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The battery as the new frontier

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On 01/11/2021 at 12:37, Gerrycan said:

Very interesting, I did not know there were solid state options already in production but reading the specs the larger battery package option is still about 550 litres and weighs 450 kg which is both bigger and heavier than I expected for the technology. Durability and design simplicity claims are impressive though. What is the price premium over conventional lithium and does it handle multiple deep cycles well (I'm expecting 'yes')?

 

We have been using this tech for most of the last decade.  We have about 5,000 cars on the Paris car sharing scheme with 30 kWh LMP batteries, we start to run it out in London too along with our owning/running of Source London but Paris Met Authority wanted to go a different way so we pulled the plug on the whole thing.  We do some similar stuff in Singapore with the buses and cars but do not do the cars anymore and sold Source London to Total. 

 

Yes they are fine for Deep cycle and thousands of recharges, they like to be permanently or the charger keeping them up over 50C most the time and were ready to use. Record rental was 40 on one car in a day.  6 minutes was the minimum rental and then in blocks of 6 minutes.  Might be all you need to go from Gare du Nord to Gare to Sud.

 

Overheating not a problem like with Charge-gate.  We work quite a lot with Super Capacitors and that is where much of new development is to work in unison with the battery and with the regen and fast resupply to the motor. Zap charging.....

 

https://www.youtube.com/watch?v=woMjb7kfgOU

 

 

 

 

  

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  • 1 month later...

This is really too common with EV's and Plug In Hybrids and across manufacturers.

 

The Industry is going to have to address this so that people can leave EV's parked for more than just a couple of days.

They are too much bothering about gimmicks rather than pure usability. 

 

 

 

 

 

 

  • 2 weeks later...

 

 

  • 2 weeks later...

The war in the Ukraine will be a bit of a hindrance to the EU, UK, Europe and global to electrification of transport and battery production.

That is unless Ukraine stays under Ukrainian control.

https://electrive.com/2021/11/08/european-lithium-secures-ukranian-lithium-deposits/

 

PS

Now the price on nickle is a major issue.   It never rains but it pours, but that is why Russia is a true Super Power. 

 

 

 

 

 

 

 

 

 

Edited by roottoot

3 hours ago, roottoot said:

The war in the Ukraine will be a bit of a hindrance to the EU, UK, Europe and global to electrification of transport and battery production.

That is unless Ukraine stays under Ukrainian control.

https://electrive.com/2021/11/08/european-lithium-secures-ukranian-lithium-deposits/

PS

Now the price on nickle is a major issue.   It never rains but it pours, but that is why Russia is a true Super Power. 

 

Cornwall on the way back as a major specialist metal producer.......

Whole 5 kgs a day as an experimental trial process, one EV a week's worth. 

https://www.spglobal.com/commodity-insights/en/market-insights/latest-news/energy-transition/010522-british-lithium-produces-first-lithium-carbonate-at-cornwall-pilot-plant

 

Plenty of several rare metals in Cornwall and Devon.

 

Norway are sitting on lots and eventually will start mining, and Scotland has as well and that seems to be someones little secret for when Scotland can profit and not have to just allow the UK Government to squander the nations resources.  

  • 1 month later...

 

 

  • 3 months later...

While sitting charging I hear on the radio 

that Dundee has been chosen to build a factory for producing batteries.  At the old Michelin tyre factory which is now a centre for technology and where SWARCO are based and CPS head quartered.   Ps sitting charging on the local 4 Tesco chargers have 3 hybrids charging that will be here for hours.  If an EV pulls up I will vacate this charger. If another hybrid does then tough they are out of luck. 

Edited by roottoot

6 minutes ago, roottoot said:

While sitting charging I hear on the radio 

that Dundee has been chosen to build a factory for producing batteries.  At the old Michelin tyre factory which is now a centre for technology and where SWARCO are based and CPS head quartered.   Ps sitting charging on the local 4 Tesco chargers have 3 hybrids charging that will be here for hours.  If an EV pulls up I will vacate this charger. If another hybrid does then tough they are out of luck. 

Out of curiousity, are there rules on charging?
I presume each location has rules for how long you can charge, or is it a free for all?

 

Only asking as you mentioned giving up your space if an EV pulls up, hybrids can self-charge etc.

Is this a rule, or just plain good manners to give up a space for an EV owner?

Supermarkets and the Rule is no rules in the main and people seem to go by something a friend told a friend.   Elsewhere there might be signs, there often is not.  It is like the wild west out there.    PS.  Volvo, Mercedes and old e-golf here now.  All have home chargers because I have spoken to them but they like free charging.  Fair enough. Stuffs up those actually shopping here and maybe wanting 30 mins on a charger. 

 

Edited by roottoot

There's no rule, it is up to the individual whether they want to give up the spot. 

 

Hybrids don't self charge, they pollute and burn fossil fuel to get energy to charge their battery. 100% of their energy comes from fossil fuel. 

Plug-in hybrids can charge by either burn fossil fuel or plug in to the grid where an ever increasing portion of electricity is generated via renewables. But the difference between PHEV and pure EV is that PHEV can continue their journey on fossil fuel, so unable to plug in does not affect their schedule. Whereas unable to plug in in pure battery EV will mean they need to stop mid-journey to rapid charge, making journey time longer. 

