If they're claiming charge rates of 1 minute, I think the 40w/kg must be
referring to something else. It would seem it should be order(s) of
magnitude higher.
There's other Al-ion research going on at Oak Ridge. There, Gilbert
Brown claims to have a cell with an energy *density* of 1060wh/kg. I
don't know if his work is related to that at Stanford.
http://web.ornl.gov/adm/partnerships/events/presentations/spark_aluminum_ion_battery.pdf
http://en.wikipedia.org/wiki/Aluminium-ion_battery
Peri
------ Original Message ------
From: "Ben Goren via EV" <[email protected]>
To: "Peter Gabrielsson" <[email protected]>; "Electric Vehicle
Discussion List" <[email protected]>
Sent: 07-Apr-15 3:12:55 PM
Subject: Re: [EVDL] Aluminum battery from Stanford
Indeed...I just checked the abstract and it cites 70 mAh/g. It's an
unfair comparison because of all the extra hardware from the box and
what-not, but a CALB 180 Ah battery weighs 5.6 kg, which works out to
32 mAh/g. That they're in the same order of magnitude tells me this may
well be competitive...if it's not snake oil....
b&
On Apr 7, 2015, at 3:02 PM, Peter Gabrielsson via EV
<[email protected]> wrote:
You may be confusing power and energy
On Apr 7, 2015 2:59 PM, "Bill Dennis via EV" <[email protected]>
wrote:
Their current version of the battery has only 40 watts of
electricity per
kilogram compared to lithium's 100 to 206 W/kg power density--so
you'd need
more of them to get the same power. That might get better as they
improve
the cells, of course.
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