Hybrid and electric vehicles are becoming an increasingly viable alternative for reducing polluting emissions on our roads. These vehicles, which combine electric and combustion engines, play a key role in the fight against climate change and reducing dependence on fossil fuels. In this context, Honda has taken a step forward in the development of hybrid engines that do not use heavy rare metals , which could revolutionize the automotive industry.
What are rare metals?
Rare metals are elements that are difficult to find in large quantities on Earth. These materials have physical and chemical properties that make them ideal for use in cutting-edge technology such as mobile phones, televisions, computers, and especially electric motors. Some of the most commonly used elements in the manufacture of electric and hybrid vehicles are neodymium, dysprosium, and terbium. However, China controls 95% of the world's production of these materials, which has led to geopolitical problems and soaring prices.
In 2010, China imposed a temporary ban on rare earth exports to Japan due to a territorial dispute. Since then, companies like Honda have been exploring alternatives to reduce their reliance on these resources.
Honda's breakthrough: hybrid engines without heavy rare earths
In collaboration with Daido Steel Co., Honda has developed a hybrid engine that does not require heavy rare earth metals such as dysprosium and terbium. This advancement represents a true innovation in the automotive industry, as these engines do not require the use of such materials to withstand the high temperatures they are subjected to.
The key component in this development is the hot-deformed neodymium magnets , which maintain excellent thermal resistance without the need for heavy rare metals. Furthermore, these new motors also have other significant advantages:
- Cost reduction: By not relying on expensive materials such as dysprosium and terbium, Honda has managed to reduce the manufacturing costs of these engines by up 10%.
- less weight: The new engines are also a 8% lighter, which contributes to improving the overall efficiency of the vehicle.
The first model to incorporate this technology will be the Honda Freed minivan , scheduled for launch in Japan and other Asian markets this fall. This hybrid vehicle will be able to deliver optimal performance without relying so heavily on materials controlled by China.
Geopolitical and environmental advantages
One of the main problems associated with rare earth metals is their monopolization by China, which has sometimes led to supply chain tensions and problems. Honda's development of these new hybrid engines not only allows the company to reduce its dependence on a virtually monopolistic supplier, but also has significant geopolitical implications.
Furthermore, rare earth metal extraction is a highly polluting process . Mining these materials requires very aggressive chemical procedures, which generate toxic waste that can persist in the environment for decades. By largely eliminating the need for these metals, Honda is also making a significant contribution to sustainable mobility and the global effort to reduce environmental impact.
Future perspectives
While Honda's hybrid engine still uses a rare, lightweight metal called neodymium , this element is more abundant and less dependent on China. It can be found in large quantities in North America and Australia, offering the industry greater security of supply. Nevertheless, Honda and other vehicle manufacturers continue to investigate ways to further reduce the use of these elements in engine manufacturing.
The company expects hybrids and other electric vehicles to continue growing in popularity in the coming years thanks to these technological advancements. With a focus on reducing reliance on unsustainable resources and improving efficiency, Honda continues to position itself as a leader in sustainable mobility.
Through innovations such as engines free of heavy rare metals, Honda is driving a new era in the automotive industry, helping both the environment and the global economy. Its commitment to developing more efficient and cleaner components proves that the future of automotive is sustainable.