So you are a Army EV tank commander fighting in a foreign country, where do you get the electricity to charge the tank in the midst of a battle?

[Rigby5]

Again, your inability to stay on the topic renders your responses irrelevant.

How do we get fuel to the battlefield today?
There ya go.

The problem is that electricity is vastly less efficient, having to first generate electricity, store it in batteries, retrieve it later, and convert it back to kinetic energy.
Over half the energy is lost in all the layers, as well as the batteries adding a ton to a normal car, so about 30 tons to a tank.
That will make it so heavy that no bridges will hold it.
And it still will need recharging every 2 hours or so.

 

[Rigby5]

Solid state batteries aren’t limited to exotic minerals. The sodium battery is one alternative.

Why are you so upset with China ?
They are a manufacturing base only because of their cheap labor. It’s up to the United States to lead the way, not China.
More fear mongering.

Any battery that has to be charged and discharged is a terrible idea, and it will still add 30 tons or so, no matter it if is lithium, sodium, solid state, etc.
But hydrogen fuel cells do make sense.
However, if you are going to use hydrogen, it is still about twice as efficient to burn it.

 

[Rigby5]

Fuel cell electric cars have a range of plus 300 miles. So they are comparable to gas and diesel engines in that realm. So, how large is a fuel cell in a car ? About 18 lBS of hydrogen is needed to power a car 300 miles. That compares to favorably 140 lBS of gasoline. So it’s a fraction of the weight.

It seems reasonable that a fuel cell electric in a tank would have comparable range to its diesel equivalent. The weight savings would be huge as the weight savings in hydrogen and electric motors which are much smaller then their comparable diesel plus you eliminate the transmission. The fuel supply is inexhaustible and totally not dependent upon upon fossil fuel companies here or abroad.

Wrong.
Hydrogen needs to be highly pressurized, so needs a much heavier and clumsy pressure tank.
There also is no way 18 lbs of hydrogen will give you 300 mile range in an EV.
{...
You’ll pay £9.99 per kilo of hydrogen, so a 4.7kg fill costs around £47. That’s 5.74 miles per pound over 270 miles, or 17.4 pence per mile.
...}
That means a 30 gallon hydrogen tank only gets you 103.3 miles in a car, (18 lbs x 5.74 miles/lb)
And instead of a 1 ton car, we are talking about a 60 ton tank.
So you need 60 x 30 gallons, or 1800 gallons.
And while you will never run out of water, you will need a mobile fission reactor to power the hydrolysis conversion to hydrogen.

 

[AZrailwhale]

Do try to stay on topic.

Give current technologies, technological development trends and direction EV military equipment is entirely feasible if we choose to pursue it.

Sure tanks and armored personnel carriers that can travel five miles between recharges that take hours. Ships with sails, gliders for aircraft.

 

[AZrailwhale]

Your inability to see beyond the end of your nose limits your thought.
By your reasoning we'd all be using this
View attachment 781839
Rather than these
View attachment 781841

Technology evolves little one even if you do not.

It took over thirty years to make that progression.

 

[AZrailwhale]

Electric motors are powerful enough to push a locomotive..

Yep and the electricity to power those electric motors comes from diesel engines.

 

[AZrailwhale]

If you’re driving in a tank in a foreign country with no functional infrastructural, where do you get the gasoline to drive the tank?

It’s trucked in by trucks powered by diesel engines.

 

[AZrailwhale]

The first stage will be anyway the AbramsX, a new, 60-ton, AI-enabled, fuel efficient hybrid-electric main battle tank.
Then we will see to where this EV mania leads to.

https://warriormaven.com/land/-abramsx-ai-enabled-fuel-efficient-unmanned-turret-silent-attack

Nothing new. Ferdinand Porsche was designing hybrid diesel-electric tanks and assault guns back in WWII. The US took a stab at it as well, but it never workedvout.

 

[Kruska]

Nothing new. Ferdinand Porsche was designing hybrid diesel-electric tanks and assault guns back in WWII. The US took a stab at it as well, but it never workedvout.

Yes, but e.g. 1944 was nowhere near the technology of today. Hybrid makes sense in regards to tactical field advantages and one would be stupid IMO, not to make use of it. If those tactical field advantages are worth the $$ - I couldn't presently say.

 

[Dagosa]

Yep and the electricity to power those electric motors comes from diesel engines.

The same place you get electricity to start every tank, and manage every system in one now.and all the electronics in every weapons system. Wtf do you get off thinking nearly every system doesn’t already require fobs of electricity.

 

[Dagosa]

It’s trucked in by trucks powered by diesel engines.

And every truck requires electricity to run and mange every fossil fuel vehicle.

 

[Leviticus]

I would understand trying to get a hybrid tank, e v technology is not developed enough for full military use.

 

[Dagosa]

The problem is that electricity is vastly less efficient, having to first generate electricity, store it in batteries, retrieve it later, and convert it back to kinetic energy.
Over half the energy is lost in all the layers, as well as the batteries adding a ton to a normal car, so about 30 tons to a tank.
That will make it so heavy that no bridges will hold it.
And it still will need recharging every 2 hours or so.

The present Abrams tank already is due for a hybrid with a diesel multi fuel electric hybrid system. Hey, we’ve been slowly introducing elect drive power into military vehicles for for years. Hybrids are series hybrids which can be fueled buy a plethora of options and run in stealth mode for whiter operation. We’re going to electricity not only to make them more efficient, but better operationally.

 

[Dagosa]

I would understand trying to get a hybrid tank, e v technology is not developed enough for full military use.

It already is...we’ve been into dicing electricity gradually into all vehicles, military or not. Name one that is not dependent upon it. Hybrids with their own generation are the next step towards all electric.

We’ve been using hybrid electric propulsion for decades now while you were sleeping.

 

[Dagosa]

The problem is that electricity is vastly less efficient, having to first generate electricity, store it in batteries, retrieve it later, and convert it back to kinetic energy.
Over half the energy is lost in all the layers, as well as the batteries adding a ton to a normal car, so about 30 tons to a tank.
That will make it so heavy that no bridges will hold it.
And it still will need recharging every 2 hours or

Electricity is much more efficient. Not only that, but electric drive is fungible. You can produce electricity for drive motors in a plethora of different ways. That’s a huge advantage in foreign countries. We do it already....while you were sleeping. You think the military doesn’t care about efficiency ?

 

[JWBooth]

Granholm'​

Stupid is as stupid does

 

[Dagosa]

I would understand trying to get a hybrid tank, e v technology is not developed enough for full military use.

It is already....we use stealth vehicles, EV powered land and air drones for surveillance front line military use.

 

[Dagosa]

Nothing new. Ferdinand Porsche was designing hybrid diesel-electric tanks and assault guns back in WWII. The US took a stab at it as well, but it never workedvout.

Hybrids are used in many nuclear power “vehicle” for decades now. EV power is king and has been for a long time.

 

[Dagosa]

I would understand trying to get a hybrid tank, e v technology is not developed enough for full military use.

Hybrid IS EV technology. It just has on board charging. We have a plug in hybrid hybrid that will run all EV or gasoline assist for long range. The military does too. So you charge it at night or at a military base for 15 cents per kW hour...
Or fill the tank and go 600 miles using both.

 

[Dagosa]

Yep and the electricity to power those electric motors comes from diesel engines.

And your point is what ? EV propulsion does not make it more efficient ? Because it does. This is how we go to full EVs,, through hybrids. Eventually to batteries or other storage or electric gen sources will be ingrained in the structure of vehicles...or the fuel cells that use fossil free fuels will be developed. We already have a working models for electric assist jet air planes using free air propulsion.