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A New Battery Built by Samsung Uses Graphene to Charge Five Times Faster
FASTER CHARGING
The Samsung Advanced Institute of Technology (SAIT) has developed new battery material, made from a “graphene ball,” which could potentially deliver charging speeds five times faster than today’s lithium ion batteries. Samsung announced the new material in a press release this past Wednesday, November 28.
But just how fast is this new material? Well, in theory, this graphene ball material only needs about 12 minutes to achieve a hundred percent charge. But it shouldn’t come as a surprise that this breakthrough material comes from graphene. The 2D-material has long been regarded as a wonder material because of its combination of unique properties. Graphene, among other things, is strong, durable, and highly conductive.
SAIT researchers, led by Son In-hyuk, developed a mechanism that allows for graphene to be mass synthesized into a 3D popcorn-like form using silica (SiO2). The graphene ball, in this technique, is applied to both the anode protective layers and the cathode materials in lithium-ion batteries.
THE BATTERY WE NEED
Samsung’s new battery material could be the breakthrough in battery technology that many have been waiting for, because the tech has essentially remained the same for several decades. Lithium-ion batteries power many of our devices, from smartphones and smart gadgets to electric vehicles (EVs). Batteries also play a crucial role in reimagining the energy grid. Together with increased capacity, faster charging time is one of the improvements that today’s batteries need.
Aside from faster charging, batteries built from this graphene ball can maintain highly stable temperatures at 60-degrees Celsius, according to the SAIT researchers who published the details of their work in the journal Nature Communications. Such stable battery temperatures are crucial for EVs, Samsung explained.
“Our research enables mass synthesis of multifunctional composite material graphene at an affordable price,” In-hyuk, explained in the press release. “At the same time, we were able to considerably enhance the capabilities of lithium-ion batteries in an environment where the markets for mobile devices and electric vehicles is growing rapidly. Our commitment is to continuously explore and develop secondary battery technology in light of these trends.”
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WhatsApp: Here's a List of New Features Introduced and Spotted in 2017
The biggest change is that YouTube videos will now play directly inside the messaging app, in picture-in-picture mode.
When you tap on a YouTube link in a conversation, you’ll no longer get kicked out of WhatsApp and and forced into the YouTube app.
Instead, the YouTube clip will appear within a small floating window on your screen.
This means you can watch YouTube videos and message your friends at the same time. You can also jump between different chats without the clip pausing or closing.
It’s a good change, which will save you from switching between the two apps every time someone sends you a YouTube link.
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Facebook trials Olx-like Marketplace feature in India
Facebook has introduced a new feature in India on its app that allows buying and selling of used goods. The 'Marketplace' feature on Facebook is put on a trial run in Mumbai and if all goes well it will be spread across the country.
Marketplace feature on Facebook allows you to post add for used products or browse through ones posted by others, similar to what online classifieds Olx and Quickr do. Marketplace is already available in 25 countries including US and recently rolled out in 17 of them including Germany, France and UK.
The feature will work similar to apps like Quikr in India, but Facebook will be able to leverage a large user database already sitting in its servers. Facebook says that each month a quarter of its 2 Bn active monthly users are visiting Facebook groups globally that have items to buy and sell .
On the Facebook app, a "shop" icon at the bottom will fire the Marketplace transporting users to a platform to list or search for items on sale in their neighborhood. Upload a photo of the item you want to sell and interested buyers in your area can contact you to get more details. You can also browse items to buy from different categories like Household, Electronics, and Apparel.
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