===== All LiFePO4 cells compare Database =====

[Doctorbass]

http://liionbms.com/php/cells.php

This is an excellent cell manufactur and spec compare!!!

Keep this link in your favorites!!!

Doc

 

[swbluto]

This is what is said about the a123s.

"Actively recalling cells already in the field."

and

"The original* M1 cell explodes like a fire cracker if exposed to flames, violently ejecting its contents (seen it myself, seen a video of a controlled FAA test)"


and

"(*) There is evidence that A123 has since changed the M1 cell: its DC resistance now appears to be much higher, and matches the K2 cell's. Their propensity to explode may have been reduced in the process, but we know of no testing in that regard."

True?

 

[Doctorbass]

This is what is said about the a123s.

"Actively recalling cells already in the field."

and

"The original* M1 cell explodes like a fire cracker if exposed to flames, violently ejecting its contents (seen it myself, seen a video of a controlled FAA test)"


and

"(*) There is evidence that A123 has since changed the M1 cell: its DC resistance now appears to be much higher, and matches the K2 cell's. Their propensity to explode may have been reduced in the process, but we know of no testing in that regard."

True?

A bit of exageration here! :lol:

Did you watched my video about the A123 and li-co crush test?.. no explosion...

and i think that if Gm had considered using them.. it would be very surprising that they could explode!

Maybe pop when abused .. but not explode!

. Please advise me if you see other strange descriptions like that...

Doc

 

[swbluto]

I'm wondering about multiple points. The explosion could be understandably exaggerated(I did see your video), but I'm wondering if they're actually recalling the early a123s and the "new ones"(assumably the ones to replace the recalls) have a significantly higher internal resistance. But I suppose you don't get a lot of new ones to play with?

 

[HAL9000v2.0]

They say Headway's are Cobalt not LiFePO4? Is this correct?

 

[liveforphysics]

Headways are LiFePO4 for certian. Cobalt chemistry does not function in the voltage range of a headways cell.

 

[Doctorbass]

ok.. I think this source is not asexact as i thought... i'll revise that tomorrow.

Doc

 

[voicecoils]

headway do lifepo4 and li-ion only AFAIK

 

[CGameProgrammer]

It says A123s explode if exposed to flames, not if crushed. There have already been tests where they've been drilled into, hammered, etc., and been safe. I don't know if anyone here has tried lighting them on fire. Of course this is a nearly impossible circumstance.

Regarding Headways, they're right -- they can't be LiFePO4 if they're 3.7V. Until someone does an analysis of Headways, their claims must be met with skepticism.

 

[Lapwing]

Spent a bit of time looking for fire induced exploding A123 video without luck. Searched the FAA's website.

Lots of info and examples of CR123 lithium issues including what happens if you toss 'em in a fire. Also FAA banning 123A bulk shipments of batteries (these are totally different species of chemistry) - but nothing on exploding A123 rechargables.

In fact the burned out Prius plus, where a fire resulted from bad assembly of battery lugs, and local extreme heating at the lug, found the battery pack itself largely functional.

Anyone have a link to more info about fire equals explosion of A123's ? Or to we need volunteers for testing