For those following my work, thank you and sorry for the long wait for an update! I am currently writing up my doctorate so as you can imagine I have been a social hermit recently!
Nevertheless, I have now had a journal paper published which may be of interest to those fellow electronics geeks out there and as a bonus it is open access so no charge to view it!
The paper focuses around balancing a hydrogen fuel cell with a battery with ideal diodes. These give a tremendous efficiency advantage over traditional diodes. The powertrain exploits the ability that a fuel cell has to operate at different voltages in order to create a potential long endurance system which still has all the power of a battery at an instant when needed.
Once again, thank you for your interest and I will do my best to answer any questions you have! The paper is a creative commons license so feel free to use it and build upon it, giving credit for the original work where due!