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  #1  
Old 03-02-2017, 12:11 PM
LEZ1675 LEZ1675 is offline
Bill Welter
 
Join Date: Feb 2010
Location: Colorado Springs, CO
Posts: 500
Default Lithium Ion Battery Self-Destruct

Burrall Sanders sent info and video of a Lithium Ion Battery overheating and self-destructing, like micro exotherm:

From Burrall:

"We have a Cozy MKIV in the shop that I am working on the wiring. The builder installed an Aerovoltz Lithium Ion battery. Yesterday, I heard a soft poof and then a hiss coming from the battery, and within ten seconds the battery was spewing a huge smoke plume and was melting the battery's case. We scrambled to get the hanger door open and the plane pushed outside. While the smoke decreased after about 3 minutes the heat continued. I decided I could get in the back of the plane and cut the battery cables with a good set of cable cutters. So, I held my breath and climbed in and as quickly as I could I cut the cables and tossed the battery out on the ground. It was then I was able to get a video of the battery as it continued to self destruct. The battery burned for at least ten minutes before it quit spewing smoke, sparks and its internal parts.

We have just finished installing a pair of these batteries in a Long-EZ and within a few days of installation one began showing signs of not holding a charge and I noticed it was getting warm to the touch. I removed it and Aircraft Spruce promptly warranted the battery and sent us a new one. The one that burned yesterday was showing similar signs of not holding a charge and about an hour before it burned I noticed it was warm to the touch. I had no idea at the time of the first battery failure how close it was to the catastrophic results that we saw yesterday.

It is absolutely horrifying to think of that happening while airborne. As fast as it escalated it would have filled the cockpit with that terrible smoke and fumes in just a couple seconds. By the time I took the video linked below the smoke had tapered off considerably. In my opinion no one in the aircraft would have survived had this happened while in the air. No one should even consider having these batteries in the aircraft with them.

One of the scariest things I have seen. Might as well have a wing come off, the outcome is the same. I have added a link below to the video I took. Have a look at the video, you'll be shocked.

Best, Burrall Sanders"

https://vimeo.com/206299953
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  #2  
Old 03-02-2017, 03:33 PM
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TMann TMann is offline
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Location: Omaha, NE
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Default Re: Lithium Ion Battery Self-Destruct

Yeah, the Lithium batteries are very tempting but just not ready for primetime just yet.
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  #3  
Old 03-03-2017, 03:54 PM
karu karu is offline
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Location: Charleston,WV
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Default Re: Lithium Ion Battery Self-Destruct

With all the resources and know-how, even boeing couldn't get it right with lithium batteries, not to mention samsung phones. Like Tmann said, not at all ready for prime time.
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  #4  
Old 03-08-2017, 02:58 PM
argoldman argoldman is offline
Rich
 
Join Date: Dec 2004
Location: chicago area
Posts: 1,170
Default Re: Lithium Ion Battery Self-Destruct

Ya, I agree,

Lets all get rid of our cell phones, laptops, desktop computers (clock battery), ipads, digital watches, aircraft panel radios which need an on-board battery to keep current (GPS) and the myriad of other items that have safely used LI-ion batteries for many years.

Without offering an opinion for or against, It is necessary, or at least a good idea to look at "the rest of the story before condemning or accepting something which may be foreign to one's way of thinking.-- Or just use what you feel best using.

I better get off of this desktop computer lest it burst into flames.
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Old 03-09-2017, 09:31 AM
Fred N. Fred N. is offline
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Location: Southern Nevada
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Default Re: Lithium Ion Battery Self-Destruct

Rich, I love the way your contain yourself!!!!

I better get off of this desktop computer lest it burst into flames.[/quote]
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  #6  
Old 03-09-2017, 11:00 PM
Longshot Longshot is offline
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Join Date: Jun 2007
Location: Tucson
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Default Re: Lithium Ion Battery Self-Destruct

Rich, all the things you listed could injure, but a aircraft battery blowing in flight will probably kill you!
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  #7  
Old 03-11-2017, 08:25 AM
argoldman argoldman is offline
Rich
 
Join Date: Dec 2004
Location: chicago area
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Default Re: Lithium Ion Battery Self-Destruct

So true Don,

But under the right circunstances a fire in each one of them except possibly the desktop could also be fatal
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