Researchers developed an ultrasonic espresso process that uses high-frequency sound waves instead of hot water to produce espresso-strength coffee at room temperature. And, not only did coffee drinkers find it comparable to traditional espresso, but the brewing process cut energy use by up to 75%. An anonymous reader quotes a report from The Conversation: We have developed what we call an ultrasonic espresso: a room-temperature brewing process that uses high-frequency sound waves to extract the flavor, oils, aroma and caffeine from coffee grounds. The result is an espresso-strength coffee made in under three minutes, but needing far less energy than the conventional method. Saving up to 75% of energy by not heating the water is a minor benefit for home users or small coffee shops. But for companies making ready-to-drink coffee products at industrial scale, it could be very significant indeed. A concentrated room-temperature coffee could be used directly in bottled drinks, milk-based beverages or cold coffee products. It can also be shipped as a concentrate and diluted later. This would reduce not only energy use, but potentially processing time as well.

The key to the new process is ultrasound. These are sound waves above the range of human hearing. In our system, a small metal device called a transducer presses against the side of a traditional espresso basket and makes it vibrate rapidly. Those vibrations move through the water and coffee grounds. This creates a phenomenon known as acoustic cavitation. Tiny bubbles form and collapse in the liquid. When these bubbles collapse near coffee particles, they produce microscopic jets and forces that act a little like scrubbing brushes. They pit and fracture the surface of the coffee grounds, helping flavor compounds, oils and caffeine move into the water much faster than they normally would at room temperature. In other words, ultrasound helps us replace heat with mechanical energy.

[...] In earlier work, we used ultrasound to speed up cold brew dramatically. But the challenge in this project was different: could we produce something with the strength, body and intensity of espresso, without heating the water? To do that, we adjusted several variables. Brew ratio was one of the most important: how much water we used for each gram of coffee. Too much water and the drink becomes diluted; too little and extraction becomes difficult. Grind size also mattered. Finer grounds allowed us to extract flavor more rapidly. Finally, we tested how long the ultrasound should be applied. We found the sweet spot was about two-and-a-half to three minutes. Of course, making a concentrated coffee in the laboratory is one thing. The real test is whether people want to drink it. [...] For the espresso samples, participants could not reliably tell the traditional and ultrasonic versions apart. There were no significant differences in aroma, flavor, bitterness or overall liking. For filter coffee, the ultrasound version was actually preferred overall, with participants rating its bitterness more pleasantly.

Hyundai Motor Group is acquiring SoftBank's remaining 9.65% stake in Boston Dynamics for $325 million, "closing out SoftBank's last piece of Boston Dynamics and turning the Waltham, Massachusetts robotics company into a wholly owned Hyundai business," reports Startup Fortune. From the report: The price is $325 million for the remaining stake, according to the deal terms, and it follows the put option SoftBank retained when Hyundai bought control of Boston Dynamics in 2021. You should read that as a signal, not a footnote. Hyundai paid about $880 million for an 80% stake in Boston Dynamics in the 2021 transaction, valuing the company at roughly $1.1 billion at the time. SoftBank had bought Boston Dynamics from Alphabet in 2017, after Google had acquired the robotics lab in 2013. It was a strange ownership path for a company whose robots became famous on YouTube long before they became obvious commercial products.

That part is changing. At CES in Las Vegas on January 5, 2026, Hyundai and Boston Dynamics showed the electric Atlas humanoid robot in public, with the Associated Press reporting that the life-sized robot stood up, walked around the stage and was remotely piloted for the demonstration. The useful detail was not the stagecraft. It was the deployment plan. A production version of Atlas is expected to begin work at Hyundai's electric vehicle plant near Savannah, Georgia, by 2028. [...] If Hyundai can turn that into repeatable manufacturing value, the SoftBank exit will look less like a tidy cleanup and more like the moment Hyundai stopped borrowing a robotics future and decided to own it outright.

