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tech / sci.electronics.design / battery problems

SubjectAuthor
* battery problemsJohn Larkin
+* Re: battery problemsEd Lee
|`* Re: battery problemsJohn Larkin
| +- Re: battery problemsEd Lee
| `- Re: battery problemsRick C
+* Re: battery problemsJan Panteltje
|+* Re: battery problemsAnthony William Sloman
||`* Re: battery problemsJeff Layman
|| +* Re: battery problemsLasse Langwadt Christensen
|| |`- Re: battery problemsFred Bloggs
|| +- Re: battery problemsFred Bloggs
|| `* Re: battery problemsAnthony William Sloman
||  +- Re: battery problemsJasen Betts
||  `- Re: battery problemsSpehro Pefhany
|`- Re: battery problemsjlarkin
+- Re: battery problemsTom Gardner
+* Re: battery problemsFred Bloggs
|`* Re: battery problemsjlarkin
| +* Re: battery problemsEd Lee
| |`- Re: battery problemsRick C
| +* Re: battery problemsFred Bloggs
| |+- Re: battery problemsEd Lee
| |+- Re: battery problemsjlarkin
| |`- Re: battery problemsFlyguy
| `- Re: battery problemsPhil Hobbs
`* Re: battery problemsBob Engelhardt
 +- Re: battery problemsEd Lee
 +- Re: battery problemsTom Gardner
 +- Re: battery problemsjlarkin
 +* Re: battery problemsAnthony William Sloman
 |+- Re: battery problemsLasse Langwadt Christensen
 |`- Re: battery problemsRick C
 `- Re: battery problemsDon

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battery problems

<pqslggdiehomu3o5540vh3fml2mtc44rqq@4ax.com>

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From: jlar...@highland_atwork_technology.com (John Larkin)
Newsgroups: sci.electronics.design
Subject: battery problems
Date: Wed, 04 Aug 2021 13:09:06 -0700
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 by: John Larkin - Wed, 4 Aug 2021 20:09 UTC

https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV

https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three

Re: battery problems

<e74acf30-9f4d-43a5-b08f-5fb75d804c01n@googlegroups.com>

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Subject: Re: battery problems
From: edward.m...@gmail.com (Ed Lee)
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 by: Ed Lee - Wed, 4 Aug 2021 21:57 UTC

On Wednesday, August 4, 2021 at 1:09:16 PM UTC-7, John Larkin wrote:
> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV
>
> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three

Different kind of sad case.

We are sad about virus and you are sad about batteries.

Re: battery problems

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From: jlar...@highland_atwork_technology.com (John Larkin)
Newsgroups: sci.electronics.design
Subject: Re: battery problems
Date: Wed, 04 Aug 2021 16:40:25 -0700
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 by: John Larkin - Wed, 4 Aug 2021 23:40 UTC

On Wed, 4 Aug 2021 14:57:33 -0700 (PDT), Ed Lee
<edward.ming.lee@gmail.com> wrote:

>On Wednesday, August 4, 2021 at 1:09:16 PM UTC-7, John Larkin wrote:
>> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV
>>
>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>
>Different kind of sad case.
>
>We are sad about virus and you are sad about batteries.

Power densities are scheduled to increase; that's a premise for all
sorts of applications, like grid storage and battery-powered aircraft.
Stuffing agressive chemical reactants very close together, and for
cheap, could be a challenge.

GM's global recall sounds expensive.

I'm not sad, as long as nobody forces me to buy an electric car.
Actually, I'm rarely sad about anything, unless I curdle the bread
pudding; that's the main anxiety in my life.

