http://green.autoblog.com/2014/03/02/nissan-leaf-battery-cell-torture-test-fire/ Nissan Leaf battery cells put through torture test, live to charge again by Domenick Yoney Mar 2nd 2014
[image http://o.aolcdn.com/hss/storage/adam/d20b5d961efb613567e7e22b894e7729/Leaf-battery-torture-test.jpg Leaf battery cells undergoing torture test video http://www.youtube.com/watch?v=Jz37WycW-7E NISSAN LEAF BATTERY CELL - FIRE and DESTRUCTION TESTS nikmaster2· Feb 26, 2014 A used battery form Nissan Leaf 3.8V 33Ah, tested for how likely to catch fire when is destroyed or in flames. We had no success make it burn. Same battery after the burn test was charged/discharged twice at 1/3C - 10A - it has 30Ah capacity remaining. Before the test this cell was under salty water for 2 hours - you can see the contact are destroyed. ] One minor chink in the armor of the Tesla Model S is that a small number have caught fire, once their battery packs were penetrated. Nissan Leaf drivers, however, might just be able to weather such an event without an ensuing CarBQ. Our evidence for such a claim? A video that has surfaced of cells from a Leaf pack undergoing a battery of torture tests (pun somewhat-ashamedly intended). Shared by folks at the Hybrid Auto Center in Las Vegas – who offer for sale, among other things, used Leaf lithium battery modules – the footage shows salvaged cells being brutally assaulted with a screwdriver, and later, a propane torch. Granted, these tests are not the same thing as flinging a piece of metal into a working pack at 70 miles per hour, but they do claim to show that a puncture does not always equal a fire. Oh, and don't try this at home. When pierced through by the flat head tool, there is no explosion or eruption of flame. Instead, a rather modest wisp of smoke shyly emerges as the electrolyte next to the shorted area of the fully-charged foil pouch reacts with the influx of oxygen. Again and again, the blade descends, until the cell is riddled with holes. No fire. Amazingly, when connected with a voltmeter afterward there are still plenty of signs of life, and when it is charged and discharged (off-camera), it reportedly suffers only a slight loss of charge capacity. The video goes on to show another cell attacked with open flame with similar results. While the demonstration is, perhaps, somewhat crude, the message it sends is loud and clear: lithium batteries can be safe and rather robust, despite some freak accidents. Scroll below to watch the short presentation for yourself. [© 2014 AOL] http://www.treehugger.com/cars/nissan-leaf-battery-survives-screwdriver-stabbing-and-blowtorch-attack-video.html Nissan LEAF battery survives screwdriver stabbing and blowtorch attack! (video) March 3, 2014 ... It's not exactly done with a NTHSA-approved methodology - don't try this at home, kids! - but this real-world torture test of a Nissan LEAF battery cell shows just how much abuse these things can take without much dangerous happening. Quite impressive ... even without comparing it to anything else, it stands on its own as pretty impressive. Kudos Nissan! http://www.ubergizmo.com/2014/03/nissan-leaf-battery-survives-abuse-in-video/ Nissan LEAF Battery Survives Abuse In Video March 3, 2014 ... the YouTube video above, where a Nissan LEAF battery cell went through a real world torture test, including a blowtorch attack as well as a flurry of screwdriver stabs. Of course, the reason why the Nissan LEAF battery still works after all of the abuse is thrown at it could be due to the fact that only one cell received relatively low-energy impacts over a small area instead of the entire battery pack receiving high-energy impact from a large piece of metal debris. We do wonder whether future batteries will be totally non-flammable. That would certainly be quite an achievement ... http://ecomento.com/2014/03/03/video-happens-stab-electric-car-battery-set-fire/ Video: What happens when you stab an electric car battery and then set it on fire? March 3, 2014 ... abstract: A used battery form (sic) Nissan Leaf 3.8V 33Ah, tested for how likely to catch fire when is destroyed or in flames. We had no success make it burn. Same battery after the burn test was charged/discharged twice at 1/3C – 10A – it has 30Ah capacity remaining. Before the test this cell was under salty water for 2 hours – you can see the contact are destroyed. The most impressive aspect of this experiment isn’t that the battery cell hasn’t viciously retaliated, but that it still works after the torture ... For all EVLN posts use: http://electric-vehicle-discussion-list.413529.n4.nabble.com/template/NamlServlet.jtp?macro=search_page&node=413529&query=evln&sort=date Here are today's archive-only EV posts: EVLN: Interbike & OR Charged Up @e-Bike & Outdoor Tech EVent 5/14-15 NJ EVLN: 1st annual NA Intl EV Festival & Parade EVent 9/27-28 Windsor.ca EVLN: Aerovironment WA&OR e-Highway EVSE> $20mo unlimited, $7.50/use EVLN: Incentives help Atlanta, GA residents embrace EVs faster EVLN: Mayor backs Leaf EV car-pool system trial in Noosa.au EVLN: Tesla's $5B Battery Factory, Spending Big to Save Big in 2017 + EVLN: Fremont is the SF East Bay's epicenter for EVs {brucedp.150m.com} -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Tortured-stabbed-torched-Leaf-battery-cell-still-works-video-tp4668226.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.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)
