Phximiev
Posts: 1221
Joined: Thu Jan 15, 2015 7:25 pm
Location: Phoenix

Re: Global Warming's Terrifying New Math

Tue May 22, 2018 11:40 am

Phximiev wrote:
JoeS wrote:Looks like this thread has evolved into solutions rather than scaring us to death...
Phximiev wrote:300 mile iMiev with Store-dot battery?
https://www.store-dot.com/business-units
https://youtu.be/s5yuzKR0LAU
Clueless marketeers, using the soundtrack of an ICE vehicle as the BEV starts and drives off at the 00:40sec mark. Doesn't every BEV driver now just cringe when hearing an ICE car start?

They're addressing their FlashBattery being able to quickly absorb a high power jolt, but the allied issue with EV rapid charging is having a very-high energy source available and then being able to dump it quickly into the vehicle without blowing up the source or connection between the two. Last night I spent quite a few hours freezing way up in the remote Sierras at an RV campground resetting their (expletive deleted) 50A circuit breaker which was popping open as I was trying to charge Tesia (my Tesla) … I had to dial the current waaay down… 32A finally held. :twisted: These FlashBattery people are talking transferring energy at thousands of amps.

Rapid charging is only needed when doing an extended and continuous trip (like Rick on Route 66), whereas ordinary L1 and L2 normally meets most people's needs; that said, this would be really useful technology for the commercial industry, especially long-distance truckers.

As far as this FlashBattery is concerned, to paraphrase Elon, "bring me a fully-developed production-ready battery to test, and then we'll talk".


More on StoreDot: http://insideevs.com/storedot-battery-c ... 5-minutes/


Oil companies involved with StoreDot: https://electrek.co/2018/05/22/ultra-fa ... -giant-bp/

Just lovely...
2012 iMIEV ES
2014 Chevy Volt

PV1
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Re: Global Warming's Terrifying New Math

Wed May 23, 2018 10:17 am

To meet these claims, new charge connectors would need to be developed. I calculated that a true near-300 mile range, highway driving, would require at least a 75 kWh battery in a Chevy Bolt. To dump 75 kWh in 5 minutes, a 900 kW charge rate is required, which is 2,400 amps at 375 volts. Current 50 kW quick chargers push a theoretical max of 140 amps, although I've never seen more than 125 amps.

10 minute charge is way more likely, only requiring 1,200 amps or 450 kW. I'd hate to lug that cable.
"Bear" - 2012 Diamond White Pearl ES with QC - 2/21/2013
"Koorz" - 2012 Cool Silver Metallic ES with QC - 1/5/2015
"Photon" - 2017 Bolt EV LT in Orange with QC - 7/31/2017

Solar-powered since 10/10/2013

JoeS
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Re: Global Warming's Terrifying New Math

Wed May 23, 2018 10:51 am

PV1 wrote:10 minute charge is way more likely, only requiring 1,200 amps or 450 kW. I'd hate to lug that cable.
Is that really needed, as that's still faster than the time it takes to go to the bathroom and then grab a cup of coffee? For example, starting from a low SoC in the Tesla M3, one can presently pump in around 100 miles' worth of charge in ten minutes. Edit: I fixed this number as I had previously misread a graph posted on TMC.

Anyone have any scary math examples to add to this thread, as we're focusing more on the solutions rather than the problem itself?
EVs: 2 Wht/Blu SE Prem., '13 Tesla MS85, 3 156v CorbinSparrows (2 Li-ion), 24v EcoScoot(LiFePO4)
EV Conv: 156v '86 Ram PU, 144v '65 Saab 96
Hybrids: 48v1kW bike
ICE: '88 Isuzu Trooper. Mothballed: '67 Saab (orig.owner), '76 MBZ L206D RHD RV

jray3
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Location: Tacoma area, WA
Contact: Website

Re: Global Warming's Terrifying New Math

Thu May 24, 2018 4:22 pm

The connectors and cables aren't quite so scary as voltage rises to keep the amps down. Here's a 440V 500A (220 kW) marine umbilical.
http://generalmarineproductsinc.com/ProductSheet.pdf

I have a friend working on a quite novel DC connector for buses and ships.