Re: battery problems

<6426144b-b9f6-4bc5-acf8-f4a815945ca0n@googlegroups.com>

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Subject: Re: battery problems
From: edward.m...@gmail.com (Ed Lee)
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 by: Ed Lee - Wed, 4 Aug 2021 23:56 UTC

On Wednesday, August 4, 2021 at 4:40:36 PM UTC-7, John Larkin wrote:
> On Wed, 4 Aug 2021 14:57:33 -0700 (PDT), Ed Lee
> <edward....@gmail.com> wrote:
>
> >On Wednesday, August 4, 2021 at 1:09:16 PM UTC-7, John Larkin wrote:
> >> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV
> >>
> >> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> >
> >Different kind of sad case.
> >
> >We are sad about virus and you are sad about batteries.
> Power densities are scheduled to increase; that's a premise for all
> sorts of applications, like grid storage and battery-powered aircraft.
> Stuffing agressive chemical reactants very close together, and for
> cheap, could be a challenge.
>
> GM's global recall sounds expensive.
>
> I'm not sad, as long as nobody forces me to buy an electric car.
> Actually, I'm rarely sad about anything, unless I curdle the bread
> pudding; that's the main anxiety in my life.

I am not really sad about virus either, just responding to Data about Doomday Deadly Delta Dawn variants. I am more curious than said, as data available from NCBI doesn't really agree with what everybody is saying in news media.

Re: battery problems

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From: pNaOnStP...@yahoo.com (Jan Panteltje)
Newsgroups: sci.electronics.design
Subject: Re: battery problems
Date: Thu, 05 Aug 2021 06:33:21 GMT
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 by: Jan Panteltje - Thu, 5 Aug 2021 06:33 UTC

On a sunny day (Wed, 04 Aug 2021 13:09:06 -0700) it happened John Larkin
<jlarkin@highland_atwork_technology.com> wrote in
<pqslggdiehomu3o5540vh3fml2mtc44rqq@4ax.com>:

>
>https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers
>-are-taking-seriously/ar-AAMVBlV
>
>https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three

Batteries are always dangerous.
I have an old mp3 player, runs on one 1,5 V eneloop battery.
Put it in my pocket, wanted to bring it upstairs,
something burned in my side, thing was melting!
Now eneloops do not catch fire, but I did not expect those 1.5 volts AAA to have that much power!
Found the construction had a non-insulated wire to the positive pole all along the
side of the battery,
Battery insulation (just a piece of plastic foil) had been damaged over time, good short!
If if happens with li-ion you would be on fire.
Fixed it, new insulated wire, some hot glue, new battery terminal embedded in hot glue...
Looks like shit, plastic all deformed by the heat.

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Subject: Re: battery problems
From: bill.slo...@ieee.org (Anthony William Sloman)
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 by: Anthony William Slom - Thu, 5 Aug 2021 06:49 UTC

On Thursday, August 5, 2021 at 4:38:51 PM UTC+10, Jan Panteltje wrote:
> On a sunny day (Wed, 04 Aug 2021 13:09:06 -0700) it happened John Larkin
> <jlarkin@highland_atwork_technology.com> wrote in
> <pqslggdiehomu3o55...@4ax.com>:
>
> >
> >https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers
> >-are-taking-seriously/ar-AAMVBlV
> >
> >https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>
> Batteries are always dangerous.

Any stored energy is always dangerous. Big batteries are lot less dangerous than large chunks of chemical energy. Bulk storage of ammonium nitrate has produced a couple of mega-ton explosions.

As usual, the structures that store the energy have to be designed to cope with unexpected energy release, and the engineering isn't always quite as perfect as one would like.

The big battery will get rebuilt in a way that will make less likely to blow up in the particular way reported. With any luck the designers will anticipate a bunch of similar problems. It doesn't take too many iterations to make failures very infrequent.

--
Bill Sloman, Sydney

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Subject: Re: battery problems
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 by: Tom Gardner - Thu, 5 Aug 2021 08:30 UTC

On 04/08/21 21:09, John Larkin wrote:
>
> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV
>
> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three

Petrol/diesel burns quite effectively too.

It has recently been noted over here that car insurance costs
are higher if the car is left in a garage rather than on the
drive[1].

Battery fires are likely to exacerbate that.

[1]The suspicion is that cars are getting larger (think SUV)
and so are a tighter fit into many old garages, with the
inevitable scrapes.

