New super capacitor tech on the way

[brutal]

When they get it really perfected, we can have a hand held laser weapon. It won't kill the attacker, just permanently blind him. My futures so bright, I gotta wear shades...

Unless you're a Storm Trooper, then you can't hit shit anyway.

[brutal]

When will we get a real light saber? That would be cool. Especially for getting into bank vaults.

[CoGirl303]

The electrical vehicle technology is coming along at an amazing rate.

https://www.vox.com/2017/11/16/16665...-driving-price

The new Tesla semi-truck (ugly as it may be), has a range of 536 miles and requires only a 30 minute charge to add an additional 400 miles of range.
So I could drive from Denver to Little America, WY (330-350 miles give or take), stop and plug my truck in and take a 30 minute nap for my federally mandated break and then wake up and drive another 400 miles if I needed to. This is the key to electric vehicle technology in the trucking industry. Critics were saying only 536 miles wont get it done, when you can go 700 miles in a day at 65 mph on an 11 hour driving clock, but with the ability to add 400 miles of range on a 30 minute charge...this gives the industry the answer it has been looking for.

It accelerates to 60 mph in 5.x seconds when bobtailing (no trailer) and can hit 60 mph in 20 seconds when fully loaded at 80,000. Even more amazing, it will pull a 5% grade (Near Vail/Eisenhower steepness) in the mountains at 65 mph w/ 80,000 lbs of freight. My Freightliner only pulls those grades at 40-45 mph @ 65,000 lbs.

It has a feature where if the trailer starts to jack knife, it applies torque to certain wheels and takes it away from others to prevent it from jack knifing.




Sent from my iPhone using Tapatalk

[Justin]

The article states that this could lead to capacitors with a capacity of 180 watt hours/kg.

Big whoop. The 18650 lithium ion cells used in the Tesla Model S and X are already at a capacity of 250 watt hours/kg. The new cells used in the Tesla Model 3 are said to have even higher energy density than those, though I can't find a spec on it right now.

Furthermore the Tesla power packs come in at a $100/kg, which is pretty much the cheapest in the world at that density.

[Irving]

250 watt hours is pretty impressive, and from what I understand Tesla stuff charges pretty quickly already. This article seems to be insinuating that super capacitors charger much quicker than batteries, but now I wonder what the difference in charge times vs capacity between the best super capacitors and the best batteries.

[Gman]

The upside is that capacitors will charge faster and they don't wear out as quickly. They also don't catch on fire when exposed to air.

[Justin]

My understanding is that ultracapacitors charge quite quickly, so in theory, they would be a good choice for electric cars because charge times would be similar to filling up a car with gas.

That said, as I understand it, Tesla owners have two ways of charging:
- At home, charging the car overnight on lower voltage, which is more than adequate to cover daily driving to and from work, errands, etc. This means you basically never have to stop to "fill 'er up."
- Using the Tesla Supercharger network, which uses much higher voltages, and can add a couple of hundred miles of range in about 30 minutes. This is something that you would generally only use when taking a long distance road trip, and is still one of the main places where ICE-powered cars still have an advantage. For reference, check out Alex Roy's writeups on duplicating the Cannonball Run routes with Tesla automobiles.

[Gman]

I have yet to see a Tesla with out of state plates. On my last trip to the Olympic Peninsula of WA, I only saw 1 Tesla on the highway and it was on I-90 as it crosses the Columbia River/Wanapum Lake. The US is a damn big place, and if I spend a lot on a vehicle, I want to be able to enjoy it on long trips. There was a Tesla Supercharger station in Sequim, WA, but I didn't see a single vehicle using it.

One also has to remember that the Li-Ion batteries in an electric car like a Tesla have a very narrow temperature band at which they have their full rated capacity, around 70 degrees. Electric vehicles have a tough time in winter as the cold temps reduce battery capacity at a time when the occupants in the vehicle and glass surfaces need heat.

If you're going somewhere where there is a charging station, it likely isn't located at your intended destination. You have to go out of your way to get to the charger and either have to wait for a quick charge or find transportation between your vehicle and your intended destination.

Gasoline has about 100 times the energy per volume as a Li-Ion battery. It's also abundantly available and your on-board storage (fuel tank) will typically last the life of the vehicle. In the winter, heat is scavenged from the combustion process and doesn't create extra load on the system.

[CoGirl303]

I have yet to see a Tesla with out of state plates. On my last trip to the Olympic Peninsula of WA, I only saw 1 Tesla on the highway and it was on I-90 as it crosses the Columbia River/Wanapum Lake. The US is a damn big place, and if I spend a lot on a vehicle, I want to be able to enjoy it on long trips. There was a Tesla Supercharger station in Sequim, WA, but I didn't see a single vehicle using it.

One also has to remember that the Li-Ion batteries in an electric car like a Tesla have a very narrow temperature band at which they have their full rated capacity, around 70 degrees. Electric vehicles have a tough time in winter as the cold temps reduce battery capacity at a time when the occupants in the vehicle and glass surfaces need heat.

If you're going somewhere where there is a charging station, it likely isn't located at your intended destination. You have to go out of your way to get to the charger and either have to wait for a quick charge or find transportation between your vehicle and your intended destination.

Gasoline has about 100 times the energy per volume as a Li-Ion battery. It's also abundantly available and your on-board storage (fuel tank) will typically last the life of the vehicle. In the winter, heat is scavenged from the combustion process and doesn't create extra load on the system.

Once Solar Roadways gets past the testing trials phase and they begin mass production, you wont need charging stations because a simple wireless adapter installed in the car will charge it while it's motion.

http://www.solarroadways.com/

All light poles, stop lights, stop signs and skyline clutter will all come down. Snowplows will become obsolete as the panels will melt the snow off, plowing, sanding and salting roads will become a thing of the past, potholes and chain laws will become extinct.

The roads even illuminate when animals are crossing and alert drivers with an illuminated message on the road before they get to the animal.

traffic control and speed signs are illuminated w/ messages on the roads and at intersections.

Houses are powered by plugging into a panel. Cable tv and internet are powered through the panels.

Amazing things are coming!





Sent from my iPhone using Tapatalk

[Grant H.]

The article states that this could lead to capacitors with a capacity of 180 watt hours/kg.

Big whoop. The 18650 lithium ion cells used in the Tesla Model S and X are already at a capacity of 250 watt hours/kg. The new cells used in the Tesla Model 3 are said to have even higher energy density than those, though I can't find a spec on it right now.

Furthermore the Tesla power packs come in at a $100/kg, which is pretty much the cheapest in the world at that density.

LIPO (all chemistries...) can't begin to touch the life cycle of super caps. LiFePO4 is one of the best at ~2000 cycles.

Supercaps are nearly limitless, but are usually spec'd at ~1 million cycles.