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.
Bill From: Peter Gabrielsson [mailto:peter.gabriels...@gmail.com] Sent: Tuesday, April 7, 2015 4:03 PM To: Bill Dennis; Electric Vehicle Discussion List Subject: Re: [EVDL] Aluminum battery from Stanford You may be confusing power and energy On Apr 7, 2015 2:59 PM, "Bill Dennis via EV" <ev@lists.evdl.org> 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. Bill -----Original Message----- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Ben Goren via EV Sent: Tuesday, April 7, 2015 2:11 PM To: Electric Vehicle Discussion List Subject: [EVDL] Aluminum battery from Stanford offers safe alternative to conventional batteries Does anybody know any more about this research? http://news.stanford.edu/news/2015/march/aluminum-ion-battery-033115.html Aluminum anode; graphite cathode. Unspecified salt for the electrolyte. It's only about two volts. The rest of the specs are vague...nothing at all about capacity. They claim super-fast charging times without indicating how much energy the batteries actually take on. They claim several thousand charge cycles. No mention of energy density per mass. The prototype is bendable, in what looks for all the world like a mylar ziploc bag. They show the battery being drilled into with minimal ill effect. I find it intriguing to consider for an electric vehicle...because a super-fast charging time, if real, would similarly imply a super-fast discharge rate. It gives the appearance of being technology within the reach of an hobbyist to manufacture. Form factor is obviously quite literally flexible. In other words...I can almost imagine building a battery like this, myself, at home, to put into a car conversion. Or, if it's too heavy for vehicles, then to stick in the closet to pair with the solar PV array. Any experts out there have any good water to throw over me? b& _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150407/fe9e8043/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