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 by: Jeff Layman - Thu, 5 Aug 2021 13:07 UTC

On 05/08/2021 07:49, Anthony William Sloman wrote:
> On Thursday, August 5, 2021 at 4:38:51 PM UTC+10, Jan Panteltje wrote:
>> On a sunny day (Wed, 04 Aug 2021 13:09:06 -0700) it happened John Larkin
>> <jlarkin@highland_atwork_technology.com> wrote in
>> <pqslggdiehomu3o55...@4ax.com>:
>>
>>>
>>> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers
>>> -are-taking-seriously/ar-AAMVBlV
>>>
>>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>>
>> Batteries are always dangerous.
>
> Any stored energy is always dangerous. Big batteries are lot less dangerous than large chunks of chemical energy. Bulk storage of ammonium nitrate has produced a couple of mega-ton explosions.

Unusual for you to get your facts so wrong, Bill. A few kilotons, maybe,
but megatons? Not a chance.

--

Jeff

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Subject: Re: battery problems
From: langw...@fonz.dk (Lasse Langwadt Christensen)
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 by: Lasse Langwadt Chris - Thu, 5 Aug 2021 13:16 UTC

torsdag den 5. august 2021 kl. 15.07.54 UTC+2 skrev Jeff Layman:
> On 05/08/2021 07:49, Anthony William Sloman wrote:
> > On Thursday, August 5, 2021 at 4:38:51 PM UTC+10, Jan Panteltje wrote:
> >> On a sunny day (Wed, 04 Aug 2021 13:09:06 -0700) it happened John Larkin
> >> <jlarkin@highland_atwork_technology.com> wrote in
> >> <pqslggdiehomu3o55...@4ax.com>:
> >>
> >>>
> >>> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers
> >>> -are-taking-seriously/ar-AAMVBlV
> >>>
> >>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> >>
> >> Batteries are always dangerous.
> >
> > Any stored energy is always dangerous. Big batteries are lot less dangerous than large chunks of chemical energy. Bulk storage of ammonium nitrate has produced a couple of mega-ton explosions.
> Unusual for you to get your facts so wrong, Bill. A few kilotons, maybe,
> but megatons? Not a chance.

yeh, the three biggest are all around 3000ton of ammonium nitrate

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Subject: Re: battery problems
From: bloggs.f...@gmail.com (Fred Bloggs)
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 by: Fred Bloggs - Thu, 5 Aug 2021 13:34 UTC

On Wednesday, August 4, 2021 at 4:09:16 PM UTC-4, John Larkin wrote:
> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV
>
> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three

This is so typical of the lack of intelligence in corporate and government management. Effective chemical fire extinguisher technology has been and continues to be developed to quench large lithium battery fires quickly and efficiency. This should be a legal requirement for any storage battery farm, an automated fire extinguisher, before they are permitted to build the project. Industry wants to skip it because it's expensive, and all they end up doing is hiding the true cost of their project. And don't hold your breath for any residential codes to require an extinguisher system for interior spaces used to park electric cars. These people are notoriously reckless and corrupt too. The idiots seem to think they're still in the 19th to mid 20th century mode of operation. Someone needs to remind them they are not.

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Subject: Re: battery problems
From: bloggs.f...@gmail.com (Fred Bloggs)
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 by: Fred Bloggs - Thu, 5 Aug 2021 13:36 UTC

On Thursday, August 5, 2021 at 9:16:06 AM UTC-4, lang...@fonz.dk wrote:
> torsdag den 5. august 2021 kl. 15.07.54 UTC+2 skrev Jeff Layman:
> > On 05/08/2021 07:49, Anthony William Sloman wrote:
> > > On Thursday, August 5, 2021 at 4:38:51 PM UTC+10, Jan Panteltje wrote:
> > >> On a sunny day (Wed, 04 Aug 2021 13:09:06 -0700) it happened John Larkin
> > >> <jlarkin@highland_atwork_technology.com> wrote in
> > >> <pqslggdiehomu3o55...@4ax.com>:
> > >>
> > >>>
> > >>> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers
> > >>> -are-taking-seriously/ar-AAMVBlV
> > >>>
> > >>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> > >>
> > >> Batteries are always dangerous.
> > >
> > > Any stored energy is always dangerous. Big batteries are lot less dangerous than large chunks of chemical energy. Bulk storage of ammonium nitrate has produced a couple of mega-ton explosions.
> > Unusual for you to get your facts so wrong, Bill. A few kilotons, maybe,
> > but megatons? Not a chance.
> yeh, the three biggest are all around 3000ton of ammonium nitrate

