一只手机需要多少稀土金属

本帖于 2025-10-18 02:04:51 时间, 由普通用户 胡雪盐8 编辑

Average Rare Earth Content in a Smartphone (e.g., iPhone, Samsung Galaxy)

Component Main Rare Earth Elements Typical Amount per Phone Function
Speakers & Vibrator (Magnets) Neodymium (Nd), Praseodymium (Pr), Dysprosium (Dy), Terbium (Tb) ~250–350 mg Strong NdFeB magnets for speakers, microphones, haptic motor
Screen (Display Glass & Phosphors) Yttrium (Y), Europium (Eu), Terbium (Tb) ~20–50 mg Red & green phosphors, color brightness
Camera Lenses Lanthanum (La) ~10–30 mg High-refractive index glass for clear lenses
Battery / Electronics Cerium (Ce), Lanthanum (La), Neodymium (Nd) ~5–10 mg Polishing powders, additives in battery electrodes
Other Sensors & Components Gadolinium (Gd), Erbium (Er), Ytterbium (Yb), Samarium (Sm) ~10–20 mg Optical amplifiers, stabilization, lasers (Face ID, LiDAR)

? Total per Smartphone

? ~0.5 – 1.0 grams of rare earth metals
? Equivalent to ~0.6 – 1.2 grams of rare earth oxides (REO)


Global Context

  • There are ~1.4 billion smartphones produced each year.

  • That equals roughly 1,000–1,500 metric tons of REO used annually in phones alone — small compared to EVs or wind turbines, but massive in aggregate.


Summary

Category Amount Key REEs
Per phone 0.5–1.0 g metals Nd, Pr, Dy, Tb, La, Ce, Y, Eu
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