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EV Batteries Are Defying Expectations After Miles

wsj.com

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Re: EV Batteries Are Defying Expectations After Miles

#11

Post by y1n0 »

JumpCrisscross wrote: post #7
cgyvbunji wrote: post #4

They still die by calendar age based degradation. High miles low years isn't interesting. We know that works well. They don't like talking about the calendar age degradation. Every article like this leaves that part out. It's annoying. Many articles have been written like this. Many more will be written yet. I guess there are still people out there who don't know that EVs are ideal for drivers who accumulate high mil…

> They still die by calendar age based degradation Source?

Not OP, but this talks about it: https://www.sciencedirect.com/science/article/pii/S2352152X2...

Re: EV Batteries Are Defying Expectations After Miles

#12

Post by whatever1 »

Wasn’t the same concern with the Toyota Prius when it was first released? Only for all the doubters to be proven wrong by the taxi drivers who kept beating Priuses for decades.

In any case battery failure seems rare but it still is catastrophic and nobody can afford replacement. Hence companies should just provide some sort of warranty / insurance product for the few unlucky folks. Seems like an ideal candidate.

Re: EV Batteries Are Defying Expectations After Miles

#13

Post by foreigner »

whatever1 wrote: post #12

Wasn’t the same concern with the Toyota Prius when it was first released? Only for all the doubters to be proven wrong by the taxi drivers who kept beating Priuses for decades. In any case battery failure seems rare but it still is catastrophic and nobody can afford replacement. Hence companies should just provide some sort of warranty / insurance product for the few unlucky folks. Seems like an ideal candidate.

They do.

Re: EV Batteries Are Defying Expectations After Miles

#14

Post by stavros »

JumpCrisscross wrote: post #7
cgyvbunji wrote: post #4

They still die by calendar age based degradation. High miles low years isn't interesting. We know that works well. They don't like talking about the calendar age degradation. Every article like this leaves that part out. It's annoying. Many articles have been written like this. Many more will be written yet. I guess there are still people out there who don't know that EVs are ideal for drivers who accumulate high mil…

> They still die by calendar age based degradation Source?

Lithium batteries age even just sitting on the shelf. I fly RC planes and we store our batteries at 3.8V to lengthen their life, but they still deteriorate even when not used. Like anything else, I guess.

Re: EV Batteries Are Defying Expectations After Miles

#15

Post by defrost »

stavros wrote: post #14
JumpCrisscross wrote: post #7

Earlier quoted context omitted.

> They still die by calendar age based degradation Source?

Lithium batteries age even just sitting on the shelf. I fly RC planes and we store our batteries at 3.8V to lengthen their life, but they still deteriorate even when not used. Like anything else, I guess.

The article specifically talks about how this has changed with the evolution of chemistry in Li based car batteries.

I suspect the RC plane batteries you've been using for five years are not the same chemically as the EV car batteries in use in the UK for five years.

Re: EV Batteries Are Defying Expectations After Miles

#16

Post by foxglacier »

small_model wrote: post #8
cgyvbunji wrote: post #4

They still die by calendar age based degradation. High miles low years isn't interesting. We know that works well. They don't like talking about the calendar age degradation. Every article like this leaves that part out. It's annoying. Many articles have been written like this. Many more will be written yet. I guess there are still people out there who don't know that EVs are ideal for drivers who accumulate high mil…

False "A 2015 Model S with over 265,000 miles on the original battery (85% capacity remaining)"

That's 25000 miles per year, which is high. So the opposite of false.

Re: EV Batteries Are Defying Expectations After Miles

#17

Post by defrost »

foxglacier wrote: post #16
small_model wrote: post #8

Earlier quoted context omitted.

False "A 2015 Model S with over 265,000 miles on the original battery (85% capacity remaining)"

That's 25000 miles per year, which is high. So the opposite of false.

The comment above is (I would guess) about the eleven years of original battery usage rather than the mileage.

The implication being that runs counter to the claim of "calendar age degradation".

Re: EV Batteries Are Defying Expectations After Miles

#19

Post by avidiax »

stavros wrote: post #14
JumpCrisscross wrote: post #7

Earlier quoted context omitted.

> They still die by calendar age based degradation Source?

Lithium batteries age even just sitting on the shelf. I fly RC planes and we store our batteries at 3.8V to lengthen their life, but they still deteriorate even when not used. Like anything else, I guess.

Put them in the vegetable bin in the fridge, too. Should make them last much longer.

Re: EV Batteries Are Defying Expectations After Miles

#20

Post by Exoristos »

whatever1 wrote: post #12

Wasn’t the same concern with the Toyota Prius when it was first released? Only for all the doubters to be proven wrong by the taxi drivers who kept beating Priuses for decades. In any case battery failure seems rare but it still is catastrophic and nobody can afford replacement. Hence companies should just provide some sort of warranty / insurance product for the few unlucky folks. Seems like an ideal candidate.

Those old taxi Priuses have had their batteries replaced.
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