Thanks Tomw,
That was a nice video. I didn't hear any contradictions. I learned
somethings about cell construction I did not know.
Dahn was lecturing to explain HPC testing, and Whitacre was lecturing to
help people who assemble and manage packs, so they have a little different
slant.
Regardi
Side reaction rates increase with temperature, but that is only part of the
story. The rates are even more dependent on cell voltage, and Dahn mentions
this:
*• The biggest factor is time spent at highest voltage.
o Longer is worse
o Most of the parasitic reactions happen above
Why is it you think I am making this up? I have no reason to do anything,
but report what has been found using the new testing. I just read the
papers, talked to the people, and watched that video enough to follow it.
"Automotive product validation is pretty rigorous."
Apparently, they did it w
On Wednesday, April 1, 2015 12:42 PM, Michael Ross
wrote:
Jeff,
I am not sure why performance at ambient temperatures should make anyone feel
confident about a cell. LFP for instance, starts to have serious difficulties
at 104°F if it is fully charged. That is certainly ambien
t.ecsdl.org/content/3/36/3.full.pdf
>
>
>
>
> From: Michael Ross via EV
> To: Jeff Major ; Electric Vehicle Discussion List <
> ev@lists.evdl.org>
> Sent: Wednesday, April 1, 2015 11:42 AM
> Subject: Re: [EVDL] ENERDEL Battery Experiences
>
>
Where do you get your information.
LiFePO4 if good even at 140F.
http://ecst.ecsdl.org/content/3/36/3.full.pdf
From: Michael Ross via EV
To: Jeff Major ; Electric Vehicle Discussion List
Sent: Wednesday, April 1, 2015 11:42 AM
Subject: Re: [EVDL] ENERDEL
Jeff,
I am not sure why performance at ambient temperatures should make anyone
feel confident about a cell. LFP for instance, starts to have serious
difficulties at 104°F if it is fully charged. That is certainly ambient
here in North Carolina; and that is free air, not boxed up with significant
I doubt that EnerDel and its customers have overlooked anything as basic as
performance and life at ambient temperatures. It appears to me that Hoegberg is
comparing to some float stand-by application and then misinterpreting the
presented data. But whatever. They have millions of cells in the
results?
Mike
On Wed, Apr 1, 2015 at 4:06 AM, Hoegberg via EV wrote:
>
>
>
> > Date: Mon, 30 Mar 2015 14:00:00 +
> > To: ev@lists.evdl.org
> > Subject: Re: [EVDL] ENERDEL Battery Experiences
> > From: ev@lists.evdl.org
> Date: Mon, 30 Mar 2015 14:00:00 +
> To: ev@lists.evdl.org
> Subject: Re: [EVDL] ENERDEL Battery Experiences
> From: ev@lists.evdl.org
>
> Hello Michael,
> Some companies do not pay a lot of attention to their website and rely
better. This is where the industry need to
> go.
> >>
> >> Mike
> >>
> >>
> >> On Sun, Mar 29, 2015 at 10:31 PM, Jeff Major via EV
> >> wrote:
> >>
> >> > Hello EVDL,
> >> >
> >> > EnerDel makes a great ce
about every day. I can write more but want to see if this message
>> makes to
>> > thru to the board.
>> > Regards,
>> > Jeff Major
>> >
>> >
>> >
>> > On Sunday, March 29, 2015 9:09 PM, HARSHA GODAVARI via EV <
>> > ev
e makes
> to
> > thru to the board.
> > Regards,
> > Jeff Major
> >
> >
> >
> > On Sunday, March 29, 2015 9:09 PM, HARSHA GODAVARI via EV <
> > ev@lists.evdl.org> wrote:
> >
> >
> > Their contact info shows the
to the board.
> Regards,
> Jeff Major
>
>
>
> On Sunday, March 29, 2015 9:09 PM, HARSHA GODAVARI via EV <
> ev@lists.evdl.org> wrote:
>
>
> Their contact info shows their location as,"Greenfield .Ind" May be
> someone in the vicinity can pay them
ot; , "Electric Vehicle Discussion List"
Sent: Monday, March 30, 2015 12:09:01 AM
Subject: Re: [EVDL] ENERDEL Battery Experiences
Mike,
Caveat emptor.
