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stopcrazypp
Well-Known Member
Here's a 2006 data sheet of a Sanyo UR18650F (likely close to what the Roadster used). Last page has a 500 cycle degradation graph. The link is not directly from manufacturer, but the datasheet looks legit.
https://www.neuhold-elektronik.at/datenblatt/N5644.pdf
According to the material datasheet here, the UR18650F series is a pure lithium cobalt cell (more modern cells tend to have a mix of lithium manganese or some kind of nickel based mix like NCA and NMC):
https://panasonic.ca/PCS/OperatingInstructions/MSDS_IB-BC-003-02.pdf
Edit, I dug a bit and found a newer 2012 datasheet for the same model number (although maybe updated a bit) direct from the manufacturer:
http://na.industrial.panasonic.com/sites/default/pidsa/files/ur18650f.pdf
https://www.neuhold-elektronik.at/datenblatt/N5644.pdf
According to the material datasheet here, the UR18650F series is a pure lithium cobalt cell (more modern cells tend to have a mix of lithium manganese or some kind of nickel based mix like NCA and NMC):
https://panasonic.ca/PCS/OperatingInstructions/MSDS_IB-BC-003-02.pdf
Edit, I dug a bit and found a newer 2012 datasheet for the same model number (although maybe updated a bit) direct from the manufacturer:
http://na.industrial.panasonic.com/sites/default/pidsa/files/ur18650f.pdf
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