EARTH DAY for GLOBALWARMING

Imagine that someday you could wrap a gift with wrapping paper that read "Happy Birthday!" that can be lit without conventional batteries that we know so far, because the paper itself the batteries. That's one possible use of new batteries are made from cellulose, ie paper material, so that environmentally friendly because it can be decomposed by nature.

The scientists from various countries are trying to develop a battery of thin, flexible, lightweight, inexpensive, and environmentally friendly, made entirely from non-metallic materials. One of the most promising materials for polymer beterai is helpless-inter. However, until now this material is used as the battery is less practical, because the ability to store electrical charges are often reduced due to wear.

Made easy

This new battery-making materials found Cladophora green algae that is often considered a bully. Freshwater plants like this hair piled up and rotting away in the world, disturbing sights and smells sting.

This alga has an unusual type of cellulose, the cellulose surface features a very spacious, which is 100 times the cellulose paper. This enabled the researchers to double the number of inter-polymer-powered, so the battery is more effective to be filled up again, better able to withstand and distribute electric power.

"We have long expected useful invention of algal material and now it is reasonably 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 that is environmentally friendly, cost effective, and lightweight."
This new type of battery consists of thin layers of polymer inter-sized power-only 40 to 50 nanometers, or from the algal cellulose fiber wrappers one at a billion yards wide, just wide as 20 to 30 nanometers which is taken to be a sheet of paper.

Fast rechargeable

This new type of battery can carry electrical power from 50 to 200 percent more than the battery-powered polymer among other similar, and if later been optimized, it may even be able to compete with lithium batteries. These batteries can also be recharged far more quickly than usual battery refills - compare a normal battery takes at least an hour for recharging, while a new battery is only needed 11 seconds to eight minutes.

DaLA development, new battery has also shown remarkable progress in terms of its ability to hold power line usage. When compared with other polymer batteries that power of detention capacity by 50 percent after 60 cycles-to-use content, this new battery only lost 6 percent after 100 cycles.

"In the thick polymer layer, it is difficult to recharge all of the material properly, instead it turned into an insulator material (barrier), so its capacity actually decreased," explained Gustav Nystrom, an expert in electrochemistry from the University of Uppsala. "If the thin layers, and can accommodate the entire issued share power well."
Flexible electronics

The researchers suggested that their batteries dapakai seems suitable for flexible electronic devices, such as fabrics and packaging materials.

"We do not intend to replace or lithium ion battery - we want to find a battery that does not exist," said Strømme. "For instance, 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 scanner to check if you hurt?"

Future research directions are also considering how much battery power is lost from this over time, which is a common problem for batteries and other types of polymers. The study also looked at the possibility enlarge the scale of this new type of battery, "We'll see what happens when the battery is made in very large scale."