interesting tech
- Thread starter jlustig83
- Start date
Dunno but why'd you want to use nimh anyways?
Spendy, heavy, very toxic, memory effect, etc :/
I'd like to see it applied to lifepo4. Then you can have your cake ( safety ) and eat it too ( ludicrous discharge/charge rates ).
Spendy, heavy, very toxic, memory effect, etc :/
I'd like to see it applied to lifepo4. Then you can have your cake ( safety ) and eat it too ( ludicrous discharge/charge rates ).
Its just unbelievable that one nimh battery with 3800 miliamp or 3.8 amp hour could discharge at 1000c. That would be 3,800 amps if im not mistaken 
And will that battery get warm or hot at 200c or 500c
There just way to many unanswered questions with there claims of such high c rates. I dont know what to think, lol.
And will that battery get warm or hot at 200c or 500c
There just way to many unanswered questions with there claims of such high c rates. I dont know what to think, lol.I have no solid answer on whether it would apply to nimh.. but..
I know that batteries create heat when they are being pushed. A constant 7C draw on my 20C lipos makes em warm. But 3C draw on those lipos resulted in no heat ( and lower voltage sag too ).
It would take a mega load on a 100C+ battery to get it warm!
That heat is a result of the battery basically acting like a resistor ( hence the term internal resistance ) and converting some energy into heat.
That C rating is derived from the internal resistance..
Pardon my non-scientific way of explaining this, but does it make sense?
I know that batteries create heat when they are being pushed. A constant 7C draw on my 20C lipos makes em warm. But 3C draw on those lipos resulted in no heat ( and lower voltage sag too ).
It would take a mega load on a 100C+ battery to get it warm!
That heat is a result of the battery basically acting like a resistor ( hence the term internal resistance ) and converting some energy into heat.
That C rating is derived from the internal resistance..
Pardon my non-scientific way of explaining this, but does it make sense?
Well, look at what the nanotech application has done for lithium polymer already.
HK states an 'up to 15C' charge rate which prolly means 10C
.. but that's still charging the entire battery to full in just a bit over 6 minutes at that rate. And discharge is at 45C-90C..
The tech is already available in the hobby world. I believe it will trickle down into electric cars.
HK states an 'up to 15C' charge rate which prolly means 10C
.. but that's still charging the entire battery to full in just a bit over 6 minutes at that rate. And discharge is at 45C-90C.. The tech is already available in the hobby world. I believe it will trickle down into electric cars.
Hillhater
100 TW
http://endless-sphere.com/forums/viewtopic.php?f=14&t=26168
Hillhater
100 TW
I dont think they have developed the power supply ( or cables) that could recharge a 50kWhr pack (Tesla) at 400C ..
.. that would need to be 53,000 Amps at 375 Volts ..
you would have to plug in direct at the power station !
.. that would need to be 53,000 Amps at 375 Volts ..
you would have to plug in direct at the power station !
Someone on ABG mentioned using a supercapacitor to buffer the load and regenerate a reserve, or a huuuge battery...
But yeah, if you had a quick charge EV charging station running all day, you would practically need to have it butted up against a power station.
Mini-nuke plants anyone?
But yeah, if you had a quick charge EV charging station running all day, you would practically need to have it butted up against a power station.
Mini-nuke plants anyone?
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