Ferrari tried this years ago circa 2004 IIRC to send a strong electric current over the body of the car. It would probably make more sense to be using it nowadays considering the hybrid tech and the precautions that come along with it.
McLaren could very well be into something like this, but it won't be anything conected to Priestley, he's just a guy who used to work for McLaren.
Any team could be into this.
I'm wondering if it would be, or already has been banned/blocked because of the rules on using exotic materials.