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Long range EVs
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dpack

Joined: 02 Jul 2005
Posts: 43919
Location: yes

Posted: Mon Apr 07, 25 2:57 pm Post subject:
muskie is scared of and challenged by them being better than him at making stuff(the money is irrelevant by now) BYD etc are his emotional problem far more than an economic one trump is arserelevant, old man doing beard for the players just a name on a brand

jema
Downsizer Moderator

Joined: 28 Oct 2004
Posts: 28271
Location: escaped from Swindon

Posted: Tue Apr 08, 25 6:20 am Post subject:

Nicky cigreen wrote:

jema wrote:

Did the trip to see Amipest, a journey that strikes me as a pain in a typical EV, but because the M3 has a closure we took a longer route back via M40, M4 and A34 unlike the M3 route where services are a pain, this route has I think 5 motorway services.
So it does come down to how much does it matter if it's not a trip being done that often?

I think you are right, it probably doesn't matter if it isn't something that you need to deal with very often. Out of curiosity, how far were you travelling, how often did you have to stop to recharge? and how long did each stop have to take for a recharge?

near me a site that once was a little chef has become one of the largest charging stations in the county, and the shop is a farm shop with cafe - it's become a popular stopping point.

I don't actually have an EV, but pretend I do on long journeys. Mostly the hypothetical EV wins on time because it would start full.
this trip is designed to be awful for EVs. But still is only more inconvenient in that I would have to take the pain of stopping on the journey day.

Nicky cigreen

Joined: 25 Jun 2007
Posts: 9933
Location: Devon, uk

Posted: Tue Apr 08, 25 9:19 am Post subject:

jema wrote:

Nicky cigreen wrote:

jema wrote:

oh, I thought you had a nissan leaf - I wonder who i was thinking of then.

A useful exercise then.

I think an enforced stop isn't a terrible thing, we just need to adjust to accepting it.

gz

Joined: 23 Jan 2009
Posts: 9088
Location: Ayrshire, Scotland

Posted: Wed Apr 09, 25 2:09 pm Post subject:
An enforced stop is brilliant...too many drive for too long at a time

jema
Downsizer Moderator

Joined: 28 Oct 2004
Posts: 28271
Location: escaped from Swindon

Posted: Sun Apr 13, 25 5:00 pm Post subject:

Battery claims
The following link is to the complete list of claims I have been compiling.

https://martindavidwalker.blogspot.com/2024/09/battery-claims.html

The new claims in the last week are as follows.
April 11th 2025, 500% faster charging time in cold conditions
Lab claims a simple production change could radically improve charging times in cold weather.
https://www.topgear.com/car-news/electric/researchers-have-improved-ev-charging-cold-conditions-500-cent

dpack

Joined: 02 Jul 2005
Posts: 43919
Location: yes

Posted: Mon Apr 14, 25 9:51 am Post subject:

are batteries following the Moores Law curve?

in the last couple of years they feel to have improved faster than pooters did

the rate of increase in capacity from for example "bomb" to "deep blue" was not as fast as from lead acid to mass production this gen's rechargeable

the car adverts use "test bed" range results, since they started mentioning them they have gone up rather rapidly
they will not reflect the real world of road conditions and driving styles but they are a like for like comparison over time

some "reasonably price cars" are claiming over 500mpc, only a couple of years ago 130mpc was a bold sales brag

MPC, can i copyright mark it? no come across it as an abreviation to replace MPG(or GPM for muscle cars and tanks)

jema
Downsizer Moderator

Joined: 28 Oct 2004
Posts: 28271
Location: escaped from Swindon

Posted: Tue Apr 15, 25 6:39 am Post subject:
It's much slower than Moores law. probably less than 5% a year. but it depends a bit on what is being tracked. 5% might be the number on energy density. but factor in cost, safety, cycle life and the improvements are far greater.

Mistress Rose

Joined: 21 Jul 2011
Posts: 16306

Posted: Tue Apr 15, 25 7:51 am Post subject:
Batteries have been the weak link in the solar renewable chain for some time. Claims, particularly by US companies are frequently rather wishful rather than actual, but batteries are improving a great deal and relatively fast.

dpack

Joined: 02 Jul 2005
Posts: 43919
Location: yes

Posted: Tue Apr 15, 25 11:44 am Post subject:
thanks

jema
Downsizer Moderator

Joined: 28 Oct 2004
Posts: 28271
Location: escaped from Swindon

Posted: Sun Apr 20, 25 2:36 pm Post subject:

Battery claims
The following link is to the complete list of claims I have been compiling.

