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Donut Lab's 'Solid-State' Battery Exposed As Regular Li-Ion

Slashdot
1 week 5 days ago
A battery researcher's investigation, backed by more than 20 independent experts, claims Donut Lab's much-hyped "solid-state" battery is actually a conventional lithium-ion cell, with voltage curves and expansion data matching high-nickel NCM chemistry rather than the promised sodium-ion solid-state design. Electrek reports the company raised about $25 million from more than 1,300 mostly small investors on claims of 400 Wh/kg energy density, 100,000-cycle life, and 5-minute charging that now appear unsupported. From the report: The investigation consulted over 20 independent battery experts, including Julian Zanau from the Fraunhofer Research Institute, Dr. Yahim San from Justus-Liebig University, Tom Bicha from Leona, and Dr. Yuo Hesca from Seinajoki University of Applied Sciences. Every single one confirmed the tested cell is lithium-ion. There are two key pieces of evidence. First, the voltage curves from VTT testing match high-nickel lithium-ion cells (NCM chemistry). The cell sits at 3.7-3.8 volts at 50% state of charge -- right where lithium-ion cells operate. Sodium-ion cells don't go significantly past 3.5 volts at 50% SOC. The second piece of evidence is even more damning: VTT's cell expansion data. When a battery charges, ions squeeze into the anode material, causing it to expand in a predictable pattern. A graphite anode produces a distinctive "kink" in the expansion curve around 50-70% state of charge, caused by how ions reorder themselves in graphite's layered structure. The Donut Lab cell shows exactly that kink. This is critical because sodium ions are physically too large to fit into graphite layers. The graphite anode signature proves the cell uses lithium ions. The investigation puts it well: "it's like we have a slightly noisy fingerprint and a picture of the suspect's face. And yet again, it's a match." The calculated energy density? About 298 Wh/kg -- what you'd expect from a good lithium-ion cell, not the 400 Wh/kg claimed. The investigation reveals that the battery technology traces back to CT Coatings, a German company with an "eclectic" array of patents -- including inventions for screen-printed paving slabs, menu folders, and warning triangles. CT Coatings promised Nordic Nano and Donut Lab a screen-printed sodium-ion solid-state battery. What it delivered was a lithium-ion pouch cell.

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'Severe' Stress On Oceans As Rate of Sea Level Rise Doubles In 10 Years, UN Warns

Slashdot
1 week 5 days ago
An anonymous reader quotes a report from The Guardian: The world's oceans are under "severe and accelerating" pressure from human activities, with the rate of sea-level rise double that of a decade ago, according to a damning assessment from the United Nations. The "intensifying" stressors, which include pollution and large-scale industrial fishing, are cumulative, said the report, resulting in widespread biodiversity loss and putting ocean systems under "severe strain." The UN's third World Ocean Assessment, which reflects the work of nearly 600 scientists from 86 countries, looked at the oceans' health from 2021-25. The previous report, that covered up to 2018, found persistent degradation of the marine environment. Five years on, scientists know more about the cumulative impacts of anthropogenic pressures on the ocean, and the latest report shows just how much of the damage has been done in the past few years. The scientists' key findings include: - Sea levels continue to rise at an increasing rate, from 2mm a year prior to 2015 to 4.3mm a year in 2023. - 16% of the increase in global ocean heat since 1955 occurred after 2018. - The greatest relative warming has been observed in the Atlantic Ocean and the southern parts of the Indian and Pacific Oceans. - Large gaps in knowledge persist -- with only 27% of the ocean floor mapped by 2025, deep-sea ecosystems remain poorly understood. Lukas Meus, Greenpeace's global ocean campaigner, said: "We are calling on governments to create fully protected ocean sanctuaries that will close vast areas of the ocean off from extractive human activities. Governments have promised to protect 30% of the world's ocean by 2030 -- the minimum scientists say we need for the ocean to be able to recover."

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Running CachyOS With The BORE Scheduler While Disabling Ananicy-CPP

LXer
1 week 5 days ago
Last week I ran benchmarks of CachyOS with the BORE scheduler using its "linux-cachyos-bore" kernel option. The results didn't end up being as enticing as anticipated but the developer behind the BORE scheduler commented in the forums that he recently received reports from users experiencing game stuttering while using BORE that was attributed to CachyOS' default use of Ananicy-Cpp. So over the weekend I did another CachyOS BORE run without that CachyOS default...

