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Altair Nanotechnologies, Inc. Message Board

  • odialt odialt Jun 8, 2012 11:34 PM Flag

    Experimental study of an air-cooled thermal management system for high capacity LTO batteries

    http://www.sciencedirect.com/science/article/pii/S0378775312009433

    "Abstract

    Lithium-titanate batteries have become an attractive option for battery electric vehicles and hybrid electric vehicles. In order to maintain safe operating temperatures, these batteries must be actively cooled during operation. Liquid-cooled systems typically employed for this purpose are inefficient due to the parasitic power consumed by the on-board chiller unit and the coolant pump. A more efficient option would be to circulate ambient air through the battery bank and directly reject the heat to the ambient. We designed and fabricated such an air-cooled thermal management system employing metal-foam based heat exchanger plates for sufficient heat removal capacity. Experiments were conducted with Altairnano’s 50 Ah cells over a range of charge-discharge cycle currents at two air flow rates. It was found that an airflow of 1100 mls−1 per cell restricts the temperature rise of the coolant air to less than 10°C over ambient even for 200 A charge-discharge cycles. Furthermore, it was shown that the power required to drive the air through the heat exchanger was less than a conventional liquid-cooled thermal management system. The results indicate that air-cooled systems can be an effective and efficient method for the thermal management of automotive battery packs."

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    • I didn't pay much attention to their "new" invention. I think Altair can do all that already.
      Short-squeeze IMO. PPS will come down again.

      Well, Valence finally came down in recent weeks.
      Only took the market about 3 years to realize there's no value there ;-)

    • don't forget to show us how you recommended and invested in A123 which was up 50% today! (:-) (Even though it has a going concern notice!)
      tactless

    • You know, I don't care one iota whether you or anyone else on this board ridicules me for my stock picks. Because I know I will succeed in the end.

      But I think you need to be honest as well, about your position. And not tell lies all the time.

    • Dang, who could resist a pretty story like that. You the man Dutch! Here's hoping we clink two hineys next to a canal in a few years.

    • That could be pretty smart Usarman. Heck, Dutch has got to right about something sooner or later.

      Just don't go all out on it. Remember Dutch started out small, and then he lost 95% of that, so he can't have more than a few hundred Euros (Kronors?) invested. His keyboard/data entry job can't supplement that much. But Dutch spells out his reasons rather succinctly on the SIAF board, and using Real's logic (there's an oxymoronic use of the word), it makes sense. Anyhoo, if a stock goes from .51 to $40 I just have to be there, even if it's just 1% of my total.

      Full Disclaimer: Remember, I am taking some powerful painkillers, and the extent of my DD has been reading posts on the SIAF board.
      I would advise anyone who is not willing to lose everything to stay far away from SIAF.

    • >> No need for insults. I'ld be a total numpty not to load up on a .51 cent stock which will soon be selling for $40.

      It has a PEG ratio of 0.01.
      1 is normal.
      That tells you, not only is the stock undervalued, but the growth rate isn't reflected in the share price either.

      >> I'm just glad I didn't lose 95% of my assests on ABAT and ALTI so that I still have some real cash to invest.

      Me too.

      >> Just to be clear, do you advise selling half at $20 and rebuying on any dips while holding firm with the other 50% of my SIAF?

      Buy and hold for two to three years. Don't trade.
      Two years from now nobody will want to sell the stock. Because they will spin off one subsidiary every year, starting in 2014, and pay out 70% as dividends. That's something like 50 cents per share every year. Not sure.
      You see, the market can't keep this stock down for long. Even if it wanted to.

      If it turns out that you are the only one who profited from this, in the end, then kudos to you.

    • Doc I too am starting to accumulate. Heck who can we trust more than the anti American "one star queen" I'm going all in on ALGI or whatever stock the "queen" recommends.
      Good investing to you and beware of "greeks bringing gifts"

    • No need for insults. I'ld be a total numpty not to load up on a .51 cent stock which will soon be selling for $40.


      I'm just glad I didn't lose 95% of my assests on ABAT and ALTI so that I still have some real cash to invest.


      Just to be clear, do you advise selling half at $20 and rebuying on any dips while holding firm with the other 50% of my SIAF?


      You know, these pain killers really remove the anxiety from buying a stock.


      Thanks again for the tip Dutch.

    • You're full of crap. And everyone knows it.

    • Thanks for the tip and affirmation Dutch. I'm starting to accumilate.

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