https://martindavidwalker.blogspot.com/2024/09/battery-claims.html

The new claims in the last week are as follows.
April 19th 2025, Nakai university achieve safer high energy density 18650 batteries
In a process claimed to be compatible with existing manufacturing, they say they have achieved between 250 - 283wh/kg in a virtually non inflammable lithium metal battery.
The batteries also claim a long life cycle.
https://www.eurekalert.org/news-releases/1080843
April 18th 2025, General Motors battery production overtakes Tesla
GM is going all in on batteries in partnership with LG, though reported costs are still in excess of $100 kwh, I have seen much lower Chinese costs. It really begs the question what does that cost really mean? These are massive investments and as such there's a big difference between the true cost and the so called marginal cost of each cell coming off a production line.
There's some talk about the next stage being space and weight saving prismatic batteries, but perhaps a takeaway is that in house production of any reasonably competitive battery is probably good enough.

https://insideevs.com/news/756701/general-motors-ev-battery-production-overtakes-tesla/

Slim

Joined: 05 Mar 2006
Posts: 6683
Location: New England (In the US of A)

Posted: Sat Apr 26, 25 11:09 am Post subject:
Not looking particularly long range, but a small startup is finally advertising an EV truck that makes sense to me. $25,000 base model. Similar to model T, you can get it in any color, as long as it's gray. US rebate incentive would knock $7.5 off of that price if it can survive Trump Not sure how much more, but there will apparently be a range extender add on battery available

dpack

Joined: 02 Jul 2005
Posts: 43919
Location: yes

Posted: Sat Apr 26, 25 12:09 pm Post subject:

not a truck , a panel van

all electric ford transit, good enough for dhl round here, multiple body configurations, clean quiet and dhl will have done the maths on ev vs fossil

old transits were, or could be made, quite off road depending on type

the old low cc ones were better with a "used" but powerful sierra engine dropped in the hole(they fitted easily), better torque for heavy loads in traffic and 30% lower fuel use for oozingly gently driven long runs

this one is a bit silly but the pickup bit is rather good

i recon battery and motor upgrades are probably wise for a work vehicle or rough riding through the boonies for leisure and getting home again

Ty Gwyn

Joined: 22 Sep 2010
Posts: 4618
Location: Lampeter

Posted: Sat Apr 26, 25 8:59 pm Post subject:
Presume you mean the 2.3 Peugeot engine in the Sierra,economical and a good work horse.

dpack

Joined: 02 Jul 2005
Posts: 43919
Location: yes

Posted: Sun Apr 27, 25 9:11 am Post subject:
i lost track of rat rod details ages ago one my chum used might have been a cossy upgrade, it did have fancy bits around the lump that one was a bit daft 2.3 pug seems reasonable for day van

jema
Downsizer Moderator

Joined: 28 Oct 2004
Posts: 28271
Location: escaped from Swindon

Posted: Sun Apr 27, 25 3:51 pm Post subject:

Battery claims
The following link is to the complete list of claims I have been compiling.

https://martindavidwalker.blogspot.com/2024/09/battery-claims.html

The new claims in the last week are as follows.

April 25th 2025, Narada power launches solid state battery for grid storage
The energy density is LFP equivalent so this in the holy grail type of solid-state battery people want to see happen.
https://www.ess-news.com/2025/04/25/narada-power-launches-783-ah-cell-8-3-mwh-solid-state-battery/
April 24th 2025, Ford now has pilot production line for LMR batteries
These Lithium Manganese Rich batteries have better energy density to LFP batteries and are promised to be significantly cheaper than current mid-nickel batteries.
https://www.carscoops.com/2025/04/ford-develops-new-lmr-battery-for-future-evs/
April 24th 2025, Stellantis goes through production â€œhellâ€ with semi solid state
Their demonstration 375w/kg batteries were up to 30x more expensive to produce.
https://insideevs.com/news/757542/stellantis-factorial-solid-state-ev-battery/
April 23rd 2025, advances in synthetic graphene production
Graphene batteries one of those holy grail products promising everything whilst remaining more out of reach than solid-state batteries. I recall getting very fed up with one character spamming EV threads with the wonders of graphene batteries for what seemed like years. However it is occasionally good to realise that we are far from reaching the potential limits of batteries.

https://www.kth.se/en/om/nyheter/centrala-nyheter/for-graphene-sources-a-potential-green-alternative-to-mining-1.1388120
April 21st 2025, CATL to launch Sodium batteries at LFP energy densities
The new Naxtra brand will have 175whk energy density and should become cheaper than LFP batteries .
https://www.reuters.com/technology/chinese-battery-maker-catl-launches-second-generation-fast-charging-battery-2025-04-21/

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