Battery Electric Vehicle News / Enjoying the Transportation Revolution

Netexporter

michaels said:

tunnel said:

Interesting development with batteries
Gelion has now successfully achieved the energy density milestone of 402 Wh/Kg in a 12 Ah cell comprised of its GEN 3 semi-solid-state (see glossary) Li-S technology (see below for explanation of GEN 3 and semi-solid-state). The achieved energy density is 60-70% higher than current lithium-ion batteries (approximately 200-250 Wh/kg), meaning a single Gelion GEN 3 Li-S cell is over 60% lighter than a typical lithium-ion battery of the same energy.

Won't be long before i may consider a leccy car but not a chance in hell i'll swap my gas guzzling 900cc motorbike  

Isn't there a density number needed for aviation?

500, IIRC, so getting close.

Martyn1981

Netexporter said:

michaels said:

tunnel said:

Interesting development with batteries
Gelion has now successfully achieved the energy density milestone of 402 Wh/Kg in a 12 Ah cell comprised of its GEN 3 semi-solid-state (see glossary) Li-S technology (see below for explanation of GEN 3 and semi-solid-state). The achieved energy density is 60-70% higher than current lithium-ion batteries (approximately 200-250 Wh/kg), meaning a single Gelion GEN 3 Li-S cell is over 60% lighter than a typical lithium-ion battery of the same energy.

Won't be long before i may consider a leccy car but not a chance in hell i'll swap my gas guzzling 900cc motorbike  

Isn't there a density number needed for aviation?

500, IIRC, so getting close.

Pretty sure I've seen 500 being suggested too. I think Elon said about 500Wh/kg for short flights (upto 500 miles), and then 1,000 miles for about 20% more density, so around 600Wh/kg, as the longer flight still only has the one energy intensive climb.

Obviously this is about being viable economically, as shorter flights for other roles are possible. Much more energy dense batts already exist but are extremely expensive for specialised roles.

At 500 miles, that would cover many internal / short haul flights around the World. So very promising.

Martyn1981

Thought it worth posting this article. Costa Rica is a very small car market, with peak sales of about 60k pa. But cheap Chinese BEV's are making a mark with around 25% of sales, as 2024 takes off.

The relatively small numbers may not rock the boat individually, but show what could happen (all over the World) as markets with small car ownership, no auto industry, and no oil production, see the benefits of going leccy. Costa Rica leccy is ~99% RE.

Costa Rica EV Sales Report: Latin America’s Champion Surpasses All Expectations in July as ¼ of Market Becomes Fully Electric in July

Seven months ago, I wrote this: If January is to be an indicator, 2024 will also bring great growth to Costa Rica’s EV market, but it’s hard to predict where it will end. One can hope for 25% market share, but I feel somewhere around 17% is more plausible. Time will tell! (That’s from the 2023 LatAm EV sales report.)

I’m here to update on that prediction. As months have passed, growth has accelerated not only year on year, but also month on month: this means yearly market share for the first six months of the year already crossed 15% and keeps rising.

Now, if we were limited to June’s data, this would be it, and my prediction wouldn’t be too far off. But the country seems to have “pulled a Uruguay” in July, with 197% growth YoY from an already very high base level, surpassing my hyper-optimistic 25% market share prediction for the month!

Based upon these two reasonable assumptions, total market share for July reached 27%, higher than my upper expectations, bringing the yearly number to 16–17%. Another way of seeing it is that Costa Rica’s EV sales in the first seven months of 2024 are already 10% higher than during the entire 2023. If you guys remember our report from 2023, that year Costa Rica had 11.7% BEV market share.

Like Uruguay, Costa Rica has relatively expensive gasoline (at around $5 a gallon), lacks oil reserves, and produces plentiful, affordable renewable energy. This means that replacing foreign oil for local electricity makes a lot of sense for the country.

Martyn1981

Yet another specialist role being addressed. Pure coincidence but watched a few vids on the weekend about a specialist heavy duty electric truck being built for US/Canada forestry roles.

World’s 1st Electric Timber Truck with Crane Takes Sustainable Forestry to the Next Level

The forestry industry just saw a major leap towards sustainability with the debut of the world’s first electric timber truck equipped with a crane. Unveiled in Sweden at the Elmia Lastbil fair, this cutting-edge vehicle is the result of a collaboration between SCA and Scania. It’s set to revolutionize timber collection by transporting logs directly from forests to terminals — all with zero emissions.

“With this new truck, SCA is pushing the envelope on sustainable timber transport. The positive feedback at Elmia has been overwhelming,” says Anton Ahlinder, business developer at SCA Skog.

Martyn1981

So we've had BEV tugs to dock ships, recently BEV tugs to move aircraft, pretty sure (years ago) there was mention of BEV tug planes to launch gliders, and now sticking with the theme here are tug trucks. [Yes, I'm stretching the term   though I think I've heard the term used for dockside container trucks.]

If I'm reading the charging paragraph(s) correctly, then there may be a small excess of vehicles, and/or perhaps there are peaks and troughs.

Battery-Electric Terminal Trucks Deployed in Western Australia

In an Australian first, Patrick Terminals has deployed nine battery-electric terminal trucks (BEV-TTs) at the Port of Fremantle, Western Australia. This is described as the initial phase of their electrification project. It appears that there is more to come!

The commissioning of nine BEV-TTs is a big step in that direction. Patrick’s recent report on lessons learned, Patrick Terminals Charge Ahead, details how 9 cutting-edge BEV-TTs, fast charging infrastructure, and an advanced fleet power management system have replaced 8 traditional diesel trucks in the first six months of this year.

I was particularly curious about how charging was managed. They added: “Patrick has developed a fleet management software application. The Internal Transfer Vehicles (ITV) periodically report back their state of charge to a central server-based application. When an ITV requires charging, an alert is sent by the fleet management software to the ITV which is displayed on the tablet. The alert requests the driver to return to the charging station, commence charging and swap to another (100% charged) vehicle.”

Netexporter

 there was mention of BEV tug planes to launch gliders

As a former operator of a diesel winch, for launching gliders, I hope the more go-ahead clubs are using using electric winches, these days.

Magnitio

Netexporter said:

 there was mention of BEV tug planes to launch gliders

As a former operator of a diesel winch, for launching gliders, I hope the more go-ahead clubs are using using electric winches, these days.

Or "self-launching" gliders

https://elfin.aero/

Martyn1981

Now I think about it, not only are there electric tow planes for launching gliders, but in Canada some small fleets of aircraft that carry out short range roles, such as float planes and puddle-jumpers are converting over to BEV.

Brave new World.

Coastalwatch

Martyn1981 said:

Now I think about it, not only are there electric tow planes for launching gliders, but in Canada some small fleets of aircraft that carry out short range roles, such as float planes and puddle-jumpers are converting over to BEV.

Brave new World.

Cheers Mart, Brave new world indeed.

These posts on launching gliders etc utilsing winches takes me back to a video of somewhere in Africa where they are delivering much needed medical supplies via drones due to poor road networks and the urgency of delivery. There they were launching by catapult and gaining around twice the range simply by getting them in the air and upto speed.

I keep wondering if this couldn't be applied to full scale light aircraft to boost range etc. Surely already adopted for use similar to the launch system on aircraft carriers.

Netexporter

Winches are OK for gliders and jets but propellers and cables don't really mix.