No wonder Porsche is pursuing 800V EV architecture...
2012 i-SE "MR BEAN" 110,300 miles
2016 KIA SOUL EV, 90 kW, 27 kWh, 34k miles
2000 Mazda Miata EV, 78 kW, 17 kWh
1983 Grumman Kurbwatt EV,170 kW, 32 kWh
1983 Mazda RX-7 EV 43 kW 10 kWh
1971 "Karmann Eclectric" EV 240 kW 19 kWh

Phximiev
Posts: 1221
Joined: Thu Jan 15, 2015 7:25 pm
Location: Phoenix

Re: Global Warming's Terrifying New Math

Tue Apr 02, 2019 6:24 pm

Phximiev wrote:More battery optimism from Broadbit:

https://youtu.be/bKpM325YipQ


Sodium breakthrough?

https://www.sciencedaily.com/releases/2 ... 111913.htm
2012 iMIEV ES
2014 Chevy Volt

WReed82
Posts: 56
Joined: Wed Nov 28, 2018 10:05 am

Re: Global Warming's Terrifying New Math

Wed Apr 03, 2019 9:56 am

I would love to see a big jump in battery life, capacity per pound/weight, use of easily available materials, faster charge times.

An EV driving friend just retired last year from a career as an automotive engineer.
He thinks we are approaching the limits of the laws of physics with currently available batteries before they
are unstable and at risk of blowing up.

He sees room for incremental improvements, such that ten years from batteries might be 10% better.

Will be interesting to see if any disruptive technology lands on the actually for sale shelf, at reasonable cost.

Thanks and good health, Weogo

abledrew
Posts: 6
Joined: Thu Nov 14, 2019 8:24 pm

Re: Global Warming's Terrifying New Math

Mon Nov 18, 2019 2:46 am

The thought of the rising sea level terrifies. Imagine, coastal cities eventually getting submerged in deep water, 50 years from now. That's a scary thought. We humans, are to blame.

Don
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Re: Global Warming's Terrifying New Math

Mon Nov 18, 2019 10:15 am

abledrew wrote:Imagine, coastal cities eventually getting submerged in deep water, 50 years from now.

"Submerged in deep water" makes me think of the Titanic - In 50 years I'm thinking it may be more like ankle or knee deep in some places. In 150 years, maybe ten or 15 feet. "Deep water" . . . . even as bad as things look now, I doubt that's very likely . . . . certainly not in just 50 years

The current IPCC "High End Estimate" for 2099 is 3 feet (revised upward from their 2007 estimate of 2 feet) . . . . though 6 to 9 feet is "physically plausible". I guess it all depends on your definition of 'deep water' . . . . but the shallow end of a swimming pool is far deeper than what's currently projected

Don
2012 iMiEV SE Premium, White
2012 iMiEV SE Premium, Raspberry Metallic
2012 iMiEV SE, White
2017 Chevy Volt Premier
2014 Ford Transit Connect XLT SWB wagon
2006 Itasca Navion Sprinter Motor Home

PV1
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Re: Global Warming's Terrifying New Math

Sat Mar 14, 2020 10:22 am

So, with all the fanfare over COVID-19, what hasn't been making the news, for good or bad reasons, is the environmental benefit of shutting down much of China's manufacturing. While it's still too early to get a clear signal, CO2 concentration in the atmosphere has mostly leveled off at 414 ppm. There has been a slowdown this time of year anyway for most of the last 20 years due to Chinese New Year, but the next couple weeks will be telling if Corona had an impact and by how much.

So far, the data is hinting that March could have a lower monthly average concentration than February, which would be a first in the Mauna Loa record. With many facets of US life set to shut down next week, this could be a reality.

Data and interactive charts found here:
https://www.esrl.noaa.gov/gmd/ccgg/trends/monthly.html
"Bear" - 2012 Diamond White Pearl ES with QC - 2/21/2013
"Koorz" - 2012 Cool Silver Metallic ES with QC - 1/5/2015
"Photon" - 2017 Bolt EV LT in Orange with QC - 7/31/2017

Solar-powered since 10/10/2013

PV1
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Location: Pittsburgh, PA

Re: Global Warming's Terrifying New Math

Fri Mar 27, 2020 7:57 am

Sadly, CO2 concentration is still climbing and is currently at 415.43 ppm, so a 2-month long 10-15% reduction in global emissions didn't make a measurable difference on the curve.

Combine that with the fact that most environmental progress made hasn't kept up with total emissions, ever feel like you're fighting a structure fire with a spray bottle? :cry:
"Bear" - 2012 Diamond White Pearl ES with QC - 2/21/2013
"Koorz" - 2012 Cool Silver Metallic ES with QC - 1/5/2015
"Photon" - 2017 Bolt EV LT in Orange with QC - 7/31/2017

Solar-powered since 10/10/2013

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