Didn't know about this. Source?

thanks! added it to the post

Most of his talks he mentions this. He was doing a PHD to study ultra-capacitors, or at least, was accepted to UPENN with that intention. He left to start zip2. He has also mentioned that a part of the reason he didn't proceed was that his research was very theoretical and it would've been able to find (or disprove) of a method after years pf study. He mentions some of the other breakthroughs on iltra-capacitors having the efficiency of a lead battery, but, while extremely efficient, the prototype used an extremely rare material that only was mined in a few tonnes a year. Thus the solution could never scale.

Musk has been known to embellish his academic record, it was detailed during the court case against Tesla's original founder Martin Eberhard:

http://evworld.com/pdf/eberhardvmusk.pdf

According to court documents he has never had any association with Stanford university, and, contrary to public statements, among them SEC filings, has no degrees beyond a Bachelor of Science in Economics from PennU.

Do we know if we can trust Eberhard on this?