Harbin's famous Ice Sculpture Festival recently opened, and the spectacular scenery in the ice and snow has attracted countless tourists from the south. However, many southern tourists encountered a very troublesome problem: their mobile phones lost power.Recently, an iPhone user said that his phone suddenly lost 60% of its power and sought a mobile phone repair shop to solve the problem. The shop owner said that this is normal in the north.
The store owner also said that the weather has been getting warmer recently, and when the temperature was over minus 20 degrees Celsius, the phone screen would go black.
Finally, the store owner also gave me a suggestion. You can put a thermal patch on the back of the phone to keep it warm. This way, you won't have the problem of sudden power loss or black screen. At the same time, don't put the phone in your trouser pocket, but try to put it in the inner chest pocket to keep it warm.
In fact, this situation is determined by the characteristics of lithium batteries and does not mean that the quality of the mobile phone is not good.
Lithium battery discharge is a chemical reaction process. The principle is that the negative electrode of the lithium battery releases lithium ions through a chemical reaction, and the lithium ions are transferred and embedded into the positive electrode through the electrolyte solution, thereby generating current to power the mobile phone.
In winter, the temperature is lower and the viscosity of the electrolyte solution increases, resulting in the poorer ability of lithium ions to travel through the solution, reduced activity, and increased resistance.
It causes the battery discharge voltage to decrease, thereby reducing the available capacity of the battery and causing the mobile phone to consume power faster.