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A battery breakthrough made by researchers in Japan could pave the way for next-generation batteries to finally enter mass production. A team from Tokyo University of Science discovered a way to build sodium-ion batteries with an equivalent performance to conventional lithium-ion batteries. Lithium-ion, or li-ion, batteries are found in everything from electric cars to smartphones, however they are made from difficult-to-extract and expensive resources, while also containing liquid electrolytes that are toxic and flammable. By contrast, sodium-ion batteries are cheaper, offer stability against extreme temperatures, and pose no risk of overheating. Until now, their main limitation has been a lower energy density compared to li-ion batteries. To overcome this limitation, the scientists developed a high-capacity electrode made from nanostructured hard carbon, which they were able to optimise and then incorporate into an actual battery. The researchers said the new electrodes deliver “unprecedented performance” and offer a viable option for producing next-generation batteries for consumer electronics and electric vehicles. “This value is equivalent to the energy density of certain types of currently commercialised lithium-ion batteries... and is more than 1.6 times the energy density of the first sodium-ion batteries, which our laboratory reported back in 2011,” said Professor Shinichi Komaba from Tokyo University of Science. The breakthrough could also make sodium-ion batteries viable for other practical applications, such as low carbon footprint energy storage systems for solar and wind farms. The research was detailed in a study, titled ‘New template synthesis of anomalously large capacity hard carbon for Na- and K-ion batteries’, published in the journal Advanced Energy Materials. Read More Breakthrough solar system outperforms military-grade diesel generator

OpenAI CEO Sam Altman is set to testify before a Senate Judiciary subcommittee on Tuesday after the viral success of ChatGPT, his company's chatbot tool, renewed an arms race over artificial intelligence and sparked concerns from some lawmakers about the risks posed by the technology.

By Jody Godoy As FTX founder Sam Bankman-Fried prepares to takes the stand at his trial on charges

Apple has held its latest event, named “Wonderlust”, and released its most important products of the year. Chief executive Tim Cook and his colleagues revealed four new iPhones, and two new Apple Watches. But they also made a series of related announcements: about leather, AirPods and software, some of which came after the event. Here’s everything you need to know about all the new announcements from Apple – whether that was in the live stream or after. iPhone 15 The new base model iPhone was largely as expected. And it is familiar, too: in short, it takes the existing iPhone 14 and adds some of the features from the iPhone 14 Pro to it. It keeps the same basic design and materials, and two-lens camera setup. It adds the faster processor from the iPhone 14 Pro, as well as some of its camera smarts, and the “Dynamic Island” that gets rid of the ears at the top of the display. There’s a Plus model of this phone, too, that has a 6.7-inch display and a larger battery. It is otherwise identical. Read more. iPhone 15 Pro The Pro version of the iPhone 15 was a little more surprising and new – though only a little. The changes to the iPhone 15 Pro are relatively restrained. It adds new features to the camera: a new coating, and hardware and software tools that should make the pictures both better and easier to edit. It also gets a new faster chip and an “action button” on the side that can be programmed to do whatever you want. Most notable, perhaps, is the titanium material that will be used to make it. It adds a new look and makes the phone a bit lighter. Read more. Apple Watch Series 9 The new Watch is also mostly limited in its updates. They largely boil down to an improved processor and a better display. The improved processor adds a range of features, including better dictation and improved Siri. But probably most notable is a “double tap” option that lets people bring their fingers together to operate their Apple Watch without their hands. The display is both brighter and less bright, which means it should be easier to see in the sun and less shocking at night. Read more. Apple Watch Ultra 2 The Ultra 2 takes last year’s Ultra and puts this year’s developments into it. It has the same chip as the normal Watch – and the features that it brings – as well as its own brighter display. Read more. No more leather Two of the most notable announcements were about things being cancelled, rather than introduced. The first of them was leather. Apple will not use leather in any new products, it said. And so there will be new iPhone cases, straps and AirTag holders that will instead be made out of more sustainable materials. It was part of a broader sustainability focus during the event, which also included the announcement that the new Apple Watch is the company’s first ever carbon neutral product. Read more. And no more Lightning The other big removal was Lightning, the charging port that has been in the iPhone for more than a decade. Again, there’s something new in its place: USB-C. This was widely rumoured, after the European Union passed rules that required it, which Apple had originally opposed. Now, though, its presenting it as an upgrade, with better data connections and more compatibility. Read more. Updated AirPods After the event, the AirPods got an update. That is only minor: they too will get a new charging case that uses USB-C. Apple also noted that the shared connector now means that you can plug a USB-C wire into your phone, and then into your AirPods or Apple Watch, to charge them. But the AirPods are otherwise unchanged – and no other new products were released, either. New software release dates Also not mentioned in the event was the release of new software: iOS, WatchOS, MacOS and more. In press releases about their respective hardware, Apple announced when those updates would be arriving. Read more. Read More Here’s the new iPhone Pro, made out of an entirely new material Apple is changing the plug on the bottom of your iPhone Apple reveals when huge new iPhone update is coming Here is the iPhone 15 Apple to stop using leather in all new products Here’s the brand new Apple Watch

Germany’s ruling coalition agreed on an expanded package of tax-relief measures for companies worth about €7 billion ($7.6

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