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09 Jun 2026 8:25am GMT

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09 Jun 2026 7:33am GMT

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

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09 Jun 2026 6:14am 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

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

08 Jun 2026 9:03pm GMT

The Document Foundation disputes Euro-Office's "first European open-source office suite" claim and criticizes its OOXML default.

08 Jun 2026 8:57pm GMT

Rspamd 4.1 lands with redesigned MX checks, load-aware upstreams, dynamic composites, stronger diagnostics, and broad security hardening.

08 Jun 2026 8:02pm GMT

Proton confirms it is actively building a native Drive client for Linux, using its new SDK to bring encrypted file sync closer to desktop users.

08 Jun 2026 4:15pm GMT