Posted on 12/26/2023 1:30:16 AM PST by Libloather
**SNIP**
“It’s getting to the point where [the car] is almost like a consumable, like a TV,” Benoit said.
Benoit’s experience heralds a problem that early adopters of EVs, as well as electric micromobility devices like e-bikes and e-scooters, are beginning to face: These vehicles contain big, expensive batteries that will inevitably degrade or stop working over time. Repairing these batteries can have sustainability benefits, saving energy and resources that would otherwise be used to manufacture a new one. That’s particularly important for EVs, which contain very large batteries that must be used for years to offset the carbon emissions associated with making them. But many EV and e-mobility batteries are difficult to repair by design, and some manufacturers actively discourage the practice, citing safety concerns. The small number of independent mechanics who repair EV or e-bike batteries struggle to do so affordably due to design challenges, safety requirements, and a lack of access to spare parts.
“There’s a lot of batteries in the recycle bin that could be repaired,” said Timoté Rouffignac, who runs a small e-bike battery repair business called Daurema in Brussels, Belgium. But “because they are not made to be repaired, it’s quite hard to propose a good price.”
A lithium-ion battery in a smartphone contains a single “cell” consisting of a graphite anode, a metallic cathode, and a liquid electrolyte that allows lithium ions to move from one side to the other to generate an electrical potential. An e-bike battery often contains dozens of cells. EV batteries, meanwhile, can contain hundreds to thousands of individual cells, which are often packaged into “modules,” and from there, bundled into a battery pack. In addition to cells and modules, electric car and e-bike batteries typically include a battery management system that monitors the battery’s state of health...
(Excerpt) Read more at scientificamerican.com ...
>> What “repairs” are in order for a battery?
Most Li batteries are comprised of a number of standard “cells” like 18650. They’re joined togther in some series-parallel combination to achieve the required voltage and ampacity. The “wiring” is typically flat stainless steel ribbons that are spot-welded to each individual cell.
Those are facts, what follows is speculation.
One form of repair might involve finding and replacing individual “bad” cells.
Another form of repair might be salvaging “good” cells from “bad” batteries and connecting them to form a “good” battery.
None of this would be easy, straightforward, or cheap, methinks.
Sad, Scientific American was once a respected scientific journal now they are just another leftist propaganda tool. Like an aggressive all consuming cancer the left destroys everything.
FPGA = Field programmable Gate array.
VHDL = Very High speed Design Language.
Basically you buy a blankchip and have it do anything you want by a program language setting all the parameters.
Make it act like a Intel 8051 or a multi core AMD 64 bit machine as examples.
Look up Xilinx.
Saves you the problems of ASIC development at the sacrifice of speed.
ASIC = Application Specific Integrated Circuit.
You are a PE? that is scary.
I never bothered as that is like Longshoreman, only Family gets that nod. Only minimal skills need to be present.
I hope my neighbor never gets an EV , he’s a Courier and buys the cheapest crappiest car he can find then he does his own mechanic work , over the years he’s destroyed at least 25 cars trying to fix them ,LOL
Joe Rogan has a guest on and shows video.
The batteries cost is very high in human life.
15,000 people working by hand digging for cobalt in one mining pit... <-—!!!
https://twitter.com/amuse/status/1729917081255067832
There are huge junkyard lots filled with used electric cars because nobody wants them.Planned obsolescence.
Toyota 4-runner..30 years old.. 243,000 miles. Still operational.
Here’s a little ditty for you guys:
https://www.youtube.com/watch?v=EEXieo06ta8
$60,000 to replace battery // 2nd IONIQ 5 case confirms battery price!
I remember years ago when I first read about FPGAs. It sounded like it would be a great solution for many problems, but they never really seemed to catch on for general use.
I just read today that in the last three years we are well over $1.2 trillion into this green net zero crap. Wasted money. Could have something to do with inflation and an inefficient economy?
That is because they are embedded in just about everything.
https://finance.yahoo.com/news/xilinx-xlnx-stock-gains-q3-143302864.html
Not a lot of consumers even know they are there. Kind of like the MCS-51(8051). They are everywhere.
Pipe, steam, metallurgy, nuclear physics, welding design, pipe stress and strain, structural reinforcement, concrete, project management. Gas turbine design and mods. Steam turbines, generators, pipe hanger design. Fastener design. Fluid flow, thermodynamics, heat transfer, heat exchanger design, flange and tank designs. Wind and seismic design pipe design.
Not the magic inside computer chips.
You took me back to San Vito Air Station in Italy in the late 70s.
I was Comm Maintenance and we had a emergency backup that used a boatload of car batteries as you describe - it was suck-duty to have to service them all...
The point to my comment was that Tesla has a very huge stake in what happens to post-sale Tesla battery systems.
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