Posted on 06/04/2022 6:34:16 AM PDT by SeekAndFind
One of the biggest concerns about EVs is that the batteries will need replacing after a few years, at great expense. After all, your smartphone battery is likely to have seen better days within as little as three years. But a Tesla researcher is getting ready to kick this idea into touch once and for all, after demonstrating batteries that could potentially outlive most human beings.
Tesla enthusiasts are likely to have heard of Jeff Dahn already. He’s a professor at Dalhousie University and has been a research partner with Tesla since 2016.
His focus has been to increase the energy density and lifetime of lithium-ion batteries, as well as reducing their cost. Dahn appears to have hit the motherload along with colleagues on his research team. In a paper published in the Journal of the Electrochemical Society, the group claims to have created a battery design that could last 100 years under the right conditions.
Dahn’s paper contrasts cells based on Li[Ni0.5Mn0.3Co0.2]O2 chemistry (“NMC 532”) to LiFePO4. The latter is the “Lithium Iron Phosphate” (aka LFP) chemistry that Tesla is currently using in Chinese-built standard Model 3 cars imported into Europe. The LFP chemistry has lower energy density than more widespread Lithium-Ion alternatives, but is cheaper, more durable, and allegedly safer, too. LFP can last up to 12,000 charge-discharge cycles, so beating it in this regard is no mean feat.
Dahn’s NMC 532 cells showed no capacity loss after nearly 2,000 cycles. The paper extrapolates this out to imply a 100-year lifespan (they obviously haven’t been testing the battery that long).
(Excerpt) Read more at forbes.com ...
Except for the mining of the raw materials and manufacturing of the batteries... Anyway, they may be on track to solve one of the issues of EVs.
We’ll see
...and the issue of where the electricity for charging them will come from.
That would mean that the batteries could be pulled and put into another car....Yes??
LiFePO4 cells already can do 12 to 15,000 cycles to 20% DOD. A model 3 with a 330 mile range taken to 20% is 264 miles per DOD cycle over a 12,000 cycle lifetime that’s well over 3 million miles. The packs are expected to loose 20% capacity over that 12,000 cycle lifetime at the end of cycle accounting for th at extra 20% loss and keeping with a lower limit of 20% DOD you still have 198 miles of range per cycle even at that lower limit still well over 2 million miles of life. Tesla themselves expect the model 3 packs to be at least million mile packs they are targeting commercial service with the model 3 as a taxi which will do 100,000+ miles per year in commercial service roles getting to a million plus in a ten year depreciation schedule would be easy with a taxi or uber level of service. My last uber driver had 385,000 on his Toyota and said he drives 450+ miles per day for uber. It had already eaten a transmission he said same engine though.
Toyota has been doing extensive research on solid state batteries and will be using them in their ev/hybrid lineups. Don’t have the lithium fire hazard as well as other issues.
10 years ago I bought a boatload of A123 (LiFePO4) cells for ebike battery pack use. Still using them.
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You mean like windmills and unicorn farts?
Car in the future will be on a “skateboard” platform with the Edrive axles,packs,inverters and cooling all below the floor boards the body will be a bolt over shell similar to a VW bug back in the day and its platform frame. This way you can swap bodies out with ease upgrading to new configurations and the latest cabin tech on a frequent basis. Make the skateboard frame adjustable in wheel base length and width is easy with electrics that don’t have a transmission shaft running front to back. This also allows for a higher price point as much like a time you can finance an asset for 20+ years a $100000 asset over 20 years vs a 20,000 over 5 assuming you don’t have garbage credit ratings. Insurance covers an asset loss just like a homeowner’s policy and would obviously be required during the loan period.
Or the 15,000 watts of panels on tracker poles behind my large home plus the 10,000 watts on the guest house roof. My systems generate a surplus every month. Even with dual zone A.C. And two split zone Mitsubishi they don’t all run at once. My Mitsubishi are 13 SER and can keep my bedroom at 67 with little effort same for the man cave cigar lounge / media room at 70. Only when company comes over do I take both structures below 75 outside those rooms. In sunny Texas solar makes perfect sense. I got my panels before the supply crisis at under 18 cents per watt. Commercial grade panels 25 year
Capacity warranties delivered on a pallet off the bobtails class 8 lorry. My guys had them installed in an afternoon on poles in the acreage. Only later did u upgrade from manual adjustments once a month to axis and pitch to full trackers.
Call me when it can be charged from dead to full in about 5 minutes.
There are lots of Model T’s more than 100 years old. There is a great scene in The Grapes of Wrath where Tom Joad replaces a piston after 150k miles or so. The trick is to clamp the piston ring with a piece of copper wire. The copper melts in the cylinder but is softer than the iron of the cylinder so just gets sent out with the exhaust. ICE is one of the greatest inventions in history. Note the comments and article say they “expect” and are “targeting” things. No beef. Jerry cans of gas in the back of a pickup can give you virtually unlimited range, although diesel is a lot safer.
The market will provide. Keep these braindead idiots out of dictating electric cars.
“Or the 15,000 watts of panels on tracker poles behind my large home “
I have to think about that. HOA rules forbid any solar panels on the roof that can been seen from the street. So if you have alot of different roof angles, that leaves only a few that would work for me.
Everybody knows electricity comes from the plug in the wall
That is excessive. I’ve lived completely on Solar myself, only needed 1600watts and 1200 amp-hrs of battery. While it is self contained, it is definitely not green, when you calculate what goes into your system.
A battery design that could last 100 years under the **right conditions**.
As long as the charger is plugged in.
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