151–160 of 172 posts
Lithium mining destroys the environment. Sure, oil does too. But so does lithium.
Lithium mining destroys local environments just like most mining activities. Oil creates a global antropomorphic environmental cataclysm. The two are not the same and this is weak whataboutism.
Somewhat off-topic, but maybe someone knows. There's one thing that worries me about EVs: local pollution. So, ICE cars release CO2 + they release local pollutants (NO, CO, etc), particulate matter, that kind of thing. EVs obviously don't directly release CO2 nor do they release those local pollutants. However, EVs are on average much heavier (probably 200-400kgs heavier), which means that they probably need bigger t…
I don't have a specific study but regenerative breaking as used in commercial EVs would mean less particulate from breakpads etc. not more.
Though I did discover when I do replace them they won’t be quite as good because copper sintering has been outlawed due to metal pollution.
Lithium mining destroys the environment. Sure, oil does too. But so does lithium.
Lithium mining destroys local environments just like most mining activities. Oil creates a global antropomorphic environmental cataclysm. The two are not the same and this is weak whataboutism.
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All those things are true when comparing NiMH to NiCd but definitely not compared to lithium batteries. There's not a single metric for which you can't find a superior suitable lithium chemistry. Except for one: $Cost Just Toyota doing Toyota things. Also I would strongly disagree on the Prius comment. A lot of "HV battery fault" cars out there back in the day, refurbing them was a pretty good business for a while. T…
Cost, as you mentioned, is one reason. However they also fare better at extended temperature ranges and under long periods of self discharge. They are, generally speaking, more forgiving of a battery chemistry. Your quote about rollout of the Prius is exactly my point. That opinion was widespread when the Prius was introduced. The reliability of the Prius since then has changed public opinion greatly.
NiMH infamously has HORRIBLE self discharge performance in comparison to pretty much any lithium chemistry.
Multiple lithium chemistries outperform NiMH in low temperature performance. Even LFP which is generally not recommended for unregulated conditions below about -10 degree will function at reduced capacity at -40c. Nearly all chemistries, except maybe LMO, have superior high temperature performance.
I also don't understand what you mean by more forgiving chemistry?
Production yields? Modern lithium cell plants can easily do 80%+
Tolerance to production variations? Multiple lithium chemistries are just as tolerant.
Fire/puncture resistance? Multiple lithium chemistries areas as safe or safer
Voltaic efficiency/Energy Efficiency/etc? Lithium chemistries are SIGNIFICANTLY better
Memory effect or reduced voltage? NIMH yes while lithium none
Cycle life? Once again nearly every lithium chemistry is superior. Some even still have acceptable performance after an order of magnitude more cycles than a NiMH cell.
At this point there is literally no reason someone would chose NiMH for a ground up design in a consumer vehicle other than cost ....seriously like none.
Also yes Prius reliability is pretty good, but the reliability and performance of the NiMH battery packs were not even in the range for what would be acceptable in a commercially successful EV.
At the time when commercial lithium batteries were $1000-$5000/kwh hour sure they were a fantastic compromise, but it's not even close now.
If Tesla had started with NiMH they would have been dead meat right out of the gate. Gone out of business in a couple years at most.
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Do you live in a house with your own dedicated charger? How does this apply to someone living in an apartment or other similar situation to not having dedicated chargers?
I live in an apartment in SoCal and have an EV. I just charge on the weekend and haven't had much issues, but yeah, it can be an inconvenience. My "full tank" is only 7$ though so I can't complain. lol
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2-3 years at least . I drive a 2010 toyota and I expect at least another ten years out of it
I drive a 2009 BMW X5 and frankly I never want to change :)
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I live in an apartment in SoCal and have an EV. I just charge on the weekend and haven't had much issues, but yeah, it can be an inconvenience. My "full tank" is only 7$ though so I can't complain. lol
Not being an EV owner or someone seriously considering getting one enough to research the cost of a "full tank". Does that full tank charge (in $$ not volts) come out to the same if it's a super/hyper charger vs charging at home? I'd assume using it would be more expensive at a public charger since it is a business providing a service so markups on electricity would be expected. Just hadn't thought of it in those ter…
I live in SoCal which has high EV adoption with loads of chargers everywhere and off the top of my head.
Off-peak home charging costs about 7 cents / KWh. My car's battery has about a 71KWh capacity so that's about $5 for a full charge.
Super charging prices vary on the time of day and region, but let's pick the worse time. You'll see about a 20-40 cents charge / KWh. That will cost me about $15-30. You can see those prices go down if you're charging at good hours though. Tesla will have morning incentives for instance.
Supercharging costs are higher because:
* Supercharging stations (for Tesla) cost about 300-400k USD per unit.
* Electricity providers charge a premium for higher amps/volt service.
As far as I know, Tesla doesn't try to make a profit with chargers. They keep it close to cost.
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Cost, as you mentioned, is one reason. However they also fare better at extended temperature ranges and under long periods of self discharge. They are, generally speaking, more forgiving of a battery chemistry. Your quote about rollout of the Prius is exactly my point. That opinion was widespread when the Prius was introduced. The reliability of the Prius since then has changed public opinion greatly.
None of that makes any sense. What are you using as the basis for those statements? I feel like I'm hearing doublespeak where down is up. NiMH infamously has HORRIBLE self discharge performance in comparison to pretty much any lithium chemistry. Multiple lithium chemistries outperform NiMH in low temperature performance. Even LFP which is generally not recommended for unregulated conditions below about -10 degree wil…
There are, for sure, a tons of great lithium chemistries in existence. But, outside of some very specific markets, they are not used in cars yet.
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With our last purchase, we went half-way and got the plug-in hybrid Chrysler Pacifica minivan (which replaced a Prius which replaced a Mazda 6 so it's been a continuous evolution). It's likely that the next car will be a full-on EV. Assuming you have an acceptable parking/charging solution available, a plug-in hybrid is a good option. The Chrysler uses gas more often in the winter to run the heater but even before th…
Do you have problems charging on a 30 amp charger? Mine will randomly stop charging when it's a 30-amp charger. (But it charges fine at 15 amps.)
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With our last purchase, we went half-way and got the plug-in hybrid Chrysler Pacifica minivan (which replaced a Prius which replaced a Mazda 6 so it's been a continuous evolution). It's likely that the next car will be a full-on EV. Assuming you have an acceptable parking/charging solution available, a plug-in hybrid is a good option. The Chrysler uses gas more often in the winter to run the heater but even before th…
I'm curious if you've run into any issues (Or worried about) cycling gas that long. I know that gas can "go bad" over the span of 6 months - 1 year. Do you ever intentionally run the gas, just so you can burn some and put new in?