capacity slim, tall, long life, these are the outstanding characteristics of lithium batteries. For this reason, lithium-ion battery, which has rapidly replaced the metal hydride, nickel cadmium, nickel role of laptop batteries and other portable devices for optimal battery life. Recently, continuously exposed exploding laptop, the 371785 001 battery life of laptop and again at the top, you can make this lingering fear, the source of lithium in the end is the motor or pump time?
Study to find the mystery of the fire of the battery
In general, the current notebook batteries have greater protection.
Not just serial / parallel composition of multiple batteries, the circuit also contains two modules: circuit board protection (protection PCB) and the Smart Battery Module Board meter module, its design includes a battery protection IC protection class (to avoid over charging the battery, along discharge, short circuit), the second-level protection IC (to prevent a second over-voltage), fuses, LED indicators, temperature control and other components.
In the mechanism of multi-level protection, even in the charger, laptop exceptional circumstances, the laptop's battery can only be converted into automatic protection status, if the situation is not serious, often continue working after reconnecting not explode. Laptop battery explosion against serious matters, the reporter sought the advice of professionals and the power of a well-known manufacturer of design engineers.
According to the analysis, nothing less than the explosion of the lithium battery caused by a short circuit or overload, the more likely is that when one is in the manufacture of lithium batteries, because the manufacturing process itself is flawed, leaving the there are problems of product safety that can occur at any time, as it should of isolation between the two poles of metal powder or copper foil and aluminum burr hole in the membrane, resulting in a short bus. The first situation is more serious, directly cause a short circuit, and a lot of heat, resulting in vaporization of some of the electrolyte, the battery cover stretch.
Furthermore, there is a special case, charger, desktop or laptop for special reasons, the lithium battery to provide instant high voltage / high current caused by severe overloading, such as the charging voltage by a surge of 12.9 V 12. 6V or even higher, then there will be a high charge current generated in the circuit must move out of the battery charge current, but because of some lithium battery load voltage, current design protection is weak, which may cause damage to the battery protection IC, so the dell battery cf623 to protect the function of the damage, the load on the needle after pole part of the crystallization of lithium metal, drilling point led to a series of micro short circuit, causing the battery temperature increases gradually, until finally exploding, the fire is occurring, this is a lot of laptop battery "hot" main reason.
Study to find the mystery of the fire of the battery
In general, the current notebook batteries have greater protection.
Not just serial / parallel composition of multiple batteries, the circuit also contains two modules: circuit board protection (protection PCB) and the Smart Battery Module Board meter module, its design includes a battery protection IC protection class (to avoid over charging the battery, along discharge, short circuit), the second-level protection IC (to prevent a second over-voltage), fuses, LED indicators, temperature control and other components.
In the mechanism of multi-level protection, even in the charger, laptop exceptional circumstances, the laptop's battery can only be converted into automatic protection status, if the situation is not serious, often continue working after reconnecting not explode. Laptop battery explosion against serious matters, the reporter sought the advice of professionals and the power of a well-known manufacturer of design engineers.
According to the analysis, nothing less than the explosion of the lithium battery caused by a short circuit or overload, the more likely is that when one is in the manufacture of lithium batteries, because the manufacturing process itself is flawed, leaving the there are problems of product safety that can occur at any time, as it should of isolation between the two poles of metal powder or copper foil and aluminum burr hole in the membrane, resulting in a short bus. The first situation is more serious, directly cause a short circuit, and a lot of heat, resulting in vaporization of some of the electrolyte, the battery cover stretch.
Furthermore, there is a special case, charger, desktop or laptop for special reasons, the lithium battery to provide instant high voltage / high current caused by severe overloading, such as the charging voltage by a surge of 12.9 V 12. 6V or even higher, then there will be a high charge current generated in the circuit must move out of the battery charge current, but because of some lithium battery load voltage, current design protection is weak, which may cause damage to the battery protection IC, so the dell battery cf623 to protect the function of the damage, the load on the needle after pole part of the crystallization of lithium metal, drilling point led to a series of micro short circuit, causing the battery temperature increases gradually, until finally exploding, the fire is occurring, this is a lot of laptop battery "hot" main reason.
