What are the important reasons for battery expansion and explosion?

The reasons for the expansion and explosion of the battery are mainly as follows: 1. Poor battery protection circuit or no protection circuit: This situation often occurs in mobile phones with removable batteries. Many users like to buy relatively cheap non-original batteries. In order to squeeze profits to the greatest extent, batteries usually cut corners, and the protection circuit of the battery itself is prone to problems and battery expansion. Regarding lithium batteries, an explosion occurs when the battery cell expands to a certain extent. 2. Poor charger performance: It should be the most common situation that the battery has problems due to the charger. In many cases, users may not care about the choice of mobile phone chargers, and often take a charger at hand for charging. These chargers may be cheap chargers sold on the street without a complete protection circuit system, or they may be chargers for household tablet products. The charging current is likely to be relatively large, and occasionally the charging problem is not big, but if it is a long time Use, it is very likely that the battery will swell. Especially some users like to play while charging, leaving the phone in a high temperature environment for a long time. Continuous floating charging at high temperature will cause side reactions of the electrolyte. Doing so for a long time will seriously affect the battery life and the problem of swelling. It is easy to appear. 3. The mobile phone is not used for a long time: If the mobile phone is not used for a long time, the battery will also swell. This is because the battery will be stored for a long time, the voltage will drop below 2V, and a chemical reaction will occur inside, which will cause the lithium battery to swell. It is also the reason why many friends will find the battery bulge when disassembling old mobile phones. So if you want to store the battery for a long time, the most reliable way is to charge it to a half-charged state regularly. 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: How to maintain UPS power battery to make it last longer?