WiseGuy wrote:I'd like to see what the "true capcity" discharge curve looks like, if the one that's published is a derated one. To me it looks exactly the same as all other LMO cell curves (which are not derated).
Let's close this disussion and wait for someone to actually do a 1/3C discharge of an actual cell, starting at 4.2V per cell, and end at 2.5V to prove the actual installed capacity.
The 1/3C chart can be found above and on AESC's site, also linked above.
You pointed out correctly earlier that there's little energy at either end of the curve. So if one charges to 4.0V, 4.2, or 4.3, there won't be a significant difference in the curve - the only change will be in the initial voltage drop from 4.3V to the discharge slope. But there will be a significant loss of cycle life with the increased charge voltage.
More here in the 'wayback machine'.
Early pack capacity guestimateshttp://www.mynissanleaf.com/viewtopic.php?p=12774
Freedom of Information Act request - EPA docs from Nissan (includes capacity info)http://www.mynissanleaf.com/viewtopic.php?f=4&t=2433
Cell capacity per Nissan diagnostics computerhttp://www.mynissanleaf.com/viewtopic.php?f=4&t=2823
Battery info from service manualhttp://www.mynissanleaf.com/viewtopic.php?f=9&t=2085