BYD

Last updated February 1, 2026

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Rare earth microstructure grain boundary: BYDRecent Research Landscape

Magnetic flux loss and thermal instability in motors drive high replacement costs, which are mitigated by engineering the grain boundary phase of rare earth magnets. Precise control over the elemental distribution within the permanent magnet lattice ensures high coercivity and operational reliability.

What technical problems is BYD addressing in Rare earth microstructure grain boundary?

Rotor heat accumulation

(95)evidences

Excessive heat accumulation in excitation units causes insulation failure and efficiency loss. Mitigating thermal stress prevents component burnout and extends motor operational life.

Inefficient propulsion energy management

(15)evidences

Insufficient power output relative to the physical size of the electric drive system. Overcoming this limitation allows for more compact and efficient vehicle powertrains.

Axial magnetic flux leakage

(12)evidences

Limited spatial efficiency in conventional motor topologies restricts torque output within compact vehicle and compressor housings. Maximizing axial flux performance overcomes physical footprint constraints in high-demand thermal and propulsion systems.