Rolls-Royce SMR has secured a multibillion-pound agreement to build three small modular reactors on Sweden's west coast, "marking a major step in the British engineering group's ambition to become a leading supplier of the technology in Europe," reports Euronews. From the report: Following a rigorous selection process that started in 2022, UK engineering giant Rolls-Royce's nuclear division, Rolls-Royce SMR, won the contract to build nuclear reactors for Sweden. As part of the deal, the group, selected by Videberg Kraft as its partner, will deliver three Small Modular Reactors (SMRs) to Sweden's west coast, at the Varo Peninsula. "The Videberg Project will build Sweden's first new nuclear power plant in more than forty years, supporting industries and households in southern Sweden," a press statement from Rolls-Royce said. The partnership with utility Vattenfall and developer Karnfull Next is seen as one of the most advanced opportunities for deployment outside of the UK.

[...] The European Commission considers small modular reactors (SMRs) to be a promising low-carbon technology that could help support the bloc's clean energy and energy security goals. In order to remove regulatory barriers, the EU's SMR strategy was adopted in March 2026 to accelerate the development and deployment of the technology across Europe. SMRs are smaller than conventional nuclear power plants, typically generating between 20 and 300 megawatts of electricity. At the upper end of that range, a reactor could produce around 7.2 million kilowatt-hours of electricity per day -- enough to power hundreds of thousands of homes. The International Energy Agency (IEA) estimates that more than 1,000 small modular reactors could be deployed worldwide by 2050 under a supportive policy scenario, requiring cumulative investment of around $670 billion.

An anonymous reader quotes a report from Ars Technica: A decade ago, AMD added a protection to its high-end CPUs to protect them against cold boot attacks and other types of physical exploits that siphon sensitive data out of the connected memory chips. Short for Transparent Secure Memory Encryption, TSME encrypts the entire contents stored in memory, making the data useless to physical attackers. Over time, AMD added TSME to lower-end processors, including the consumer version of its Ryzen chips, a CPU that costs less than the Pro version. Over the years, users of these lower-end chips have gotten used to the added security. Recently and without warning or notice, this lower-end line of AMD chips suddenly dropped the protection, and did so in a way that was impossible to detect on Windows machines and required a fair amount of technical work when using Linux.

AMD has yet to say why TSME worked on these CPUs, or even to confirm the change. AMD declined to answer questions sent by email other than to say TSME "is a security feature only applied to PRO CPUs as part of AMD PRO Technologies." The statement is the first known time the chipmaker has explicitly made this restriction public. [...] There's no indication that AMD ever advertised or marketed TSME as being available in consumer CPUs. AMD has long said that a related memory protection, Secure Memory Encryption (SME), is available only in the Pro and Epyc CPU tiers. SME is OS-managed. It uses a single key and allows the OS to selectively encrypt individual memory pages. TSME is firmware-managed. It encrypts all RAM with no OS involvement. When active, it provides protection against physical attacks, including cold boot exploits, DRAM interface snooping, and memory module removal. It activates silently when enabled in the BIOS, making it the more practically useful of the two protections. Ben Kilpatrick, a self-described "privacy-conscious Linux hobbyist," discovered that TSME had stopped working on his consumer Ryzen processor despite remaining enabled in the BIOS. He spent months investigating, persuaded MSI engineers to test multiple CPUs, motherboards, and firmware versions, and filed a public AMD bug report that traced the change to newer AGESA firmware apparently disabling TSME on consumer chips while retaining it on Pro and EPYC models.

"AMD engineers' comments, such as those mentioned above, and the years of TSME working just fine in the lower-cost tier processors, have understandably conditioned Kilpatrick and other users to reasonably regard it as an expected part of the chip package," reports Ars Technica. "AMD quietly removing it and providing no acknowledgment or explanation strikes these users as something of a betrayal."

Joe Fitzgerald, an expert in silicon-level security, said in an interview: "They could have not realized they did it leading to their cagey responses, or they could have done it intentionally and tried to get away with it, leading to the same cagey responses. But I really feel like an explanation should be in order, even if it was 'TSME was never supposed to be supported. We did ship some firmwares that erroneously enabled it, but you shouldn't use them since we can't guarantee it'll work properly.'"

