Why aren't battery power vehicles cheaper?

May 18th, 2021 at 9:01:38 AM permalink
Pacomartin
Member since: Oct 24, 2012
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Quote: rxwine
This is from a Popular Mechanics article this week. Not sure if the Harvard researchers have the actual prototype. It can last 10 times longer than lithium ion batteries and fully charge in 10 minutes.
Lithium metal battery. Previously, they hadn’t kept LM batteries from exploding in previous incarnations.




The Bolloré Bluecar is a small Italian four-seat, three-door electric car . The car has a 30kWh lithium metal polymer (LMP) battery, coupled to a supercapacitor, that provides an electric range of 160 mi in urban use, and a maximum speed of 75 mph.

Quote: New lithium-metal battery electrolyte can lengthen range of EVs July 16, 2020
The higher the energy density of your battery, the further your EV can travel. But the standard lithium-ion batteries used in EVs are reaching their theoretical upper limit for energy density. A new design is needed to break through that ceiling and make it commercially viable. Mark Shwartz at Stanford University describes their research into lithium-metal batteries, which should double the energy per unit weight. One big challenge was to create a stable electrolyte for the new battery. They did this using a novel fluorine compound that’s easy and cheap to make. The stability tests proved dramatic: the fluorine electrolyte allowed the battery to last for 420 cycles of charge and discharge – normally it’s about 30 cycles for lithium-metal. These are still prototypes and further R&D is needed, but battery performance is crucial to the future of e-mobility. The research was part-funded by the U.S. DOE’s research consortium, Battery500, which is aiming to lift lithium-metal battery performance from 180 to 500 watt-hours per kilogram. Lithium-ion batteries typically deliver 220 Wh/kg.

https://energypost.eu/new-lithium-metal-battery-electrolyte-can-lengthen-range-of-evs/
May 18th, 2021 at 9:45:07 AM permalink
rxwine
Member since: Oct 24, 2012
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Quote: Pacomartin
They did this using a novel fluorine compound that’s easy and cheap to make. The stability tests proved dramatic: the fluorine electrolyte allowed the battery to last for 420 cycles of charge and discharge – normally it’s about 30 cycles for lithium-metal.


If I remember correctly the Harvard cycle range is said to be estimated at 10,000!
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May 18th, 2021 at 10:57:59 AM permalink
Pacomartin
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Quote: rxwine
If I remember correctly the Harvard cycle range is said to be estimated at 10,000!


Quote: Harvard Crimson
A major problem with lithium metal anode batteries, however, is their tendency to cause internal short circuits due to lithium forming between cathode and anode. Li said his project may offer a solution. “It was unsolved for thirty years, but we've demonstrated that a solid-state battery may enable lithium metal anodes,” Li said. He said his group did not observe short circuits even after testing 10,000 charge-discharge cycles in their lab-scale battery.


I don't think that means they got 10,000 charge-discharge cycles out of a single battery.

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Still, Elon Tesla has managed to sell 100,000 Lithium-ion home use Powerwalls for $6500 apiece before installations (251.3 lb dimensions 45.3 in × 29.6 in × 5.75 in).

The warranty for a Powerwall is only for 37.8 MWh of aggregate throughput. In Pennsylvania we pay $4,098 for 37.8 mWh of electricity. The Powerwall literally makes no economic sense. as it costs more to fill and empty without even consideration of where you get the power in the first place. Forbes conclusion was "...Tesla's Powerwall Is Just Another Toy For Rich Green People."

Possibly in Hawaii where 37.8 mWh costs $10,856 is there a remote possibility that the Powerwall makes sense.

Maybe in the future a Lithium-metal home battery will make some sense if they can get the warranty amount to something reasonable for a similar capital outlay.
May 19th, 2021 at 10:00:46 AM permalink
terapined
Member since: Aug 6, 2014
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F150 Lightning unveiled tonight
I'm a big F150 fan
Pretty excited about this
This could be a game changer
Going after the pickup customer that generally is not interested in green
But
Are interested in key specs such as how much you can tow and how far. With good numbers , may attract that lucrative pickup crowd.
Sometimes we live no particular way but our own - Grateful Dead "Eyes of the World"
May 19th, 2021 at 1:30:08 PM permalink
Pacomartin
Member since: Oct 24, 2012
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Quote: terapined
Are interested in key specs such as how much you can tow and how far. With good numbers , may attract that lucrative pickup crowd.


ICE engines
2021 Ford Mustang/MSRP From $27,155 and starts at 310 hp.
2021 Ford F-150/MSRP From $28,940 and starts at 255 hp.


The lowest level electric Mustang has an MSRP Starting At $ 42,895 (As low as $35,395 after Federal Tax Credit) 266 HP (RWD/eAWD)
Standard Range (68kWh battery )
230 miles (RWD)
211 miles (eAWD) - EPA-Est.
Performance 0-60 mph
5.8 seconds (RWD)
5.2 seconds (eAWD)
Ford is probably going to use the same motor in the F-150 lightning, but will offer higher performance motors as well.
May 19th, 2021 at 6:26:20 PM permalink
DRich
Member since: Oct 24, 2012
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Quote: Pacomartin

Ford is probably going to use the same motor in the F-150 lightning, but will offer higher performance motors as well.