 

So Richard is being nice to EV owners who can benefit the most from able to plug in. 

2 minutes ago, roottoot said:

Supermarkets and the Rule is no rules in the main and people seem to go by something a friend told a friend.   Elsewhere there might be signs, there often is not.  It is like the wild west out there. 

Makes sense, I have heard of people unplugging the charging car and swapping it to theirs before.

I guess you are living by the gentleman's code of getting out of the way for an EV user, kudos to you.

I am as well even though I do get called D1ck.    George. 

Just now, roottoot said:

I am as well even though I do get called D1ck.    George. 

As long as it's Biggus D1ckus, then all good

Ps. Some owners leave cars so that when charged the plug can be removed.  Tethered chargers.  An id3 luckily for me last month as there were 1 hour there after charging stopped and I had no range.   Kia Niro has a button at drivers knee to allow unplugging when charged. 

  • 3 months later...

Screenshot 2022-11-28 09.05.55.png

Screenshot 2022-11-28 09.10.26.png

Edited by toot

The UK government are not the greatest with due diligence.  They will throw tax payer money about as though it is confetti.   Thank you @lol-lol

Interesting.  http://scotiaexploration.com

 

 

 

Screenshot 2022-11-28 at 09.19.31.png

Edited by toot

  • 2 weeks later...
On 07/02/2022 at 11:45, toot said:

This is really too common with EV's and Plug In Hybrids and across manufacturers.

 

The Industry is going to have to address this so that people can leave EV's parked for more than just a couple of days.

They are too much bothering about gimmicks rather than pure usability. 

 

 

 

As I soon to be EV owner, maybe I should look to get one of the power pack things just in case, is 1200A peak 18000 mAh enough ?

Also can the 12v battery be left on a standard car trickle charger without issue ?

59 minutes ago, Mr Grump said:

 

As I soon to be EV owner, maybe I should look to get one of the power pack things just in case, is 1200A peak 18000 mAh enough ?

Also can the 12v battery be left on a standard car trickle charger without issue ?

I think it's car dependent. Hyundai and Leaf are prone to this problem. it's to do with 12v charging algorithm. 

 

For old cars like Leaf, it's basically replace ICE with battery, zero consideration to other systems. I recently gave my Leaf a 12v top-up using 12v charging from mains. When I connected it, it read 12.1v the car was unlocked but not started. After a charge cycle, it read 12.6v. This was the first time I've done it, the 12v battery is 3 years old. So it's reasonable to say Leaf isn't charging 12v sufficiently and charge inside the 12v is dropping slowly if not topped up. 

 

Recent Tesla's have got a new system. They have a tiny 12v li-on battery that is designed to last lifetime of the car. Whenever the car wakes up, the HV battery is connected to provide power. So the tiny 12v is only required to maintain a few W of standby power. Car periodically wakes up to top up 12v from HV battery. My Tesla has been sat untouched for 4 days so far as I WFH this week, shouldn't have any problem starting up. The downside is that IF one runs out of juice on the HV battery, the 12v cannot sustain car functionality and it will quickly discharge. For this reason I have a 12v booster pack just in case, because everything needs the screen. 

 

So to answer your question: 

- Any booster pack will do. Unlike ICE car, it does not need to provide cranking power, it only need to bring the voltage up for the car to close HV battery contactors. So the smallest capacity with low charge should still work. 

- If the EV's 12v battery is standard lead acid type, yes you can use any 12v charger. If it's li-on type, depends on the charger, must not use dumb trickle charger. 

Thank you, the car will be a Cupra Born, I have no idea what 12v battery it has.

 

My car will often sit for a week without being used, so a 12v booster may be a wise investment ?

 

Would it also be wise to do a low rate charge (10a or 16a instead of 32a) on the main battery every few days when not being used ?

Presumably 7 hours of 16a would use half the electricity of 7 hours of 32a ?

 

TBH found it odd when I heard EV have a 12v battery, I expected they would have a converter to run the standard electrics from the main one, maybe its more efficient to have a 12v battery being charged.

Edited by Mr Grump

VW MEB platform owners should be able to chip in on vehicle specifics. I've not read about 12v problems on MEB platform, so far. 

 

For HV Li-on battery, if sitting unused for a long time, it's generally best to keep Li-on charge level at around 50% if possible (at 3.7v per cell). Storing at 100% for days stresses the battery causing more degradation, same at 0%. Generally speaking storing Li-on battery between 30-80% will be fine. 

 

I've no idea what VW manual will say for care of their battery. But Tesla manual differs to Nissan's. 

Nissan: we offer "long life" mode to charge to 80%, no mention of long term storage. Leaf doesn't connect the HV battery unless the car is "started", so it will happily sit for months. 

Tesla: set charge limit to "daily" (50-90%) and leave it plugged in. Tesla will use HV battery to top up 12v and heat/cool the battery to maintain temperature, so need external support if unused for many months. 

The power rating of charge point will not matter. The important thing for modern EV is that it can draw from external source to maintain its charge levels. A well designed car knows what is  best for itself. 

 

I've parked up for 2 months on the Leaf without problem, at 50%, no % loss for charge level. For Tesla longest was 10 days not plugged in at a car park as we went on holiday in October. Dropped a few % on the HV battery. I think leaving it not plugged in up to 3 months is absolutely fine. 

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