Graphene batteries...can they catch fire like LIPO's if punctured?

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  • cybercrxt
    Fast Electric Addict!
    • Mar 2009
    • 2909

    #1

    Graphene batteries...can they catch fire like LIPO's if punctured?

    As the title says. I have not purchased lipos in a while, and did some reading on these new packs today...What I have not found..and probably just missed it...but are these as volatile as LIPOs have been? I would gladly switch all mine out if the new stuff is safer. Let me know guys. Thanks, Mike
    Laser cut, birch plywood rc race boat kits- WWW.MLBOATWORKSRC.COM WWW.DINOGYLIPOS.COM
  • Prodrvr
    Senior Member
    • Jul 2015
    • 701

    #2
    Lipo's aren't volatile. And yes, any lipo will light off if you puncture it with a nail.

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    • cybercrxt
      Fast Electric Addict!
      • Mar 2009
      • 2909

      #3
      That really answered nothing.
      Laser cut, birch plywood rc race boat kits- WWW.MLBOATWORKSRC.COM WWW.DINOGYLIPOS.COM

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      • ray schrauwen
        Fast Electric Addict!
        • Apr 2007
        • 9471

        #4
        They are no more or less safe than any other lipo batteries.
        Nortavlag Bulc

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        • Prodrvr
          Senior Member
          • Jul 2015
          • 701

          #5
          Originally posted by cybercrxt
          That really answered nothing.
          Well, what do you want to hear? I answered the question.

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          • Fluid
            Fast and Furious
            • Apr 2007
            • 8012

            #6
            Why is the OP worried about a puncture? That is probably the least common reason to trigger LiPo volatility. Several years ago a club member shot an old pack with a .22 rifle repeatedly - no fire or explosion. YMMV.

            I seriously doubt that "graphine" cells are "safer" than other recent cells. Always treat all LiPos as potentially dangerous. Gasoline is dangerous too, but most of us use it for a lifetime without problems.



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            • cybercrxt
              Fast Electric Addict!
              • Mar 2009
              • 2909

              #7
              Well, the articles I read about graphene as a conductor hinted the chemistry was safer, and fires were not an issue. What my main question is, has anyone purposely punctured one to see what the result was. I was not trying to be harsh to you prodrvr, but lipos are not all the same. The answer you had given was just very general, and sounded like it came from someone who really didn't have any clear answers on graphene in particular. Thats all, sorry to lash back. As the chemistry evolves, and it has many times since I have done RC, I always hope to hear of the removal of fire potential. Lets face it, a lipo fire is volatile! It is uncontrollable, and will take a house down. Now obviously that requires a certain situation to get them to act in that manor, and I practice and teach safe handling of the packs, but nothing is perfect. I am was just trying to see if this was in some way better besides the obvious, like longer cell life, and more stable if over discharged.
              Laser cut, birch plywood rc race boat kits- WWW.MLBOATWORKSRC.COM WWW.DINOGYLIPOS.COM

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              • T.S.Davis
                Fast Electric Addict!
                • Oct 2009
                • 6221

                #8
                I run all graphene now. I don't know that they are any more stable though. Treat them as they are.....Lipo cells.

                If you want to get safe.....r you could get a BatSafe. I've not had a fire in one (fingers crossed) but it's an extra layer of "please don't burn down my house".
                Noisy person

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                • Prodrvr
                  Senior Member
                  • Jul 2015
                  • 701

                  #9
                  Well, I've been using lipo's exclusively for the last 10 years. The closest I've ever got to a problem with one is with is when I had no idea that storing in a very hot garage is a bad thing for them. My first lipo was a $152 2 cell from Maxamps. Used it twice. Left it on a shelf with my other nimh batteries. Go into the garage one day to find the battery puffed up. That's when I really began to get an education on these batts. They are a LOT safer today than they were back then. Here's one example: about six months ago, I was maidening a new plane and at an elevation of 161 feet, had a control issue and screwed it straight into the ground. Had a 3 cell in it that looked like an "S" after the crash. Well, nothing ever happened. It still takes a full charge, I.R. hasn't gone up, and it's still in use. Certainly wouldn't have been the case years ago.

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                  • T.S.Davis
                    Fast Electric Addict!
                    • Oct 2009
                    • 6221

                    #10
                    That's pretty accurate I think. We still have to treat them with respect but they are less scary than they used to be.

                    I often wonder how many problems were a result of people not doing their homework before charging etc. Not balancing or over discharging just because we were all so ignorant.

                    My biggest problems anymore is when I do something dumb. A dead short. That kind of thing. A dead short is a real thing btw. Seems some of us have to do it once ever couple years. Suck but the cells still don't burst into flames. Your fingers maybe but not the cells.
                    Noisy person

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                    • Prodrvr
                      Senior Member
                      • Jul 2015
                      • 701

                      #11
                      Originally posted by T.S.Davis
                      My biggest problems anymore is when I do something dumb. A dead short. That kind of thing. A dead short is a real thing btw. Seems some of us have to do it once ever couple years
                      I just did that about a month ago. Shorting a 6 cell scared the crap out of me lol. Running batts in series is new for me. Never had the need to do it before. That one dead short experience was enough of a learning experience.

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                      • Erroneous
                        Senior Member
                        • Apr 2016
                        • 451

                        #12
                        Ive only had one lipo problem in about 10 years. Flipped my car and didnt notice any damage to the body or battery packs. Cruisin home and one erupted in my front floorboard. I think graphines are a little safer just because they are more forgiving. More cycles, more stable and just flat out better discharge. Fingers crossed on the dead short.

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                        • T.S.Davis
                          Fast Electric Addict!
                          • Oct 2009
                          • 6221

                          #13
                          I'm not sure if everyone is doing this but the better cells I've run have a layer of G10 or similar protecting the flat surface of the pack under the shrink. Think it helps a ton.
                          Noisy person

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                          • Fluid
                            Fast and Furious
                            • Apr 2007
                            • 8012

                            #14
                            I have run LiPos for over ten years and have not had any bad experiences with them. But I have personally witnessed LiPos burst into flames four times - all were cheap HK packs and three were apparently over-discharged and got too hot. Club members have recounted stories of packs which burst into flames while charging, I saw this happen once at an out-of-town race several years ago. Fortunately that pack was being charged in an ammo can and collateral damage was very minor.

                            No evidence I have seen supports the statement that "graphines" are any safer than newer previous LiPo chemistries. Believe whatever you want, but LiPo batteries store a LOT of energy. Buy decent quality cells and treat them as if they are a loaded gun, and you won't have any problems.



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                            • photohoward1
                              Fast Electric Addict!
                              • Mar 2009
                              • 1610

                              #15
                              My fingers have healed BTW. lots of power in 10s dead short.


                              Sent from my iPhone using Tapatalk

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