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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

  • Ramon Natal February 26, 2011 at 5:39pm

    Dean that correct!  Thanks for the info!!

    Altairnano when designed this tech noticed that the voltage of the batteries was lower, but later they got it fix and the current versions are = in voltage to the reg lipos.

  • Darren February 24, 2011 at 7:42pm
    I still think LiTi sounds more like a coctail Elvis would drink :)
  • Dean Lamborn February 24, 2011 at 10:53am
    "A lithium-titanate battery is a modified lithium-ion battery that uses lithium-titanate nanocrystals on the surface of its anode instead of carbon. This gives the anode a surface area of about 100 square meters per gram, compared with 3 square meters per gram for carbon, allowing electrons to enter and leave the anode quickly. This makes fast recharging possible and provides high currents when needed. The disadvantage is that lithium-titanate batteries have a lower voltage and capacity than conventional lithium-ion battery technologies."
  • Ramon Natal February 21, 2011 at 9:49pm
    Looking into all this info of new lipo techs and stuff , found that the race is battery safety, and just making a point, the Titanate is for the anode not the cell, the cells are the same as all the lipos out there on the market. and what makes the "C" rating its not the cells, its not the anode and is not a special ultra sofisticated technology, is just a nano filler that is being used since 10C batteries, obviously the more the filler the higher the C rate, and this is for all the lipos.

    This Nano-particle oxide fillers can be SiO2 , LiO2 or Al02 and their job or effect on the cells is to increase conductivity.
  • Ramon Natal February 21, 2011 at 9:27pm
    Yes it is, no doubt for that Bertrand! thanks for the info!!

    actually I was looking on the TP specs sheet those are the TP G4 V2 20C are you talking about?

    The TP G4 V2 20C - 40C will be lighter being in the same category for the "C" rate, usually a battery of 20C will be lghter than a 40C and so on. Less C less weight.
    If you compare this same battery category:
    TP G4 V2 20C with the TP G4 PRO Power 30C - 60C its heavier being 808g
    and the TP G4 Pro Power 45C - 90C 822g

    Thats why the Titanate 5000mAh 60C - 110C 829g will be heavier ;)
    I think that a TP or other brand lipo under the same "C" rate will be at the same weight or only a few grams of difference.
  • Ramon Natal February 21, 2011 at 5:48pm
    Well I.S. if thats your winner why do you asked me? I dont understand your point neither im telling you to buy any specific brand. My post is based on this new Li-Ti, but a good member wrote that they seem a little heavier and I took the time to make the comparison.

    I think this post has gone from a informative purpose to a battery challenge and thats not my intention. I think that why we just keep the post informative and bring other tech similar to the Li-Ti to discussion and learn from each other post.

    I found really good stuff of what happens to our lipos while charging and discharging, thats a good answer to why this lipos life is short. I will be pleased if the informative contributions continue for the knowledge of our members! :)
  • Darren February 21, 2011 at 5:30pm
    4g lighter per battery can add up... but what is the output comparison per gram?
  • Jack Crossfire February 21, 2011 at 5:12pm

    No. Lithium Phosphorus was the perfection of LiPo.  Surprising how little we know about battery physics.  Only recently has anyone tried documenting what happens to the electrodes.

     

     

  • 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

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