I was surprised to read today that the new Ford Bronco comes standard with a three cylinder engine.
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May 19th, 2021 at 9:42:57 PM permalink
Pacomartin
Member since: Oct 24, 2012
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Quote: DRich
I was surprised to read today that the new Ford Bronco comes standard with a three cylinder engine.


They had 3 cylinder engines over three decades ago in an effort to build very fuel efficient engines. The manual Geo Metro 32 years earlier had roughly same fuel economy as a present day automatic Toyota Prius but with less performance.
MPG:47 1989 Geo Metro 1.0 L, 3 cyl, Manual 5-spd Combined 2.1 gal/100mi Acceleration 0 - 60 mph 19 sec | Max 87 mph
MPG:34 1989 Geo Metro LSI 1.0 L, 3 cyl, Automatic 3-spd Combined 2.9 gal/100mi Acceleration 0 - 60 mph 13.5 sec
MPG:41 2001 Toyota Prius 1.5 L, 4 cyl, Automatic VGR Combined 2.4 gal/100mi Acceleration 0 - 60 mph 13 sec | Max 99 mph
MPG:52 2021 Toyota Prius 1.8 L, 4 cyl, Automatic VGR Combined 1.9 gal/100mi Acceleration 0 - 60 mph 11 sec | Max 112 mph


A JOKE NO MORE: WHY THE THREE-CYLINDER ENGINE IS THE NEXT BIG (LITTLE) THING IN PERFORMANCE
DECEMBER 23, 2020 Story By Mike Garrett


This latest crop led by Ford are turbo three cylinder engines which have enough horsepower.

2021 Ford Bronco Sport 4WD Tank Size 16.0 gallons
1.5 L, 3 cyl, Automatic 8-spd, Turbo Combined MPG:26 MPG 3.8 gal/100mi 416 miles
2.0 L, 4 cyl, Automatic (S8), Turbo Combined MPG:23 MPG 4.3 gal/100mi 368 miles
May 20th, 2021 at 2:40:40 AM permalink
AZDuffman
Member since: Oct 24, 2012
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Quote: Pacomartin

They had 3 cylinder engines over three decades ago in an effort to build very fuel efficient engines. The manual Geo Metro 32 years earlier had roughly same fuel economy as a present day automatic Toyota Prius but with less performance.
MPG:47 1989 Geo Metro 1.0 L, 3 cyl, Manual 5-spd Combined 2.1 gal/100mi Acceleration 0 - 60 mph 19 sec | Max 87 mph
MPG:34 1989 Geo Metro LSI 1.0 L, 3 cyl, Automatic 3-spd Combined 2.9 gal/100mi Acceleration 0 - 60 mph 13.5 sec
MPG:41 2001 Toyota Prius 1.5 L, 4 cyl, Automatic VGR Combined 2.4 gal/100mi Acceleration 0 - 60 mph 13 sec | Max 99 mph
MPG:52 2021 Toyota Prius 1.8 L, 4 cyl, Automatic VGR Combined 1.9 gal/100mi Acceleration 0 - 60 mph 11 sec | Max 112 mph


A JOKE NO MORE: WHY THE THREE-CYLINDER ENGINE IS THE NEXT BIG (LITTLE) THING IN PERFORMANCE
DECEMBER 23, 2020 Story By Mike Garrett


This latest crop led by Ford are turbo three cylinder engines which have enough horsepower.

2021 Ford Bronco Sport 4WD Tank Size 16.0 gallons
1.5 L, 3 cyl, Automatic 8-spd, Turbo Combined MPG:26 MPG 3.8 gal/100mi 416 miles
2.0 L, 4 cyl, Automatic (S8), Turbo Combined MPG:23 MPG 4.3 gal/100mi 368 miles



I have a few times had arguments with people who insisted the Yugo had a 3 cylinder. It had a 1.0 or 1.1 liter four, I forget the exact displacement. The Chevy Sprint was the first 3 I had ever heard of.

I think the issue is the odd number of cylinders is harder to balance. Question would be is it effectively a V-6 cut in half or a L6 cut in half? A V-6 is hard to balance, an L6 is the smoothest engine you can get. So it must be that they finally have figured that the weight, parts, and space savings are worth it for the hassle of getting it balanced.
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May 20th, 2021 at 5:39:16 AM permalink
Pacomartin
Member since: Oct 24, 2012
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Quote: AZDuffman
...they finally have figured that the weight, parts, and space savings are worth it for the hassle of getting it balanced.


Ford's 1.0-liter EcoBoost 3-cylinder engine first available in 2012 in the Ford Focus and C-Max, is the smallest the company has ever built for use in a car, but packs 100+ horsepower of muscle. Ford says the output of the little engine is equivalent to what many 1.6-liter 4-bangers are getting now. Except with much better mileage numbers.

May 20th, 2021 at 6:40:52 AM permalink
AZDuffman
Member since: Oct 24, 2012
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I saw that thing on a table at an auto show. I thought it was a model at first.
The President is a fink.