"Asian stocks rallied Monday while oil prices tumbled," reports CNBC, "after the U.S. and Iran agreed to a peace deal aimed at ending nearly four months of conflict..." The strongest reaction was seen in energy markets. U.S. crude oil futures for July delivery were down 4.77% to $80.83 per barrel by 8:27 p.m. ET. Brent futures, the international benchmark, for August delivery traded about 4% lower to $83.77 per barrel. Asian equities surged. South Korea's Kospi jumped 5.1%, Japan's Nikkei 225 climbed 3.6%, and the broader Topix advanced 2.6%... The U.S. dollar index weakened 0.32% to 99.483, while the yield on the benchmark 10-year Treasury note fell 5 basis points to 4.423%, suggesting that investors were dialing back inflation concerns on easing energy prices. "The most immediate implication is a repricing of the inflation risk premium that markets have been carrying since the Strait closed," said Billy Leung, investment strategist at Global X ETFs...

Besides safe-haven Treasurys, gold also rose. "Gold is the interesting outlier here," Leung said. "In a clean risk-on trade, gold should be selling off as the geopolitical premium unwinds, but it is holding bid around $4,300, which tells you the market is not fully trusting the deal yet." Spot gold prices were up almost 2% at $4,302.19 per ounce. That skepticism reflects lingering uncertainty around the agreement, which remains unsigned and subject to implementation risks. [Josh Gilbert, lead Asia Pacific analyst at trading platform eToro] cautioned that "the deal isn't actually signed until June 19th, the details are still thin, and this conflict has shown more than once that headlines can turn on a dime."

Analysts at Commonwealth Bank of Australia also stressed that the oil outlook hinges on how quickly shipping and production can normalize. Vivek Dhar, head of commodities and sustainability research at CBA, expects Brent to fall to around $80 a barrel by year-end, assuming the Strait remains open and exports recover. However, he warned that damage to refining infrastructure, the presence of sea mines and uncertainty over tanker traffic could slow the return to normal operations. Even so, he said markets are likely to take comfort from the prospect that oil flows need only recover to around 60%-70% of pre-war levels to restore expectations of a global supply surplus.

For investors, the biggest implication will likely be what cheaper energy means for inflation and central banks. Lower oil prices ease pressure on households and businesses while reducing the risk of a broader inflation resurgence just as major central banks enter a busy week of policy meetings.
UPDATE: "A US official is rejecting Iran's assertion that it will receive billions of dollars in frozen funds before a planned 60-day negotiating period begins following Friday's signing of an agreement," reports CNN: The pushback came after Iran's deputy foreign minister, Kazem Gharibabadi, said the next phase of talks would depend on Washington first fulfilling several obligations, including releasing Iranian funds frozen abroad. The differing accounts underscore a significant gap between how the United States and Iran are describing what must happen before the next round of negotiations can move forward.

"Battery breakthroughs will lessen AI's demand on the electricity grid," argues The Washington Post's editoral board, arguing that GM's latest moves "offer a fresh reminder that resource constraints can be solved by innovation."

Or As Fortune put it, "America's electric grid is buckling under extreme weather, aging infrastructure, and an AI build-out that is quietly rewriting U.S. power demand — and General Motors wants to turn that crisis into a business." They describe GM's plan as offering itself "as a distributed utility in disguise... stitching together hundreds of thousands of battery-powered cars, new grid-scale storage, and a unified charging platform into what amounts to a virtual fleet of power plants." The bet puts GM on a collision course with Ford's newly branded Ford Energy unit as both Detroit rivals race to repurpose underused EV capacity for a more urgent problem: keeping the lights on in the AI era. GM's case rests on three planks. The first is its existing fleet. GM says more than 250,000 of its EVs on U.S. roads can already charge bidirectionally — pulling electricity from the grid and sending it back. "Every evening, a quiet transformation occurs across the American landscape," GM Energy vice president Wade Sheffer writes in an open letter to utilities and regulators, describing the EVs sitting in driveways as "a massive opportunity to aggregate energy storage capacity."

