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Archive for the ‘transportation’ category: Page 237

Aug 31, 2021

Cheap Electric Motorcycles, EVs Will Kill Some Hobbies, Tesla Model 3 & Y Get LFP Batteries 20

Posted by in categories: sustainability, transportation

In the past week, CleanTechnica readers were most attracted to stories about cool & cheap electric motorcycles, an Australian pastime that electric vehicles are sure to kill, and the standard-range Tesla Model 3 and Model Y getting LFP batteries. Following those medal winners, the BYD Dolphin potentially getting millions of sales, love for water batteries, and solar-powered trains took the next three spots.

For the details on those stories, to see the rest of the top 20 list, or to go explore the sometimes wild and crazy (but almost always useful) comments under the pieces, scroll down and have a gander.

Aug 31, 2021

Microchip Shortage Update: Car Inventories Could Stay Low All Next Year

Posted by in categories: computing, transportation

A global microchip shortage has kept car prices high all year. Now, chip manufacturers are warning that it may not get better next year.

Aug 30, 2021

Analysts name the chip stocks set to pop on the electric vehicle boom

Posted by in categories: computing, sustainability, transportation

Firms that make chips for cars are set to see big benefits if electric car sales continue rise. Here are some of Goldman, UBS and Morgan Stanley’s stock picks.

Aug 30, 2021

Fundamental mechanics help increase battery storage capacity and lifespan

Posted by in categories: bioengineering, energy, physics, sustainability, transportation

Batteries are widely used in everyday applications like powering electric vehicles, electronic gadgets and are promising candidates for sustainable energy storage. However, as you’ve likely noticed with daily charging of batteries, their functionality drops off over time. Eventually, we need to replace these batteries, which is not only expensive but also depletes the rare earth elements used in making them.

A key factor in life reduction is the degradation of a battery’s structural integrity. To discourage structural degradation, a team of researchers from USC Viterbi School of Engineering are hoping to introduce “stretch” into battery materials so they can be cycled repeatedly without structural fatigue. This research was led by Ananya Renuka-Balakrishna, WiSE Gabilan Assistant Professor of Aerospace and Mechanical Engineering, and USC Viterbi Ph.D candidate, Delin Zhang, as well as Brown University researchers from Professor Brian Sheldon’s group. Their work was published in the Journal of Mechanics and Physics of Solids.

A typical battery works through a repetitive cycle of inserting and extracting Li-ions from electrodes, Zhang said. This insertion and extraction expands and compresses the lattices. These volume shifts create microcracks, fractures and defects over time.

Aug 28, 2021

Aptera opens orders on 1,000-mile solar EV that never needs charging

Posted by in categories: solar power, sustainability, transportation

Circa 2020


Since electric vehicles first started hitting the mainstream, people have been asking “why doesn’t that have a solar panel roof?” The answer has always been the same: solar panels just don’t generate that much power. That’s not a huge problem for solar racers, with their ultra-light weight and super-aerodynamic shapes, but for the minuscule daily range a solar roof would give you on your typical daily driver, you’re still gonna need to plug it in.

Ah, but what if your daily driver was the closest thing on the road to a solar racer? An EV truly designed with ludicrous levels of efficiency as the primary goal? Something so aerodynamically slippery that it makes a mockery of the production car world? Well, that’s the Aptera. And its manufacturers claim that its 180 small solar panels, making up an area of more than three square meters (32.3 sq ft), will harvest enough energy that many drivers will never have to charge it.

Continue reading “Aptera opens orders on 1,000-mile solar EV that never needs charging” »

Aug 28, 2021

Tesla Will Spark Controversy (Again) Next Month

Posted by in categories: Elon Musk, robotics/AI, transportation

Tesla may be the world’s most valuable automaker but it’s also under a federal investigation over its Autopilot semi-autonomous driving system. Teslas with Autopilot engaged have crashed into police cars and emergency vehicles parked on the side of the road and the National Highway Transportation and Safety Administration (NHTSA) understandably wants to know what’s going on.

On top of this, a pair of US Senators are demanding another investigation over the Autopilot name itself, claiming it’s misleading. Bear in mind Autopilot is rated at only Level 2 whereas Level 5 autonomy requires zero human input. Far too many Tesla owners don’t seem to understand that, hence the Senators’ concerns. And now Elon Musk has confirmed the next stage of the Full Self-Driving Beta will arrive soon.

Aug 28, 2021

Virgin Hyperloop unveils new design concept for the Hyperloop

Posted by in categories: sustainability, transportation

It says the new form of transportation is faster, safer, cheaper, and more sustainable than existing modes.

Aug 28, 2021

Tesla Model Y pre-production units start rolling out in Giga Texas

Posted by in categories: sustainability, transportation

When Gigafactory Texas was starting its construction, officials in the area started to fondly describe the project’s pace as the “Speed of Elon” on account of its rapid progress. This “Speed of Elon” seems to have never let up since Giga Texas broke ground about 13 months ago as the first image of a pre-production Tesla Model Y was just shared online.

The image was initially shared on Instagram, and it depicted a black Model Y that looked fresh out of the production line. The post was eventually deleted, but not before the image was shared across platforms such as Twitter and Reddit. It’s difficult not to be excited, after all, considering that Giga Texas broke ground just over a year ago in July 2020.

Based on the recently-shared image, it appears that Giga Texas’ Model Y production facility is now ready to start cranking out the all-electric crossovers, at least to some degree. The vehicle was not alone in the picture either, as another Model Y in the background could also be seen passing through the assembly line.

Aug 28, 2021

Tesla’s 4680 battery cell pilot production line hits 70–80% yield: report

Posted by in categories: Elon Musk, energy, sustainability, transportation

Tesla has a number of programs that have the potential to change markets, and one of these is arguably the 4,680 cells. Created using a dry electrode process and optimized for price and efficiency, the 4,680 batteries could very well be the key to Tesla’s possible invasion of the mainstream auto and energy market. If Tesla pulls off its 4,680 production ramp, its place at the summit of the sustainable energy market would be all but ensured.

Unfortunately, Tesla’s publicly disclosed target for the 4,680 cells’ production ramp appears to have been made on “Elon Time.” This means that during Battery Day last year, Tesla’s target of hitting a capacity of 10 GWh by late September2021included some optimistic assumptions. Similar to other projects like Elon Musk’s Alien Dreadnaught factory, however, the pilot production of the 4,680 cells have met some challenges.

Tesla admitted to these difficulties during the Q22021earnings call, when Elon Musk explained that one of the main challenges in the 4,680 cell production ramp was related to the batteries’ calendaring, or the process when the dry cathode material is squashed to a particular height. Partly due to the use of nickel in the 4,680 cells, which are extremely hard, some of the calendar rolls end up being dented.

Aug 28, 2021

An ‘Uncrashable’ Car? Luminar Says Its Lidar Can Get There

Posted by in categories: robotics/AI, transportation

As a recent New York Times article highlighted, self-driving cars are taking longer to come to market than many experts initially predicted. Automated vehicles where riders can sit back, relax, and be delivered to their destinations without having to watch the road are continuously relegated to the “not-too-distant future.”

There’s not just debate on when this driverless future will arrive, there’s also a lack of consensus on how we’ll get there, that is, which technologies are most efficient, safe, and scalable to take us from human-driven to computer-driven (Tesla is the main outlier in this debate). The big players are lidar, cameras, ultrasonic sensors, and radar. Last week, one lidar maker showcased some new technology that it believes will tip the scales.

Continue reading “An ‘Uncrashable’ Car? Luminar Says Its Lidar Can Get There” »