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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: lithium explosion
Date: Sun, 14 Apr 2024 01:03:34 +1000
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On 13/04/2024 3:39 am, Liz Tuddenham wrote:
> Bill Sloman <bill.sloman@ieee.org> wrote:
> 
>> On 12/04/2024 6:55 pm, Liz Tuddenham wrote:
>>> Bill Sloman <bill.sloman@ieee.org> wrote:
>>>
>>>> ... if
>>>> it had a safe place to dissipate the stored energy.
>>>
>>> What if it didn't?
>>
>> Then it probably needs to include a louder hooter and brilliant flashing
>> lights to serve the same purpose, if more slowly than a purpose designed
>> dissipator.
>>
>>>> ..was being looked
>>>> after by somebody who ignored the early warnings.
>>>
>>> That includes 99% of battery users who wouldn't know what to do it they
>>> noticed the warnings or wouldn't be able to do it anyway.
>>
>> A voice message could be pretty explicit. All the message needs to say
>> is to move the battery outside to where it can't do much damage if it
>> bursts into flames. EV car batteries are big enough that that's quite a
>> way, but cars are designed to move appreciable distances.
> 
> It's not really a very good selling point.  "Oh, by the way, this model
> has the latest upgrade and tells you when it is going to explode, so you
> can get out of the way".

You don't seem to have been paying attention. If you deal with the 
warning by discharging the battery, and making it safe, it won't explode.

No stored energy means no dramatic heating, no breaking of the seals 
that protect the contents of the battery from atmospheric oxygen, and no 
explosion or fire.

Yo do have to get rid of the battery and presumably replace it, but that 
was implicit in the original purchase. They aren't sold on the basis 
that they are going to last forever.,

-- 
Bill Sloman, Sydney