Battery Electric Vehicle News / Enjoying the Transportation Revolution

Grumpy_chap

Ami isn't a car

Twizzy appears to be discontinued - not on the Renault website today.

Neither fulfill the brief of being a proper car, which was the context of the question "electric car for £10k" range 50 miles

JKenH

A New Silicone Battery That Beats Tesla Two to One in Energy Density Hits the Market

The potential exists here for significantly longer range EVs, if that is what the market requires.

Amprius Technologies is a Fremont-based battery specialist that recently delivered its first batch of commercially available lithium-ion cells. These use a special silicone nanowire cathode to improve energy density up to 450 Wh/kg, which at the moment is the highest in any commercially available battery.

To put things into perspective, Tesla’s Li-Ion battery offers an energy density of 260 Wh/kg and is considered one of the best in the industry.

https://www.autoevolution.com/news/a-new-silicone-battery-that-beats-tesla-two-to-one-in-energy-density-hits-the-market-181814.html

JKenH

InstaVolt responds to continued rise in wholesale energy costs

London, 16th February 2022 – As a consequence of the continued rise in wholesale energy costs, InstaVolt is announcing a price increase across all chargers from 45p/kWh to 50p/kWh with effect from 22 February 2022.

https://instavolt.co.uk/instavolt-responds-to-continued-rise-in-wholesale-energy-costs-16-february-2022/

ABrass

JKenH said:

A New Silicone Battery That Beats Tesla Two to One in Energy Density Hits the Market

The potential exists here for significantly longer range EVs, if that is what the market requires.

Amprius Technologies is a Fremont-based battery specialist that recently delivered its first batch of commercially available lithium-ion cells. These use a special silicone nanowire cathode to improve energy density up to 450 Wh/kg, which at the moment is the highest in any commercially available battery.

To put things into perspective, Tesla’s Li-Ion battery offers an energy density of 260 Wh/kg and is considered one of the best in the industry.

https://www.autoevolution.com/news/a-new-silicone-battery-that-beats-tesla-two-to-one-in-energy-density-hits-the-market-181814.html

At the moment, Amprius is working hard to achieve mass production of its cells, with a major ramp-up expected in 2024. 

Sounds good, but it seems they're still in the tiny boutique market.

michaels

ABrass said:

JKenH said:

A New Silicone Battery That Beats Tesla Two to One in Energy Density Hits the Market

The potential exists here for significantly longer range EVs, if that is what the market requires.

Amprius Technologies is a Fremont-based battery specialist that recently delivered its first batch of commercially available lithium-ion cells. These use a special silicone nanowire cathode to improve energy density up to 450 Wh/kg, which at the moment is the highest in any commercially available battery.

To put things into perspective, Tesla’s Li-Ion battery offers an energy density of 260 Wh/kg and is considered one of the best in the industry.

https://www.autoevolution.com/news/a-new-silicone-battery-that-beats-tesla-two-to-one-in-energy-density-hits-the-market-181814.html

At the moment, Amprius is working hard to achieve mass production of its cells, with a major ramp-up expected in 2024. 

Sounds good, but it seems they're still in the tiny boutique market.

Isn't there a certain density that is thought to be necessary to support aviation? Can anyone remember what this is?

Martyn1981

michaels said:

ABrass said:

JKenH said:

A New Silicone Battery That Beats Tesla Two to One in Energy Density Hits the Market

The potential exists here for significantly longer range EVs, if that is what the market requires.

Amprius Technologies is a Fremont-based battery specialist that recently delivered its first batch of commercially available lithium-ion cells. These use a special silicone nanowire cathode to improve energy density up to 450 Wh/kg, which at the moment is the highest in any commercially available battery.

To put things into perspective, Tesla’s Li-Ion battery offers an energy density of 260 Wh/kg and is considered one of the best in the industry.

https://www.autoevolution.com/news/a-new-silicone-battery-that-beats-tesla-two-to-one-in-energy-density-hits-the-market-181814.html

At the moment, Amprius is working hard to achieve mass production of its cells, with a major ramp-up expected in 2024. 

Sounds good, but it seems they're still in the tiny boutique market.

Isn't there a certain density that is thought to be necessary to support aviation? Can anyone remember what this is?

I think Elon suggested 400Wh/kg, and went on to say a further 20% improvement would double aircraft range as the same amount of energy is needed to reach height, so the extra would give increased range.

shinytop

Interesting discussion here

https://www.businessinsider.com/electric-planes-future-of-aviation-problems-regulations-2020-3?r=US&IR=T

Aviation fuel is 12,000 Wh per kg.  They are suggesting 800 as a minimum.  But unlike cars, where EVs are just  FFVs with a different engine, aviation is going to need a bit of real innovation.  A lot more, smaller aircraft, automation, etc.  And an acceptance that combustion engines are part of the solution because batteries are going to have to be orders of magnitude better than now to power a long haul flight.  I'm betting on fusion or dilithium crystals getting there first.

