Wednesday, August 25th, 2021

Time	Event
12:45a	Apple Wins Patent For Dual-Display MacBook With Virtual Keyboard, Wireless Charging Capabilities The US Patent and Trademark Office has granted a patent to Apple for a dual-display MacBook with a virtual keyboard replacing the traditional keyboard and with the ability to wirelessly charge an iPhone. 9to5Mac reports: As reported by Patently Apple, this patent was submitted three years ago, and only now has Apple won it. With this patent, the company could take a radical path and get rid of a physical keyboard. The interesting thing about this application is that while rumors suggest that Apple will remove the only touchable interface on the MacBook Pro, the Touch Bar, this patent imagines a MacBook with no physical keyboard at all. Patently Apple says this virtual keyboard could be rearranged, swapping the position of the virtual keyboard and trackpad. With a virtual keyboard, Apple could bring gestures from iOS and iPadOS as well, such as pinch, zoom, slide to select, and more. In the patent, Apple says this MacBook includes biometric sensors, which we could interpret as Face ID, fingerprint sensors (aka Touch ID), and a wireless charger, which would be in the left down corner of the notebook. Read more of this story at Slashdot. (Comment on this)
10:00a	Dust-Sized Supercapacitor Packs the Same Voltage As a AAA Battery Scientists in Germany have developed what they say is the smallest microsupercapacitor in existence. It's smaller than a speck of dust, safe for use in the human body, and can deliver similar voltage to a AAA battery. Prior to this breakthrough, the smallest "biosupercapacitors" developed to date were 3mm^3. New Atlas reports: The construction starts with a stack of polymeric layers that are sandwiched together with a light-sensitive photo-resist material that acts as the current collector, a separator membrane, and electrodes made from an electrically conductive biocompatible polymer called PEDOT:PSS. This stack is placed on a wafer-thin surface that is subjected to high mechanical tension, which causes the various layers to detach in a highly controlled fashion and fold up origami-style into a nano-biosupercapacitor with a volume 0.001 mm^3, occupying less space than a grain of dust. These tubular biosupercapacitors are therefore 3,000 times smaller than those developed previously, but with a voltage roughly the same as an AAA battery (albeit with far lower actual current flow). These tiny devices were then placed in saline, blood plasma and blood, where they demonstrated an ability to successfully store energy. The biosupercapacitor proved particularly effective in blood, where it retained up to 70 percent of its capacity after 16 hours of operation. Another reason blood may be a suitable home for the team's biosupercapacitor is that the device works with inherent redox enzymatic reactions and living cells in the solution to supercharge its own charge storage reactions, boosting its performance by 40 percent. The team also subjected the device to the forces it might experience in blood vessels where flow and pressure fluctuate, by placing them in microfluidic channels, kind of like wind-tunnel testing for aerodynamics, where it stood up well. They also used three of the devices chained together to successfully power a tiny pH sensor, which could be placed in the blood vessels to measure pH and detect abnormalities that could be indicative of disease, such as a tumor growth. The findings have been published in the journal Nature Communications. Read more of this story at Slashdot. (Comment on this)
8:01p	Western Digital in Advanced Talks To Merge With Japan's Kioxia Holdings Western Digital is in advanced talks for a potential $20 billion stock merger with Japanese semiconductor firm Kioxia Holdings, the Wall Street Journal reported on Wednesday, citing people familiar with the matter. Reuters: The companies could reach an agreement as early as mid-September, and Western Digital Chief Executive Officer David Goeckeler would run the combined firm, the report said. The news sent Western Digital's shares up as much as 15% in afternoon trading to a market cap of $21.45 billion. Kioxia Holdings, the world's second-largest maker of flash memory chips, last year shelved plans for what would have been Japan's largest initial public offering in 2020. In June, however, financial magazine Diamond said the company was planning an IPO as early as September. Read more of this story at Slashdot. (Comment on this)
10:02p	Misaligned Factory Robot May Have Sparked Chevy Bolt Battery Fires An anonymous reader quotes a report from Ars Technica, written by Tim De Chant: GM announced last Friday that it was recalling every Chevrolet Bolt it had ever made, including the new electric utility vehicle model that debuted this year. After a string of fires affected Bolt models, the company traced the problem to two simultaneously occurring defects in the cars' LG Chem-made batteries. The automaker initially discovered the problem in batteries from one of LG's Korean plants, and it recalled cars with those cells last November. But then more Bolts caught fire, and other LG plants were ensnared in the investigation, spurring two expansions of the recall. The problem, GM said, has been traced to a torn anode tab and a folded separator. That's all GM has said so far. It hasn't said how widespread the defects are, nor has it said how, exactly, the fires started. But in what little information has been released, and in the timing of GM's recalls, there are clues. To decipher them, Ars spoke with Greg Less, technical director of the University of Michigan's Battery Lab. "What we're looking at is a perfect storm," Less said. The Bolt's battery packs are made up of pouch-type cells, which are essentially layers of cathodes, anodes, and separators that are flooded with liquid electrolyte and encased in a flexible polymer pouch. The torn anode tab, he said, would create a projection in what should be an otherwise flat battery. The projection brings the anode closer to the cathode. "And that would probably be OK if the separator was where it was supposed to be," he said. But in problematic Bolt batteries, the separator wasn't where it was supposed to be. Separators are placed between the anode and cathode to prevent the two electrodes from touching. A torn tab wouldn't necessarily be an issue on its own because the separator would prevent any projection from bridging the anode-cathode gap. In cells with a folded separator, though, the gap would be missing from at least part of the battery. If the anode bridges the gap, Less said, "you have a short, and it's all downhill from there." "It wouldn't surprise me if both defects are caused by the same thing," he added. "I would imagine that the separator must be folded at the edge near where the anode tab is at. What I'm guessing is that at some point during the handling of the cell, before it's fully packaged, some part of the robot machine is catching. The tab is catching, the separator is catching -- something is catching very infrequently so that it hasn't been noticed, and it's causing this damage." Read more of this story at Slashdot. (Comment on this)
10:40p	US PC Market Grows 17% In Q2 2021 As Notebook Popularity Booms According to analysts at Canalys, the PC market in the United States is booming. Sales in Q2 2021 have grown 17% with 36.8 million units shipped. "Notebooks and desktops led the way with a growth in shipments of 27% and 23% respectively compared to last year," reports ZDNet. From the report: HP was the leading company in the US, delivering more than 8 million devices to customers and dominating the Chromebook sector with a 42% market share. Apple suffered a 3% decline in devices shipped but still held on to the second place slot behind HP. Canalys noted that Apple was the only major PC manufacturer to see negative growth in Q2, due in no small part to waning consumer interest in iPads, according to the report. The company did see a 24% increase in notebook shipments thanks to recent success with the M1 chip. The rest of the list is rounded out by Samsung, which saw a 51% growth in shipments year over year while Lenovo and Dell posted 25% and 11% growth respectively in Q2. Canalys attributed Lenovo's success to its growing influence over the Chromebook market while Samsung solidified its place in the tablet market, seeing a growth of 19% in the US for Q2 even as the overall tablet market shrank. [Tablet shipments were down 1% in Q2.] Following a spike in tablet interest in Q2 2020, there has been a slowdown as the COVID-19 pandemic has waned and more people spent the summer outdoors. Read more of this story at Slashdot. (Comment on this)

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