OpenAI Files For IPO

Slashdot
1 week 5 days ago
OpenAI has confidentially filed for an IPO, "setting it up for what may be the most highly anticipated market debut in recent history and a massive payday for early investors," reports CNN. The decision follows recent IPO announcements from Anthropic and SpaceX. From the report: OpenAI said it has not decided on timing yet. And because the filing is confidential, it's not yet clear how many shares the company plans to sell or at what price. "It may be a while because there are things we want to do that are likely easier as a private company," it said in a post on its newsroom page. But the company said the filing "gives us the option to go public sooner if that ends up being best." The transition to a public company will give Wall Street a window into OpenAI's finances as the company pours billions into AI infrastructure and computing resources. Investors dumped tech stocks last week as they questioned whether a recent run-up in those shares had gone too far. OpenAI was last valued at $852 billion after raising $122 billion in March, but it's faced pressure to demonstrate it can generate the cash to match that valuation.

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Meta Deletes Face-Recognition System From Its Smart Glasses App

Slashdot
1 week 5 days ago
Last Thursday, Wired reported that Meta had quietly embedded an unreleased facial recognition system called NameTag into software installed on millions of phones. In a follow-up report, Wired says the tech giant has now removed the face-recognition-related code, while saying "no final decision" has been made about whether the feature will launch. From the report: On Thursday, WIRED reported that Meta had quietly integrated substantial portions of the NameTag system into the Meta AI app. Though never publicly enabled, the feature was designed to convert faces captured by the glasses into unique biometric signatures, commonly known as faceprints, and compare them against a database of faceprints stored on the user's device. WIRED also found that faces the system failed to recognize were cropped, indexed, and stored locally for future processing. NameTag first surfaced in February, when The New York Times, citing internal Meta documents, reported that the company was developing face recognition for its smart glasses and weighing a launch as soon as this year. One memo reportedly described releasing it during a "dynamic political environment," when privacy and civil liberties advocates would be distracted. Last week, WIRED reported that much of NameTag's machinery was already built into the Meta AI app, downloaded by millions of users, as early as January, even as Meta publicly said it had made no final decision about face recognition. After WIRED's report, Stone dismissed the findings, writing that the company couldn't answer questions about how the system would work because "the feature does not exist." Andrew Bosworth, Meta's chief technology officer, called the reporting "incredibly misleading" and "absolutely dishonest." [...] The newly released version of Meta AI removes nearly all traces of the feature Meta said did not yet exist. Gone is the face-recognition software itself, along with the code that ran the NameTag recognition process and the "Person recognized" alert the app would have shown if someone were identified. The update also strips out a folder where the app would have stored the cropped images and biometric signatures of faces it captured but could not identify. [...] A few fragments of the NameTag system remain in the version of latest Meta AI, including an internal debug menu label and a dormant link meant to open a recognized person's profile. The leftover code points to parts of the system that are no longer there.

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Xbox Game Exclusivity Will Be Decided on a 'Case-by-Case' Basis, Microsoft Says

Slashdot
1 week 5 days ago
Microsoft executive Matt Booty says future Xbox exclusivity will be decided "case-by-case," with Gears of War: E-Day and Clockwork Revolution remaining Xbox console exclusives while major multiplayer, live-service, and previously promised PlayStation releases stay multiplatform. But IGN's Tom Phillips says Microsoft's announcement still leaves numerous questions unanswered, like "why just Gears and Clockwork Revolution?" and "how will this policy be enforced in future?" From the report: Last night's Xbox Showcase featured the return of games specifically earmarked as exclusives for Xbox consoles (though, of course, they'll still also be coming to PC). But why just Gears and Clockwork Revolution? And how will this policy be enforced in future? Microsoft's announcement left numerous questions unanswered. "We want a reason for people to get on board with Xbox, we want them to have a reason to buy an Xbox, we want them to have a reason to be an Xbox fan," Booty said. "At the same time, we want to reward all our players that have been with us for a long time -- we know that exclusives are important, and that's why we've got Gears coming in 2026 and Clockwork [Revolution] coming in 2027." "We also want to be clear that our big multiplayer games and live-service games are going to continue to be multiplatform," he continued. "If we've promised something to players already, we're going to honor that promise. And then -- I think Asha said it -- we're going to make the right decision and not the fast decision. "We're going to keep thinking about this going forward," Booty continued, "and, I think you guys know already, our principle is when we announce the date, we announce the platforms. So, it's going to be case-by-case, but we're going to be clear, that when it's got a date, it's got a platform and you'll know what the choice is going to be." Beyond those games already confirmed for PlayStation (such as the upcoming Halo: Campaign Evolved, and the PS5 version of Forza Horizon 6 due later this year), last night saw Microsoft make the call that other upcoming titles would still be coming to PS5 as well. While it had been assumed that State of Decay 3 would get a PS5 version, yesterday saw it made official. Hellblade threequel Senua was unveiled, and is getting a PS5 version. And, unsurprisingly, Spyro: A Realm Beyond is coming to Xbox, PS5 and Nintendo Switch 2.

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