A firmware update is rolling out to customers with GM Energy's vehicle-to-home hardware, converting those systems into full vehicle-to-grid assets with no new hardware and turning home backup systems into grid resources when utilities need them. GM is piloting the idea in Michigan with DTE Energy at 30 employee homes, and has sketched a 2030 vision with Pacific Gas & Electric in which more than 52,000 GM EVs help balance the grid out of a projected 130,000 vehicles in the area.
GM is also "seeking partnerships with utility companies nationwide to assist in offering such vehicle-to-grid services for customers," reports CNBC, noting it's one of two moves "meant to address concerns about rising energy costs amid an artificial intelligence boom."

Forbes reports that GM's second goal "is to leapfrog the dominant battery cell tech used for energy storage packs right now" — right past the LFP (lithium-iron phosphate) stage, "which is dominated by China." Sodium batteries are cheaper to use than LFP because they don't need an additional cooling system. They also have a 20-year usable life and are made from materials that can be sourced from within the U.S., the company said at a briefing in San Francisco on Tuesday. "Sodium-ion actually is the better chemistry for that application. And when I say sodium-ion is better, I mean GM's version of sodium-ion," Kurt Kelty, GM's battery chief and a long-time Tesla battery executive, told Forbes. He said GM is seeing great results from its prototypes, even at scorching temperatures of 55 Celsius (131 Fahrenheit).
"Sodium-ion-powered energy storage systems have the potential to operate without active cooling and with much less system complexity," Kurt Kelty, GM's vice president of battery and sustainability, said Tuesday in a blog post. "In large energy storage systems, that matters." Not having to cool the battery cells could lead to lower upfront costs as well as operating costs, the automaker said.

TechCrunch reports on GM's big new partnership with energy-storage startup Peak Energy to develop GM's sodium-ion battery chemistry for grid-scale deployments: GM wouldn't share with TechCrunch how much money it is investing in this energy-storage effort. But we do know the company has committed $900 million to commercialize new battery chemistries, an investment that includes a new battery-development center. .. The first GM cells are expected to enter trial production at the company's Battery Cell Development Center in 2028.
"Our next-generation sodium-ion cell development will drive energy density higher," promises GM's blog post, arguing they're extending the company's battery expertise and technical infrastructure "into the electrical grid itself. If we get this right, we will not just build better batteries. We will help create a more resilient, more affordable and more flexible energy future... Every improvement we make strengthens the development stack that supports both EVs and energy storage."

"The message: GM isn't just selling cars into a stressed grid; it's supplying the batteries to stabilize it," argues Fortune.

And GM also announced they're augmenting their apps with an "Energy Pass" offering "seamless access to Tesla Supercharger, IONNA, Electrify America, and soon, ChargePoint and EVgo networks." Their goal is to simplify the charging experience with an app "that covers nearly 70% of all DC fast chargers in the United States, plus many Level 2 chargers, all through one app."

The Helios Horizon has completed what its developers call the first crewed, fixed-wing flight powered by solid-state batteries. New Atlas reports: On June 5, test pilot Miguel Iturmendi lifted off from Zephyrhills Municipal Airport in Florida at the controls of the Helios Horizon -- the first crewed, fixed-wing aircraft ever to fly on solid-state batteries. The flight was neither spectacular in distance nor in duration -- it was a series of short tests to validate the aircraft's weight and balance after the new batteries had been installed -- but it didn't need to be to make history. [...] The Helios Horizon's previous lithium-ion pack delivered 260 Wh/kg (watt-hours per kilogram, a measure of how much energy a battery holds relative to its weight). The new solid-state cells hit 410 Wh/kg, a 60% jump. Chief test pilot and company founder Miguel Iturmendi expects that figure to grow another 40% within two years.

