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Is the ‘Holy Grail of batteries’ finally ready to bless us with its presence?

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Is the ‘Holy Grail of batteries’ finally ready to bless us with its presence?

Earlier this year, a relatively unknown startup from Finland made a startling announcement: It had finally solved solid-state batteries.

Not only that, but Donut Lab, a spinoff of Verge Motorcycles, said that its solid-state battery — long considered the “Holy Grail of batteries” for their high-density, durable, fast-charging abilities — would go into production later this year.

Battery experts were understandably skeptical. After all, solid-state batteries are one of those technologies, along with artificial general intelligence and the hyperloop, that seem perpetually two years away. And while most legitimate efforts in this field — whether academic or commercial — have some level of published research or recognizable names attached, Donut Lab seemed to have emerged out of nowhere, with no known researchers or prior presence in the field. This lack of traceability immediately raised concerns about the startup’s credibility.

“I can’t say they didn’t do it,” said Eric Wachsman, the director of the Maryland Energy Innovation Institute and an expert on solid-state batteries and solid oxide fuel cells. “All I can say is they haven’t demonstrated that they have.”

The skepticism seems warranted, especially when you consider how many other people have been chasing the solid-state dream. Were we really to believe this obscure startup had beaten Toyota, Stellantis, and the entire nation of China to the punch? The odds were against it.

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Donut Lab seemed to anticipate the doubt, launching a website last February called idonutbelieve.com that would serve as a platform to publish independent tests verifying that, in fact, its solid-state battery was real, and spectacular. Over the course of several weeks, the startup posted third-party results from state-owned VTT Technical Research Centre of Finland that it said proved its battery was what it said it was: a fast-charging, high-energy-density solid-state battery that wasn’t actually a supercapacitor in disguise.

“The resistance won’t disappear when we present the proof,” Donut Lab CEO and cofounder Marko Lehtimäki said in a video. “It will just intensify because this new technology is a threat to the established players in the industry.”

But Donut Lab is still hiding the ball on some key information. At CES in January, the startup said its solid-state battery has an energy density of 400Wh per kilogram—roughly twice that of typical lithium iron phosphate (LFP) batteries in production. Not only that, but it could charge to full in five minutes, had a practically unlimited lifespan of 100,000 charging cycles, was unaffected by heat and cold (negative 30 degrees Celsius and 100C), and contains no rare earth elements, precious metals, or flammable liquid electrolytes.

Much of that remains unsubstantiated. Even after posting five independent test reports from VTT, the startup has yet to demonstrate three of the most important metrics: chemistry, density, and cycle-life claims.

The stakes are incredibly high. Imagine an electric vehicle that can travel 700–800 miles on a single charge, and that wasn’t at risk of bursting into flames because the flammable electrolytes had been replaced with a solid material.

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In lithium-ion batteries, the motion of the liquid electrolytes generates heat, and in certain situations, this can slip into a “thermal runaway” effect that results in a fire. By comparison, solid-state batteries would make it safer to quickly draw power from (or add it back to) the battery, meaning you could theoretically charge an EV faster. It also could mean, structurally, less room has to be devoted to temperature control, which could allow companies to squeeze more battery cells into the same size pack.

After reviewing the tests of the Donut battery, Wachsman said there are still significant concerns. During the extreme heat tests, for example, the pouch surrounding Donut’s battery lost its vacuum seal. Gas generation inside batteries — caused by processes like electrolyte decomposition or oxygen release — can lead to swelling and rupture of the battery pouch. But without knowing the exact chemistry of the cell, it’s difficult to say how significant it is that Donut’s battery had this failure.

Setting aside the Donut battery for a moment, solid-state batteries have struggled to graduate from the laboratory to the assembly line because of well-documented problems. These batteries are often plagued by the formation of metallic cracks called dendrites that cause them to short circuit. Think of them like cracks that form on a sidewalk when a tree root grows underneath.

Dendrites have been a thorn in the side of battery developers since the 1970s. One reason lithium-ion batteries have become ubiquitous while other approaches have stalled is that their commonly used graphite anodes are less susceptible to dendrite formation.

