I think the main issue is the first one you mention - infrastructure. EVs could piggy back off the existing grid infrastructure. Hydrogen needed to have a nation wide network of fuelling stations built, with specific equipment. It could work for people running local fleets that come back to a depot to refuel (buses, trains, local delivery vehicles), but not for general public usage.So you need hydride but its a weapon material so you cannot buy it you can make your own though but if you live in a 2 up 2 down that isn't going to happen, i have a feeling i now know why Hydrogen cars haven't caught on when you can simply plug an EV into the mains at home and if you have solar panels you can charge it with free electricity.
The other problem is its an odourless gas that cannot have an odour added (as other odourless gasses have)as it doesn't like it so if you has a leak into your car you wouldn't know, light a ciggy - BOOM.
But surely having a car that was 'Battery Swap Compatible' would be a selling point. It would not be necessary for every car type, for instance most small town cars rarely travel more than 30 miles, but for the 'repmobiles' and motorway mile munchers, it would be a necessity. And it would be in the interest of the likes of BMW, Audi, Tesla etc. to work to a compatible format.I have thought this was a sensible thing to do, but the realities of our capitalist culture won't allow this to work unless everyone had the same car (or car built on same chassis design).
But manufacturers are in competition with each other & people don't want to all drive the same car do they.
What type if port does your capitalist produced laptop have for memory sticks and other devices? What type does your neighbors have?I have thought this was a sensible thing to do, but the realities of our capitalist culture won't allow this to work
Aint that the truth.It's a complex topic, lots of counter arguments and vested interests. It will be fascinating to see how it all pans out.
One thing for sure is that brewing beer is a lot simpler ... and that's complicated enough sometimes!
Right now it's debatable how important "fast replenishment" is - I can't remember the exact figures but it's something like >90% of cars never go more than 200 miles in a day so will never need to charge away from home. Even a rep doing 40,000 miles a year is only averaging 167 miles per weekday (x 48 weeks), which any of the What Car top-10-by-range cars ("real" range 196-259 miles ) could handle. Obviously there will be days when they do more than that and will need some kind of replenishment, but the current state of the art on range is not that far away even for repmobiles. Since batteries are a major cost, it looks like we're heading for a market in which battery size will be one of the major specs like engine size for petrol cars - the new VW ID.3 has a standard list range of ~260 miles, but has a version with 337 miles at a ~10% premium (but heavier, so ~10% slower), and apparently a cheaper one is planned with 205 miles range.But surely having a car that was 'Battery Swap Compatible' would be a selling point. It would not be necessary for every car type, for instance most small town cars rarely travel more than 30 miles, but for the 'repmobiles' and motorway mile munchers, it would be a necessity. And it would be in the interest of the likes of BMW, Audi, Tesla etc. to work to a compatible format.
Whatever you do don't rapid charge! You'll only get 300 charge/discharge cycles if you charge nice and slowly. I have, for reference owned 2 electric vehicles and have an extensive knowledge of battery technology. I even have a degree in chemistry so my knowledge isn't just something I picked up online.e.
And the current recharging state of the art can deliver >200 miles of charge in 30-40 minutes. So 15-20 minutes to take a 200-mile range up to 300-miles, which is enough for most people. So you have to ask - what is the market opportunity for any kind of replenishment that is much faster than that, whether faster recharging or battery replacement? At the very most, it's going to be a niche, which means it will be expensive, which means it will be even more of a niche. I guess the big opportunity would be for people who can't charge at home or at work, but I'm not sure that's going to be such a big market either.
I'm unusual, I regularly have to do a 250-mile journey, and sometimes do a 500-mile journey. I used to have a petrol car with ~270-mile range so I know how it feels to do these journeys with limited range. It would be very tempting to buy a long-range version that could do the 250 miles without stopping - I regularly do it like that but as often as not my bladder can't, and to be honest it is nice to stretch one's legs during a journey like that. So I could live with a 10-minute fast charge en route just as a quick top-up. But it's worth noting that I don't care about any extra range beyond that 250 miles (beyond a bit of allowance for battery degradation and doing it in winter).
So I don't think technology is so much the problem, as the details of roll-out. For instance, I'd be OK rapid-charging whilst I have my lunch, but only if I know I can rock up to a charger and start straight away, which makes lots of assumptions about investment in infrastructure that might only be used a fairly small amount of the time. Having to wait 40 minutes before I could start charging would be a pain, a journey that takes 8 hours is long enough as it is - and for that one trip I'd be prepared to pay if it meant I could guarantee a slot.
The problem with EV's is we think of them like we do petrol/diesel cars, when the battery eventually fail's you are basically left with a electric motor and wheels there are few components that wear out unlike in a Diesel/petrol car so putting a new battery into an EV is not such a bad idea, the longevity and range will improve and the price of batteries will come down as EV's become popular .Who'd replace a battery for a minimum of £6,000 when the car would then only be worth a few grand like most car are after a few years?
This is the problem with people who have decided these things are a waste of space and it doesn't matter how much those that think they are the way forward (like me) prove the opposite they still posts the same negative stuff over and over again.It's not just recharging which degrades batteries. Time is an equal enemy. You may find, for instance, that you can do 60,000 miles in 5 years
Except modern ones don't - and the comparison with phone batteries doesn't work because phones don't have the thermal management of car power packs.So few EV fanatics ever tackle perhaps the biggest drawback of battery power. As one of the top men at Nissan said when they released the Leaf "the life of the battery determines the life of the car". Back then they didn't realise that the batteries would average a mere 50-70,000 miles.