Why Li-ion Batteries explode into flames

Written by IT News on 8:07 AM

Lithium-ion batteries are rechargeable battery type, which work by exploiting the movement of lithium ions between the anode and cathode. Because of their low weight to power ratio, the lack of effect of memory and slow absorption of tax loss, they are currently the most popular type of rechargeable batteries available on the market. They are most often used to power portable electronics, but their applications may reach as far as the automotive and aerospace industries.

Li-ion batteries also have a bad habit of satiated in flames or explosion even if mishandled, which is not very fun when the equipment drive costs several thousand dollars. For two years, large companies such as Apple or Toshiba I felt the full impact of such anomalous behavior when they were forced to recall and replace the huge number of Li-ion batteries because of fire hazards.

But what defines Li-ion batteries to heat up to dangerous levels? To understand why, one must first know some basic concepts regarding the batteries. Typical batteries have two main terminals, the anode (positively charged) and cathode (negative charge). Electricity is stored inside them ELECTROCHEMICAL compounds that mix, to release free electrons, which are then collected in cathode and provide powered device in the form of electric current.

The flow of electrons is through an electronic device and then anode, thus forming a loop. Batteries are classified according to type of ELECTROCHEMICAL used to produce it, in the case of Li-ion battery that is fluid containing lithium compound, which is also extremely flammable. In addition, during the manufacturing process some metal fragments have also been created within ELECTROCHEMICAL liquid and although they may not be completely eliminated, their size and number may be limited during the proceedings.

In the anode and electronic battery regions are isolated from each other with a separator, which can be easily punctured by metal fragments, if the battery experiences increase in temperature. When this happens brief compound has been found between the anode and cathode, leading to further increases in temperature.

Batteries are at risk of replete of melting or flames. Furthermore, since the container holding the ELECTROCHEMICAL is completely sealed from the average, the excessive rise in temperature may cause it to give way under pressure and explode.