Though the battery pack can be topped up over any AC outlet, no special infrastructure needed, fast-charging is also supported for up to 80% capacity in under 15 minutes. The aircraft also recovers energy in flight through wing-mounted solar panels and a regenerative system that spins the propeller as a wind turbine during glides and descents. "Regenerative flight can significantly extend the aircraft's range," Iturmendi said after the test flights.

The Helios Horizon itself started life as a Pipistrel Taurus motorized glider. Iturmendi's team added proprietary battery management, a custom propulsion stack, thermodynamic controls, and solar panel wing extensions. The aircraft already holds the world altitude record for electric planes in its weight class, having reached 24,000 ft (7,315 m). The next goal is 40,000 ft (12,192 m), commercial cruising altitude, in stratospheric flights planned for later this year.

A leaker with a strong Apple rumor track record says a touchscreen MacBook is "100% confirmed. If true, it would mark a major reversal for Apple, which has long argued that the Mac is built for indirect input rather than reaching up to touch a vertical screen. MacRumors reports: Instant Digital has a good track record for Apple rumors and has provided some strikingly accurate information in the past, so it's always worth noting what they have to say about Apple's plans. The claim is also backed by several recent reports. [...] Touchscreen support is expected to be one of several major upgrades coming to Apple's next-generation high-end MacBook Pro models. Other rumored features include M6 Pro and M6 Max chips, an OLED display, a Dynamic Island (i.e., no notch), and a thinner design. The new laptops could also adopt MacBook Ultra branding.

Notably, macOS 27 Golden Gate also introduces a more touch-friendly interface, since Apple's Sidecar feature now allows users to tap and interact with macOS interface elements using a finger on their iPad. Apple apparently is not going to advertise the new MacBook Pro/Ultra as a touch-first device like the iPad -- it will be "touch-friendly, not touch-first," according to [Bloomberg's Mark Gurman]. In that sense, Apple will let customers use touch and mouse gestures interchangeably for all functions. Further reading: Steve Jobs Was Wrong About Touchscreen Laptops (2012)

Longtime Slashdot reader Dotnaught shares a report from The Register: For the past 90 days, Microsoft has been quietly patching a firmware flaw in Surface devices that allowed the hardware to be bricked with a single packet, though only for those who have disabled Secure Core and Secure Boot. And the company's Copilot AI software inadvertently helped identify the faulty firmware.

According to Jack Darcy, a security researcher based in Australia, his instance of Microsoft Copilot stumbled across the bug after being asked to adjust the screen backlighting on a Surface device. The Copilot-conjured Python script ended up rendering the researcher's laptop inoperable by overwriting the embedded controller firmware. "Copilot autonomously created and executed four progressively aggressive Python scripts during a probe for backlight control values that sent raw SSAM ioctl commands (SSAM_CDEV_REQUEST = 0xC028A501) directly to the SAM microcontroller through the SAM software path," Darcy explained to The Register.

[...] "We appreciate the work of Jack Darcy and The Register for reporting this issue under a coordinated vulnerability disclosure," a Microsoft spokesperson said in a statement. "Our investigation found that a deprecated UEFI interface could trigger a boot loop on some devices. To trigger this loop, the user must have administrator privileges and have already disabled the Secure Boot security feature. We have released updates to address the issue for most impacted devices."

That means managed devices are not at risk. But those using Linux, or Windows users who have disabled Secure Core and Secure Boot for gaming, or who use custom Windows drivers, or who have USB boot enabled, may still be vulnerable if their systems haven't received the update. We're uncertain about the range of Surface devices affected. Our source said it appears to be all of them (Surface Laptops 3-6, Surface Book 1-3) except for Surface Go models. ARM variants, however, have not been tested. The report notes that Microsoft is planning to move the Surface stack to a more secure architecture based on Rust code.

"Our most recent Surface for Business hardware features a major architectural shift in terms of improved reliability and security that spans our embedded controller, UEFI, but also some of our drivers," said David Abzarian, chief architect for Microsoft Surface. "We're investing in the most secure foundation for a PC by building our embedded controller firmware from the ground up in Rust (as part of leveraging and contributing to the Open Device Partnership (ODP)) in addition to a rewrite of the UEFI DXE Core in Rust; these projects are known as Secure EC and Project Patina respectively."

