What are the important reasons for the expansion of lithium-ion battery mobile phones?

1. Most mobile phone batteries use high-energy lithium batteries. Generally, this kind of battery will show bulging and swelling after it is used. Presenting this phenomenon also inherits the dangers of long-term use. Therefore, once such an environment is present, the battery must be replaced in real time, and the use cannot be inherited to avoid cell phone explosions. 2. In general, the battery of a mobile phone will reach the end of its useful life after one or two years of use. Mobile phone batteries cannot be used for a long time. It can be used for up to three years. After one or two years, the battery of mobile phones will show various problems. The important reason for these problems is that the quality of the battery is too much used when it is quiet. 3. The chemical properties of lithium are very vivid and easy to burn. When the battery is charged and discharged, the inside of the battery heats up continuously, the gas present in the activation process expands, the internal pressure of the battery increases, and the pressure reaches a certain level, such as the outer shell has scars, It will split, causing swelling, leakage, fire, and even explosion. 4. Poor battery shielding circuit or unshielded circuit: This environment is often produced in mobile phones with removable batteries. Many users like to purchase relatively cheap non-original batteries, and these batteries will cut corners for the most torrential squeeze profits. , The battery's own shielding circuit is prone to problems, presenting an environment where the battery core expands. 5. The mobile phone is not used for a long time: If the mobile phone is not used for a long time, the lithium-ion battery will also show the problem of swelling. This is because the battery will be stored for a long time, the voltage will drop below 2V, and the internal chemical reaction will appear, resulting in the gas of the lithium-ion battery. Drums, which is why many partners invent mobile phone battery bulges when disassembling old mobile phones. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Explanation of voltage of lithium iron phosphate battery and lithium ion battery