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New Lithium Titanate Batteries the perfection of Li-po

Posted by Ramon Natal on February 21, 2011 at 6:28am
scib-battery.jpg

The very low internal resistance of the Batteries (typically 8 – 10 milliohms) give huge benefits such as:

  • Far longer battery lifetimes with upwards of 1000+ cycles expected for a battery pack.
  • Lower heat build-up during the discharge cycle.
  • Faster cell recovery.
  • Lower voltage drop under loads, which equates directly to a much higher RPM per volt from your electric motor.
  • More available power for the battery pack.
  • Ability to charge at higher charge rates (It is important to allow the battery to cool below 25c before charging commences).
  • Suitable for all applications and especially so for use in high current applications.

 

If you wanna try them for your R/C project, you can find them .... Lightspeed Batteries

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Comments

  • I.S. February 21, 2011 at 3:39pm

    How about this one?

    Turnigy nano-tech 2200mah 3S 45~90C  (upto 10C charging! )3 cell 11.1v Lipo Pack......201g with wire plug and wraping

    isn't it a winner?

    I think the main point to discuss is the endurance in terms of number of charge cycles.

    Max Charge Rate (C) 10
  • Ramon Natal February 21, 2011 at 3:09pm

    Well comparing weight

     

    Turnigy nano-tech 2200mah 3S 35~70C 3 cell 11.1v Lipo Pack......199g with wire plug and wraping

     

    Lightspeed Lithium Titanate 2200mAh 40~70C 3 cell 11.1v Lipo Pack......195g with wire plug and wraping 

     

    its almost the same, LiTi lighter by 4 g but that insignificant.

     

  • Ramon Natal February 21, 2011 at 2:53pm

    Hi Ken liked your info, and thank for posting it!!

    what i was trying to say is that the issue with the normal anodes already used and also the carbon anode is that  when we charge and discharge this kind of batteries  the anode suffers an effect called Lithiation, slowly degrading the anode because of the flow of ions through it. by time a degraded anode start causing all the problems we already know about. I believe that this is the reason why by safety we should not charge a regular lithium pack over 1C. a higher rate will cause a faster degrade on the electrodes and death of the battery. 

    medusa-wire.jpgIn this case a SnO2 wire was used, but as an example ths is what it happens to the anode when charging them and discharging them.

    Here is the video... Look at the ions flowing like juice on the wire making it to swell and contort

  • Ken February 21, 2011 at 1:39pm

    re. The anode of a usual Lipo is made out of carbon, causing all the problems we know about them.

     

    If we ignore for the moment that Li is an alkali metal, and true to all elements in its group, it reacts vigorously with water (including atmospheric moisture) to produce hydrogen gas (and the metal hydroxide). Fortunately, the reaction with Li is not as exothermic as higher mass alkali metals (for example Na or K) so the H2 is less likely to spontaneously ignite.

     

  • Ramon Natal February 21, 2011 at 12:04pm
    Justin yes actually i tried to find other sellers but it seems that the only one selling them right now for R/C purposes are them :/ hope this tech get on other stores soon! and yes! Lipos came to stay!!
  • Darren February 21, 2011 at 11:39am
    may have gotten that in the wrong order, so dont quote me on that part :) lol
  • Darren February 21, 2011 at 11:35am
    LiPo-Nano, then LiFe next, then LiTi. Its all a progression. They just need to earn thier R&D bucks+ back before the next gen gets a foothold
  • Overwatch February 21, 2011 at 11:12am
    Lipos will be here for a while. Companies invested in lipo equipment and they will want to see it pay for itself, so they'll keep the production going as long as it takes.
  • Justin February 21, 2011 at 10:47am
    Is the link in OP the only place we can get them right now ?
  • Ramon Natal February 21, 2011 at 10:10am
    Nice another found! The Lightning GT (Fastest Electric Car) runs on 30 nano-titanate cells.

    Now it make sense why it was a classified military technology... :S
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