A Rice University chemist found that adding asphalt to lithium batteries allowed the battery to go "from zero charge to full charge in five minutes, rather than the typical two hours or more needed with other batteries."
The Rice lab of chemist James Tour developed anodes comprising porous carbon made from asphalt that showed exceptional stability after more than 500 charge-discharge cycles. A high-current density of 20 milliamps per square centimeter demonstrated the material’s promise for use in rapid charge and discharge devices that require high-power density. The finding is reported in the American Chemical Society journal ACS Nano.
As a method of testing battery output, it seems a bit elaborate, but racing AAs down coiled copper tubes looks like a lot of fun. Mr. Michal: Duracell, Varta or Energizer, Which Will Be the Best? In this video you’ll see two races between aa batteries. Infinite loop and DRAG RACE. How to make the […]
When you pay 1,000 bucks for a thing, it’d be nice if it, you know, does what it’s supposed to. In the case of a smartphone, that means taking calls, accessing the Internet, taking great photos, downloading apps–the usual. Arguably, none of these abilities baked into our pocket computers is as important as its being […]
I am proud of me. My heart rate tracker, and my cadence sensor, both need their CR2032 batteries replaced from actual USE!
Need a boost on that resume? Get a valuable tech education on your own time with these eBook bundles. They contain guides from Packt Publishing that cover everything from game development to machine learning. The Complete Mobile App Developer eBook Bundle It’s a veritable gold rush in the App Store these days. Get in on […]
Vinyl is officially back. People are hearing the proof behind the initial “retro” excitement: that records really do have a richer sound. And if you haven’t switched to old-school records for serious listening, it’s a new golden age. Why? Because quality turntables like the Altec Lansing ALT-500 are finally available to a market other than […]
Between all of our apps, streaming devices, Bluetooth speakers, and energy-sucking decorations, paying for utilities each month can be…brutal. In fact, the average household spends roughly $70 a month on the water bill alone. That number might not seem terribly significant, but when you add it up, that’s $840 a year — a pretty significant […]