A materials for battery!

Science fiction has created many things that are repaired by themselves.Thinks to their repaired, the Dell vostro 1500 battery appeared.Think of the first Star Trek movie, in which a race of conscious machines Voyager 2 capture and interpret the message contained in the contact and the human race. This race is able to repair itself automatically. After become the Borg, the nemesis of the second series Star Trek: The Next Generation, but that's a topic for another post.

At least for our Dell inspiron e1505 battery or notebooks or laptops computers, automatic repair is a reality. Technology is not imagined, but the application of basic principles of materials and common sense.

A materials engineer at the University of Illinois, United States, invented a method by which a Dell inspiron 6400 battery can repair itself. I think most unfortunate experience we have found that when we need to speak for our mobile, it appears that the battery is dead. Although the recharge in the morning or all night, only been a couple of hours and we must charge the battery again. We can say that the battery pack is dead. In reality, the most likely to have happened is that the negative terminal of the battery has worn out. This terminal (the anode of the battery) suffers from small cracks and fractures in the structure of graphite which prevents him from maintaining a good contact with metal parts that make up the battery terminal. Thus it is that both the battery can not deliver stored electrical charge and can not store enough power to function properly.

The solution of the engineers at the University of Illinois was simple and elegant. Small microspheres introduced into the graphite anode material. These microspheres are hollow and carries within an alloy of indium gallium arsenide, the same material used to manufacture LEDs. but in such a proportion allows the alloy behaves like a liquid metal. As you begin to fracture the graphite by the use, the beads also break, spilling the contents of them in the material, and when liquid, tends to enter the cracks, sealing them and allowing the Dell inspiron 1720 battery to maintain its functionality.

Another thing that was able to limit the risk exists that a fire a battery short circuit. When you demand a lot of energy to the battery, it tends to be heated by electric current flowing through it and its terminals. If this energy demand continues or increases, the heat generated can accumulate and cause a fire can be significant, not only of losing the team, but even to harm users. Remember the AT & T phones exploding a few years ago because of flaws in its battery.

The simple solution was also implemented. It coated the battery terminals with microspheres of polyethylene, which at 105 degrees celsius are melting, and then form a protective layer around the terminal of the Dell inspiron e1705 battery and prevent the short circuit to produce the fire.

We hope that these advances in the batteries will soon be able to reach the consumer market, making life easier for people.

This article via: shoppingtimes.