To understand how these batteries catch fire must understand how they work. At each end there is an electrode, a positive (raise) and a negative (lowering). Among these there is a liquid called electrolyte. When Charges Battery, Lithium ion moving the rise and when discharges moving toward lowering.
The problems begin when the lithium ion moving very quickly. The rate which the lithium ion batteries are charging are carefully selected so that there is no problem, and for this reason the batteries make enough time to charge.
If charges the battery very quickly, then lithium plates initiated and formed around the anode, creating a short and heat. The heat generated if it is sufficiently high, can ignite the flammable electrolyte, and as a consequence be caught fire the battery.
This is not the only problem, as well as deficiencies in construction, as small holes and small scrap metal can lead them to ignite. The small metal fragments can come into contact with other parts of the battery, creating and these short circuit inside the battery, and as a result at the end ignition. The larger the number of cells used in new devices, the greater the likelihood flashpoint.
Sometimes the batteries ignited by causes which do not necessarily have to do with construction issue of battery. These causes are the most difficult to find and to prevent. A FACT WHICH may create pressure on battery, as for example violent vibration or even the charging in degrees below zero, can lead to disaster.
A professor of materials technology, the Carnegie Mellon University, has said that "there is no way to tell when you buy a device, if damaged something or not the battery, since this will not happen before the battery charge and discharge several times ".
Of course the factories do rigorous quality checks on batteries, so as to prevent such incidents, but unfortunately cannot overshadow. Scientists however have not put their trust, since then looking
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