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Ford's answer to EV supply chain hell: Cheaper batteries

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Re: Ford's answer to EV supply chain hell: Cheaper batteries

#42
post #13

I'm not sure why we aren't making EVs with small but upgradeable batteries. Like for example a $20k car with a 10kWh "good enough for now" starter battery that can be bought today. Still good enough for 90% of trips and upgradable to 50kWh with additional after market battery modules should the user decide. As simple as upgrading the RAM on an (old) laptop.

Have you seen the video of the bike battery swap.

https://youtu.be/yGwmPcClWrE

I wonder if a good solution is a smaller fixed battery for lower cost then "range extenders" like this for the bike you can swap in for longer journeys or a topup on a busy day type thing.

Re: Ford's answer to EV supply chain hell: Cheaper batteries

#43
post #13

I'm not sure why we aren't making EVs with small but upgradeable batteries. Like for example a $20k car with a 10kWh "good enough for now" starter battery that can be bought today. Still good enough for 90% of trips and upgradable to 50kWh with additional after market battery modules should the user decide. As simple as upgrading the RAM on an (old) laptop.

Not only that, but the weight of EVs is a huge toll on the infrastructure, esp. in more historic centers

Re: Ford's answer to EV supply chain hell: Cheaper batteries

#44
post #13

I'm not sure why we aren't making EVs with small but upgradeable batteries. Like for example a $20k car with a 10kWh "good enough for now" starter battery that can be bought today. Still good enough for 90% of trips and upgradable to 50kWh with additional after market battery modules should the user decide. As simple as upgrading the RAM on an (old) laptop.

It's almost as if EV is just an excuse to get the consumer to spend waaay more than is needed, wasting all the energy in production in producing cars that cannot be upgraded, than about about minimising the environmental impact. And that's because it is.

Corporations do not care about the environment, but they do know a good story when they see it. If they can get you to buy the same car multiple times, this is great business for them. If they can lobby governments to encourage the scrapping of old but serviceable cars, eg by fining non-EVs for their emissions, that means you will be forced to buy sooner.

It's all business. Neither corporations nor the governments that service corporations care about either the people or the environment. I wish people would recognise this fact, but corporate-government schooling/science/culture has everyone believing that government is here to help!

Re: Ford's answer to EV supply chain hell: Cheaper batteries

#45
post #38
post #27

Earlier quoted context omitted.

Laptop batteries and EV batteries have a completely different performance profile. The data we have suggests that the battery will retain 80% of its maximum capacity for about as long as the rest of the car is expected to survive.

Is it mainly because cars are idle/off most of the time, unlike laptops and smartphones, or is there something else at play here?

Big batteries have much more sophisticated battery management systems that are designed to be as kind as possible to the cells. Also they reserve a capacity of 10% on either side, leaving 80% usable capacity available to the user. Li-Ion batteries don't like being fully charged or fully discharged.

Also due to their capacity most EVs are charged at about 0.1C whereas phones (especially with rapid chargers) are charged anywhere between 1C and 3C.

Re: Ford's answer to EV supply chain hell: Cheaper batteries

#47
post #39
post #27

Earlier quoted context omitted.

Laptop batteries and EV batteries have a completely different performance profile. The data we have suggests that the battery will retain 80% of its maximum capacity for about as long as the rest of the car is expected to survive.

You miss the point. Most people don’t buy new cars. Most people buy second hand vehicles. They now risk degraded batteries and a huge incidental cost. My car cost me £5000 second hand. The cheapest EV battery replacement here is £12,500. I could write that car off twice for the price of a battery and still have enough money to go on holiday. When you buy the bottom end of the second hand EV market which is realistica…

> 128 miles of range. Which is near useless for the average user

Maybe if that is your only car. As a commuter or grocery car it would be fine.

Re: Ford's answer to EV supply chain hell: Cheaper batteries

#48

Earlier quoted context omitted.

I’d love a car with a tiny battery for 99% of the time when I’m just driving locally and the ability to have an extra, large battery that can be slotted in when I want to make a longer trip. With only the short range battery most of the time, my car’s weight is low and efficiency high. Maybe I could keep that battery in my house and use it to store solar electricity most of the time. It seems like it should be possib…

...say like a battery trailer with a CCS socket, and with extra storage as well, for long journeys? Low tech FTW. Smartrail is still a better soln but we have to be realistic here.

Will any electric car let you drive while it's plugged in?

I'm pretty sure Tesla's Rivians get locked into park when the charger is connected.

Re: Ford's answer to EV supply chain hell: Cheaper batteries

#50
post #13

I'm not sure why we aren't making EVs with small but upgradeable batteries. Like for example a $20k car with a 10kWh "good enough for now" starter battery that can be bought today. Still good enough for 90% of trips and upgradable to 50kWh with additional after market battery modules should the user decide. As simple as upgrading the RAM on an (old) laptop.

I’d love a car with a tiny battery for 99% of the time when I’m just driving locally and the ability to have an extra, large battery that can be slotted in when I want to make a longer trip. With only the short range battery most of the time, my car’s weight is low and efficiency high. Maybe I could keep that battery in my house and use it to store solar electricity most of the time. It seems like it should be possib…

> With only the short range battery most of the time, my car’s weight is low and efficiency high.

That would however subject the smaller battery to more charge/discharge cycles for obtaining the same mileage. Wouldn't that shorten its life?

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