Stator coil with improved heat dissipation

1. A stator coil, comprising:

a plurality of copper strands;

at least one layer of high thermal conductivity polymer comprising a host polymer and high thermal conductivity fillers, wherein said high thermal conductivity polymer improves heat transfer; and

at least one cooling duct;

wherein said at least one layer of high thermal conductivity polymer comprises a layer of cooling duct insulation wrapped about and in direct contact with said cooling duct; and

wherein said at least one layer of high thermal conductivity polymer comprises a cooling duct separator disposed between said layer of cooling duct insulation and adjacent ones of said copper strands.

2. The stator coil of claim 1 , wherein said fillers comprise particles from about 1 nm to about 1000 nm in length and having an aspect ratio of between about 3 to about 300.

3. The stator coil of claim 1 , wherein said high thermal conductivity filers have a thermal conductivity within a range of about 10 W/mK to about 1,000 W/mK.

4. The stator coil of claim 1 , wherein said host polymer comprises one of a thermoplastic material and a thermoset material.

5. The stator coil of claim 1 wherein said at least one layer of high thermal conductivity polymer further comprises a structural reinforcement material.

6. The stator coil of claim 1 , wherein said fillers comprise filler particles having a high thermal conductivity coating.

7. The stator coil of claim 1 , wherein said host polymer comprises a resin having a thermal conductivity within a range of about 0.5 W/mK to about 5 W/mK.

8. The stator coil of claim 1 , wherein said host polymer comprises at least of a liquid crystal epoxy resin and a polybutadiene resin.