Newbie question, what is battery venting?

[Mooch]

My point is that if it's your battery that vents, all the statistics in the world would make no difference to you.
So the objective should be to never do something that would make your battery become the statistic.

So clear now when I reread your post. Thanks for the explanation...I agree!

 

[noway]

Thrasher" data-source="post: 15805540" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch">

This was more common with ni- mh and other rechargables. The li battery we use is sealed, moisture and lithium do not mix and can't be exposed to air like that

That is where most of my battery experience is and since I haven't done radio control for about 10 years, I haven't done much with lithium unless you're talking about nirvana.

So I searched "battery venting" and I got nothing.

I don't see where exploding and venting are interchangeable except for on this forum.

Does a giant star also vent when it's reactor shuts down? I tend to call it a supernova.

 

[Thrasher]

That is where most of my battery experience is and since I haven't done radio control for about 10 years, I haven't done much with lithium unless you're talking about nirvana.

So I searched "battery venting" and I got nothing.

I don't see where exploding and venting are interchangeable except for on this forum.

Does a giant star also vent when it's reactor shuts down? I tend to call it a supernova.

Umm lemme see.

Depends, here's the tricky part. The li batteries aren't just lithium any more, many that we use here are called li- hybrids and contain blends of minerals. It is the blending that allows them to obtain such high current output while still maintaining a relatively high man.
Some of the earlier blends are in fact quite volitile and will most definitely explode if they fail, as in really honestly go boom and blow sh,, up and do it a pretty violent manner. Flames, gas, schrapnel.etc.

What they found when mixing the hybrids is they can control this to a point by how they blend them.
Now, most of the cells we use do not Burst into flames. They simply vent the hot gas without ignition of the internal minerals.and this is by design

The battery can/casing is also specifically designed with a small port on top that will, under pressure pop open acting as a release valve.
Early cells did not have this.

So now we get to your part.
A a venting battery exposed to impact can explode, like tossing oy across the room it hits the floor and goes boom.
B a venting battery trapped in a poorly designed mod with no or blocked airholes turns into a pipe bomb, and those are bad's pictures.

Not only here but on vaping and flashlight forums everywhere, since we only use these batteries inside sealed devices it is understood and accepted that venting leads to risk of explosion and has become interchangeable with that context in mind.

And no not many believe venting and exploding are two words that mean the same thing just that both events can lead to the same results.since lack of venting is most likely the cause for an explosion
.

 

[noway]

Umm lemme see.

Depends, here's the tricky part. The li batteries aren't just lithium any more, many that we use here are called li- hybrids and contain blends of minerals. It is the blending that allows them to obtain such high current output while still maintaining a relatively high man.
Some of the earlier blends are in fact quite volitile and will most definitely explode if they fail, as in really honestly go boom and blow sh,, up and do it a pretty violent manner. Flames, gas, schrapnel.etc.

What they found when mixing the hybrids is they can control this to a point by how they blend them.
Now, most of the cells we use do not Burst into flames. They simply vent the hot gas without ignition of the internal minerals.and this is by design

The battery can/casing is also specifically designed with a small port on top that will, under pressure pop open acting as a release valve.
Early cells did not have this.

So now we get to your part.
A a venting battery exposed to impact can explode, like tossing oy across the room it hits the floor and goes boom.
B a venting battery trapped in a poorly designed mod with no or blocked airholes turns into a pipe bomb, and those are bad's pictures.

Not only here but on vaping and flashlight forums everywhere, since we only use these batteries inside sealed devices it is understood and accepted that venting leads to risk of explosion and has become interchangeable with that context in mind.

And no not many believe venting and exploding are two words that mean the same thing just that both events can lead to the same results.since lack of venting is most likely the cause for an explosion
.

Ah, cool. Thanks. So instead of an all out explosion, they found a way to release the energy a little slower. If I read that right.

 

[Thrasher]

Correct they changed some minerals so it doesn't flame up and added a pressure release

 

[nyiddle]

On that note, if anyone ever were to perform a "battery venting test" it'd be really interesting. I'd like to see how mech mods compared to regulated mods (how big of a failure the chip can actually prevent), and beyond that, just certain mech mods that claim they have adequate battery venting. I mean, you'd expect mods that are touted as "competition mods" to be build to vent better than a mod that isn't one, but I doubt that's the case.

In fact, even though it's a terrible mod (just horrible voltage drop) the AR mod is the only mod I could ever imagine adequately venting a battery without some sort of expansion to the mod itself/all out explosion.

 

[Mooch]

<snip>
In fact, even though it's a terrible mod (just horrible voltage drop) the AR mod is the only mod I could ever imagine adequately venting a battery without some sort of expansion to the mod itself/all out explosion.

LOL, that's about how much venting you need! Helps to cool the cell a bit too. Well, it at least doesn't allow heat to build up around the cell inside the mod.

 

[Mooch]

Just realized that the AR mod might be a very handy item for the 18650 cell testing I do....safety cage. Thanks for posting that! I have a ceramic cloth lined 50-cal ammo can but that's huge for single cell tests.

The price for a new V1.5 model is wayyyyy to high though for something I'm going to very severely abuse. I'll check around for a junked one someone might be selling. Hmm...does ECF have a Want To Buy section? Don't really have anything to trade. Time to check the forum list...

 

[Thrasher]

$22.62 18650 Hollow-out Mechanical Mod - stainless steel at FastTech - Worldwide Free Shipping

 

[Mooch]

$22.62 18650 Hollow-out Mechanical Mod - stainless steel at FastTech - Worldwide Free Shipping

You are da man! Thank you sir!

 

[nyiddle]

Just realized that the AR mod might be a very handy item for the 18650 cell testing I do....safety cage. Thanks for posting that! I have a ceramic cloth lined 50-cal ammo can but that's huge for single cell tests.

The price for a new V1.5 model is wayyyyy to high though for something I'm going to very severely abuse. I'll check around for a junked one someone might be selling. Hmm...does ECF have a Want To Buy section? Don't really have anything to trade. Time to check the forum list...

Heh yeah I was gonna mention that you can find the clones for VERY cheap.

Just keep in mind, they're like.. Really really low quality. I've used one and it feels cheaper than a Nemesis clone. And that's saying a LOT.

 

[Mooch]

Thanks for the heads up! I'll keep my expectations low.