Get a primer on the basics of supercapacitors, their functionality, and which applications they’re best for. The current trend of supercapacitors is to replace rechargeable batteries, offering a new method of storage for energy based on nanotechnology. Unlike batteries,supercapacitors can recharge within seconds and withstand virtually unlimited charge cycles.Supercapacitors have a higher energy density than conventional capacitors, but a lower energy density than the standard batteries used in electronic products such as IoT devices. #supercapacitor #nanotechnology #battery #electronics #science #technology #IoT #physics (...)
iSad : an #upgrade or ’hang on’ dilemma
iSad: an upgrade or ‘hang on’ dilemmaSitting on the fence for two years till #apple gave me a gentle pushI first felt the need to upgrade my #ipad on Sep 13, 2016, the day iOS 10 launched. That was when I finally accepted that Apple wasn’t going to give any more OS upgrades for my iPad 3. However, there wasn’t anything really serious lacking in my iPad to justify upgrading to an expensive new iPad. Besides, my iPad and I have been together for six years now. So I’m pretty attached to it, and didn’t really feel good about breaking up with it. So I decided to hang on to it, till I got a good deal on the latest iPad model.But this turned out to be a neverending cycle. The more I waited for a price drop, the closer I got to the launch of the newer iPad model, and the more I felt like waiting a bit (...)
The dangers of Li-ion batteries you might not be aware of
Since their first introduction in 1991 by Sony, Lithium-ion (Li-ion) batteries have become an integral part of our daily lives. Their rechargeable properties make them ideal for an array of devices, including the smartphones and laptops we use every day. Despite this, Li-ion batteries are still criticized because of the potential safety concerns that they pose.According to #battery University, there was a huge recall of rechargeable Li-ion batteries in 1991. The inherent instabilities of lithium metal, particularly during charging, created early problems. In some cases, batteries would release hot gases, which were enough to cause burns. In order to combat the problem manufacturers developed Li-ion batteries without any metallic properties, making them far safer to use.This has not (...)
Alphabet’s company X works on project “Malta”, a low-cost energy storage solution using salt and antifreeze.
Malta’s solution is to contain just captured electricity as thermal energy. The work behind it comes from Nobel prize-winning Stanford physics professor Robert Laughlin who created as “theoretical system that stores electricity as heat (in high temperature molten salt) and cold (in a low temperature liquid similar to the antifreeze you have in your car).”
Iron-chromium flow battery makes energy storage competitive with peak-load natural gas electricity generation
▻http://spectrum.ieee.org/energywise/energy/the-smarter-grid/new-flow-battery-aims-to-replace-gas-plants #energy #battery #wind #solar #power
Android’s #K-9 #Mail #battery life and Dovecot’s Push-IMAP | Peter Kieser
I am using K-9 Mail on my #Android phone, and would like to make use of the IMAP PUSH feature but I found it consumes far too much battery. In #Dovecot 1.2 when you initiate IMAP IDLE via your IMAP client (eg. K-9 Mail) Dovecot sends a message every 2 minutes stating “OK Still here”, this causes the mobile data connection to have to wake up and consumes excessive amounts of battery.