A US company, but I can't see any information on the website that tells me
they have a good cell, modules or packs. It is rather uni
electrolyte packages, test them with 1 hour cycles and see no
>>> difference, but with HPC and long dwell times you could
>>> tell which combination is better. This is where the industry need to go.
>>> Mike
>>>
>>> On Sun, Mar 29, 2015 at 10:31 PM, Jeff Major via EV
&
n, Mar 29, 2015 at 10:31 PM, Jeff Major via EV
>> wrote:
>>
>> Hello EVDL,
>>
>> EnerDel makes a great cell and battery here in the USA. I have been to
>> their factory in the Indianapolis area many times. I use the product just
>> about every day. I can writ
V <
> ev@lists.evdl.org> wrote:
>
>
> Their contact info shows their location as,"Greenfield .Ind" May be
> someone in the vicinity can pay them a visit.
>
> regards
> hg
>
> - Original Message -
>
> From: "Michael Ross via EV"
visit.
regards
hg
- Original Message -
From: "Michael Ross via EV"
To: "Mike" , "Electric Vehicle Discussion List"
Sent: Monday, March 30, 2015 12:09:01 AM
Subject: Re: [EVDL] ENERDEL Battery Experiences
Mike,
Caveat emptor.
A US company, but I can't se
52F%252Fpuregreencars.com%252Ffiles%252FSolar-taxi.JPG%3Bhttp%253A%252F%252Fpuregreencars.com%252FGreen-Culture%252FAround-the-World-with-Solar-Taxi.html%3B540%3B319
On Sun, 3/29/15, Michael Ross via EV wrote:
Subject: Re: [EVDL] ENERDEL Bat
t; someone in the vicinity can pay them a visit.
>
> regards
> hg
>
> - Original Message -
>
> From: "Michael Ross via EV"
> To: "Mike" , "Electric Vehicle Discussion List" <
> ev@lists.evdl.org>
> Sent: Monday, March 30, 2015 12:09:01 AM
I have a 24kWh Enerdel pack in my Think City. I have 19k miles on it and
no noticeable loss of battery capacity (will be 3 years in Oct 2015). I
also notice they have very good cold weather performance. I have some PDF
presentations they made a few years ago about their battery technology
which
ehicle Discussion List"
Sent: 29-Mar-15 7:31:42 PM
Subject: Re: [EVDL] ENERDEL Battery Experiences
Hello EVDL,
EnerDel makes a great cell and battery here in the USA. I have been to
their factory in the Indianapolis area many times. I use the product
just about every day. I can write m
egards
hg
- Original Message -
From: "Michael Ross via EV"
To: "Mike" , "Electric Vehicle Discussion List"
Sent: Monday, March 30, 2015 12:09:01 AM
Subject: Re: [EVDL] ENERDEL Battery Experiences
Mike,
Caveat emptor.
A US company, but I can't
Bill, is there a summary article on-line? Could you provide a link?
Thanks,
-Chris
On 3/29/2015 6:02 PM, Bill Dube via EV wrote:
All Li-ion batteries steadily decline in capacity. They all age
gracefully. Not a unique feature of any particular brand.
Having said that, there are vast difference
ot;Electric Vehicle Discussion List"
Sent: Monday, March 30, 2015 12:09:01 AM
Subject: Re: [EVDL] ENERDEL Battery Experiences
Mike,
Caveat emptor.
A US company, but I can't see any information on the website that tells me
they have a good cell, modules or packs. It is rather uninf
March 30, 2015 12:09:01 AM
Subject: Re: [EVDL] ENERDEL Battery Experiences
Mike,
Caveat emptor.
A US company, but I can't see any information on the website that tells me
they have a good cell, modules or packs. It is rather uninformative. I
can't tell if they are more than an outle
Mike,
Caveat emptor.
A US company, but I can't see any information on the website that tells me
they have a good cell, modules or packs. It is rather uninformative. I
can't tell if they are more than an outlet for a non-US company.
To me the most important thing to know is what they cells are
All Li-ion batteries steadily decline in capacity. They all age
gracefully. Not a unique feature of any particular brand.
Having said that, there are vast differences in cycle life between
brands. Some only last 500 cycles, while others last well over 10,000
cycles. There are also large differ
I am in the process of deciding what type of Lithium batteries to use. Been
through all the retoric on CALB, etc. Read the used Nissan battery threads and
am leaning toward ENERDEL batteries for two reasons,, (1) They are a US company
and (2) the discharge curve seems to be a steady declining r
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