulnerabilities. Now, a growing number of automakers and technology companies are turning to India as a potential hub for developing and manufacturing motors that drastically reduce—or even eliminate—the need for these critical materials. This shift in focus towards rare-earth-free EV motors isn’t just about diversifying supply; it’s about building a more resilient and sustainable future for electric mobility.
The reliance on rare earths—neodymium, praseodymium, dysprosium, and terbium, among others—has long been a concern for the automotive industry. China currently dominates the processing of these minerals, controlling a significant portion of the global supply. This concentration creates risks related to price volatility, trade disputes, and potential disruptions. As demand for EVs surges, securing a stable and diversified supply chain becomes paramount. India, with its growing manufacturing capabilities and government support, is positioning itself to offer an alternative.
A Government Push for EV Exports
The Indian government has ambitious plans to transform the nation into a major EV manufacturing and export center. In August 2023, the Ministry of Heavy Industries announced a ₹3,500 crore (approximately $420 million USD) scheme to incentivize EV production, aiming to boost domestic manufacturing and attract foreign investment. This initiative aligns with a broader strategy to become an EV export hub by August 2025, according to government officials. The focus extends beyond just vehicle assembly; it includes the development of key components, like motors, batteries, and power electronics.
Trade-offs and Technical Hurdles in Rare-Earth-Free Motors
Despite the momentum, transitioning away from rare-earth magnets isn’t without its challenges. Currently, 70 to 80 percent of EV motors utilize these magnets, according to a recent report by JMK Research & Analytics. The automotive industry, known for its conservative approach to adopting novel technologies, is proceeding cautiously. Automakers will only embrace rare-earth-free motors “when the alternative is better on every other front,” including performance, size, cost, and reliability, says Rohan Somani, an industry analyst.
Existing rare-earth motors generally offer higher efficiency, converting 90 to 95 percent of electrical energy into motion under real-world driving conditions. Alternative designs currently achieve efficiencies ranging from 84 to 92 percent. This difference, although seemingly small, can impact vehicle range and overall energy consumption. Several types of rare-earth-free motors are being explored, each with its own set of trade-offs.
Switched reluctance motors (SRMs), for example, are known for their simplicity and robustness but often produce more vibration and noise. Synchronous reluctance motors (SynRMs) require more complex control systems to operate smoothly. Ferrite-based motors, while utilizing more abundant materials, have weaker magnetic fields, potentially limiting performance and increasing heat generation. Whereas, ferrite magnets demonstrate superior heat resistance compared to their rare-earth counterparts; rare-earth magnets are “prone to demagnetisation at higher temperatures,” explains Dorsa Talebi, a researcher at Texas A&M University developing a rare-earth-free motor.
Shifting Dependencies, Not Eliminating Them
Analysts caution that eliminating rare-earth magnets doesn’t necessarily eliminate material dependencies. “Eliminating rare-earth magnets reduces geopolitical supply risk from concentrated minerals but shifts material dependence toward widely available inputs like copper and electrical steel,” notes Abhik Mukherjee, a research analyst at Counterpoint Research. Increased demand for these alternative materials could, in turn, create new supply chain vulnerabilities. The transition requires a holistic view of material sourcing and processing.
The Role of Indian Manufacturers
Several Indian companies are at the forefront of developing and manufacturing rare-earth-free motors. Viridian Ingni Propulsion, for instance, is focused on axial flux motors that minimize the need for rare earths. Bullwork Mobility is likewise developing innovative motor designs. These companies are benefiting from the government’s push for localization and the growing demand for sustainable transportation solutions. Gopal, a representative from Viridian Ingni Propulsion, estimates that it “may take another 10 years for all companies to fully understand and start working on alternatives” at scale.
Raghuram, from Bullwork Mobility, emphasizes the importance of government support and real-world validation. “Once people see more adoption with more vehicles (with rare-earth-free motors) on the road, the confidence in the technology will change.” Government incentives, research funding, and supportive policies will be crucial to accelerating the adoption of these technologies across the Indian automotive industry.
Looking Ahead: A Long Road to Mass Adoption
The path to widespread adoption of rare-earth-free EV motors is likely to be gradual. Significant investment in research and development, coupled with advancements in materials science and motor design, will be necessary to overcome the existing performance and cost challenges. Collaboration between automakers, technology companies, and governments will be essential to building a robust and sustainable supply chain. The Indian government’s commitment to becoming an EV export hub provides a strong foundation for this transition, but sustained effort and innovation will be key to realizing its full potential. The next major checkpoint will be the implementation and evaluation of the government’s EV incentive scheme in late 2024 and early 2025.
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