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face_with_colon_three year 2022.


One of the biggest concerns about EVs is that the batteries will need replacing after a few years, at great expense. After all, your smartphone battery is likely to have seen better days within as little as three years. But a Tesla researcher is getting ready to kick this idea into touch once and for all, after demonstrating batteries that could potentially outlive most human beings.

Tesla enthusiasts are likely to have heard of Jeff Dahn already. He’s a professor at Dalhousie University and has been a research partner with Tesla since 2016. His focus has been to increase the energy density and lifetime of lithium-ion batteries, as well as reducing their cost. Dahn appears to have hit the motherload along with colleagues on his research team. In a paper published in the Journal of the Electrochemical Society, the group claims to have created a battery design that could last 100 years under the right conditions.

Dahn’s paper contrasts cells based on Li[Ni0.5Mn0.3Co0.2]O2 chemistry (“NMC 532”) to LiFePO4. The latter is the “Lithium Iron Phosphate” (aka LFP) chemistry that Tesla is currently using in Chinese-built standard Model 3 cars imported into Europe. The LFP chemistry has lower energy density than more widespread Lithium-Ion alternatives, but is cheaper, more durable, and allegedly safer, too. LFP can last up to 12,000 charge-discharge cycles, so beating it in this regard is no mean feat. Dahn’s NMC 532 cells showed no capacity loss after nearly 2,000 cycles. The paper extrapolates this out to imply a 100-year lifespan (they obviously haven’t been testing the battery that long).

CES has always been the place for weird, out-there gadgets to make their debuts, and this year’s show is no exception.

Skyted, a Toulouse, France-based startup founded by former Airbus VP Stéphane Hersen and acoustical engineer Frank Simon, is bringing what look like a pair of human muzzles to CES 2024. Called the “Mobility Privacy Mask” and “Hybrid Silent Mask,” the face-worn accoutrements are designed to “absorb voice frequencies” in noisy environments like plains, trains and rideshares, Hersen says.

“Skyted’s solution is ideal for commuters, business executives and travelers anywhere,” Hersen is quoted as saying in a press release. “No matter how busy or public the location is, they can now speak in silence and with the assurance that no one nearby can hear their conversation.”

Recent studies by Zampaloni et al. and Pahil et al. published in the journal Nature describe a novel method of inhibiting the growth of Gram-negative bacteria such as Acinetobacter using antibiotics consisting of macrocyclic peptides that target the bacterial protein bridge machinery that transports lipopolysaccharides from the cytoplasm to the outer membrane.

The amphipathic lipopolysaccharides in the outer leaflet of the asymmetric outer membrane bilayer of Gram-negative bacteria block antibiotic entry, making the treatment of bacterial infections involving Gram-negative bacteria difficult. Furthermore, the development of antibiotic resistance in bacteria, especially Gram-negative bacteria such as Acinetobacter baumannii, is a rapidly increasing global health concern since antibiotic-resistant bacterial infections are becoming increasingly common among hospitalized and critically ill patients.

The lipopolysaccharide is synthesized inside the bacterial cell in the inner membrane, transported across the cell membrane, and assembled in the outer leaflet. The transportation of lipopolysaccharides occurs with the help of LptB2FGC, a subcomplex in the inner membrane that enlists adenosine triphosphate (ATP) hydrolysis and a protein bridge to extract lipopolysaccharides from the inner membrane and transport it to the outer membrane. Targeting this transportation complex could effectively inhibit the lipopolysaccharide biosynthesis, making the Gram-negative bacteria susceptible to antibacterial activity.

The Cybertruck has only been out for a month, and in limited numbers, but some Tesla owners are already customizing their vehicles.

New Cybertrucks are getting colored wraps, window tints, and protective coverings. Joe Torbati, the owner of OCDetailing in Fremont, California, told Business Insider he’d received dozens of reachouts after posting a series of YouTube videos showing work he’d done for a new owner on their vehicle.

“We’ve probably been getting about 10 Cybertruck-related emails or contacts per day,” Torbati said. “Though, it’s not the traditional reason you would wrap a car, which would be to protect it — the point of this is more for just aesthetics,” he added.