Lithium-Ion batteries are hitting physical limits

afadeev · 03-22-2017, 10:51 AM

... but not in BMWs.

http://www.dw.com/en/batteries-are-h...its/a-19449790

For references, i3's batteries are still at relatively low density, at 95 W.hrs/kg vs. 140 - 210 for most Li-Ion batteries, or 260 for 'lithium polymer' battery.

More info on batteries here:
https://cleantechnica.com/2016/07/16...teries-better/

a

Kiwi · 03-23-2017, 02:32 AM

Solid state batteries are next to come.

Efthreeoh · 03-25-2017, 06:14 AM

Too bad BMW just can't get any range out of it.

http://bmwi.bimmerpost.com/forums/sh...7#post21404317

Fast400 · 04-03-2017, 04:30 AM

Interesting articles! I'm surprised that the focus is mostly on increasing capacity, and not optimizing rapid charging. I think a 150mile range would be widely accepted if the infrastructure would have a well placed grid of 'Super' Fast charging stations( ie 120kw/h +). If batteries could take higher loads, then charging would be a 10 minute pee break, which I think most people would accept.
The most frequent comment I get from Naysayers is "Well you have to hang out somewhere for an hour before driving on, that sucks"
Doesn't bother me, but it's a reason not more EV's are out there. The perfect range and fast charge would have more people in EV's.

03-22-2017, 10:51 AM	#1
afadeev Colonel 1163 Rep 2,561 Posts Drives: F80 M3 Join Date: Jan 2012 Location: NYC iTrader: (0)	Lithium-Ion batteries are hitting physical limits ... but not in BMWs. http://www.dw.com/en/batteries-are-h...its/a-19449790 For references, i3's batteries are still at relatively low density, at 95 W.hrs/kg vs. 140 - 210 for most Li-Ion batteries, or 260 for 'lithium polymer' battery. More info on batteries here: https://cleantechnica.com/2016/07/16...teries-better/ a __________________ '19 TM3P (BK/BK) '15 F80 M3 (SO/SS) ex-'17 I01 i3-BEV (PB/DD), ex-'15 I01 i3-REX, ex-E90, E46, E36's, E30's
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03-23-2017, 02:32 AM	#2
Kiwi Captain 145 Rep 917 Posts Drives: 2015 BMW M Sports Convertible Join Date: May 2005 Location: Auckland New Zealand iTrader: (0)	Solid state batteries are next to come. __________________ 2015 220i M Sport convertible. 2016 225xe M Sport.
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03-25-2017, 06:14 AM	#3
Efthreeoh General 17281 Rep 18,722 Posts Drives: The E90 + Z4 Coupe & Z3 R'ster Join Date: May 2012 Location: Virginia iTrader: (0)	Too bad BMW just can't get any range out of it. http://bmwi.bimmerpost.com/forums/sh...7#post21404317 __________________ A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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04-03-2017, 04:30 AM	#4
Fast400 Major 682 Rep 1,123 Posts Drives: iX M60 Join Date: May 2014 Location: ... iTrader: (0) Garage List 2014 BMW [0.00]	Interesting articles! I'm surprised that the focus is mostly on increasing capacity, and not optimizing rapid charging. I think a 150mile range would be widely accepted if the infrastructure would have a well placed grid of 'Super' Fast charging stations( ie 120kw/h +). If batteries could take higher loads, then charging would be a 10 minute pee break, which I think most people would accept. The most frequent comment I get from Naysayers is "Well you have to hang out somewhere for an hour before driving on, that sucks" Doesn't bother me, but it's a reason not more EV's are out there. The perfect range and fast charge would have more people in EV's.
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