8% battery degredation after 16k miles!!

[skwdenyer]

Richard-D said:

What are you basing the statement "most cars end up scrapped due to the cost of repairing drivetrains" on?

He once owned a Land Rover product?

[Richard-D]

skwdenyer said:

Richard-D said:

What are you basing the statement "most cars end up scrapped due to the cost of repairing drivetrains" on?

He once owned a Land Rover product?

If you bought just [non Defender] Land Rovers I can see how you'd end up at that conclusion.

[DonkeyApple]

skwdenyer said:

Richard-D said:

What are you basing the statement "most cars end up scrapped due to the cost of repairing drivetrains" on?

He once owned a Land Rover product?

In my experience, they would disprove the assumption given the pace at which they love to rot.

I don't think the most common cause for scrapping a car these days is rotten bodywork as it once was but rather the cost of repaired on mechanical parts exceeding the perceived value of the car.

You just don't see rotten cars staggering about it these days. So if EV drivetrains are more durable than ICE then it seems logical to suspect that an EV will have a longer viable lifespan as a result.

[RobDickinson]

Not sure in the UK but here we dont put salt on the roads in winter, cars just dont tend to rust, and our average age is 15 years, and its accidents or mechanical failure that kill cars.

[Heres Johnny]

RobDickinson said:

Not sure in the UK but here we dont put salt on the roads in winter, cars just dont tend to rust, and our average age is 15 years, and its accidents or mechanical failure that kill cars.

Plenty of salt goes down here.

Rust of body work is a pretty rare thing though compared to 30 years ago due to improved materials. Suspension parts, brakes etc however do still take a bit of a hammering which is why Tesla recommend a brake service every year in areas where salt is used.

[caseys]

I don’t have anything to add about deg apart from my own experiences of 60k of EV driving so far. Nor solid state.

But one battery thing that stuck in my mind was when I was in one of my company labs in San Hose and was shown lithium air batteries.

There were car battery sized batteries in front of me. The standard lead acid weighed 20kg and had a certain kWh rating. Then there was the same sized lithium air battery. It definitely didn’t have the energy density of the lead acid, nor would it of a standard lithium ion battery.

But it weighed 500g…. 97.5% lighter than the other battery. This was back in 2018. Edit : it was mine boggling the cost of making that, as well as the complexity and yield. I then went off to look at some storage kit (it’s an IT and R&D company)

It made me start wondering, along with this conversation, when we’ll get hybrid packs. As people are now speaking more of batteries that are discharge (power) optimised, rather than capacity (kWh stored) density. Mainly for rapid reaction stuff in aerospace, where weight and discharge rate will be more needed than space (to a given extent).

Didn’t some car manufacturer look at using supercapacitors for discharge? An hybrid lambo iirc.

So I wonder if in 10 years time we’ll see performance EVs that have three energy stores - capacitors for urgent delivery, high discharge / high recharge for mid range and then high capacity ones to give the range.

We live in interesting times.

I’m still waiting, as I’m a child of the 80s, for a Mr Fusion

Edited by caseys on Tuesday 30th November 09:26