Yep- a few million pounds in a ship's hold contaminated with fuel oil. It doesn't help when the dock workers try to break up a salt crust formed on top of the pile with a few sticks of dynamite.

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 by: Fred Bloggs - Thu, 5 Aug 2021 13:52 UTC

On Thursday, August 5, 2021 at 9:07:54 AM UTC-4, Jeff Layman wrote:
> On 05/08/2021 07:49, Anthony William Sloman wrote:
> > On Thursday, August 5, 2021 at 4:38:51 PM UTC+10, Jan Panteltje wrote:
> >> On a sunny day (Wed, 04 Aug 2021 13:09:06 -0700) it happened John Larkin
> >> <jlarkin@highland_atwork_technology.com> wrote in
> >> <pqslggdiehomu3o55...@4ax.com>:
> >>
> >>>
> >>> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers
> >>> -are-taking-seriously/ar-AAMVBlV
> >>>
> >>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> >>
> >> Batteries are always dangerous.
> >
> > Any stored energy is always dangerous. Big batteries are lot less dangerous than large chunks of chemical energy. Bulk storage of ammonium nitrate has produced a couple of mega-ton explosions.
> Unusual for you to get your facts so wrong, Bill. A few kilotons, maybe,
> but megatons? Not a chance.

There was this massive explosion at Picatinny nearly 100 years ago. Not sure about those numbers in the article. It started when lightning struck a earth bermed storage bunker causing it to start smoking. The fire department arrived, these were really fearless people, and started hosing the place down with water. According to witnesses, after just a few minutes, the place exploded, the fire crew and everything around evaporated. The shock wave from the explosion caused what's called sympathetic detonation of the remaining storage area, which was quite large. They ended up with a huge mess.

https://nj1015.com/the-devastating-picatinny-arsenal-explosion-of-1926/

>
> --
>
> Jeff

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From: BobEngel...@comcast.net (Bob Engelhardt)
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Subject: Re: battery problems
Date: Thu, 5 Aug 2021 09:53:49 -0400
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 by: Bob Engelhardt - Thu, 5 Aug 2021 13:53 UTC

On 8/4/2021 4:09 PM, John Larkin wrote:
>
>...
> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>
>

The article mentions battery capacity in MW. Is that just journalistic
ignorance or are these batteries really measured in MW, not MWh? I'd
think that _energy_, not _power_, would be the metric.

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 by: Ed Lee - Thu, 5 Aug 2021 14:05 UTC

On Thursday, August 5, 2021 at 6:54:40 AM UTC-7, bobenge...@gmail.com wrote:
> On 8/4/2021 4:09 PM, John Larkin wrote:
> >
> >...
> > https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> >
> >
>
> The article mentions battery capacity in MW. Is that just journalistic
> ignorance or are these batteries really measured in MW, not MWh? I'd
> think that _energy_, not _power_, would be the metric.

They are utilized to stabilize 300MW power plant.

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From: spamj...@blueyonder.co.uk (Tom Gardner)
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Subject: Re: battery problems
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 by: Tom Gardner - Thu, 5 Aug 2021 14:08 UTC

On 05/08/21 14:53, Bob Engelhardt wrote:
> On 8/4/2021 4:09 PM, John Larkin wrote:
>>
>> ...
>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>>
>>
>>
>
> The article mentions battery capacity in MW.  Is that just journalistic
> ignorance or are these batteries really measured in MW, not MWh?  I'd think that
> _energy_, not _power_, would be the metric.

