in 2018, so far Tesla has used 7,103,326 Kilowatt hours of batteries, 77% of
all the batteries used in EV's (less China) of the 9,279,755 total
It doesn't matter whether you argue prismatic or pouch or 18650 or 2170. Tesla
is outselling everyone else
On Sunday, September 9, 2018, 8:45:20 PM EDT, ROBERT via EV
<[email protected]> wrote:
The problem with Tesla's batteries is not small vs large but Tesla has put all
their eggs into one type of battery. The other automotive companies are
staying out of the battery business so that they can buy the best batteries
available and not spend money on development. Vertical business development is
not always the best model. At present, do what you do best and assemble a
final product and buy from numerous suppliers is the current business model for
the big automotive companies.
________________________________
From: EV <[email protected]> on behalf of Jan Steinman via EV
<[email protected]>
Sent: Sunday, September 9, 2018 10:02 AM
To: [email protected]
Cc: Jan Steinman
Subject: Re: [EVDL] Large Format Cells vs. Small Format Cells for EVs
> From: Jukka J?rvinen <[email protected]>
>
> The main question is when will the problems be there? After 200.000 or
> 500.000 miles?... we have just now
> mastered the solid state electrolyte and synthetic Graphene production. I
> see now 500Wh/kg, >15 year lifetime
I see someone arguing both sides of a fallacious argument.
How can you criticize one manufacturer for unknown future problems who uses
known technology, while lauding unknown technology for a long lifetime that
none of it has even passed through?
We have all sorts of empirical evidence with small cells. MTBF behaviour is
well characterized. But there is absolutely NO empirical evidence for "15 year
lifetime" of "solid state electrolyte and synthetic Graphene" cells.
Personally, I prefer nickel-iron cells. But I'm an outlier. :-)
Jan
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