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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.

Read more of this story at Slashdot.

09 Jun 2026 7:00am GMT

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."

Read more of this story at Slashdot.

09 Jun 2026 3:30am GMT

The waiver "serves the public interest by promoting a second large satellite broadband constellation."

09 Jun 2026 12:59am GMT

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.

Read more of this story at Slashdot.

08 Jun 2026 11:00pm GMT

Mystery of GPS interference across Europe raises questions about Russian motives.

08 Jun 2026 9:56pm GMT

In today's climate, I needed this: GentleOS, an operating system targeting both 386 (GentleOS/32) and even processors as old as the 80186 (GentleOS/16), with a lovely retro graphical user interface, usable on bare metal, and, of course, open source. Its goal is to provide a simple platform for tinkering with retro hardware and running graphical interactive apps on bare metal. At minimum, it only requires an i386 CPU, 4MB of RAM, and a VGA display capable of 640x480x16 mode. By design it's entirely monolithic, mostly configured at compile time, and only supports standard PC devices: VGA/SVGA, keyboard, PS/2 mouse, serial mouse, PC speaker. The only future plans are bugfixes, optimizations, and adding more apps. GentleOS/32 has a pure 16-bit spin-off called GentleOS/16, which targets devices as old as 80186. ↫ GentleOS GitHub page While it can be run on real hardware, you can also run it in Qemu to make it easier to test and play around with. It looks great, and the stated goal of just focusing on maintenance and possibly additional applications is music to my heart. With everything that's going on in technology today, this is an ice-cold glass of tonic in a scorching, data center-infested desert.

08 Jun 2026 9:26pm GMT

You'll need an M1 or better to run the next release of macOS.

08 Jun 2026 9:03pm GMT

Apple's developer conference started today, and as is tradition, this means it also announced coming updates to its operating systems lineup. macOS is probably one of the two major ones OSNews readers are interested in, so let's start there: Much like Mac OS X Snow Leopard in 2009, Apple said it focused on improving macOS's performance and dozens of underlying technologies this year. macOS Golden Gate has some Liquid Glass design changes. For example, apps now have a unified toolbar at the top, and the sidebar now expands to the edge of the window. A new slider on macOS 27 lets you customize the opacity of Liquid Glass. ↫ Joe Rossignol at MacRumors Effectively, a ton of "Liquid Glass" features touted only a year ago are being changed and fixed, which should make using Liquid Glass less of a frustrating affair. Of course, there's a whole slew of new "AI" stuff built entirely on top of Google's Gemini, but luckily for us Europeans, we won't be getting those features because EU privacy and consumer protection regulations are too strict. Apple, one of the world's most valuable companies, seemingly cannot create "AI" features that comply with some basic consumer protection legislation. As for the other major platform, that's iOS of course. At WWDC 2026 in Cupertino, Apple announced iOS 27, the next mobile operating system for compatible iPhones. The update focuses on tweaking and improving last year's iOS 26, particularly in areas like app launch time, Liquid Glass design, and more. It does not offer a lot of major new features or upgrades, as Apple focused on polishing the experience. However, there are some new upgrades, such as reworked parental controls, new Siri AI, better search, and performance improvements. ↫ Taras Buria at Neowin These new versions, as well as those of Apple's other operating systems, will be available later this year.

08 Jun 2026 7:54pm GMT

Redox progressed another month, and that means a ton of improvements and new features to talk about. The biggest news this past month is that Xfce has been ported to Redox, which offers a better X11 experience than MATE currently does. There's still some bugs but apparently is works quite well. The porting process for the COSMIC desktop environment also progressed, with COSMIC's new Monitor application making its way to Redox. As part of Google Summer of Code, the EEVDF scheduler has been implemented in Redox, delivering better, more stable scheduling and overall system performance improvements. Also as part of GSoC inode caching has been implemented for RedoxFS, which improves file system performance. Of course, there's a lot more here too, including the usual long list of kernel fixes, relibc improvements, and more.

08 Jun 2026 5:37pm GMT

Good morning from JetBrains Berlin office!

01 Jun 2026 12:00am GMT

Just trying to answer one simple question: What if the terminal was 3D?

11 May 2026 12:00am GMT

Break the pattern today or the loop will repeat tomorrow.

18 Apr 2026 12:00am GMT