电动车最关键的蓄电池是需要稀土的，所以当年英国承诺2030年将停止生产燃油车引起了轩然大波，因为英国没有稀土，成本不可控。
Rare earth metals are used in the magnets of electric vehicles (EVs), but not in lithium-ion batteries.
Explanation
-
Rare earth metals are used to make the permanent magnets in the motors of EVs. These magnets are the strongest available, and can produce magnetic fields of over 1.6 Teslas.
-
The rare earth metals used in magnets include neodymium, samarium, terbium, and dysprosium.
-
The most common rare earth magnets are neodymium-iron-boron (NdFeB) and samarium cobalt (SmCo).
-
The large-scale mining and use of rare earth metals has caused environmental pollution and health issues.
-
Some manufacturers are reducing the amount of rare earth metals used in their products. Alternative materials like ferrite-based magnets can be used to replace rare earth metals.
