Topic: 320 km charge in 6 min

[Ex-airbalancer]

https://www.autoblog.com/2017/10/24/toshiba-scib-ev-battery-breakthrough-200-miles-charge-6-minutes/?hcid=ab-around-ab-tile-8

[johngenx]

This is where the industry is heading.  But, we're ignoring an issue.  Proprietary charging?  If this is the case, then the EV market will continue to be held back.  And seriously so.  If I can only charge my Tesla at Superchargers and my Toshiba at Toshiba stations, then we're never going to replace the ICE car.  Seriously.

But, RIGHT NOW, range and charging time are the competitive advantages that makers are using to lure consumers.  So, how the hell do we move away from that?

It will be interesting to watch.  If charge times are competitive but using uniform stations, that will be a huge leap forward.  It's more than possible.

[Ex-airbalancer]

This is where the industry is heading.  But, we're ignoring an issue.  Proprietary charging?  If this is the case, then the EV market will continue to be held back.  And seriously so.  If I can only charge my Tesla at Superchargers and my Toshiba at Toshiba stations, then we're never going to replace the ICE car.  Seriously.

But, RIGHT NOW, range and charging time are the competitive advantages that makers are using to lure consumers.  So, how the hell do we move away from that?

It will be interesting to watch.  If charge times are competitive but using uniform stations, that will be a huge leap forward.  It's more than possible.

This is where the industry must decide on a standard

How many different systems are out there ?

[EV-Light]

6min is such a reasonable time that we could convert thousands of gas stations into supercharger stations - and that’s how the end of combustion engines would happen


Sent from my iPhone using Tapatalk

[johngenx]

How many different systems are out there ?

Not many now, but it could end up being many, many proprietary systems.  GM, FCA, Ford, MB, BMW, Audi/VW/Porsche, Toyota/Subaru, Honda, Nissan.  There's nine plus Tesla and who knows who else might jump into the EV market.

It might go that way.  I can see some auto exec thinking "if we build a few thousand proprietary rapid charging stations, that gives us the competitive advantage we need to leap ahead in the EV market."

Sound familiar?  If other makers enter into that race, then we have a huge amount of duplicated infrastructure.  Ugh.

[carcrazed]

Hopefully government will step in make it standardized. I hate proprietary sh!t.

[EV Dan]

https://insideevs.com/toyota-exec-touts-its-coming-game-changer-solid-state-battery/

[johngenx]

Yup - just because they're not making Muskian proclamations doesn't mean they're not working damned hard on EV tech.  I'm not sure why the opening sentence of the article assumes that the press release is false - I completely believe that solid state battery tech along with rapid charging will cause the EV market to explode as long as the infrastructure difficulties are dealt with, and based on the amount of money that is being poured into this, I think it will.

The key is going to be to build the proprietary charging solutions into the car, not the station.  Then we can have universal "plugs" but makers still can work on charging time advantages, etc.

[bye]

https://electrek.co/2017/10/26/tesla-model-3-range-charging-capacity-underselling-epa-document/

interesting tidbit of information from the EPA document:

“The vehicle is also capable of accepting DC current up to 525A from an off‐board charger (Supercharger)”
...
DC charging current of “up to 525A” at 400 volts would be mean a charge rate of 210 kW, which is significantly higher than the current Model S/X’s Supercharger charge rate of 120 kW.

[EV Dan]

https://insideevs.com/fisker-patents-solid-state-battery-tech-commercialization-2023/
Video. 500 miles after 1 min charge 

[G35X]

https://electrek.co/2017/10/26/tesla-model-3-range-charging-capacity-underselling-epa-document/

interesting tidbit of information from the EPA document:

“The vehicle is also capable of accepting DC current up to 525A from an off‐board charger (Supercharger)”
...
DC charging current of “up to 525A” at 400 volts would be mean a charge rate of 210 kW, which is significantly higher than the current Model S/X’s Supercharger charge rate of 120 kW.

525A... Suppose internal resistance of the charging circuit including battery is 0.1 ohm, the heat generated at this high reate of current is 525^2 x 0.1= 27,562.5 J or W.  This is similar to ten 8-inch range-top heating coils going at Max in a rather confined space.  I would like to know how the heat is dissipated safely. Or, my assumption of 0.1 ohm is too high?

[ChaosphereIX]

https://electrek.co/2017/10/26/tesla-model-3-range-charging-capacity-underselling-epa-document/

interesting tidbit of information from the EPA document:

“The vehicle is also capable of accepting DC current up to 525A from an off‐board charger (Supercharger)”
...
DC charging current of “up to 525A” at 400 volts would be mean a charge rate of 210 kW, which is significantly higher than the current Model S/X’s Supercharger charge rate of 120 kW.

525A... Suppose internal resistance of the charging circuit including battery is 0.1 ohm, the heat generated at this high reate of current is 525^2 x 0.1= 27,562.5 J or W.  This is similar to ten 8-inch range-top heating coils going at Max in a rather confined space.  I would like to know how the heat is dissipated safely. Or, my assumption of 0.1 ohm is too high?

maybe it could be captured and used to heat other stuff...recycling heat like that happens in the high tech sector

[tpl]

https://electrek.co/2017/10/26/tesla-model-3-range-charging-capacity-underselling-epa-document/

interesting tidbit of information from the EPA document:

“The vehicle is also capable of accepting DC current up to 525A from an off‐board charger (Supercharger)”
...
DC charging current of “up to 525A” at 400 volts would be mean a charge rate of 210 kW, which is significantly higher than the current Model S/X’s Supercharger charge rate of 120 kW.

525A... Suppose internal resistance of the charging circuit including battery is 0.1 ohm, the heat generated at this high reate of current is 525^2 x 0.1= 27,562.5 J or W.  This is similar to ten 8-inch range-top heating coils going at Max in a rather confined space.  I would like to know how the heat is dissipated safely. Or, my assumption of 0.1 ohm is too high?

Is all of that  power dissipated as heat at charging time   or is most of it in fact changing the internal state of the battery as a charge .   It will all be dissipated as heat one way of another in the end of course.

[Noto]

https://www.huffingtonpost.com/entry/samsung-develops-battery-technology-that-charges-5_us_5a1be446e4b068a3ca6df964

I've always thought that materials science was a fantastic key to advances.

[bye]

This is similar to ten 8-inch range-top heating coils going at Max in a rather confined space.  I would like to know how the heat is dissipated safely. Or, my assumption of 0.1 ohm is too high?

Our Tesla S 85 charges at 90 kW peak, that's about 20 kW less than the newer Tesla models due to our car having the oldest battery pack design.
When charging full beans, the front radiator grill shutter automatically opens and the cars AC compressor runs through a battery coolant loop.
This even happens even in winter conditions if we have been driving for a few hours at above highway speeds and arrive to the supercharger with a warm battery.

My Smart ED cannot charge quickly enough to need to be cooled, but like the Tesla, it has a temperature managed battery pack, so in the winter, the car uses energy to warm the pack in -20C before increasing charge rate.