Tesla Hate Thread - oh and come seethe about EVs in general with me

Is Tesla Gay?


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Saw one of the newfangled Amazon delivery vans recently. It looks to be electric.
That contract is the only thing keeping Rivian alive.
Nope. They’ve just found ways of stacking more 18650s into different pockets.
I think Tesla uses 21700 cells like high-end power tool batteries do. Well, formerly high-end. The new hotness for power tools is pouch cells.
80-90 kilos of gasoline has as much energy as 1000 kilos of battery.
That 1000kg of batteries is self-oxidizing and burns way hotter.
 
Fisker posted this statement about the recalls on the Ocean, and said that they will only cover the costs of the parts, due to their Chapter 11 bankruptcy, meaning that owners will have to pay for inspection and labor work:

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And even if Fisker hadn't gone bankrupt, the Ocean has been plagued with numerous issues, i.e. key fob batteries die quickly, door handles don't retract, the navigation system sets the location to Alaska, and poor throttle mapping on the accelerator pedal that requires you to press it further to get going.
 
probably a stupid question but in general has EV battery tech advanced since say 2012?

Like you'd assume with every auto maker and start up investing billions that we should have some major advances in this field at least in terms of range. like the 2013 tesla model s 85 kwh model has a range of 250 miles.

surely car companies have improved the efficiency of the cars since then right?

Obviously the charging will be forever fucked, but surely the battery tech allows it to compete with every new model car that has an insane MPG of 40+ now right?
The advances were mostly yearly promises that solid state batteries are totally coming soon which will revolutionise EVs, removing the fire hazard and cutting charge times in half.
Still waiting.
 
I think Tesla uses 21700 cells like high-end power tool batteries do. Well, formerly high-end. The new hotness for power tools is pouch cells.
They currently use a 4680, which is a cell of their own devising. It's supposed to be some new revolutionary packing technique and fancy materials whatnots that was going to revolutionise the industry, but it's just a short, fat lithium cell with a marginal capacity improvement.
 
The advances were mostly yearly promises that solid state batteries are totally coming soon which will revolutionise EVs, removing the fire hazard and cutting charge times in half.
Still waiting.
are solid state batteries even possible? If i remember high school physics correctly, electrons only really move on the surface of a metal, which is why power lines are braided or thin wires instead of a solid one and why faraday cages work.

If they really wanted to make a more effective battery, they'd need to make something that has a million layers of gold leaf or something.

maybe a battery made from gold, lead, and graphite would be more energy dense. Ignoring the cost to make
 
are solid state batteries even possible? If i remember high school physics correctly, electrons only really move on the surface of a metal, which is why power lines are braided or thin wires instead of a solid one and why faraday cages work.

If they really wanted to make a more effective battery, they'd need to make something that has a million layers of gold leaf or something.

maybe a battery made from gold, lead, and graphite would be more energy dense. Ignoring the cost to make
The skin effect isn’t really that important in a battery. It’s not a case of conduction inside the cell, it’s an electrochemical reaction, you’re not moving electrons through the electrolyte, you’re moving ions. To balance this, electrons are sent through the connected circuit.
 
are solid state batteries even possible? If i remember high school physics correctly, electrons only really move on the surface of a metal, which is why power lines are braided or thin wires instead of a solid one and why faraday cages work.

If they really wanted to make a more effective battery, they'd need to make something that has a million layers of gold leaf or something.

maybe a battery made from gold, lead, and graphite would be more energy dense. Ignoring the cost to make
Solid state batteries per se work, and are not even anything new. It just means the dielectric is a solid. But specifically it means solid state Lithium Ion batteries now. Lithium Ion batteries have two issues, the dielectric is flammable, and the anodes have a tendency to grow tiny little dendrites to the cathodes over time, which, once a connection is made, can short out the cells, releasing the energy stored in the cell, and starting a fire. A solid dielectric would fix both issues, which is why people have been trying to get them to work for years now. If you don't run into danger of shortening out the cells by dendrite growth, you can ramp up the charging current, for example.
But solid state LiIon batteries have some issues, and so far they haven't really gone into mass production despite yearly promises.
Like this, from half a year ago. Let's see what comes from it. Not holding my breath, regular LiIon production capacity has now been expanded a LOT by chinese manufacturers so shit's cheap, and LiIon won't go away for quite a bit until someone takes the plunge and makes a new type competitive. Once a new type even works reliably.
Ideally you'd want a new cell type that has a higher energy density than regular LiIon, can be charged faster, degrades less, and isn't a fire hazard. Bonus points if the cell uses Sodium instead of Lithium so it's cheaper. Wouldn't hold out for that, tho, Sodium usually gives you a low cell voltage, so there are downsides. Not to mention that pure sodium would be also a fire hazard and a half.
 
Ideally you'd want a new cell type that has a higher energy density than regular LiIon, can be charged faster, degrades less, and isn't a fire hazard. Bonus points if the cell uses Sodium instead of Lithium so it's cheaper. Wouldn't hold out for that, tho, Sodium usually gives you a low cell voltage, so there are downsides. Not to mention that pure sodium would be also a fire hazard and a half.
at that point you might as well find a way to do a controlled microburn of solid rocket fuel like an artificial metabolism or something.
 
at that point you might as well find a way to do a controlled microburn of solid rocket fuel like an artificial metabolism or something.
That’s actually sort of happening. You can use electrolysis to split water into hydrogen and oxygen, then store the hydrogen in a fuel cell where a catalyst turns it back into water with atmospheric oxygen to produce electricity again. It’s lossy, but so are all batteries.
 
at that point you might as well find a way to do a controlled microburn of solid rocket fuel like an artificial metabolism or something.
That’s actually sort of happening. You can use electrolysis to split water into hydrogen and oxygen, then store the hydrogen in a fuel cell where a catalyst turns it back into water with atmospheric oxygen to produce electricity again. It’s lossy, but so are all batteries.
Yeah, pretty much. "Burning" is just oxidisation that releases heat, and in a fuel cell you kinda use the oxidisation for charge transport, i.e. making a voltage.
Can also use other fuels, not just hydrogen (which sucks balls for being stored). Methanol, methane, ethanol, that sort of stuff.
But all the fuel cell types have some disadvantages. Size, efficiency, fuel issues... Sadly, nothing beats pumping out oil from the ground, distilling it a bit, and just burning it in some way or another when it comes to energy density.
 
Jesus Christ it fucking explodes. How the fuck is this legal.
I saw one with a Palestine flag bumper sticker. Didn't know they gave Teslas out to Palestinians.
Could be pretty effective for terrorism.
 

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