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re: When the Going Gets Tough, the Electric go Petrol

Posted on 5/24/21 at 3:46 pm to
Posted by antibarner
Member since Oct 2009
26703 posts
Posted on 5/24/21 at 3:46 pm to
BS. No matter what, you have to charge a battery. That takes time, a LOT more than fueling an internal combustion engine OR a fuel cell. We can still get hydrogen from natural gas right now by the way, and there's plenty of that.

Batteries are and always will be nasty things, from their production to their maintenance up to their disposal. You can't change THAT either. And no matter what if you have a bunch of electric vehicles you're going to have to generate that power somehow, and a LOT of it.
Posted by Swazla
Member since Jul 2016
1926 posts
Posted on 5/24/21 at 3:53 pm to
That's pretty typical of all electric vehicles. Cold weather, towing and even using the AC and heater will drastically lower your range...a lot mire than IC vehicles.

Posted by Clames
Member since Oct 2010
19563 posts
Posted on 5/24/21 at 4:04 pm to
quote:

Battery technology is quickly improving



Why do you morons keep peddling this myth? Battery technology has not appreciably improved in the last 15 years. The capacity per unit mass of lithium-ion batteries has only marginally improved, the only significant improvements have been in how to program microcontrollers to regulate charge/discharge cycles. That's improved safety, reliability, and longevity of batteries but has not increased their energy capacity.
Posted by roguetiger15
Member since Jan 2013
17562 posts
Posted on 5/24/21 at 4:05 pm to
Some of the articles are from March of this year.
Posted by shel311
McKinney, Texas
Member since Aug 2004
112853 posts
Posted on 5/24/21 at 4:10 pm to
quote:

Why do you morons keep peddling this myth? Battery technology has not appreciably improved in the last 15 years. The capacity per unit mass of lithium-ion batteries has only marginally improved, the only significant improvements have been in how to program microcontrollers to regulate charge/discharge cycles. That's improved safety, reliability, and longevity of batteries but has not increased their energy capacity.

Honest question...are you arguing semantics or are you actually saying battery range hasn't increased and charge times haven't decreased?
Posted by Clames
Member since Oct 2010
19563 posts
Posted on 5/24/21 at 4:15 pm to
quote:

The right needs to do a much better job of learning how to debate in ways that aren't so easily destroyed by logic.



Logic? You retards are so scientifically illiterate it's laughable. Grade-school level physical science is too tough for you to understand.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
72081 posts
Posted on 5/24/21 at 4:18 pm to
quote:

No one is forcing anyone


The shite is getting rammed down your throat and you don't realize it.

The marine market went diesel electric for certain work boats because it made financial sense to do so. Now they are going hybrid because the government will pay them to.
Posted by Clames
Member since Oct 2010
19563 posts
Posted on 5/24/21 at 4:22 pm to
quote:

Honest question...are you arguing semantics or are you actually saying battery range hasn't increased and charge times haven't decreased?


I'm literally saying battery technology has not appreciably improved. Range and rate of charging have somewhat improved due to better understanding of li-ion chemistry, but the level of optimization has about peaked there. That's why you are seeing the same 80kWh - 100kWh battery otions, because that's about the limit of what can be packaged safely in an average consumer vehicle.
Posted by EA6B
TX
Member since Dec 2012
14754 posts
Posted on 5/24/21 at 5:25 pm to


It’s a interesting marketing ploy that EV makers quote range based on a 100% charge, but quote charge time based on a 80% charge level. They do this because the recharging rate is exponential, it takes longer to achieve the last 20% of capacity, than the first 80%.

With the Tesla super charger, charging a model 3 to 80% takes 20 minutes, charging to 100% takes hours.
This post was edited on 5/24/21 at 7:08 pm
Posted by LSU2a
SWLA to Dallas
Member since Aug 2012
2898 posts
Posted on 5/24/21 at 7:11 pm to
quote:

Why do you morons keep peddling this myth?


