Analysis of the causes of lithium battery explosions
In general, people do not associate cell phone explosions with batteries. But in reality, the real cause of cell phone explosions is the battery. Professionals believe that the root cause of battery explosions is the use of counterfeit and substandard products. Experts said that most of the batteries currently in use are lithium batteries, and there are about three reasons for battery explosions:
(1) The reasons for the battery itself. Due to internal defects in the battery, the battery itself explodes without charging or discharging;
(2) The battery core is overcharged for a long time. Lithium batteries can discharge instantly and generate a large amount of current under special conditions or environments of temperature, humidity, poor contact, etc., causing spontaneous combustion or explosion;
(3) Short circuit. It's less likely. Additionally, consumers placing their cell phones near high temperature or flammable objects can also cause explosions. Before the cell phone battery is officially assembled, it must undergo professional performance testing. As a connection test module, the shrapnel microneedle module has a good conductive effect. The possible value range in the pitch field is between 0.15 and 0.4 mm. The test is stable. Reliable, there will be no broken needles or stuck pins!
Lithium ion batteries contain electrolyte, which is relatively dangerous. Lithium polymer batteries use polymer electrolytes, which have a long lifespan. life, are safe and will not cause any problems. There are security risks such asbulged acs, so polymer batteries are definitely better.
Detailed information:
Lithium polymer battery
According to the electrolytic materials used in lithium - Ion Batteries Different lithium ion batteries are divided into liquid lithium ion batteries and polymer lithium ion batteries) or plastic lithium ion batteries. The positive and negative electrode materials used in polymer lithium ion batteries are the same as liquid lithium ions. Positive electrode materials are divided into lithium cobalt oxide, lithium manganate, ternary materials and lithium iron phosphate materials. The principle of operation of the battery is also basic.
The main difference is the electrolyte. Liquid lithium-ion batteries use liquid electrolytes, while lithium-ion polymer batteries use p-electrolytes instead.solid polymers. This polymer can also be in the dry state. be "colloidal", and currently most use polymer gel electrolytes.
Lithium battery
“Lithium battery” is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-ionic electrolyte solution. watery. Lithium metal batteries were first proposed and studied by Gilbert N. Lewis in 1912. In the 1970s, M. S. Whittingham proposed and began studying lithium-ion batteries. Since the chemical properties of lithium metal are very active, the processing, storage and use of lithium metal are subject to very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become mainstream.