China’s GAC has developed an electric-drive system with the Chinese Academy of Sciences that uses sheets of amorphous metal just 0.025 mm thick. The material’s non-crystalline atomic structure is intended to cut energy lost in the motor core as magnetic fields change, offering an alternative to increasing battery size to extend an EV’s range.

GAC says the motor-core losses fall by 50%, while the motor’s peak efficiency reaches 99.03%. The complete powertrain is rated at 94% efficiency under China’s CLTC homologation cycle. The company also estimates a 4% reduction in energy consumption, which it says can deliver an additional 30–50 km on the same battery. These figures refer to different parts of the system, rather than to vehicle efficiency alone.

The efficiency gain could instead allow automakers to retain the same range with a smaller battery. For an EV rated at 500 km, GAC calculates that nearly 8 kWh of capacity could be removed. The company says a 300-kW version of the system weighs 68 kg, compared with more than 80 kg for comparable units. GAC reports that the technology is already being incorporated into production vehicles from its HYPTEC, AION and AISTALAND brands.