But new discoveries could help engineers finally overcome these hurdles. A research team from MIT recently published a study in Nature that found that chemical reactions caused by high electrical currents that weaken the electrolyte also make it more susceptible to dendrite growth. That’s why developing stronger electrolytes alone hasn’t solved the decades-old dendrite problem. And it could point to the importance of developing more chemically stable materials to finally fulfill the promise of solid-state batteries.

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Progress is already being made — where else? — in China. Last month, CATL, which controls nearly 40 percent of the global battery market, filed a patent application for solid-state batteries with a reported 500Wh energy density. According to CarNewsChina, the battery maker has already been planning small-scale production in 2027. But automotive-grade cells won’t be ready likely until the end of the decade.

Other Chinese companies are rushing ahead. Automaker FAW said recently that its “liquid-solid-state” lithium-rich manganese cell with 500Wh/kg was ready for vehicle integration.

China is already laying the groundwork for mass production by the end of the decade, by which point it hopes the technology will be mature. And why wouldn’t it? This is a country that has taken EVs and battery development seriously for years, allowing it to corner the market on much of the world’s supply.

Different companies are taking different approaches. For example, Honda is committed to sulfur-based electrolytes despite emerging alternatives. Last October, Toyota announced “the world’s first practical use of all-solid-state batteries in BEVs” by 2027 or 2028. And Mercedes, using a prototype battery from startup Factorial, was able to get an electric EQS sedan a real-world range of 749 miles.

“The companies probably have a ways to go,” said Alevtina Smirnova, director of the NSF Industry-University Cooperative Research Center for Solid-State Electric Power Storage. “Because there is no comparison to what is happening now in China to what is happening here in the US.”

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For its part, Donut Lab is unperturbed by the skepticism around its claims. On April 1st, Lehtimäki posted a new video addressing some of the controversy surrounding its solid-state batteries. He also revealed that Donut Lab had created a second, more production-ready version of its battery that would start shipping to customers later this year.

There was a crucial admission: The widely discussed “100,000 cycles” figure was a design target, he said, not an experimentally verified result. Actual testing has been conducted over shorter cycles, with projections extrapolated based on known variables such as charge rate, temperature, and usage conditions.

He then pivoted to a more near-term project: Donut Lab’s latest merch drop, including a “tin-foil”-covered bucket hat.

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Smart travel safety tips before your next trip

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Smart travel safety tips before your next trip

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You booked the flights. You’re picturing great food, new sights and a break from your routine. Travel should feel easy. But here’s what most people don’t think about until it’s too late. The biggest problems today often come from your phone, your data and your accounts. Before we get into the essentials, here’s the question from Chuck V, from Georgia, that sparked this article:

“My wife and I will be flying to Florence, Italy, next week and are wondering if there are any special tips we should be aware of before we leave.”

Chuck, you’re asking the right question at the right time. A few smart moves before you leave can save you from frozen credit cards, locked accounts or a phone nightmare overseas. Let’s walk through what actually matters.

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HOW TO MINIMIZE YOUR DIGITAL FOOTPRINT WHEN YOU TRAVEL
 

A few smart tech moves before an overseas trip can help travelers avoid surprise charges, locked accounts and phone security problems. (O2O Creative/Getty Images)

Lock down your phone before you leave

Your phone holds your banking apps, email, travel confirmations and personal photos. That makes it more valuable than your passport to the wrong person. Start with updates. Install the latest version of your operating system and update your apps. Security patches close known gaps that attackers look for, especially on public networks.

Next, turn on built-in protections:

  • Enable a strong passcode or biometric lock on your iPhone and Android
  • Turn on tracking tools like Find My on iPhone or Find My Device on Android
  • Make sure remote wipe is enabled so you can erase your phone if it’s lost or stolen. If you’re not sure how it works, here’s how to wipe your device if something goes wrong.
  • Also, take a minute to review app permissions. Many travel apps request access to location, contacts or storage. Limit that access before your trip so you are not oversharing without realizing it.

Have a real plan for staying connected

A lot of travelers assume their phone plan will work automatically overseas. Sometimes it does. Sometimes it leads to a shocking bill. Here are your main options:

International plan through your carrier

Easy to activate but often expensive if you use a lot of data.

eSIM

This is usually the best mix of price and convenience. You can install it before your trip and switch it on when you land.

