What accidents are prone to lithium-ion batteries

Overcharge explosion: This is dangerous, and the company is afraid of it, but it still happens occasionally. From what we understand, there are two points: a. The user does not use the matching charger as required, which damages the protection circuit and the user often charges for an unlimited time. In this case, it is difficult to not explode; b. Unreasonable and the protection board fails, in this case it will be a mess... the same is true for a single battery. Internal short circuit (mostly soft package large monomers) structure or process defects caused by the insertion of the tabs, too little surplus of the diaphragm package, burrs, and discounted diaphragms, etc. Interpolation of tabs often occurs in thick batteries and internally parallel structures. Insulation of tabs is not in place. Adding protective plates to the subsequent finished product or use process can easily cause internal acute short circuit and cause combustion or explosion (internal short circuit: this is personally I have a deep understanding. At that time, more than 2K batteries of this kind were scrapped. The actual design defect was abnormal in nature: internal acute short circuit), but now this situation is almost rare, unless external factors are involved. An external short circuit below 1AH causes a short-circuit after the burning of the battery. It is not common to explode after burning. It is usually caused by bulging or simply burning the tabs. Personal analysis is the burning caused by the external short circuit of the power lithium battery or the large-capacity mobile phone battery. This involves customers improperly installing the metal outer box without considering the tab insulation, and abnormal battery smoking and burning occurred at the installation site; the power lithium battery also often has insufficient structural fixing measures (not thoughtful), and the battery pack shakes during the user’s use. It may cause damage to the battery's external insulation and protection film or damage to the connecting wire, which will eventually lead to short-circuit and burning. 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 calculate the amount of lithium-ion battery electrolyte?