What kind of rare earths do new energy vehicles need?

New energy vehicles use light rare earth and heavy rare earth. Rare earth is not soil, but a rare metal. It is two elements closely related to lanthanide and lanthanide 15 in the periodic table of chemical elements-scandium (Sc) and yttrium (Y)*** 17, which are divided into light rare earth and heavy rare earth. Application of rare earth: 1. Rare earth permanent magnet motor: Rare earth permanent magnet motor is a new type of permanent magnet motor that appeared in the early 1970s. Its working principle is the same as that of electrically excited synchronous motor, but the former is excited by permanent magnet instead of exciting winding. Compared with the traditional electric excitation motor, the rare earth permanent magnet motor has obvious advantages such as simple structure, reliable operation, small volume, light weight, low loss and high efficiency, and the shape and size of the motor can be flexibly designed, which makes it highly valued in the field of new energy vehicles. 2. Rare earth power battery: Rare earth elements can not only participate in the preparation of current mainstream electrode materials for lithium batteries, but also be used as raw materials for the preparation of lead-acid batteries or nickel-hydrogen batteries. Patent JP2004 127549 introduces that the cathode of battery can be composed of rare earth-magnesium-nickel-based hydrogen storage alloy.