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Thread: Lithium cell tests

  1. #71
    Above 5 posts moved here from General Chatter.

  2. #72
    Stefan - I have been ringing round all sorts of companies (ripmax, Thunder power, kokam etc) and not one of them can give me a straight answer to my question. Do you know how dangerous the fumes of a lithium (and other batteries, i know NiCads are very bad) in a fully closed arena are? Our featherweight arena is fully enclosed, and the smell of a burnt out motor lingers in the air for a while and we are concerned about the effects of a burning battery. Venting the arena wouldnt be a problem to do, but I would breathing apperatus be needed or is it very low risk?

    If anyone knows the answers could you please let us know asap - Safety is our largest concern and with a fully enclosed arena things like too much C02 or other chemicals in the air could be hazardous.

  3. #73

  4. #74
    Here are some MSDS (Material Safety Data Sheets) for various battery brands and materials:

    http://www.batteriesplus.com/t-msds.aspxhttp://www.batteriesplus.com/t-msds.aspx

  5. #75
    I dont know the situation on this, but will the robots testing the A123 cells be using them at this event?
    I hope not as it is a big disadvantage to the other teams in the competition as large weight loss can be gained with these batteries and higher performance (24v bosches ran on 30V). It might be a little late to mention it as I expect the teams using these batteries have probably bumped up the weight to 102kg now but i know If i was in the competition I would certainly not be happy with it!
    Hopefully I havnt noticed it anywhere that they are already banned from the UK Champs

  6. #76
    I have wondered this myself, but then I came to the conclusion that for a true test of the A123 cells, the UK champs is the place to do it. I dont mind if the robots are altered because of the weight difference, even though I doubt it that something has been done to the robots in question.

  7. #77
    Grant, I would assume not.

    There were 2 teams accepted by the FRA onto the trials of these

    http://www.fightingrobots.co.uk/meetings/014_03_02_07.pdf
    http://www.fightingrobots.co.uk/meet...4_03_02_07.pdf

    Those two teams were Mute and THz. Mute are not running in the competition so theyre not an issue, and I doubt that John would want to be seen as having any unfair advantage over others (other than the obvious engineering skill) so I wouldnt expect John to run trial technology in the FRAs UK competition - but John would have to answer that one for himself......?

    ... quick edit - could always just do a little bit of weight maths to ensure that those robots that are running the cells come in at the Nicad weight so trial teams dont have to fiddle ? Just a thought....

    Ed
    http://www.teamstorm.comhttp://www.teamstorm.com

    (Message edited by storm on August 13, 2007)

  8. #78

  9. #79

  10. #80
    quote:

    I will be adding some ballast to reduce the weight advantage
    Right on the tip of the axe.

    I think it is a good thing to see how they hold up in a full-on enviroment. I say go for it.

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