JKenH

shinytop said:

Interesting discussion here

https://www.businessinsider.com/electric-planes-future-of-aviation-problems-regulations-2020-3?r=US&IR=T

Aviation fuel is 12,000 Wh per kg.  They are suggesting 800 as a minimum.  But unlike cars, where EVs are just  FFVs with a different engine, aviation is going to need a bit of real innovation.  A lot more, smaller aircraft, automation, etc.  And an acceptance that combustion engines are part of the solution because batteries are going to have to be orders of magnitude better than now to power a long haul flight.  I'm betting on fusion or dilithium crystals getting there first.

Rolls-Royce electric passenger plane to take flight by 2025

Rolls Royce think it can be done.

Rolls-Royce is racing to launch an electric passenger plane by 2025, a year earlier than had been expected, as it accelerates its efforts to replace traditional jet engines.

https://www.telegraph.co.uk/business/2022/02/14/rolls-royce-electric-passenger-plane-take-flight-2025/

Martyn1981

And we have a new winner for most efficient BEV on the market, and it's ....... drum roll ......... every vehicle that's not a Hummer.

So congrats to everyone except the owners of new Hummers, that's one big beastie, with an EPA rating of about 1.55 miles/kWh.

Maybe I should get one and pretend I'm cool.

2022 GMC Hummer EV EPA Documents Reveal MPGe, Weight, Other Details

The document shows that the Edition 1 model, the only version available at launch, has an Ultium battery with a usable capacity of 212.7 kWh, which is significantly larger than the Ford F-150 Lightning's available 131.0-kWh Extended Range battery pack and the Rivian R1T's 128.9-kWh lithium-ion battery. According to the EPA filings, the Hummer will achieve a 329-mile EPA combined range, consuming electricity at 47 MPGe EPA combined, some 33 percent less than the Rivian's 70-MPGe rating.

Obviously weight is a huge factor, and we now know a few more details about that, too. The big battery pack alone weighs 2923 pounds, almost as much as an entire Honda Civic. GMC reports in the EPA document a curb weight of 9063 pounds, which is nearly 2000 pounds heavier than the Rivian R1T Launch Edition we just tested.

The data also shows a battery capacity of 617 amp-hours. Multiplied by its 400-volt operating voltage, that yields 246.8 kWh, which should equate with the double-stacked pack's gross capacity.

Martyn1981

Couple of short articles, but both covering the subject of BEV trucks and EU legislation. One on emission standards, and the other on reduced tolls (50%+) from 2023. [Interestingly, the toll reduction can be managed by increasing FF tolls, which I assume is to maintain toll revenues as BEV truck numbers increase, cool plan.]

Talk about carrot and stick, this should accelerate both production and demand by boosting confidence just at the point in time when they are starting to trickle out ........ I smell another 'S' curve, and possibly a supercharged Osborne Effect on current diesel sales?

Green Trucking Watershed Moment As EU Adopts New Tolling Rules

Green Trucking: By May 2023, hauliers operating zero-emissions trucks must be given discounts of at least 50% on road tolls.

EU member states have until 2023 to implement a new system of road tolls which give big incentives for zero-emissions trucks after MEPs voted to adopt new legislation today. Transport & Environment (T&E) hailed the updated Eurovignette law as a watershed for green trucking which will benefit the climate, air quality and hauliers, but it called on member states to start work on its implementation immediately.

Why The Future Of Long-Haul Trucking Is Battery Electric

In a factsheet, T&E examines the progress to reaching zero emissions in the freight sector and shows how EU truck CO2 standards can make or break the transition. (Download the factsheet.)

There is increasing consensus among European truck manufacturers and industry stakeholders that battery electric trucks will play a dominant role in the decarbonisation of the road freight sector, including for long-haul. With trucks being heavily used capital goods, the advantage of battery electric vehicles in terms of lower fuel and maintenance costs grows with increasing mileage, making them particularly competitive for long-haul transport.

Ambitious CO2 standards in the upcoming revision can create the necessary market certainty to enable truckmakers to scale up their production of zero-emission trucks and for logistics companies to transition their fleets to zero emission. To find out more, download the factsheet.

Worth reading the factsheet, which has some crossover with the first linked article, and is stuffed with info.