It hurts to charge the phone while playing

Someone asked on the Internet: Is there much damage to the battery during charging? Why can laptops be charged while playing, but mobile phones can’t? The answer below comes from a lithium battery practitioner.

Su Jie

This has nothing to do with whether the battery can be removed and used. Floating battery damage battery life is not necessarily more serious than the recyclable cycle life. Today, we do not have a simple industry quantitative analysis method, including floating experiments, high temperature accelerated aging life, no current national standards or standards, some factories , Doing relevant research in colleges and universities has little effect.

My method is still to use it in the way I think fit.

Consumer electronics, the battery is consumed, but in fact the cost is very low now. The lithium iron phosphate I play is distinguished from the ternary lithium of consumer electronics, but now the average price of lithium iron phosphate battery energy storage profession is 5 yuan/Wh (including 4-10 years warranty), electrical professional is basically 6 yuan / hour (usually 3 years warranty), consumer electronics, due to itCapacity and transportation, does not greatly improve the relationship between interests and groups, the cost is much lower than the above Two professions. So Xiaomi’s 10Ah power, which is 37Wh, is only 69, right? Similarly, mobile phone batteries, Android series, mainstream 3Ah, 10Wh, there are dozens of models.

The big factory has a black heart, and the accessories are very profitable, but in fact, one piece is not expensive. Does changing the battery once a year hurt your blood? In addition, the phone will run out within a year.

But it should be noted that the calorific value of a lithium battery during charging is higher than that during constant current discharge. Many mobile phones heat up when charging, and charging starts at this time. Then when I was charging my phone, I played a big game. The CPU and other components are also very hot, and some CPUs have a temperature rise of 40°C at full load. When the two are combined, the battery temperature can easily exceed 70°C or higher. When the electrolyte of a lithium battery is fully charged at a high temperature, an irreversible side reaction will occur, causing the overall capacity of the battery to decrease. This is not the worst.

Under such high temperature, there will be gas outside the cell phone battery. In the case of poor quality, there will be gas expansion inside the cell phone battery, while the aluminum and plastic shell batteries will expand due to excessive internal stress. If it does not explode, the phone will deform. This possibility is very low. With so many batteries in this country, explosions are far less common than car accidents. But no one wants to win.