Imagine one day you can wrap a gift with wrapping paper that read "Happy Birthday!" which can be lit without a conventional battery as we know it, because the paper itself the batteries. That is one possible use of new batteries are made from cellulose, ie paper material, so that environmentally friendly because it can be parsed natural.
The scientists from various countries are trying to develop a battery thin, flexible, lightweight, inexpensive, and environmentally friendly, made entirely of non-metallic materials. One of the most promising materials for polymer beterai is powerless-between. However, until now it is less practical materials used as batteries, because of its ability to store electrical charges are often reduced in line usage.
Easily made
Well, the key to making this new battery turns green algae Cladophora is often considered an interloper. Freshwater plants like this hair piled up and rotting away in the world, disturbing sights and smells sting.
These algae have an unusual type of cellulose, with the cellulose surface features are very broad, which is 100 times the cellulose paper. This enabled the researchers to double the amount of polymer-power delivery, so the battery is more effective to charge it again, better able to withstand and distribute electrical power.
"We have long expected useful invention of algal material and now it is indeed possible," said researcher Mary Strømme, nanotechnology experts from the University of Uppsala, Sweden. "This opens new possibilities for large scale production for the energy storage system environmentally friendly, cost effective, and lightweight."
This new type of battery consists of thin layers of polymer-power between the size of only 40 to 50 nanometers, or from the algal cellulose fibers wrapping the width of one meter per billion, only 20 to 30 nanometers wide which is taken to be a sheet of paper.
"It's very easy to make," said Stromme.
Fast rechargeable
This new type of battery electric power can contain 50 to 200 percent more than the battery-powered polymer among other similar, and if it later has been optimized, maybe even can compete with lithium battery. These batteries can be recharged far more quickly than ordinary rechargeable batteries - compare it takes at least an hour a normal battery to be recharged, while the new battery is only need 11 seconds to eight minutes.
Dala development, this new battery also shows the rapid progress in terms of ability to withstand power line usage. When compared with other polymer batteries that power of detention capacity down 50 percent after 60 cycles of fill-wear, this new battery only lost 6 percent after 100 cycles.
"In the thick polymer layer, it is difficult to recharge all the material properly, instead it turns into an insulator material (barrier), so capacity is actually reduced," said Gustav Nyström, an expert in electro chemistry from the University of Uppsala. "If the thin layers, all parts can hold and release resources properly."
Flexible electronics
The researchers suggested that their batteries used seems suitable for flexible electronic devices, such as fabric and wrapping materials.
"We do not intend to replace or lithium ion battery - we want to find the use of a battery that does not exist," said Strømme. "For example, the battery can be charged under the wallpaper to light sensors in your home. Or how about when placed in your clothes, and used to sweat scanners to check if you are sick?"
The direction of future research are also considering how much battery power is missing from this over time, which is a common problem for polymer batteries and other types. The study also saw the possibility of enlarging the scale of this new type of battery, "We'll see how it was made when the battery on a massive scale."
The researchers describe their latest results in the journal entitled 'Nano Letters. "
No comments:
Post a Comment