A battery-powered car that can travel 400km on one charge

[ChinaPhil]

A battery-powered car that can travel 400km on one charge
BYD says that its new E6 electric car due out before the end of the year will do 250 miles (400km) on a single charge.
This is a very big number. The Tesla electric sports car does almost as much, but has little room for anything else in the car but the battery.
The E6 is roomy with space for five passengers and a good-sized boot. The battery tucks under the back seat.
It needs 7-8 hours with a domestic plug to charge the car but BYD - it stands for Build Your Dreams - says a specially developed fast charging point with a lead the diameter of a fire hose will fill up the car in just one hour.
You can get half a charge in only 10 minutes.
http://news.bbc.co.uk/2/hi/science/nature/8315947.stm

 

[317537]

Let us look at the accuracy of the claim first. BYD is already the world's number two in rechargeable batteries, and for the E6 it is using a ferrous battery it has developed itself.

Interesting.

I was always wondering about the Fe in LiFePo4 and wanted to experiment with stainless steel but was warned about dangerous gasses. Not saying that stainless is what they are using in this tech.

 

[Puppyjump]

This is not going to be permitted. I await some sort of sleazy scandalous move by Chevron to insure this EV never floats over to our shores from China.

 

[lifepo4ever]

for now the tesla car is way better for the price and can do the same milage on a single charge and more better performance

they use 6000 / 18650 cells and the better price I found to build the same battery is 30000$ us but you can buy the car for 50000$US
the performance is still 0 to 60 in 6.5 second

sport version can do 0to 60mph in 3.9 second but cost 100000$

 

[Drunkskunk]

Let us look at the accuracy of the claim first. BYD is already the world's number two in rechargeable batteries, and for the E6 it is using a ferrous battery it has developed itself.

Interesting.

I was always wondering about the Fe in LiFePo4 and wanted to experiment with stainless steel but was warned about dangerous gasses. Not saying that stainless is what they are using in this tech.

Not sure how you would use stainless. the Fe in LiFePO4 is is designating a component in a molicule. Chromium, Cr and Nickel, Ni are in surgical Stainless as 20% and 10%, so the Molicule for the LiFePO4 with stainless instead of Iron would .. if they would even combine.. look like Li10Fe7Cr2NiP10O40.

 

[monster]

so they are claiming that their car can do 250miles on only 25kwh? thats 100wh/mile! have they broken the laws of physics? my bicycle uses 30wh/mile sometimes.

i would believe the result if they measured it at 5mph around a test track without braking.

 

[jag]

so they are claiming that their car can do 250miles on only 25kwh? thats 100wh/mile! have they broken the laws of physics? my bicycle uses 30wh/mile sometimes.

i would believe the result if they measured it at 5mph around a test track without braking.

It would be nice to see some technical info to back the 100wh/mile. That's AFAIK 2-3 times better than a typical EV conversion of a regular car. But lowering weight, rolling resistance and air drag possibly achievable. Now, did they say how the range and efficiency tests were done? Say constant 30mph on a flat road is very different from typical driving.

 

[MikeB]

so they are claiming that their car can do 250miles on only 25kwh? thats 100wh/mile! have they broken the laws of physics? my bicycle uses 30wh/mile sometimes.

100wh/mile is what I averaged on my medium sized scooter, in traffic, at speeds up to 50mph. But the aerodynamics of a scooter are pretty bad, especially compared to a well-designed car body. It's quite plausible that an aerodynamic car could hold highway speeds and still consume only 100wh/mile, though it's higher weight would hurt that number when accelerating/decelerating in traffic.

 

[dozentrio]

Claims of range aside, do they really think people are going to wait at a charging station for an hour when they run out of charge? I think instead of asking the government to set up a ton of charging stations, they should subsidize integrating the chargers into people's homes.

 

[Lock]

yawn...
400kms on a charge? Closing in on the Solectria Sunrise that did 375 miles (600kms) on a single charge... in 1996... w/NiMH
http://www.evdl.org/pages/sunrise_tds.html

tks
Lock

 

[thomas]

The world record for the tesla is 500km and they claim to get 400km with a 25kwh pack.....