A dynamoelectric, rotating electric machine includes a stator assembly
that includes stacked stator coil windings. The machine is preferably a
polyphase, axial airgap device. Improved slot filling results from the
stacked stator coil configuration. Device performance capability is
thereby increased. The stator assembly of the electric device has a
magnetic core made from low loss, high frequency material. A high pole
count permits the electrical device to operate at high commutating
frequencies, with high efficiency, high power density and improved
performance characteristics. Low-loss materials incorporated by the
device include amorphous metals, nanocrystalline metals, optimized Si--Fe
alloys, grain-oriented Fe-based materials or non-grain-oriented Fe-based
materials.