"We're also not only shipping some of our drivers written in Rust, but also helping co-develop the framework Windows Drivers in Rust (WDR) to help enable a broad set of partners in the Windows ecosystem to capitalize on these benefits. I will also note that all of these efforts are open-source promoting one of our key security principles around transparency."

An anonymous reader quotes a report from Electrek: Solar generated more U.S. electricity than coal for the first month on record in May 2026, according to new analysis from global energy think tank Ember. Solar supplied 12.8% of U.S. electricity during the month, while coal dropped to 12.2%. That's a dramatic shift in the U.S. power mix. Just five years ago, coal generated 19.7% of U.S. electricity in May, while solar accounted for only 5.4%. U.S. solar generation hit a record 45.5 terawatt-hours (TWh) in May 2026, up 17% from May 2025 and higher than the previous record set last July. Ember says another record could be broken again this summer.

Solar output usually peaks in June or July, but its share of the electricity mix is often highest in spring, when strong sunshine lines up with milder temperatures before summer cooling demand ramps up. May was also the first time solar became the third-largest individual source of electricity in the U.S., behind only natural gas and nuclear. (If solar is included with all other renewables, then they're the second-largest source of electricity as an overall category of electricity.) Meanwhile, coal keeps sliding (and will continue to slide). Coal generation hit an all-time monthly low of 39.3 TWh in April 2026. Output rose slightly in May to 43.4 TWh, but it was still 11% lower than May 2025 levels. Even with that small rebound, coal couldn't keep pace with solar's rapid growth.

BYD plans to install 3,000 ultra-fast "Flash Chargers" across Europe by the end of 2027, with the first stations already appearing in Germany and the UK. The Verge reports: At an estimated cost of 580,000 euros (about $670,000) per charger according to the Financial Times, that would mean a total spend of roughly $2 billion to install the network. The 1,500kW charging stations are significantly more powerful than Tesla's 500kW V4 Superchargers, though Tesla already has 20,000 chargers installed in Europe. BYD, which has been steadily overtaking Tesla in global sales, says its chargers shouldn't add undue strain to the energy grid, as they'll charge cars from batteries which can be topped up overnight.

Any car with a standard CCS charge port can use the Flash Chargers, though only BYD cars equipped with the company's new Blade Battery can hit the top speeds. Right now there's only one of those in Europe, the 115,000 euros ($133,000) Denza Z9 GT -- it charges to 70 percent in five minutes on the new chargers.

Commonwealth Fusion has published five peer-reviewed papers laying out the physics case for ARC, its planned 400 MW fusion power plant, which would follow the company's smaller SPARC tokamak now under construction. The papers suggest ARC could produce more energy than it consumes using high-temperature superconducting magnets, molten-salt heat extraction, and 15-minute fusion pulses. Ars Technica reports: ARC will be a tokamak that hosts fusion between hydrogen's two heavier isotopes, deuterium and tritium. This reaction results in a helium nucleus and releases a neutron and radiation. The helium transfers heat to the plasma, maintaining the conditions needed for fusion, but it is otherwise a waste product, referred to as "ash" in the fusion context. The neutron and radiation, however, are put to use. Part of that use is simply imparting energy into a blanket of molten salt that surrounds the fusion chamber. That energy, in the form of heat, will be used to drive a turbine that produces the electricity. The molten salt includes lithium ions; when one lithium isotope absorbs a neutron, it decays into more helium, plus tritium that can be used as fuel for the reactor. There are isotopes present that will also release additional neutrons, allowing this process to generate sufficient fuel.

