Many of our electronics today rely on batteries, from laptops to phones to smart home appliances to even cars. It’s almost ironic, then, that these critical batteries are also one of the most dangerous things we keep near our bodies, not to mention a hazard to the health of the planet as well. From the way they are made to the unsustainable metals and chemicals they contain, batteries, by nature, seem opposed to life itself.

Green energy like solar and wind can go only as far as recharging batteries, but we still need these volatile objects to power devices directly. This innovative battery, however, attempts to reinvent batteries from the ground up to provide true sustainable power to the point that they can even be broken down as compost. Even more intriguing, they’re made of materials you’d least expect to find in batteries: paper and water.

Designer: Flint

Technically speaking, the batteries aren’t made of the same kind of paper you write on or read from. It actually uses cellulose as the structural backbone and separator of the battery, an abundant material derived from plants and also used in paper, hence the name. As for water, it’s used as the foundation for the electrolytes that actually carry the electrical flow between the zinc-based anode and the manganese-based cathode, both of which are non-reactive, safe, and commonly found everywhere.

This unusual composition for a battery yields many benefits beyond simply being made of sustainable materials. For one, the battery has unbelievable resilience and can still output power even when cut in half, let alone not explode in your pocket when punctured. It’s also impervious to fire since it uses water-based electrolytes. This practically removes the need for those fancy but complicated and expensive cooling systems in phones and laptops, presuming they get used in those devices. The batteries can also be folded and bent safely, finally realizing the dream of flexible batteries.

The Flint Paper Batteries are advertised to have the same performance in terms of output and longevity as typical toxic rechargeable batteries. And yes, they’re rechargeable as well. They won’t live forever, though, and when they’ve finally lost their charge for good, simply removing the vacuum-sealed casing starts the natural degradation process that breaks them down into harmless components.

It all sounds idyllic but the technology is not completely ready for mass consumption just yet. One of the biggest hurdles that still needs to be overcome is mass production, and Flint’s creators are planning on using currently existing lithium-ion battery manufacturing processes in order to minimize production and adoption costs. When that happens, we could finally take a major step forward in running not only on green power but also on safe and recyclable batteries as well.

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Nobody ever bought a smartphone because of its screen. I’m not talking about foldables, but rather about the regular ‘candybar’ smartphone. The reason you choose a smartphone is for its camera system, its battery life, its processor, its charging speed, its AI features, or its OS. The screen is just one of those aspects that you take for granted… but what if I told you I saw a phone at TCL with a screen so good it’s the highlight of the entire phone? The phone in question is the TCL 50 Nxtpaper 5G phone, and what really sets this phone apart from others is how spectacular its screen is. At first glance, the screen looks like a rather simple matte display, but flip a button on the side, and it magically goes from color to monochrome, transforming into a bonafide electronic ink display that is highly responsive, but has immaculate contrast, and a battery life nearly 7x more than your regular phone. The display is really this phone’s highlight, and shows how TCL’s figured out a compromise between phones and e-ink tablets. The TCL 50 Nxtpaper is a phone when you need it, but hit that switch and you go into easy-reading tablet mode, with a nearly 7-day battery life thanks to the monochrome nature of the display.

The Nxtpaper Display: A Phone Screen That Feels Like Paper

For anyone tired of glossy screens, blinding brightness, and eye strain, TCL’s Nxtpaper technology is a welcome change. The 6.8-inch screen has a matte, anti-glare surface designed to reduce blue light and deliver a paper-like experience, ideal for reading and prolonged use without causing eye strain. Whether you’re reading e-books, scanning through long documents, or even just scrolling social media, the Nxtpaper display reduces the strain that typical LCD and OLED screens can cause.

Unlike traditional smartphone displays, Nxtpaper uses a layered design that reduces blue light by up to 61%, helping prevent eye fatigue. This isn’t just a standard “night mode” either — the display is engineered from the ground up to deliver a paper-like viewing experience that’s easy on the eyes at any time of day. The anti-glare surface also means no more squinting at your phone on a sunny day or awkwardly tilting it to avoid reflections. Text and icons are visible with immense clarity, echoing the feeling of an e-ink screen like the one you’d see on a Kindle.

Despite its paper-like qualities, the Nxtpaper display doesn’t sacrifice color or usability. It’s still a full-color display, and it handles everything from photos to videos smoothly. TCL seems to have struck a balance here, making it a perfect option for people who need their phone for more than just reading but still want that e-paper feel.

Max Paper Mode: Battery Life Like You’ve Never Seen

The Max Paper mode is where the TCL Nxtpaper 50 Pro is an energy-savings-beast. When you first hit the switch on the side, you’re offered an option between color mode, ink-paper mode (which offers a responsive e-paper experience), and Max Paper mode. In the latter mode, the phone dials back performance, display refresh rates, and power-hungry features to turn it into a near e-reader. TCL promises up to one week of battery life when this mode is activated — a remarkable feat for any smartphone.

