The occurrence of the cause of the explosion of mobile phones while in the Battery Charger

Most of modern gadgets including mobile phones use lithium ion batteries. Dubbed as the lithium ion battery power is derived from the flow of lithium ions (Li +) in the electrolyte solution. When we charge the battery, lithium ions flow from the cathode (positive pole) to the anode (negative pole). Instead, lithium ions flow from the anode to the cathode when the battery is working.

Electrolyte, anode, cathode and packaged in a pressurized container. Separator layer separates the anode and the cathode so that they do not intersect. Separator is made of super thin plastic with micro holes that just simply pass through the lithium ion. Well, the problem began when the battery is manufactured in the factory. There is dirt in the form of metal grains into the electrolyte solution. Not much, but it can cause havoc. The full story here.

At the time of charging, the battery temperature increases. Metal grains will run there here, like rice grains in the stirred water. If it is near the separator, metal beads that can tear the separator. As a result, there was a short circuit shorted alias between the anode and cathode. The next event is predictable.

Shorted to electric current flowing very fast. Temperature and pressure inside the battery will increase dramatically. The explosion is inevitable. Short circuit could also sprinkle sparks like a lighter. Cash only lithium salts that are easily burned burning great. Just imagine, the energy that can make the phone turn it off for days at a glance.

Lithium ion batteries now have to work harder. Demanded greater capacity, but its size should not be inflated. Inevitably, the factory battery separator using a thinner and more easily leak.

Some battery manufacturers desperate to eliminate non-standard circuit breaker by depressing prices. Without a little tool that, even though the battery still teraliri flow is fully charged. There was a so-called overheating or excessive heat. If it were so, the battery also has the potential to explode unexpectedly. Booom.

Figure 1. Offal lithium ion batteries. Anode and cathode sheets are rolled with a layer of separator in the middle. Everything is included in a container equipped with ventilation and electrolyte leak-proof ring.

Figure 2. Chemical reactions to make lithium ions (Li +) moves from the anode to the cathode. As a result, electrons flow from the anode and cathode as an electric current. While in-charge, the ions were sent back to the cathode by giving an electric voltage at the cathode.

Figure 3. Metal items that go into elektolit can tear when the battery separators manufactured, made a short anode and cathode are connected (shorted). Shorting also occur if the metal granules accumulate at the anode or cathode.