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Local SIM card

Often cheap but requires swapping your physical SIM and dealing with local setup.

Before choosing, make sure your phone is unlocked. If it is tied to your carrier, some options will not work. Also, turn off automatic data roaming until you need it. That one setting alone can prevent surprise charges. 

Want a deeper breakdown of which option is best for you? Read this guide on how to stay connected while traveling.

POPULAR TRAVEL SCAMS AND SAFETY WARNINGS YOU NEED TO KNOW BEFORE TAKING VACATION
 

Public Wi-Fi, roaming fees and stolen devices can quickly derail a trip, but a simple digital checklist can lower the risk. (FG Trade/Getty Images)

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Public Wi-Fi is convenient but risky

Airports, hotels and cafés offer free public Wi-Fi everywhere. It feels harmless. It is not always safe. Public networks can expose your data if they are not secured. That includes logins credit card details and emails. Using a virtual private network (VPN) adds a layer of encryption between your device and the internet. It helps protect your activity and reduces the risk of someone intercepting your data. Even with protection, avoid logging into sensitive accounts on public Wi-Fi when possible. Wait until you are on a trusted network or use your mobile data.

Credit card safety matters more than you think

Tourist areas attract more than travelers. They attract scammers.

Keep your setup simple:

  • Bring one primary card and one backup
  • Store them in separate places
  • Use contactless payments when possible

When you need cash, use ATMs attached to banks. Standalone machines in busy areas are more likely to be tampered with. Pay attention to your surroundings when entering your PIN. Distraction tactics are common in crowded areas. Also, notify your bank before you leave. That reduces the chance of your card being flagged and declined mid-trip. If you want more ways to protect your cards while traveling, read this guide.

Turn your phone into a travel tool

Your phone can make the entire experience smoother if you use it right. Translation apps help you understand menus, signs and conversations in real time. Camera features can translate text instantly, which is incredibly useful in unfamiliar places. Maps can be downloaded offline, so you are not stuck without directions when your signal drops. Location sharing adds peace of mind. Let a trusted contact see where you are during your trip. These small features make things easier and help you stay focused on the experience instead of logistics.

STATE DEPARTMENT REVEALS WORLD’S MOST DANGEROUS COUNTRIES FOR AMERICANS
 

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From eSIMs to contactless payments, practical steps can help make international travel safer, smoother and less stressful. (ZeynepKaya/Getty Images)

Watch what you share while you travel

It is tempting to post your location in real time. That can expose more than you intend. Sharing that you are away from home can signal an empty house. Posting your exact location while you are still there can also create unnecessary risk. Instead, share photos after you leave a location or after you return home. It is a simple shift that protects your privacy.

A quick pre-flight checklist

Before you head to the airport, run through this:

  • Notify your bank and credit card companies
  • Screenshot or download key documents like your passport and tickets
  • Download offline maps for your destination
  • Pack a universal power adapter
  • Double-check your phone security settings

These take minutes but can save hours of frustration later.

What this means to you

Travel today is as much digital as it is physical. Your phone connects everything from your boarding pass to your hotel room. If you protect that one device, you reduce most of the common travel risks. You avoid surprise charges. You lower the chance of account lockouts. You keep your personal data from being exposed. It also makes your trip smoother. You spend less time troubleshooting and more time enjoying where you are.

Take my quiz: How safe is your online security?

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Think your devices and data are truly protected? Take this quick quiz to see where your digital habits stand. From passwords to Wi-Fi settings, you’ll get a personalized breakdown of what you’re doing right and what needs improvement. Take my Quiz here: Cyberguy.com

Kurt’s key takeaways 

Travel should feel exciting, not stressful. Most problems people run into are preventable with a little preparation. Take a few minutes before you leave to lock things down. It is one of the easiest ways to protect your trip.

What other travel questions do you have when it comes to your tech?  Let us know by writing to us at Cyberguy.com

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Copyright 2026 CyberGuy.com.  All rights reserved.

