Into the Night
Verified User
Why will it get worse?
RQAA. I've already answered this question. So have others. Stop asking the same question over and over. It's already been answered.
Why will it get worse?
Well, that's the rub, isn't it? There is no revolution in battery technology. We are still using the same Lithium Ion batteries developed in the 1960's. Clever electronics that regulate over-charge and discharge have made LI batteries safe enough for standard use and displaced NiCad - except when iPhones and Galaxy Note's burst into flames. For the most part LI is nearly as safe as NiCad, but the technology is old. There is been no advance in actual battery technology in over 60 years. We have just added electronics around the same old batteries to keep them from catching fire and extending the life of them.
When and if they do invent something new, it could change the paradigm - but at the moment - we are still using the same old LI batteries we did in 1965
Lithium is a metal that burns at insane temperatures. LI batteries were avoided for decades because they would burst into flames if overcharged or discharged too quickly. Adding microprocessors to regulate charge and discharge has solved this issue, but in the case of a breach in an accident, an LI battery is extremely dangerous. You can't put them out with water. They need to be smothered.
Hmmm, given that Li ion batteries are, themselves, relatively new and somewhat revolutionary as opposed to Pb acid batteries and there's a ton of research ongoing resulting in different types of batteries like safer Li cells and even Na ion batteries I think a revolution is possible.
They are not new. They were invented 38 years ago.
Lead acid cells were invented in 1859. These incredibly successful batteries were used in the first EVs. They are, however, quite heavy. The advantage of this battery is the very low internal resistance, allowing a fairly small battery to provide 400A of current for a short length of time (perfect for starting a car!). Deep cycle style cells are used on electric forklifts. There the battery's weight is an advantage. They are not only power, they are the counterweight for the forklift!
Sodium ion cells are much heavier than Li-ion cells. They have a slightly higher internal resistance too, limiting their charge rate and discharge rate. Due to their weight, and that you will have to use more of them to carry the same joules as present Li-ion packs do, the payload capacity of the vehicle will become almost useless. Further, the sodium will have be manufactured using electrolysis, which produces the highly reactive sodium metal and an extremely toxic and highly reactive gas.
Sodium will self ignite in the presence of moisture. It's a class D fire. You cannot put it out with water (that caused the fire!). The gas is chlorine gas...highly toxic and dangerous. It also is extremely reactive. What are you going to do with it? Vent it to the atmosphere?
Sodium is about four times heavier than lithium.
I wish new technology WERE being developed. But there is nothing on the horizon.
EV's are stupid.
The best option is fuel cells.
EV's are destroying what is a sensible and rational move from ICE's. All because corrupt politicians have found a way to embezzle public funds.
60 years may be "relatively new" in human history - but is nowhere near "new."
Microprocessors have made them safer - I'd even say safe - but they are nothing new.
You still seem to be of the impression that new technology is not being developed. It most assuredly is. It is not easy but it is being worked on.
The chemistry hasn't changed since the Li-ion battery was invented, twit.
Holy Link Worship. The chemistry is the chemistry, moron. You canna' change the laws of physics, cap'n.
I have no problem with it. It only takes me a few minutes to refuel my car. I don't have to refuel a car with a full tank.Maybe you just enjoy buying gasoline all the time.
Yes you have. Don't lie. TANSTAAFL.That's cool. I haven't paid to "fuel" my car for about 3 years now.
I don't believe you. Charging an EV from solar panels will require days to charge the car from dead to full charge.I charge it on my solar at home.
So you don't take care of car. Noted.ANd there's next to no scheduled maintenance that I need.
I change my own oil. Typically once a year. It costs me approx $20 to do so. Are you that destitute?But if you are made of money you should enjoy all the oil changes
Not a problem, as I've said.and all the gasoline you have to buy.
You ARE stupid if you think you are driving for free. TANSTAAFL.I'll just remain "stupid" and drive for free.
You never did.Worked in that area.
Hydrogen is easily stored in compressed tanks. The problem is filling those tanks and the fuel cell itself requiring expensive materials to manufacture, and the slow ramp-up to power, necessitating carrying large battery packs (usually Li-ion these days) to ballast the load.Not a great call. When I was at a transportation fuels conference back in Norway about 20 or so years ago the idea was that fuel cell vehicles would be dominant in the market if they could figure out a way to store the H2.
Less then 1% of the cars on the road are EVs. That's not 'ramping up'.Except that fuel cells have not taken off as a technology in the consumer transportation sector. EV's are ramping up like mad. They are all over the place now.
The Hybrid/Electric Limited Battery Warranty covers defects in the factory workmanship or materials of the vehicle's lithium ion battery for 10 years from the date of original retail delivery or date of first use, or 100,000 miles, whichever occurs first.
EVs batteries do not fail at 100K. Real world examples show they last a lot longer than that. The new batteries will be even better in all aspects.
I wish new technology WERE being developed. But there is nothing on the horizon.
EV's are stupid.
The best option is fuel cells. EV's are destroying what is a sensible and rational move from ICE's. All because corrupt politicians have found a way to embezzle public funds.
They fail at about 7 years - pretty consistently.
I'll have to pull my warranty - I don't recall anything about miles on the batteries - I think it was 10 years. Even so, I know for a fact it's pro-rated.
That doesn't change the fact of my post. Sorry.
I understand. You can't read and the little you CAN read you don't understand. I'm sorry to hear that. Maybe your mommy can read it for you. Maybe she can explain some of the bigger words.
Microprocessors are really not involved in charging any battery. Li-ion batteries can accept a certain maximum charge rate depending on the ability to dissipate the heat and the internal resistance of the battery (pretty low for Li-ion). Any method of providing the necessary current works.
The discharge rate is also not microprocessors. That is controlled by a bank of power transistors in a typical modern EV. Those transistors are pulsed by a varying duty cycle according to the position of the accelerator pedal.
Yeah, Teslas and other cars use microprocessors to spiffy it up, including reading the accelerator pedal position and switching the transistors, but that's about it.
Charging stations (such as you find at your typical parking lot these days) use microprocessors for billing and for the display, but the basic circuit is simply a large transformer and a rectifier bank.
Specially wired home charging stations contain the rectifier in them, and depend on the transformer on the pole.
Charging stations often break simply because the rectifiers failed (static electricity problems, weather exposure problems, etc).
ALL battery technology performs worse in colder weather. The EV requirement in Norway, for example, is really going to suck.
Neither microprocessors no Li-ion batteries are a key.That's not the key.
Lithium batteries are not used in EVs or computers. Li-ion batteries are. They are prone to ignition just sitting there if corrosion sets in. Usually not a problem with computers and their coin batteries (used to run the RTC). It IS a problem with EVs, because they run out in the weather and the shit on the roads.LI is prone to ignition if overcharged.
No, they were in use before microprocessors were really being applied to anything like that.What changed and made the batteries commonplace is the use of microprocessors in battery packs to regulate charge and discharge rates. Open any laptop and you'll find a control device.
While true, it is simply an easier way to do it than with the older circuitry. Kind of like FADEC engines today or even wall thermostats.A car uses a more sophisticated system than a laptop does, absolutely controlling the charge rate and ensuring the battery pack/bank is not overcharged.