That's a standard problem, especially with "greens" that pronounce
on the subject. If I know I'm going to be coming across some of
their literature (and I use that word advisedly) at an exhibition,
then I take a marker pen to correct the inevitable energy/power
idiocies.

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 by: Anthony William Slom - Thu, 5 Aug 2021 14:27 UTC

On Thursday, August 5, 2021 at 11:07:54 PM UTC+10, Jeff Layman wrote:
> On 05/08/2021 07:49, Anthony William Sloman wrote:
> > On Thursday, August 5, 2021 at 4:38:51 PM UTC+10, Jan Panteltje wrote:
> >> On a sunny day (Wed, 04 Aug 2021 13:09:06 -0700) it happened John Larkin
> >> <jlarkin@highland_atwork_technology.com> wrote in
> >> <pqslggdiehomu3o55...@4ax.com>:
> >>
> >>>
> >>> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers
> >>> -are-taking-seriously/ar-AAMVBlV
> >>>
> >>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> >>
> >> Batteries are always dangerous.
> >
> > Any stored energy is always dangerous. Big batteries are lot less dangerous than large chunks of chemical energy. Bulk storage of ammonium nitrate has produced a couple of mega-ton explosions.
>
> Unusual for you to get your facts so wrong, Bill. A few kilotons, maybe,
> but megatons? Not a chance.

Oops. My bad. I was thinking of Halifax in 1917 which was about three kilotons. A fire onboard the cargo ship SS Grandcamp docked at Texas City in 1947 detonated 2,300 tons of ammonium nitrate, which is in the same ball-park.. A disaster in the Rhineland town of Opac in 1921 seems to have been just as bad. I have seen write-ups talking about a million tons of ammonium nitrate in warehouses going up but that must have been journalistic license.

--
Bill Sloman, Sydney

Re: battery problems

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 by: jlar...@highlandsniptechnology.com - Thu, 5 Aug 2021 14:31 UTC

On Thu, 05 Aug 2021 06:33:21 GMT, Jan Panteltje
<pNaOnStPeAlMtje@yahoo.com> wrote:

>On a sunny day (Wed, 04 Aug 2021 13:09:06 -0700) it happened John Larkin
><jlarkin@highland_atwork_technology.com> wrote in
><pqslggdiehomu3o5540vh3fml2mtc44rqq@4ax.com>:
>
>>
>>https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers
>>-are-taking-seriously/ar-AAMVBlV
>>
>>https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>
>Batteries are always dangerous.
>I have an old mp3 player, runs on one 1,5 V eneloop battery.
>Put it in my pocket, wanted to bring it upstairs,
>something burned in my side, thing was melting!

Same thing happened to me, a 9 volt battery and some coins. Weird
feeling.

--

John Larkin Highland Technology, Inc

The best designs are necessarily accidental.

Re: battery problems

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 by: jlar...@highlandsniptechnology.com - Thu, 5 Aug 2021 14:35 UTC

On Thu, 5 Aug 2021 06:34:01 -0700 (PDT), Fred Bloggs
<bloggs.fredbloggs.fred@gmail.com> wrote:

>On Wednesday, August 4, 2021 at 4:09:16 PM UTC-4, John Larkin wrote:
>> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV
>>
>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>
>
>This is so typical of the lack of intelligence in corporate and government management. Effective chemical fire extinguisher technology has been and continues to be developed to quench large lithium battery fires quickly and efficiency.

But all the reactants are close together, in a reacting heap. It
doesn't need air. The only way to stop the fire is to cool everything
off, or disperse it all.

An explosion might work.

--

John Larkin Highland Technology, Inc

The best designs are necessarily accidental.

Re: battery problems

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 by: jlar...@highlandsniptechnology.com - Thu, 5 Aug 2021 14:37 UTC

On Thu, 5 Aug 2021 09:53:49 -0400, Bob Engelhardt
<BobEngelhardt@comcast.net> wrote:

>On 8/4/2021 4:09 PM, John Larkin wrote:
>>
>>...
>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>>
>>
>
>The article mentions battery capacity in MW. Is that just journalistic
>ignorance or are these batteries really measured in MW, not MWh? I'd
>think that _energy_, not _power_, would be the metric.

