Can the old cell phone battery be repaired with a refrigerator?

Can the old cell phone battery be repaired in the refrigerator? Put the battery in the refrigerator, freeze it for a period of time, and then take it out to continue using it. The battery life will be longer than before freezing! This is a shortcut to fix the old mobile phone batteries in Hangzhou recently. Will it work? Many people have this problem after hearing the rumors. Frozen battery extended standby time In order to verify this statement, the reporter took Sony Ericsson T628 original battery as the test target. This phone was bought in April 2005, and the battery has been used for nearly two years. The owner of the mobile phone, Mr. Shao, said that under normal use, the standby time of the mobile phone is maintained at about 24 hours. If the number of calls is more, the call time is shorter. If the average talk time for each phone is 3 minutes, 10 times of answering or dialing, the power will be affected. Before the test, turn off the phone and turn it on after the battery is fully charged. After that, don’t use this phone to make calls or send or receive text messages. In the absence of any interference, the call almost stopped, and after three days it was completely dead. Next is the experimental phase: put the fully equipped mobile phone battery in the freezer. (According to common sense, in order to prevent the battery from getting wet, the mobile phone should be tightly wrapped with plastic wrap. Then, the mobile phone battery is completely sealed with three layers of newspaper. After 48 hours, the battery is removed, and the six layers of paper film are removed. There is no reason for the battery. Expansion or deformation due to freezing. After cooling for a period of time, put the battery into the phone, charge it up, and then turn it on. Under the same conditions, the third place will automatically shut down, and the screen will only lose power from one grid. After a week, the screen will be turned off. There was a grid left on the screen. On the ninth day, the phone started to ring because of no electricity. The results before and after the cryotherapy test confirmed one thing: when the battery was frozen for the first time, it prolonged the waiting time of the phone .Ice is not the immortality of mobile phone batteries. Is the refrigerator really the elixir of mobile phone batteries? Low temperature changes the electrolyte inside the mobile phone battery and promotes the chemical reaction of the battery that has just been frozen. Ye Gaoxiang, a professor of physics at Zhejiang University, said. Ye The professor explained that the use of mobile phone batteries is actually a process of charging and discharging. During this period, the negative and positive charges in the battery collide with each other. The battery is becoming more and more useless, because at normal room temperature, the internal electronic The kinetic energy is greater, so the battery is active and leaks are relatively frequent. However, when the battery is placed in a low-temperature environment, the microstructure of the lithium film in the lithium battery and the electrolyte, and their interfaces, will change significantly, resulting in temporary battery activity And the leakage current is reduced. So after charging, the waiting time of the mobile phone will increase. Lithium batteries are currently widely used in mobile phones and theoretically can be charged about 6000 times. If the number of charges is large, the thermal movement of the molecules will gradually make the internal molecules microscopic If the structure is damaged, the efficiency of storing charge will gradually decrease. The freezing process only destroys the original internal structure of the battery, which may improve the charging ability in a short time, but it may be useless in the long run. Ye said that once the battery is If the microstructure is damaged, it is impossible to completely recover. Long-term use of this method will accelerate the loss of the battery. Do not repair the mobile phone battery. There are several versions of battery repair. For example, there is a saying that using an eraser to wipe the mobile phone battery and The contact between the mobile phone and the metal surface can make the use of the mobile phone battery more prominent. This modification method is accepted by the industry. In fact, the cleaning tool can remove the rust on the battery metal connector, whether it is an eraser or other materials. Contribute to the charging conditions and the durability of the battery. A mobile phone technician in charge of repairs in a mobile phone shop said. Statement: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete the previous article: Graphene material Research in ceramics