Overall, the present design of ARC is expected to produce about 1.13 GW of fusion power, with 500 MW of that extracted as electricity. Some of that (100 MW) will be needed to power the plant's operations, leaving 400 MW to be sent to the grid. The rest of the energy is either kept in the tokamak to maintain the fusion reactions or lost due to inefficiencies in the heat and energy transfer of the system. There's a lot of uncertainty about these numbers; the 1.13 GW is just the center of a range of potential values running from 900 MW to 1.3 GW, so the 400 MW output may need to be adjusted up or down accordingly.

Some of that 400 MW comes during periods where fusion is not occurring. The nuclear reactions will occur within 15-minute-long periods that will be interspersed with one minute resets. The resets are meant to be kept short enough that nothing has much of a chance to cool down before it gets heated up again -- thermal inertia will let it continue generating power. That will be one of the key differentiators with SPARC, which doesn't have the heat extraction needed to maintain stable fusion for these long time periods, and so can't maintain the near constant temperatures needed for reliable power generation.

It's inevitable that parts of the device will be exposed to radiation and perhaps fusion plasma. The inner walls of the reactor will be shielded by tungsten, which will limit erosion by the conditions. Meanwhile, the vacuum vessel is designed to be replaced every one to two years. The papers note that this flexibility will allow them to make some design changes even after ARC is built. To enable this, the whole tokamak is meant to split in half for maintenance.

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.

Reuters reports: Several large data centers and crypto facilities planning to connect to the Texas power grid ahead of peak summer demand have failed key reliability tests, raising the risk of power outages just as electricity use hits its seasonal high, according to the state grid operator... Unlike traditional industrial customers, which tend to draw electricity steadily and predictably, data centers are engineered to cut their connection to the grid at the first sign of trouble to protect their equipment and keep services running. That makes them an unpredictable and potentially destabilizing force on grids already under pressure from rising demand. Four groups of unnamed large electricity users, including data centers, abruptly disconnected from the Texas grid during a test of how they would handle routine voltage disturbances, the Electric Reliability Council of Texas (ERCOT) said in a report dated May 21.

When large customers abruptly cut their power use, it can knock the grid off balance and trigger wider outages. ERCOT, which manages electricity for most of Texas, said it reviewed about 20 gigawatts of large customers seeking to connect to the system, including eight projects totaling roughly 3.9 gigawatts aiming to start up before July 1. It said it identified four groups of large power users that could each trigger more than 5,000 megawatts of demand tripping under certain fault conditions, based on simulations of transmission system disturbances. Those abrupt drops in demand were equivalent to the electricity consumption of a large city such as Boston.

Sales have increased for Hyundai's under-$35,000 IONIQ 5, totalling 18,395 for the first five months of 2026, reports Electrek, "up 16% from the same period last year."

But meanwhile BYD's overseas sales surpassed 160,000 for the first time last month, "up 80% from May 2025 and 19% from the previous record of 135,098 set in April." Through the first five months of 2026, BYD sold 616,263 vehicles overseas. In May, overseas sales accounted for over 41% of BYD's total sales. In several major markets, including the UK, BYD surpassed Tesla and Kia to become the best-selling EV brand through April. "With fuel prices remaining high, more drivers are turning to electric vehicles as a smarter and more economical choice," Bono Ge, BYD UK's Country Manager, said last month.
Elsewhere Electrek notes that Toyota's bZ (starting at under $35,000) was the third-best-selling EV in the U.S. in the first three months of 2026, behind only the Tesla Model 3 and Model Y. "Last month, bZ sales doubled from May 2025, with 2,646 units sold."

And meanwhile the first Volkswagen ID. Polo and Cupra Raval models "rolled off the production line at the Group's Martorell plant in Spain, the first of several new affordable, mass-market EVs." Starting at €24,995 ($29,000) and €26,000 ($30,100), the ID. Polo and Cupra Raval are the first models from the Group's Electric Urban Car Family...

[T]he first customer deliveries are scheduled to begin later this summer and into the fall. Following the ID. Polo and Cupra Raval, Volkswagen will introduce new members to the Electric Urban Car Family, including the ID. Cross, an electric version of the T-Cross, later this year. According to Volkswagen, the ID. Cross will start at around €28,000 ($32,500).