I have Tesla Model S cells pulled from a late 2014 car with only 3700 miles. The cells are Grade A Made in Japan by Panasonic and were custom engineered by Tesla and Panasonic; no more buying cells on the grey market BS for quality cells!!!
Grade A cells at cheaper then grey market prices!
The car was also a cold weather car, and I don't believe the cells have ever been fully charged (more on that later) nor have they been fully discharged. The modules were pulled out of the pack with an average cell voltage of ~3.31V, which is close to, but not completely dead. It is also an ideal storage voltage for long term storage (http://dlnmh9ip6v2uc.cloudfront.net/dat ... 20MSDS.pdf
As as result, the cells are in LIKE NEW condition!!
Quote from Tesla CIO:
We use a nickel-cobalt-aluminum (LiNiCoAlO2) lithium-ion chemistry for our battery cathode material. We don’t use a titanate, which has about half the energy density but is generally good at high charge rates. Some start-ups are using metal oxides; we fall broadly in that category. At this point we really have heavily customized that cell. We’ve totally custom-engineered that cell working jointly with Panasonic to create. It’s an automotive cell, tested to automotive standards. It doesn't go into laptops anywhere.
These cells were designed for a 12-20 year life and should be good for ~1200-2000+ cycles, when used per design parameters. They are also designed for a full 100% DOD unlike most automotive batteries. (ref Tesla supercharge video showing 4.20V 50mA cut charge
Here's a quick table I put together for specs and as a comparison for common ebike batteries:
(please PM me if you see mistakes or missing info)
If treated properly, these cells should have exceptional life [http://ecst.ecsdl.org/content/41/41/65. ... t;41/41/65
Here is some data from Norwegian Model S owners showing great durability:
(95% after 240 full DOD cycles! And capacity loss slows significantly after 3% loss.)
I can offer the cells as follows:
**Wrapped, like normal OEM cells, with a protective washer over the positive terminal
**Welded packs, to your geometrical specification
• Fully engineered to handle peak current 8A sustained or 15A peak per cell, unlike most welded packs!! (~2-3 weeks)[/1]
• Will include one - two thermocouples adhered to a cell for temperature monitoring.
• I will offer two designs:
• Designs use our custom holders that offer 10% better energy density then the black Chinese holders.
Here is the pricing. Shipping is flat rate in the 48 states to simplify things per the table. Please don't ask me for a "shipping quote," unless you are international!
If anyone in Europe or the Netherlands is interested in a group buy, I can arrange to have a very large qty of cells shipped for ~$500-$1000. I will use a consolidator and you would need to pick up at port.
I have an 8-channel, 4-wire, 10A capable, programmable battery cycle tester coming from china. Anyone with an order larger then $500 will get to specify any custom cycle test regimen and I will run new cell for at least 100 cycles, within reason. You can then keep the data, or share publicly if you desire. This way anyone who uses these cells can truly know what they are capable of...
-These cells are officially capable of Supercharging, that's 50% charge in ~20 minutes and ~80% charge in 1 hour. More on this later...
I can accept:
-Cash (Houston, TX area)
-MO/Personal Check/Cashiers Check (you can snail mail me; this offers you better protection then PayPal with no fees; DYODD)