What are the applications of rare earth in new energy vehicles?
1 Answers
Rare earth elements are used in new energy vehicles in various ways, including rare earth permanent magnet motors, rare earth power batteries, catalysts in three-way catalytic converters, and ceramic materials in oxygen sensors. Below are the specific details: 1. Rare Earth Permanent Magnet Motors: Rare earth permanent magnet motors have significant advantages such as simple structure, reliable operation, compact size, light weight, low loss, and high efficiency. Additionally, the shape and size of these motors can be flexibly designed, making them highly valued in the field of new energy vehicles. 2. Rare Earth Power Batteries: Rare earth elements not only participate in the preparation of mainstream lithium battery electrode materials but also serve as excellent raw materials for the positive electrodes of lead-acid batteries or nickel-metal hydride batteries. 3. Catalysts in Three-Way Catalytic Converters: The main components of three-way catalytic converters are rare earth elements, which play a key role as storage materials, partial replacements for main catalysts, and catalytic promoters. The rare earths used in exhaust gas purification catalysts are mainly mixtures of cerium oxide, praseodymium oxide, and lanthanum oxide. 4. Ceramic Materials in Oxygen Sensors: Due to their unique electronic structure, rare earth elements possess distinctive oxygen storage capabilities and are often used in the preparation of ceramic materials for oxygen sensors in electronic fuel injection systems, enhancing their catalytic performance.
