I don't see a NEED to combat CO2 emissions. CO2 is the breath of life, without it, Earth turns into the Moon...;

AC is right. You have no more idea than Trump who said, during the winter, that it was cold and some global warming might not come amiss.

Those solid state batteries have been hyped for about a decade now. What can I purchase, right now?
The most powerful EV companies have been investing in solid state for years. NIO have been promising a 150 kWh ET7 sedan for years as well. Somehow, it's not here. You can only order the 75 and 100 kWh versions, still.

Even at the 360 Wh/kg or so promised by NIO (automotive wet cells sit at 270-280 Wh/kg maximum), assuming the cells won't exothermically combust in any way and are greener and sweeter than angel's farts...still are utterly rubbish for crucial use cases such as ships and planes. Small crafts that don't need to go far and only slowly, sure that will work, but those kind of with on wet Li-Ion as well. Just spend a godawful amount on a small boat or little plane and it WILL go slowly for a short voyage and make you look like a green virtue signaling rich #$^@ traveling in it or having the butler fetch you some burgers in it.

An actual century ago, EVs were actually the top of the crop. There were city bus services, luxury cars were battery powered and nicer to operate, and for speed records you just needed an electric one. The reasons why EVs didn't lead this automotive centure...are still valid today. And worse than a century ago, EVs are actually a good bit more expensive than equivalent ICE vehicles, despite the huge scale of battery and e-motor production nowadays. Why? We started expecting motorway speeds from cars, ocean crossings from ships, and near-mach transoceanic from planes. Even if battery energy density would work for planes today (it's off by about 10-20 fold I would say), the planes would add several hours to an ocean crossing flight of say 10 hours.

If we can get low cost water splitting, steam cars and planes would become pretty attractive. Hydrogen on demand...rocket engines. And for cars a silent but wasteful fuel cell to electric conversion.

Wondering if these "Boost Converters" have any "Gain"

I'm afraid to assume that this is one of Dr. Holcomb's devices "Boost Converters" ?

SL

So, I'll assume none of you guys know (or can figure out) whether these Boost Converters
have any "Gain" associated with the designs.

As shown yes there is a gain in efficiency.

Coincidentally, I don't have a bench power supply and build my own buck/boost/cuk DC/DC converters as needed. There really simple and I have probably build hundreds. I prefer using a micro-computer with PWM, low resistance mosfets and fast switching diodes. I have also used synchronous rectification before but it's seldom necessary. I often test HV circuits above 30kV+ which could feedback through a ground connection so a cheap purpose built converter is a must.

On your post, the gain is obvious and the higher the voltage in the working circuit ie. motor the lower the heat/resistance losses. Simply put doubling the voltage cuts the current by half at any given power level. The current flow produces the heat/resistance/copper losses not the voltage. So it pays to use a converter to run a HV motor well above the battery pack voltage in EV's.

Most people don't get this because they don't understand the concept of energy.

Power is Volts x Amps, so 10,000V x 1A= 10,000 watts and 1V x 10,000A also equals 10,000 watts. However the low voltage/high current power would have magnitudes higher losses than the high voltage. In effect, anyone running a motor or any electrical system at low voltage/high current doesn't understand energy or efficiency.

For example, an incandescent light heats the filament to incandescence to produce light. It generates 80% heat and 20% light which is absurd. Where an LED excites the material causing oscillations which emit a given wavelength of light and minimal heating. Ergo, large heat losses in conductors or circuits is generally a sign of incompetence.

The Tesla hair pin circuit is a good example of what's possible. There were people lighting a 100w bulb underwater with tiny 30 gauge conductors. The trick was the blocking capacitors on both circuit legs which limited the current flow. The energy flow is high but the current flow is very low which many people have trouble wrapping there mind around.

AC

HINT:

As you study the various "Convertor - Invertor" topologies found in the papers, keep in mind
they generally involve a single inductor with  a single winding. Although some authors do mention
the B-H Curve, they are usually concerned with only the inductance and not magnetic gain aspect.

Recall - a small "H" can induce a large "B" in a "soft magnetic material." This is where some
significant "magnetic gain" can be achieved. Combining this "knowledge" with a Boost Convertor
might have some significant effects!  This has been proven in the Holcomb devices.

Further, combine a B-H Curve related Boost Convertor with an Inverter topology... (as found in
modern high RPM [many pole] ICE generators that employ an inverter [keep the inverter input
capacitor charged - KHz]

Just a little "food for thought!" This is where a good CAE Analysis platform is handy... a quick try
it out before spending money on a brass-board prototype.

Good luck and happy designing!     Anyway, enough of this chatter....

And what method is used to obtain ammonia as alternative to hydrogen ?

Ammonia is nitrogen and hydrogen mixed  !
https://www.autocar.co.uk/car-news/new-cars/gac-and-toyota-develop-ammonia-engine-90-co2-reduction
https://m.youtube.com/watch?v=Pcm4fCDQ4dY&pp=ygUJI2VuZ2luZXdzMazda also in ammonia engine car R&D ,Ford did have participation in the Mazda company .



100 US$/KW the aquariusengine !
Remembers the 'Stelzer Motor ' !
https://en.m.wikipedia.org/wiki/Stelzer_engine

As really cheap range extender : the Reinhardt engine-genset

https://dreamer3000.wordpress.com/the-reinhardt-turbine/

10 US$/KW the 2008 engine costs estimation !
https://www.greencarcongress.com/2009/04/concept-compact-twocycle-cogenerating-pistondriven-turbine-to-deliver-60-efficiency.html
Comparison Reinhardt/INN  :

https://m.youtube.com/watch?v=HcC8mPoYe8g

Toyotas ic engine mass production costs are near 10 US$/KW !



We shall not forget ic engine fuel kind conversion R&D :

6 lt/100 Km water hydrolysis ic engine :    https://m.youtube.com/watch?v=Hi4EZikqXJE

wmbr
OCWL

Ammonia is nitrogen and hydrogen mixed  !
https://www.autocar.co.uk/car-news/new-cars/gac-and-toyota-develop-ammonia-engine-90-co2-reduction

Found: "the exhaust gas from the actual ammonia-fueled engines contains unburned ammonia, nitrogen oxides (NOx), and nitrous oxide (N2O), and there is a need to develop technologies to remove these harmful substances."

NOx is what is crippling the farming and construction sectors, depending on local brand of politics.[/size]