I used 75 miles as the range because that is what Consumers Report is
currently reporting and I'd rather use an "independent" testing number
especially if reported range drops in winter.
>>Rumors are flying about a 30kWh pack for the 2016 LEAF. If true, that
would likely get the range up over 100 miles EPA. Beyond that, public
comments from Nissan execs point to an upcoming 150 to 200+ mile LEAF
refresh for 2017. <<
Seeing the reported ranges increase from the pre-announcements is very
encouraging.
>>IIRC, Tesla's batteries are already twice as energy dense as the
current model LEAF batteries. <<
When I divide the Model S pack of 85 kwhr by the an estimated weight of
roughly 550 kg for the total pack, I get a figure of 154 whr/kg.
Granted that this weight includes the pack structure and wiring etc. and
is an estimate from an online forum. If I add about a 1/3 for this
weight, the energy density about doubles over a comparative LiFePO6 at
around 90 whr/kg. When seeing the Jeff Dahn video of doubling to
tripling of energy densities, it puts the above into doubt.
On 5/27/2015 12:36 PM, Jamie K via EV wrote:
On 5/27/15 10:03 AM, Peter Eckhoff via EV wrote:
It's getting there. Right **now** the Leaf has a range of 75 miles.
Actually the current model LEAF is rated at 84 miles EPA range. The
old rating was based on an average between the at-the-time recommended
80% charge and a 100% charge. Along with changes in battery chemistry
Nissan removed the option to automatically charge to 80%.
Now for a big question, if the 2017 Leaf pack stays the same volume wise
and the range goes from 75 to say 225 miles, what would happen if that
pack chemistry were transferred in kind to the Tesla Model S? Ans: ~800
miles on a charge EV??? Suddenly, Gulf Coast beaches are in range as
well as Cape Cod beaches from a central North Carolina starting point.
Is this just a pleasant thought nearing reality or am I just wishful
thinking??? Let's see him write an article about that.
IIRC, Tesla's batteries are already twice as energy dense as the
current model LEAF batteries.
Would a $6K 2015 Leaf replacement pack still cost $6K for the 2017 model
Leaf? If people realize this, would current EV sales begin to drop in
anticipation? If I buy a 2015 Leaf today, would I be able to trade up
to a 2017 chemistry pack or pack?
We await word from Nissan on all of this. Longer range replacement
packs for existing LEAFs would be a great option.
Rumors are flying about a 30kWh pack for the 2016 LEAF. If true, that
would likely get the range up over 100 miles EPA. Beyond that, public
comments from Nissan execs point to an upcoming 150 to 200+ mile LEAF
refresh for 2017.
Cheers,
-Jamie
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