Starting off with ad hominems, promising.


quote:

Battery technology has not appreciably improved in the last 15 years


The energy density of batteries in general has improved on average 5-8% annually (doubling every 9-14 years) since the 90s.

https://www.quora.com/Is-it-true-that-battery-energy-density-improves-5-8-per-year-Does-this-represent-an-average-or-is-it-a-consistent-trend-each-year-Do-these-improvements-increase-the-cost-What-has-been-the-trend-if-any-regarding-energy-to-weight-ratio

quote:

The capacity per unit mass of lithium-ion batteries has only marginally improved, the only significant improvements have been in how to program microcontrollers to regulate charge/discharge cycles. That's improved safety, reliability, and longevity of batteries but has not increased their energy capacity.


Even if I accept your flawed premise your dismissal of an improvement in the useable amount of energy per unit mass is irrelevant to the main point-- batteries are supplying more power per unit of mass thus the range of electric drive train vehicles has improved at a rapid rate. Beyond that the other barrier was cost per energy density which has improved even more dramatically. Whether or not we have increased the underlying capacity of the battery is irrelevant to the question of improving range. Regardless, upcoming advances in battery tech promise continued progression in both creating additional energy density per unit mass and using that energy. With the massive amount of funding and time being put towards battery tech, it's safe to say we have plenty of room to advance. Just look at solid state batteries as an example.
Posted by RobertFootball
SC
Member since Mar 2021
2621 posts
Posted on 5/24/21 at 7:17 pm to
Because they’re pieces of junk. I will never own one.
Posted by shel311
McKinney, Texas
Member since Aug 2004
112853 posts
Posted on 5/24/21 at 7:39 pm to
quote:

It’s a interesting marketing ploy that EV makers quote range based on a 100% charge, but quote charge time based on a 80% charge level. They do this because the recharging rate is exponential, it takes longer to achieve the last 20% of capacity, than the first 80%.

With the Tesla super charger, charging a model 3 to 80% takes 20 minutes, charging to 100% takes hours.


100% this... But with a Tesla there's rarely ever a reason to need to be at 100%. If you're on a road trip, you can do the quick 20 minute charge to 80% you mentioned, and that's enough to get you to your next super charger.

Only thing off on your statement is it doesn't take hours for that final charge to 100%. It's probably an additional 30-40 minutes.

But yes, it's definitely a marketing ploy to quote range to 100% and charge time to 80%.
Posted by shel311
McKinney, Texas
Member since Aug 2004
112853 posts
Posted on 5/24/21 at 7:41 pm to
quote:

Because they’re pieces of junk. I will never own one.
lol
Posted by Clames
Member since Oct 2010
19563 posts
Posted on 5/24/21 at 7:51 pm to
quote:

The energy density of batteries in general has improved on average 5-8% annually (doubling every 9-14 years) since the 90s.


Oh good job child, citing Quora? Was that because it was on the first page of whatever you rapidly Googled because you imagined you had a point to make? All you've done is provided proof you are clueless, a brief examination of that link would have shown you that the discussion covered a variety of battery chemistries, including several using some form of lithium. Lithium battery chemistries are varried and few are suitable for consumer products, the most power dense of which (which bolster that graph by the way) are generally only found in military applications. So, dismiss whatever you want, willful ignorance is a common resort for people like you.
Posted by Spasweezy
Unfortunately, Louisiana
Member since Jan 2014
7253 posts
Posted on 5/24/21 at 8:11 pm to
quote:

Do these same kids forget to put gas in their cars who say they can't come into work because their drunk asses forget to get gas?


No, but they use their phone died excuse a lot when their alarms don’t go off. That’s a result of them forgetting to charge stuff.
Posted by LSU2a
SWLA to Dallas
Member since Aug 2012
2898 posts
Posted on 5/24/21 at 9:17 pm to
quote:

Oh good job child


Can you make it one sentence into your responses without ad hominem attacks? I'm the child?

quote:

citing Quora?


