I think you are imagining the business about conductive grease leaching. A speculative or throw away comment. Careful application and a clean rag ought to help.
The creepage (distance along surfaces between conductors, similar to clearance the straight line through air) on the Thundersky cells I have is a couple inches and the voltage under 4V - I think that will be quite OK. This is speculation: I bet I could paint a track of conductive grease between the poles of a LiFePO4 battery and the current would be negligible. 4V is just not much pressure. I am not too worried about dry joints in my environment, but I would go with a conductive grease before a dielectric. If I see a problem then I will make a correction. A sealed box might be in order in some environments. My best and cheapest pack has all the cells welded together. > For a field repair I can imagine a dry > joint would be better. Ok, I'll bite. Proof? ;) "Proof" is that if a thing is oily, or particularly if it is greasy, dirt will get stuck in it and you will have difficulty cleaning it outside a shop environment. Definitely preventable with care. Am I ever allowed any speculative or throw away comments now that I am the research guy? On Mon, Jan 13, 2014 at 9:42 PM, David Nelson <[email protected]> wrote: > On Mon, Jan 13, 2014 at 6:06 PM, Michael Ross <[email protected]> > wrote: > > My main comment before I get distracted... is: Why would anyone want to > > put an insulating paste in an electrical connection when a conductive > > material could be used instead? > > Because the conductive material could leach across the tops to provide > a conductive path between terminals much like acid mist from lead-acid > batteries do? Naturally the hope/assumption is that the dielectric > grease squishes out sufficiently to create a joint that is good enough > and will last longer than a dry joint. Moist and high humidity > climates can make the dry joint eventually corrode to the point that > it leaves too little conductive path. Try living for a while on a > central pacific island and you will know what I mean. The Al can > corrode to the point that the connection is no good where as one > coated with a dielectric will preserve it much longer. > > > For a field repair I can imagine a dry > > joint would be better. > > Ok, I'll bite. Proof? ;) > > -- > David D. Nelson > http://evalbum.com/1328 > http://www.levforum.com > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -- Put this question to yourself: should I use everyone else to attain happiness, or should I help others gain happiness? *Dalai Lama * Tell me what it is you plan to do With your one wild and precious life? Mary Oliver, "The summer day." To invent, you need a good imagination and a pile of junk. Thomas A. Edison<http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 550-2430 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell (919) 513-0418 Desk [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140114/b5c08ffe/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
