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Tesla fait payer 2 000$ pour gagner une demi-seconde d’accélération sur le Model Y
Marie Turcan · news.movim.eu / Numerama · Monday, 28 September, 2020 - 08:59
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L'article Tesla fait payer 2 000$ pour gagner une demi-seconde d’accélération sur le Model Y est apparu en premier sur Numerama .
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Nikola patented a stolen truck design, Tesla claims in legal response
Timothy B. Lee · news.movim.eu / ArsTechnica · Thursday, 24 September, 2020 - 21:37
Nikola Chairman Trevor Milton unveils the Nikola One truck in December 2016. [credit: Nikola ]
Two years ago, hydrogen-truck startup Nikola sued Tesla claiming that the Tesla Semi was a knockoff of Nikola's own truck design. On Wednesday, Tesla filed a response in the case accusing Nikola of basing its own truck on a 2010 concept by designer Adriano Mudri. Mudri is now director of design at the Croatian automaker Rimac.
"Adriano Mudri is the designer of the Road Runner concept truck," Tesla writes in its legal filing. "The Road Runner concept truck was entered into the 2010 Michelin Design Challenge, and was selected for display at the 2010 North American International Auto Show."
According to Tesla, Nikola founder Trevor Milton met with Mudri "during 2014 and/or 2015." Tesla says that Milton knew about the Road Runner concept truck at the time he applied for the design patents Nikola later used to sue Tesla and that Mudri's design "constituted a significant inventive contribution" to the designs Nikola patented.
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Here’s what Tesla will put in its new batteries
Scott K. Johnson · news.movim.eu / ArsTechnica · Thursday, 24 September, 2020 - 14:25 · 1 minute
Enlarge / Gaze upon Tesla's new battery cell, but don't despair. (credit: Aurich Lawson / Tesla / Getty Images)
Tesla’s “battery day” Tuesday revealed a surprising amount of information about projects the company has kept under wraps. The presentation described changes and improvements to just about every aspect of its battery packs, with big-picture implications for the claim that a $25,000 Tesla vehicle would be possible in about three years. (See the previous coverage from Ars’ Timothy Lee for more on that.) But it wouldn’t be a Tesla announcement without vague timelines, and it was a little unclear which improvements are ready to go now—and which ones they’re just expecting to succeed in the next couple of years.
Without specific numbers or concrete details, assessing the announcements takes a little guesswork. But we can compare all this to other industry trends and to published research to get some idea.
Let’s start with two things Tesla claimed already exist at its pilot production plant: its new cell design and some improvements in manufacturing. Tesla got off the ground using existing and commonly available cylindrical 18650 lithium-ion cells, while most EVs have been built with flat pouch or prismatic cells (more like the thin batteries in phones and laptops). In a cylindrical cell, long sheet-like anodes, separators, and cathodes are sandwiched, rolled up, and packed into a cylinder-shaped can. The cathode and anode sheets each have one skinny “tab” that connects to the positive and negative terminals of the battery can.
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How Tesla plans to make batteries cheap enough for a $25,000 car
Timothy B. Lee · news.movim.eu / ArsTechnica · Wednesday, 23 September, 2020 - 16:20
Enlarge (credit: Aurich Lawson / Getty Images)
Tesla's business model depends on continuous improvements in the cost and energy density of batteries. When Tesla was founded in 2003, it was barely possible to build a battery-powered sports car with a six-figure price tag. Over the next 15 years, cheaper and more powerful batteries enabled Tesla to build roomier cars with longer ranges at lower prices.
Tesla expects that progress to continue—and maybe even accelerate—in the next few years. And it isn't waiting for other companies to come up with better battery designs. In recent years, Tesla has had a large team of engineers re-thinking every aspect of Tesla's batteries, from the chemistry inside the cells to the way the batteries are incorporated into vehicles.
At a much-touted Tuesday event, Tesla pulled back the curtain on a suite of improvements the company hopes to roll out in the next three years. In total, Tesla says that all of these innovations put together will enable a 56 percent reduction in the per-kWh cost of its batteries.
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Guide Tesla : tout comprendre aux gammes Model 3, Model Y, Model S et Model X
Maxime Claudel · news.movim.eu / Numerama · Wednesday, 23 September, 2020 - 09:49
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L'article Guide Tesla : tout comprendre aux gammes Model 3, Model Y, Model S et Model X est apparu en premier sur Numerama .
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Comment Tesla veut « révolutionner » la batterie
Maxime Claudel · news.movim.eu / Numerama · Wednesday, 23 September, 2020 - 09:43
Voitures, vélos, scooters... : la mobilité de demain se lit sur Vroom ! https://www.numerama.com/vroom/vroom//
L'article Comment Tesla veut « révolutionner » la batterie est apparu en premier sur Numerama .
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0 à 100 km/h en moins de 2,1 secondes : ok, la nouvelle Tesla Model S est vraiment rapide
Maxime Claudel · news.movim.eu / Numerama · Wednesday, 23 September, 2020 - 07:48
Voitures, vélos, scooters... : la mobilité de demain se lit sur Vroom ! https://www.numerama.com/vroom/vroom//
L'article 0 à 100 km/h en moins de 2,1 secondes : ok, la nouvelle Tesla Model S est vraiment rapide est apparu en premier sur Numerama .
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Tesla va lancer une voiture électrique à 25 000 dollars
Maxime Claudel · news.movim.eu / Numerama · Wednesday, 23 September, 2020 - 07:10
Voitures, vélos, scooters... : la mobilité de demain se lit sur Vroom ! https://www.numerama.com/vroom/vroom//
L'article Tesla va lancer une voiture électrique à 25 000 dollars est apparu en premier sur Numerama .
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The story of cheaper batteries, from smartphones to Teslas
Timothy B. Lee · news.movim.eu / ArsTechnica · Tuesday, 22 September, 2020 - 14:06
Enlarge (credit: Aurich Lawson / Getty)
At today's "Battery Day" event, Tesla is expected to unveil new technologies that will drive the company's products over the next decade. Ahead of the event, we thought readers would enjoy this article, first published in May, about Tesla's role in the falling cost of batteries over the last decade.
In 2010, a lithium-ion battery pack with 1 kWh of capacity—enough to power an electric car for three or four miles—cost more than $1,000. By 2019, the figure had fallen to $156, according to data compiled by BloombergNEF. That's a massive drop, and experts expect continued—though perhaps not as rapid—progress in the coming decade. Several forecasters project the average cost of a kilowatt-hour of lithium-ion battery capacity to fall below $100 by the mid-2020s.
That's the result of a virtuous circle where better, cheaper batteries expand the market, which in turn drives investments that produce further improvements in cost and performance. The trend is hugely significant because cheap batteries will be essential to shifting the world economy away from carbon-intensive energy sources like coal and gasoline.
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