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Room for the Moon is thrillingly weird experimental pop

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Room for the Moon is thrillingly weird experimental pop

For obvious reasons, I’ve had Moon on the mind all week. So I was trying to figure out what I should recommend this week that would thematically fit. Brian Eno’s Apollo: Atmospheres and Soundtracks is incredible, and if you haven’t listened to it, go do that now. But it also seemed a bit on the nose. Radiohead’s A Moon Shaped Pool also came to mind. But it also felt a bit obvious. Then I remembered Kate NV’s Room for the Moon, a record I had on repeat in 2020.

Russian artist Kate Shilonosova chases ideas across 11 tracks inspired by Russian and Japanese pop from the ‘70s and ‘80s, as well as children’s movies. This obviously leads Room for the Moon to indulge its most whimsical impulses. It’s a fairytale rendered in snappy Talking Heads-esque bass, proggy synths, and reverbed drum machines.

The opener “Not Not Not” is almost goofy, its chaotic melodies constantly dancing around each other in a perpetually disorienting way. It lurches forward asymetrically, grooving like a flat tire. The instrumental “Da Na” follows, drawing on a familiar yet slightly uncanny palette of sounds. The clarinet (?) drifts in and out of dissonance as if drunk. The tuned percussion elements flit around what might be a kenari seed shell shaker or someone running their fingers over the tines of a comb. It’s truly impossible to tell, and both seem as likely as the other.

“Sayonara (Full Moon Version)” is the fantastical daydream counterpart to Oingo Boingo’s nightmare new wave theatrics. The least strange track on the record is probably “Plans,” which fully embraces 80s dance pop aesthetics. But even that song finds room for a minute-long instrumental passage featuring a bleating, almost atonal saxophone solo.

While the sounds are strange, uneasy, and almost queasy at times, the songs are light and fantastical. Despite not understanding the lyrics, which are mostly in Russian, it’s impossible not to get a sense of hope from them. Kate NV’s Room for the Moon is not a somber lunar lullaby, but the pleasant dreams of an innocent mind.

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Identity theft losses surge 70% for older Americans

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Identity theft losses surge 70% for older Americans

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The FBI has just released its latest annual internet crime report, and the numbers are staggering: Americans filed 1,008,597 complaints with the Internet Crime Complaint Center (IC3) last year, with losses nearing $20.9 billion.

Buried in the new data is an eerily familiar trend getting more expensive for older adults. Identity theft complaints involving Americans 60 and older totaled 5,359 complaints and $48.5 million in reported losses in 2025, a steep jump from the year before.

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DO YOU KNOW THE TRUE COST OF IDENTITY THEFT?

Identity theft tied to major data broker breaches has cost Americans more than $20 billion over the past decade, according to a Senate report analyzing hundreds of millions of exposed records. (Sara Diggins/The Austin American-Statesman via Getty Images)

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Seniors account for a disproportionate share of losses

The report shows a clear fault line by age. Americans 60 and older filed more than 200,000 complaints in 2025, with reported losses reaching $7.7 billion, the highest total of any age group. By comparison, people in their 30s and 40s submitted more complaints overall, but reported lower total losses. Complaints from older adults more often involve bank accounts, retirement funds, and investment portfolios, where a single identity fraud incident can result in a large withdrawal or transfer.

IC3 data is based on self-reported complaints submitted by victims and businesses throughout the year. Each report includes details such as transaction type, payment method, and estimated losses. The FBI aggregates these submissions to identify where money is moving and which groups are being affected.

Identity theft appears within this data as one of several fraud types. Identity theft prompts fewer complaints than categories such as investment or tech support scams. In many cases, it’s used to get access to existing accounts, where stolen personal details can pass verification checks and move funds.

Identity theft losses trail other fraud types

Investment scams led all categories in 2025, with reported losses of more than $4.5 billion. Business email compromise followed, with losses exceeding $2.9 billion, while tech support scams accounted for more than $1 billion. These categories make up a large share of the $7.7 billion in total losses mentioned earlier.

Identity theft sits below those totals, though it remains part of how some of these cases unfold. Among victims age 60 and older, identity theft complaints added up to $48.5 million in reported losses last year. That’s a roughly 70% increase from 2024.

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Other federal data shows how common identity theft remains. The Federal Trade Commission (FTC) receives more than a million identity theft reports each year, placing it among the most frequently reported consumer issues, even as total losses remain lower than other fraud types.

