Can hydrogen fuel cells replace EV batteries?

11 June 2022
Why are most of the electric cars powered by a battery? Is there a viable alternative?

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  • CyberDude

BURNING hydrogen in a combustion engine similarly to gasoline is the cheapest way to manufacture carbondioxide-free vehicles.

  • dexterlemmer

h2, 06 Jan 2023Batteries are very expensive to produce. and lithium reserves are not many. With the advan... more> Batteries are very expensive to produce. and lithium reserves are not many. With the advancement of technology it would be more feasible to obtain hydrogen. produce and store in our homes :)
1. Electrolyzers are even more expensive than batteries. And the inefficiency (which cannot be improved much with better tech as far as we know) means you'll need far more electricity to produce it. Li is quite abundant, just like oil, demand will increase supply. Furthermore, Na is now coming to market as well. 2. H2 cannot be used with equipment meant for NG, thus everything in house will need to be replaced. (Also pipes to house will need to be replaced.) 3. We **need** H2 for industrial uses like green steel, green fertelizer, etc and possibly for efuels for ships/aircraft. We definitely shouldn't waste H2 on what batteries do better, i.e. home and road transport.

  • h2

Batteries are very expensive to produce.
and lithium reserves are not many.

With the advancement of technology it would be more feasible to obtain hydrogen.
produce and store in our homes :)

kek, 13 Jun 2022I feel we should be better off improving the current fossil fuel process in order to reduce CO... moreEverything is good about your ideas, but sadly, emissions control and fuel mileage are inversely related to each other. The improvements through implementation of electronic Fuel injection, cat cons, etc have been realised and there's nothing more to do.
Now, we're making the world cleaner by making exhausts heavier and reducing fuel mileage.
Plus, even gasoline fire is dangerous, its fire goes upto 2100* C, its so hot that water evaporates before touching its fire base. People have died this way.

EV's, granted are bad too, they'll most likely explode on a big impact.

Hydrogen even if flammable spreads so well in environment, so its safer.
This way hydrogen makes a lot more sense, but all this tech stuff does make it expensive, but what other big demerit is there?

" A tailpipe you can drink from! "
But don't you think it will be terribly tasteless due to lack of minerals and can make you sick?

Anyhow, on this topic, let me just say that the first thing to be encouraged in electric vehicles is 80% charging rule. Unless you want to ride long distance, you must always charge 80% only.

This will ensure almost 3 times more battery lifespan, and less loss of charge holding over time.
Multiple research papers have been presented on this.

  • AML

Replacing one expensive fuel for another even more expensive fuel you have to pay for is madness.

All that electricity being wasted to produce hydrogen can go straight into a BEV. Best of all, we can charge BEVs at home with solar panels, making that power, effectively free.

Thats my current situation. Why would I give that up?

  • Anonymous

How is that posbul

  • Lsi

Yes some companies are producing( or starting to) cars or truck for hydrogen but thats because they think we will stick to li-ion chemistry for longer time and that just isnt true. Its just too late and too little effort by them as they (hey ,toyota) didnt bet high enough on hydrogen.

  • Lsi

My point was Hydrogen has no place in this segment!
Hydrogen technology and chraging infrastructure is just not developed enough at this time. Yes if we started developing charging station and cars trucks 5 10 years ago now we could say hydrogen could be a viable solution for transition to EVs but its just not here and it makes litteraly no sense to even look into it if you already have SS batteries knocking on your front door.

  • Lsi

This is Dawn of Solid state batteries ....The story is similar to one from 1900s when ICE and electric cars(yes at that time) were trying to get their way to mass market.

At least one big battery company is already mass producing these batteries or is starting in 2023.
There is just too much Research and development involved thus money invested in solid state technology that its just matter of time when it will be available to us.

These batteries are extremely safe, they dont explode when punctured , and even if you cut it or damage it the battery will still continue to provide its electricy like nothing happened. Also they are smaller in volume when compared to same capacity of lithium ion and they can be molded or bended . Soon(2-3years) we will see them everywhere not just in cars.

  • Anonymous

Anonymous, 22 Aug 2022This article is so misleading. And what is the validation of the data? Ltt explained rightfull... moreimagine using Linus Tech Tips as your primary source of information LMAO

  • Anonymous

Te 3 tre 5

  • Anonymous

the table mentioned in this article is the most misleading i have ever seen. it only shows the losses of H2 production. what about the production of batteries? ArenaEV is getting oblivious here. how much energy does it take to mine raw materials like lithium for batteries? how much energy does it take to manufacture a battery? with H2 fuel cells you only need to make the chemical reaction for H2 and to compress it. for batteries you need to destroy the environment to get the materials through mining, the disposal of batteries is bad for the environment either.

  • Anonymous

This article is so misleading. And what is the validation of the data? Ltt explained rightfully how fuel cell works

A patent on a working method would be worth so much to existing energy companies. I remember those claims. There was a TV show about it in the UK. I did a little looking into it over the years because I was interested and nearly falling into that conspiracy mode. But look, if you find some way of extracting H2 from water that goes against established basic chemistry then you need extraordinary proof. There's no known way these processes work. The inventors hide away behind "someone will steal my idea" because they want to cash out somehow with people who don't know it's bunk.

  • Anonymous

one question, in that above diagram of fuel cell, can the generated H2O be feed back to cathode side to do electrolysis with incoming electrons(and with help of additional rechargeable batteries that are chargeable at home) and then re-produce H2 and O to be reused there itself to produce a circular eco-in-system.

  • Anonymous

The losses for the production of electricity used in EV are nowhere mentioned... Once those are taken into account the overall efficiency of both processes mentioned in the article drops significantly further.

  • Healthy Alternative

It would be nice the mentioning of at least on of the many supressed inventors that managed to produce H2 on demand under the hood of the car. Or the possibility to obtain pure H2 through frequencies and acoustics..
However such tech did not fit the oil agenda neither will fit the "sustainable" energy agenda..
Thanks for the article

  • Anonymous

there's a reason they haven't mentioned the adsorption method: it's pretty much purely theoretical right now. There hasn't been anything that's left the materials testing lab. No real products (not even a prototype).

We can talk about it when a real-life example exists, not just "theory". Because if you're going to talk about theoreticals, we can compare that to solid-state lithium air batteries or something equally theoretical.

  • Zeke

This article mentions only two methods of storing hydrogen in fuel cells, with both of them having serious deficiencies in the form of extreme requirements, such as cryocooling (which requires a complex system), or keeping H2 molecules sealed within a container at several hundred atmospheres of pressure (being the smallest element, Hydrogen is notoriously very difficult to prevent from leaking).

There is however another alternative: solid state storage of hydrogen atoms via substrate adsorption. In short, rather than trying to capture and keep H2 molecules in gas (high pressure) or (cryocooled) liquid form, you have individual Hydrogen atoms that bind with solid materials inside a replaceable/reusable fuel cartridge, and can be released for electricity production through various mechanisms.

This third technology is the one receiving perhaps the most significant amount of attention right now, because the other two have serious deficiencies that are hard to solve cheaply, even after price reductions due to economies of scale, and because this third alternative is one that isn't yet fully developed (i.e. the best method has yet to be established), while showing a great deal of promise after the details have been worked out.

The following YouTube video does an IMO great job of explaining one example of this third alternative in layman's terms (there are various other routes involving other methods of capture and release that are currently being researched):