Battery Electric Vehicle News / Enjoying the Transportation Revolution

NigeWick

Martyn1981 wrote: »

being stuck with a design issue of having to build all cars around a single sized 'hole'

Doesn't the upcoming little Fiat BEV have the capacity to add or remove battery capacity?

Martyn1981

Looks like the ICE v BEV 'war' is over, it's just that the fighting will go on for some time.

Fossil Vehicle Sales In Global Freefall — Down 4.7% In 2019! Electric Vehicle Sales Continue To Grow — CleanTechnica Report


And a good example of BEV's 'winning' is when you look at their impact within a comparable sector, such as the US small and midsize luxury car segment:

Tesla Model 3 Dominates US Premium-Class Small & Midsize Car Market — 23% of 2019 Sales*

JKenH

Martyn1981 wrote: »

This vid was really interesting, it looks at the Chinese BEV maker Nio and their decision to swap battery packs. This can be done in 5-6mins, and you can even 'rent' a larger battery pack if needed.

They have two battery sizes and are about to launch a third, but all packs are the same physical dimensions.

The vid goes on to explain why other companies are less keen on the idea (being stuck with a design issue of having to build all cars around a single sized 'hole'), but how it works well in China, especially where most people live in tall housing complex's and can't easily plug in.

This EV Gets a Full Battery in 5 Minutes

Prescient of GA

GreatApe wrote: »

Battery swap technology would be much better investment

Solarchaser

Aye cos no-one mentioned it till the troll ������

I'm sure ev manufacturers are looking to him for inspiration

silverwhistle

JKenH wrote: »

Prescient of GA

Haha!. Sometimes Ken you make me laugh with your desperate efforts to defend/support GA. It's an idea that has been floating around for years. ISTR an Israeli company producing an implementation which was never taken up by the manufacturers, and a system already exists and is in use for mopeds in Taiwan.

EVandPV

silverwhistle wrote: »

Haha!. Sometimes Ken you make me laugh with your desperate efforts to defend/support GA. It's an idea that has been floating around for years.

Yes, old news I'm afraid. Nice try though.

https://electrek.co/2020/01/17/ev-battery-swapping-is-dead-in-us-but-china-wants-to-make-it-happen/

With the rise and fall of battery-swap company Better Place in 2013,

Tesla abandoned the idea a few years later.

GreatApe

I suggested battery swap is better than wireless charging not that battery swap is necessary or the best option

Current battery tech is able to charge at a peak rate of 5.5% of capacity per minute but that rate falls off

If charge rates can improve so that the peak 5.5% per minute charge rate can be maintained and be maintained between 5-95% charge state that would mean empty to full in 16 minutes which would be perfectly acceptable. If rates improve to 9% per minute it would take just 10 mins to go from 5% to 95%

Those who can charge at home can do so for 5p/kwh
Those who can't can supercharge once or twice a week probably for 15p/kWh
With maybe the supercharger stations offering cheaper 10p rates for night time chargers who do so 11pm-6am

And maybe some medium speed charging infrastructure eg supermarket and shopping center car parks with 7.2KW chargers at 10p/KWh

GreatApe

Also charge and discharge rate improvements help plug in Hybrids more than BEVs

At current tech a discharge rate of 6% of battery capacity per minute is acceptable
This means a 10KWh pack can only output 36KW of power for sustained periods for acceleration
That's only 48 Horse Power which is okay but no speed demon

If discharge rates improve to double you could have plug in hybrids with 100HP electric drive trains with just 10KWh battery packs

And as such the petrol side can be really small at just 30HP yet the performance of this hybrid would be quite good with a combined 130HP and lots of torque

That's probably the future for some time
10KWh plug in hybrids with small 30HP ICE engines
40 mile electric then 400 mile petrol
90-99% of annual miles on electric only

The other 1-10% can be petrol or bio-fuels

JKenH

silverwhistle wrote: »

Haha!. Sometimes Ken you make me laugh with your desperate efforts to defend/support GA.

Well, it was timely that link about swappable batteries and I couldn’t resist so I am pleased you appreciated it.

I admit defeat. Life is too short.

Martyn1981

Some extracts from this weeks Carbon Commentary newsletter:

2, Benefits of car restrictions in cities. Only one person died on the roads in Oslo in 2019, a new low, and down from about 20 a year at the turn of the century. No pedestrians, cyclists or children were killed last year. By comparison, the northern English city of Leeds, with a slightly lower population, saw 26 deaths in 2018. The Norwegian city’s emphasis on pushing cars out of the city centre and improving cycle and pedestrian access routes seems to be responsible. Banning cars reduces carbon emissions, of course, and the evidence shows it improves physical activity levels and lessens pollution. The new accident data from Oslo strongly support the global trend towards banning cars from wide areas of cities and towns, a recommendation in my forthcoming book 'What We Need To Do Now'.

7, Vehicle to Grid. Vehicle batteries will become the most important form of electricity storage. Honda and Moixa, a UK battery business, launched their first two-way charging station at a local council’s offices in London. This pilot project with five chargers will demonstrate how a small fleet of Nissan delivery vehicles can provide electricity back into the offices when required at up to a maximum of 10 kW per charger, covering the baseload requirement.

8, Urban delivery vehicles. Another case of the auto industry investing in an electric vehicle start-up, probably partly in order to deal with the new EU targets for fleet emissions in this case. Hyundai and Kai put £85m (€100m/$110m) into a UK venture making the technology for light urban delivery vans. The Korean automakers intend to use the ‘skateboard’ design (similar, at least in appearance, to the Rivian design backed by Ford). Arrival claims that that its product is no more expensive than internal combustion equivalents.