"Science reporters" can't tell a watt from a watt-hour, or a mega from
a giga, and tend to neglect timebases.

--

John Larkin Highland Technology, Inc

The best designs are necessarily accidental.

Re: battery problems

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 by: Anthony William Slom - Thu, 5 Aug 2021 14:43 UTC

On Thursday, August 5, 2021 at 11:54:40 PM UTC+10, bobenge...@gmail.com wrote:
> On 8/4/2021 4:09 PM, John Larkin wrote:
> >
> >...
> > https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>
> The article mentions battery capacity in MW. Is that just journalistic
> ignorance or are these batteries really measured in MW, not MWh? I'd
> think that _energy_, not _power_, would be the metric.

The industry can be more interested in how much power they can get in or out, than in the actual energy stored, though that is obviously important too..

The Tesla battery bank in South Australia has made a lot more money out of providing short term frequency correction to compensate for rapidly changing loads than it has out buying up power when the grid is selling it cheaply and selling it back when the grid will pay more for it. Apparently it is split half-and-half between the two jobs

The battery bank may have been sold to South Australia as am energy store, but a frequency correction machine it works a whole lot better than the traditional solutions, and the power it can deliver in the short term is the crucial metric in that job.

Victoria has a lot more industry than South Australia so it may need a lot more power to handle the frequency correction job.

--
Bill Sloman, Sydney

Re: battery problems

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 by: Ed Lee - Thu, 5 Aug 2021 14:55 UTC

On Thursday, August 5, 2021 at 7:35:07 AM UTC-7, jla...@highlandsniptechnology.com wrote:
> On Thu, 5 Aug 2021 06:34:01 -0700 (PDT), Fred Bloggs
> <bloggs.fred...@gmail.com> wrote:
>
> >On Wednesday, August 4, 2021 at 4:09:16 PM UTC-4, John Larkin wrote:
> >> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV
> >>
> >> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> >
> >
> >This is so typical of the lack of intelligence in corporate and government management. Effective chemical fire extinguisher technology has been and continues to be developed to quench large lithium battery fires quickly and efficiency.
> But all the reactants are close together, in a reacting heap. It
> doesn't need air. The only way to stop the fire is to cool everything
> off, or disperse it all.

Problem is packing more energy together and using more plastic than steel. We don't hear too much about Leaf battery fire, because there are lots of steel between cells. It's low range, but i can add external long range storage when needed.

Re: battery problems

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 by: Don - Thu, 5 Aug 2021 14:57 UTC

Bob Engelhardt <BobEngelhardt@comcast.net> wrote:
> On 8/4/2021 4:09 PM, John Larkin wrote:
>>
>>...
>> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
>>
>>
>
> The article mentions battery capacity in MW. Is that just journalistic
> ignorance or are these batteries really measured in MW, not MWh? I'd
> think that _energy_, not _power_, would be the metric.

The industry typically uses MW to specify generating station capacity.
For instance, Burns & McDonnell specify the output of the Rocky Mountain
Cabin Creek pumped storage hydroelectric plant as 300-MW:

https://www.burnsmcd.com/projects/cabin-creek-hydro-electrical-controls-upgrade

Danke,

--
Don, KB7RPU, https://www.qsl.net/kb7rpu
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.

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 by: Lasse Langwadt Chris - Thu, 5 Aug 2021 15:07 UTC