Max Paper mode works by toning down the display and restricting background processes, essentially transforming the phone into a low-power reader. It’s the perfect solution for those times when you just want to get through a book, read articles, or browse documents without worrying about battery drain. Imagine going on a week-long trip without needing to pack your charger — Max Paper mode could make that a reality. In Ink Paper and Max Paper mode, the phone’s home screen even tells you exactly how many hours worth of battery you’ve got, and it’s honestly stunning to see a day-long smartphone suddenly transition into a device that can last over a hundred hours.

Of course, when you want to switch back to full power for gaming, videos, or multitasking, the phone is more than capable. But for users who want to extend their battery life and spend time in a more relaxed reading environment, this feature is a game-changer.

A Practical Smartphone for Everyday Use

The 50 Nxtpaper phone isn’t just about battery life and an eye-friendly screen. It’s a full-featured Android phone that covers all the basics. Powered by a MediaTek Dimensity 6300 processor, it comes with 8GB of RAM and 512GB of internal storage, which can be expanded with a microSD card. It runs Android 14 and is promised to get at least two major OS updates, so it’s future-proof for the next few years.

On the camera front, the 108MP main sensor is versatile, delivering high-quality shots with ease. It’s backed by an 8MP ultra-wide and 2MP macro lens, which offer flexibility for various shooting scenarios, whether you’re capturing landscapes or detailed close-ups. On the front, a 32MP selfie camera ensures crisp photos and video calls.

Other features round out this package nicely, including dual stereo speakers with DTS 3D Boom Sound for immersive audio, 33W fast charging to get you back up and running quickly, and NFC support for contactless payments. Security-wise, the phone includes both a side-mounted fingerprint sensor and face unlock for fast, secure access.

Final Thoughts: A Niche, But Useful Phone

The TCL Nxtpaper 50 Pro might not be the device that makes waves for its performance or gaming chops, but it’s not trying to be. Instead, it’s aiming at a niche audience: people who care about eye health and battery life more than shiny OLED displays and top-tier processors. The Max Paper mode could be a revelation for those who find themselves drained — both figuratively and literally — by their current smartphones. Having received a bunch of awards for just how spectacular the screen is, I sincerely hope TCL manages to make this click. I honestly would love to see smartphones trying new innovations like this rather than bending and folding thrice over like that tri-fold phone that TCL’s rumored to also be working on.

The post TCL’s latest phone has a 1-Week Battery Life, and a VERY interesting new Display: Hands-On at IFA 2024 first appeared on Yanko Design.

The number of coffee chains spread around the world is undeniable proof of how much people desire or even thrive on the beverage. Unfortunately, that number is also an indirect testament to the waste that the industry produces, especially when it comes to to-go cups. The majority of these cups are made of plastic, though some brands and consumers are becoming wiser and opting for more sustainable drinkware. The problem, however, is when you need to carry more than one of these cups, usually in precarious trays or bags. A paper cup design concept tries to hit two birds with one stone, offering not only a more sustainable cup but a better way to hold and carry them.

Designer: Shenzhen Samore Design & Research

Although iced coffee to go is still usually served in plastic containers, unless you bring your own reusable cup, the more common hot beverage is thankfully put in paper cups with cardboard sleeves. Their designs are simple and handy for holding in one hand, but some people have the unfortunate task of buying for a group. Some stores offer cardboard trays or boxes for carrying two or four drinks at once, though some have to resort to bags that could let the coffee spill as you swing it while walking.

Neither are ideal solutions, especially for long-term use or reusable cups, so someone thankfully thought of a better and admittedly more aesthetic solution to this common problem. It doesn’t have a formal name yet, but the Accordion Paper Cup design offers a simple yet ingenious way not just to carry coffee paper cups but also to hold one in your hand. In a nutshell, the paper cup has a sleeve that expands upward, turning it into a bag of sorts.

The trick to this sleeve design is the accordion-like structure can easily expand and contract without changing its total mass. This same structure happens to also be a good insulator against heat, allowing you to wrap your hand around a hot cup. It might not be an intentional part of the design, but the alternating pattern of holes and divisions also makes it easier to grip an otherwise smooth and slippery cup.

The paper cup and its innovative sleeve are allegedly made of recyclable, renewable, and biodegradable materials, further driving home the idea of an all-in-one sustainable solution for to-go cups. But while the cup itself seems to have that brown hue typically associated with recycled paper products, the sleeve has a gradient that softly shifts from blue to brown, though other colors are also possible. Unfortunately, there is no word on whether this concept has any chance of becoming an actual product, but it’s definitely an interesting avenue to consider for large coffee chains.

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