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Donut Lab’s ‘solid-state’ battery exposed as regular li-ion in damning investigation

A comprehensive investigation by battery researcher Ziroth, involving over 20 independent battery experts, has produced what amounts to definitive proof that Donut Lab’s “miracle” solid-state battery is actually a lithium-ion cell. The company raised approximately $25 million from over 1,300 mostly small investors based on claims that now appear to be false.

The investigation traces the battery technology back to a German company called CT Coatings, reveals a web of companies hiding behind aggressive NDAs, and presents electrochemical evidence — including voltage curves and cell expansion data — that conclusively identifies the tested cell as lithium-ion, not the revolutionary sodium-ion solid-state chemistry Donut Lab promised.

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EcoFlow Early Prime Day power station deals up 62% off + bonus savings and FREE gifts/rewards from $149, more

If you weren’t aware, at the end of June will be the biannual Prime Day Sale event, and leading today’s Green Deals is the freshly launched EcoFlow Early Prime Day Sale with up to 62% discounts on a large array of power stations and accessories that is giving us some of the best prices yet in 2026 – plus, bonus extra savings codes, FREE gifts, EcoCredit rewards, and much more – all starting from $149. Running as part of that kick-off is EcoFlow’s latest 48-hour flash sale with up to 50% savings on three power stations and a dual extra battery bundle, including the 2,048Wh DELTA 3 Max Portable Power Station with a 20W GaN charger at $779. We also spotted the best prices of the year on Worx’s adaptable 40V 17-inch Intellicut mower bundle with 2x batteries, Greenworks’ 80V 10-inch pole saw, and more. We also have the hangover deals from last week collected down at the bottom of the page, rounded up together in our latest Electrified Weekly edition.

Head below for other New Green Deals we’ve found today and, of course, Electrek’s best EV buying and leasing deals. Also, check out the new Electrek Tesla Shop for the best deals on Tesla accessories.

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China’s EV shift cut pollution enough to prevent 262,000 deaths

China’s rapid switch to electric and other new energy vehicles cut urban air pollution enough to prevent an estimated 262,000 premature deaths, according to a new peer-reviewed study published in Nature Health.

It’s some of the strongest real-world evidence yet that electrifying transportation delivers measurable public-health benefits, not just lower tailpipe emissions on paper.

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The real reason why e-bike throttles have gotten worse

I’m going to say something that may make me sound old, but I just don’t care. E-bike throttles used to be better in the old days.

Not every e-bike throttle, of course. There have always been good ones and bad ones. But if you’ve been riding e-bikes for a decade or more, you’ve probably noticed the same trend I have.

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Here are the best electric bikes you can buy at every price level in October 2026

I’ve spent countless hours here at Electrek doing detailed hands-on testing of hundreds of electric bikes. Through thousands of miles of riding, I’ve been fortunate to learn these e-bikes inside and out, top to bottom and front to back. That long-term experience with real-world e-bike testing has helped me find the best electric bicycles on the market for just about any budget.

Below are some of the top e-bikes I’ve hand-tested for every price range, current as of October 2026. Fall weather is upon us, bringing cooler temps and beautiful views, so it’s a great time to hop in the saddle and get out there riding! Check out the awesome e-bikes below, any one of which could become your next electric bike.

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One Detroit-area Hyundai dealer wants $400 to charge your car

Drivers opening an EV charging app for the first time today will be presented with thousands of so-called “public” chargers at local car dealers. Once they arrive, however, the store’s customers, store hours, security gates, and Wild West pricing can turn what should be a routine charging stop into a frustrating ordeal. For first-time EV drivers, that doesn’t just reflect poorly on the dealer – it reflects poorly on the EV, itself. And we need to fix it.

UPDATE 05SEP2026: another Hyundai store, another $418 bill.

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