torsdag den 5. august 2021 kl. 16.43.10 UTC+2 skrev bill....@ieee.org:
> On Thursday, August 5, 2021 at 11:54:40 PM UTC+10, bobenge...@gmail.com wrote:
> > On 8/4/2021 4:09 PM, John Larkin wrote:
> > >
> > >...
> > > https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> >
> > The article mentions battery capacity in MW. Is that just journalistic
> > ignorance or are these batteries really measured in MW, not MWh? I'd
> > think that _energy_, not _power_, would be the metric.
> The industry can be more interested in how much power they can get in or out, than in the actual energy stored, though that is obviously important too.
>
> The Tesla battery bank in South Australia has made a lot more money out of providing short term frequency correction to compensate for rapidly changing loads than it has out buying up power when the grid is selling it cheaply and selling it back when the grid will pay more for it. Apparently it is split half-and-half between the two jobs
>
> The battery bank may have been sold to South Australia as am energy store, but a frequency correction machine it works a whole lot better than the traditional solutions, and the power it can deliver in the short term is the crucial metric in that job.
>
> Victoria has a lot more industry than South Australia so it may need a lot more power to handle the frequency correction job.
>

https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three

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Subject: Re: battery problems
From: bloggs.f...@gmail.com (Fred Bloggs)
Injection-Date: Thu, 05 Aug 2021 15:29:29 +0000
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 by: Fred Bloggs - Thu, 5 Aug 2021 15:29 UTC

On Thursday, August 5, 2021 at 10:35:07 AM UTC-4, jla...@highlandsniptechnology.com wrote:
> On Thu, 5 Aug 2021 06:34:01 -0700 (PDT), Fred Bloggs
> <bloggs.fred...@gmail.com> wrote:
>
> >On Wednesday, August 4, 2021 at 4:09:16 PM UTC-4, John Larkin wrote:
> >> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV
> >>
> >> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> >
> >
> >This is so typical of the lack of intelligence in corporate and government management. Effective chemical fire extinguisher technology has been and continues to be developed to quench large lithium battery fires quickly and efficiency.
> But all the reactants are close together, in a reacting heap. It
> doesn't need air. The only way to stop the fire is to cool everything
> off, or disperse it all.

The state of the art is this:
https://cfpa-e.eu/an-extinguishing-agent-specifically-developed-for-lithium-ion-battery-fires/

There's no reason it can't be scaled up for the 3MW jobs.

Bunch of demo videos showing how fast it works.
https://www.avdfire.com/videos/

>
> An explosion might work.
> --
>
> John Larkin Highland Technology, Inc
>
> The best designs are necessarily accidental.

Re: battery problems

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Subject: Re: battery problems
From: edward.m...@gmail.com (Ed Lee)
Injection-Date: Thu, 05 Aug 2021 15:39:56 +0000
Content-Type: text/plain; charset="UTF-8"
 by: Ed Lee - Thu, 5 Aug 2021 15:39 UTC

On Thursday, August 5, 2021 at 8:29:32 AM UTC-7, Fred Bloggs wrote:
> On Thursday, August 5, 2021 at 10:35:07 AM UTC-4, jla...@highlandsniptechnology.com wrote:
> > On Thu, 5 Aug 2021 06:34:01 -0700 (PDT), Fred Bloggs
> > <bloggs.fred...@gmail.com> wrote:
> >
> > >On Wednesday, August 4, 2021 at 4:09:16 PM UTC-4, John Larkin wrote:
> > >> https://www.msn.com/en-us/autos/news/while-they-were-asleep-their-teslas-burned-in-the-garage-it-e2-80-99s-a-risk-many-automakers-are-taking-seriously/ar-AAMVBlV
> > >>
> > >> https://www.theguardian.com/australia-news/2021/aug/02/tesla-big-battery-fire-in-victoria-burns-into-day-three
> > >
> > >
> > >This is so typical of the lack of intelligence in corporate and government management. Effective chemical fire extinguisher technology has been and continues to be developed to quench large lithium battery fires quickly and efficiency.
> > But all the reactants are close together, in a reacting heap. It
> > doesn't need air. The only way to stop the fire is to cool everything
> > off, or disperse it all.
> The state of the art is this:
> https://cfpa-e.eu/an-extinguishing-agent-specifically-developed-for-lithium-ion-battery-fires/

Good for garages.

> There's no reason it can't be scaled up for the 3MW jobs.

No need to save burning batteries. Just let them burn out. Perhaps using smaller containers and space them out apart. There are plenty of spaces around the power plant.

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