The burning of lithium cobalt batteries occurs more often when an idiot
is in control, as does that of petrol paper or any combustible material.
The use of cobalt in the wrong application is simply foolhardy and the
way some users treat them breaks all the rules a which have been know
since the mid 90's. The bloke with the mtoorcycle "experimented" with
reducing weight but failed to acknowledge the operating range of the cell.
In RC especially many blew because people ignored the use of balancers -
in fact several manufacturers encouraged it. Fires happened repeatedly
as people not charged cells without balncing bu then only pushed cells
to 'empty" and well beyong C-rates or to false C-rates.
More blew because people decided to hold onto damaged cells - rather
than disposing of them as instructed. There were cells damaged in
crashes, bent crushed or pierced etc - they didnt bother to discharge
them and/or left them in the car or the garage. The inevitable internal
shorts occurred and they caught fire. Not the fools fault the fault of
the chemistry despite the warnings on the handling sheets.
Even in RC fires are extremely rare now that management systems (ie
interactive chargers and balancers are used), the cars use solid casings
and due to improvements in the chemistry to reduce fires when shorted.
There are still problems with people who insist on running too high a
discharge rate, cells that are too cold or damaged cells.
My own experience after 10 years selling the things is there are some
people who will always expect batteries to do whatever they want, rather
than acknowledging they have to run within the capability of the
battery. And it is always the battery at fault.
On 13/06/2012 9:32 AM, Eric wrote:
> ost likely during charging--but given the temperature and pressure
> changes (even in the airplane cabin) that might be enough "squeezing"
> to set one off.Â
> >
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