The answers are all cited and numerous. I doubt you have access to the sources that are behind paywalls so I'm forced to give you the wikipedia treatment. This is one better though, since the answers are from verified engineers that work in the field.

quote:

Was that because it was on the first page of whatever you rapidly Googled because you imagined you had a point to make?


quote:

All you've done is provided proof you are clueless, a brief examination of that link would have shown you that the discussion covered a variety of battery chemistries, including several using some form of lithium.


We are talking about batteries. I'm not sure why you are changing the subject and narrowing your focus on one specific type of battery. Probably because you have nothing better than a red herring or straw-man argument.

quote:

Lithium battery chemistries are varried and few are suitable for consumer products, the most power dense of which (which bolster that graph by the way) are generally only found in military applications. So, dismiss whatever you want, willful ignorance is a common resort for people like you.


I'm still waiting on your rebuttal that car batteries haven't improved steadily over the past few decades and project to continue to do so for the next few decades at least.

quote:

willful ignorance is a common resort for people like you.


I'm glad you know all about me. What exactly do you mean by "people like me"? All I can really tell about you is that you are quick to resort to belittling people you disagree with which suggest you are highly insecure about yourself.
Posted by EA6B
TX
Member since Dec 2012
14754 posts
Posted on 5/24/21 at 10:23 pm to
[quote]Only thing off on your statement is it doesn't take hours for that final charge to 100%. It's probably an additional 30-40 minutes.
[/quote

LINK

I found this real world test of charging times for the 2021 Model 3 Tesla. With the supercharger station it was 1hour 3 minutes for 100%

LINK

However, best case for home charging to 100% with the fastest 33kw charger is dismal, requiring 8-12 hours.
This post was edited on 5/25/21 at 1:44 am
Posted by antibarner
Member since Oct 2009
26703 posts
Posted on 5/24/21 at 10:31 pm to
If something happens to that battery how much does it cost me to replace it? Dispose of the old one? What sort of service life can I expect from a battery? How often am I going to have to stop and recharge with that 80% charge?

All valid questions.
This post was edited on 5/24/21 at 10:32 pm
Posted by EA6B
TX
Member since Dec 2012
14754 posts
Posted on 5/25/21 at 12:22 am to
quote:

If something happens to that battery how much does it cost me to replace it? Dispose of the old one? What sort of service life can I expect from a battery? How often am I going to have to stop and recharge with that 80% charge? All valid questions.


There is some independent real world data available for charging times, and range vs charge times. I have only been researching this because the manufacturers of EVs and their owners seem to only use numbers that present EVs in the most positive manner. So far they have a long way to go before I would buy one, and the answers to some of your questions are still unknown.
Posted by Clames
Member since Oct 2010
19563 posts
Posted on 5/25/21 at 12:44 am to
quote:

We are talking about batteries. I'm not sure why you are changing the subject and narrowing your focus on one specific type of battery. Probably because you have nothing better than a red herring or straw-man argument.



Because charging/discharging and providing batteries with feedback is responsible for the vast majority of the improvements made. People who actually know this stuff vs you who do not, get this fact.


quote:

I'm still waiting on your rebuttal that car batteries haven't improved steadily over the past few decades and project to continue to do so for the next few decades at least.


Let's take Teslas 2170 cells, touted as having 50% increased energy capacity over the industry-standard 18650. I'm sure that factoid plays into what you imagine as significant improvement but the 2170 has 46% more physical volume. In 10 years that means a 4% improvement in energy density. Not 4% per year, 4% in a decade and it's exactly the same chemistry as the cells found in consumer products for the last two decades. That's why every EV from Tesla to Ford to Audi and so on use 1200+ lbs battery packs made up of thousands of individual cells. If battery energy density was improving as much as you imagined it did, they would have 100 kWh battery packs that weigh 600lbs by now. But they don't, they just build them bigger with thousands of more cells. You are rebutted.


quote:

All I can really tell about you is that you are quick to resort to belittling people you disagree with which suggest you are highly insecure about yourself.


I'm quite secure kid, you are just the typical low-info type that parrots things without actually knowing anything. EV homers that pat themselves on the back every time a thread like this is posted.


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