11–15 of 15 posts
The article mentions cadmium. This is the first time that I've heard claims that liquid-crystal displays contain cadmium, and actually I can't find anything on the web about it (other than an old patent that I'm not sure is relevant today[1]). Does anyone know more? [1] http://www.google.it/patents/DE2837433A1?cl=en
That interview screams "snake oil" at me so hard it is hard to read. "It’s not a full capacity battery yet either." - So how much capacity is it? Pretty much everyone who has one of those USB charging IR helicopters from Think Geek have seen a battery that 'charges in 30 seconds' but how long would it run the phone? "The diameter of these sphere is 2.1 nanometer. Very, very tiny. And these can be used, because they h…
One of their cofounders has several published papers, patent applications, and such that sound like they give more details on some of the underlying science and technology. There's a list here: http://scholar.google.com/citations?sortby=pubdate&hl=en&use...
To make their video compelling they need to then start a program on the phone, and show it and a clock before the 'low battery' alert goes off. That will give a sense of how many watt-seconds they can hold in that volume.
[1] PDF: http://scitation.aip.org/deliver/fulltext/aip/journal/aplmat...
I did have a few doubts. If you watch the video, the battery is accessed via an app out side of settings. Maybe this is possible but its also not difficult to write an app that will mimic this. What I want to see is a DEAD phone that will not turn on charged to full.
Remember that story about a year ago about the high school girl who was going to charge your cell phone in 20 seconds? Same promise, same problem - supercapacitors charge really fast, discharge really fast, and just can't compete with a l-ion battery.
As soon as someone demos one of these batteries that can actually provide 10 watt-hours on a 30-second charge, call me. Until then, yawn.
If the internal resistance of the battery really is low enough for this to work then the discharge speed could also be a huge advantage for other applications. At the same time I see a huge safety issue: If I drop my phone in the water I don't want it to be able to transmit power that quickly.
The article mentions cadmium. This is the first time that I've heard claims that liquid-crystal displays contain cadmium, and actually I can't find anything on the web about it (other than an old patent that I'm not sure is relevant today[1]). Does anyone know more? [1] http://www.google.it/patents/DE2837433A1?cl=en
I believe they are referring to the use of Cd in displays that utilize Quantum Dots (QD-LED) not regular LED/LCD displays.