5 MYTHS ABOUT IDENTITY THEFT THAT PUT YOUR DATA AT RISK

How are victims getting scammed?

Complaints from older Americans span a wide range of fraud types, with a few categories appearing consistently across IC3 reports.

  • High-volume scams: The most frequently reported complaints include phishing and spoofing, tech support scams, and government impersonation, all of which involve direct contact through phone calls, emails, or online messages. Other commonly reported cases include non-payment or non-delivery scams, extortion, and personal data breaches, each contributing to overall complaint volume among victims aged 60 and older.
  • High-loss scams: The categories tied to the largest losses are different. Investment scams, business email compromises, and confidence or romance scams account for a significant share of reported losses, even with fewer complaints.
  • New categories also appear in the 2025 data. AI-related scams are included for the first time, with thousands of complaints and substantial reported losses among older victims. Charity fraud is also listed as a newly reported fraud type for this group.

An identity theft victim in Albany, New York, looks over documents he’s gathered. Victims of identity theft frequently spend weeks disputing fraudulent accounts, contacting lenders and restoring their credit reports after stolen data is misused. (John Carl D’Annibale/Albany Times Union via Getty Images)

How to avoid these scams

With losses climbing, knowing how these scams work and how to spot them early can make all the difference.

1) Limit how personal information is shared

Be cautious when asked for Social Security numbers or account credentials. Government agencies, banks, and tech companies do not request this information through unsolicited calls, emails, or messages.

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2) Pause before sending money

Scams that lead to the largest losses often involve urgency. Requests to move money quickly – especially through wire transfers, cryptocurrency, or gift cards – should be treated with caution. Taking time to verify the request can prevent large losses.

3) Verify contacts independently

If a message claims to be from a bank or government agency, use a known phone number or official website to confirm. Do not rely on contact details provided in the message itself.

4) Watch for unusual account activity

Regularly review bank and investment accounts for unfamiliar transactions. Small or unexpected changes can be an early sign of unwanted access.

5) Use account protections where available

Enable two-factor authentication and account alerts where possible. These tools can help flag or block unauthorized access attempts.

Monitoring can help catch identity misuse earlier

When identity theft happens, the first sign could be a new account or a transaction the account holder didn’t authorize. Credit monitoring and identity protection services can track activity across credit files and financial accounts, alerting users when new accounts are opened or when personal information appears in known data breaches.

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That can give victims a window to act, such as freezing credit, locking accounts, or disputing fraudulent activity, before they lose money. Many services also offer identity theft insurance and fraud resolution support, helping cover certain losses and guiding victims through the recovery process.

If fraud does happen, that support can include working directly with banks, credit bureaus, and creditors to restore accounts and remove fraudulent activity.

For older Americans, where accounts often hold larger balances, timing can mean the difference between a small loss and a much larger one, and how quickly accounts are restored.

MICROSOFT ‘IMPORTANT MAIL’ EMAIL IS A SCAM: HOW TO SPOT IT

No service can prevent every kind of identity theft. However, monitoring tools and guided recovery support can make it easier to detect suspicious activity early and respond quickly.

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See my tips and best picks on Best Identity Theft Protection at Cyberguy.com

Kurt’s key takeaways

OpenAI joins the Global Anti-Scam Alliance as bad actors use AI to scam victims out of money and data. (Halfpoint/Getty Images)

The numbers tell a clear story. While identity theft may not top the list of total losses, it plays a critical role in how many of the biggest scams succeed. For older Americans, the stakes are higher because the accounts being targeted often hold decades of savings. What stands out isn’t just the increase in complaints. It’s how fraud is evolving. Scammers are combining tactics, using identity theft to unlock accounts, then moving money through investment scams, impersonation schemes or social engineering attacks. Once they get in, the damage can escalate quickly. The takeaway is simple. Slowing down, verifying requests and adding basic protections like alerts and two-factor authentication can make a real difference. Catching suspicious activity early often determines whether a loss stays small or becomes life-changing.

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If scammers only need one piece of your personal information to get started, how confident are you that yours isn’t already out there? Let us know by writing to us at Cyberguy.com

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