We all know that the recent lithium battery plate shine, lithium batteries because of the advantages of high operating voltage, high energy density (light weight), no memory effect, long cycle life and pollution-free, become the main power supply for various types of electronic products, the market is very large, and thus the lithium battery materials plate all flew to the sky, but the market has ignored the necessary for each lithium battery "lithium battery protection plate ". A lithium battery is largely composed of two parts, in addition to the battery cell, but also need to be equipped with a lithium battery protection plate, so that the safety of lithium batteries is high, the practicality is strong.
However, the lithium battery protection plate and lithium battery cells, as well as the need to be activated, mainly because of the IC chip in the lithium battery protection plate, this chip is the core of the implementation of the entire protection function, because when charging the current are first passed through the lithium battery protection plate, when the current is within the permissible range of the protection plate can be passed, followed by the flow to the battery cells. To be exact, the current is first passed through the IC chip, so if this IC chip is not activated, the lithium battery protection board can not be discharged. So why the lithium battery protection board needs to be activated is this principle.
Lithium battery in the process of use, over-charging, over-discharging and over-current will affect the battery life and performance, serious cases will lead to lithium battery combustion, explosion, there are now cases of cell phone lithium battery explosion resulting in casualties, often IT and cell phone manufacturers to recall the lithium battery products. So each lithium battery must be installed a safety protection board, consisting of a special IC and a number of external components, through the protection loop to effectively monitor and prevent damage to the battery, to prevent overcharging, overdischarging and short circuit caused by the risk of combustion, explosion and so on. Therefore, the lithium battery protection board must be activated when in use to ensure safe use.
The activation of the lithium battery protection plate is quite simple compared to the lithium battery itself, the activation of the lithium battery protection plate only needs to be charged with DC voltage to complete the activation of the lithium battery protection plate, that is, after we buy a new cell phone, charging it, the lithium battery protection plate is also activated, of course, this activation method and the battery factory's comprehensive detector is a bit of a witch compared to the general Some manufacturers will short circuit the VSS and VM feet of the IC chip in the protection board to achieve the effect of activation, this activation effect is more effective, compared to the DC charging method of activation is also more professional.
