What is the reason for the short circuit of polymer lithium battery?

Causes of short circuit of polymer lithium battery When polymer lithium is charged, when the battery is overcharged or overdischarged, the charger does not match the mobile power supply. The battery is easily overcharged. The expansion possibilities of polymer lithium batteries will increase. When the battery is charged and discharged, the battery continues to heat up, the gas expands during the activation process, and the battery pressure rises, reaching a certain level. If the shell is defective, it will break, causing fire or even explosion. There is also the maintenance problem of the edge seal. The middle layer of the aluminum-plastic composite film packaging material on the edge sealing surface is made of pure aluminum, which has good electrical conductivity. Therefore, strong insulation and barrier measures must be taken during use. In order to prevent short circuits of external components, corrosion and gas may appear in the battery. The cycle life of the lithium iron phosphate battery pack is 84% u200bu200bof the 5000 times the balance capacity, and the cycle life of the triple lithium iron phosphate battery pack is 66% of the 3900 times the balance capacity. Compared with the cycle life, the lithium iron phosphate battery pack has more advantages. Significantly. Assuming the remaining capacity/initial capacityu003d80% action test breakpoint, the 1C cycle life of the lithium iron phosphate battery laboratory is temporarily greater than 3500 times, and some reach 5000 times, while the 1C cycle life of the ternary lithium battery laboratory is scheduled to be 2500 times . At this point in the cycle life, the actual life of a lithium iron phosphate battery pack is much longer than that of a ternary lithium battery. Under the general cycle times, the remaining capacity of the lithium iron phosphate battery is greater than that of the ternary lithium battery. In addition to the huge difference in cycle life between the two batteries, the safety of the two batteries is also different. The appearance is on the road, the charging times of the lithium iron phosphate battery pack and the ternary lithium battery are more than 2000 times, a little kuachi, it will charge you for a whole day, and it can be used for more than 5 years. The entire electric vehicle is charged once every three days, so the lifespan of the lithium iron phosphate battery and the ternary lithium battery are naturally enough to reach the 8-year arrangement. Assuming that 1,000 cycles of charging and discharging are maintained, before the essence of the 3 yuan lithium battery decays by 50%, that is to say, a full charge can only run half of the original process. The lithium iron phosphate battery pack has a cycle life of more than 2000 times, and the standard charge (charge rate of 5 hours) can reach more than 2000 times. The total quality of lead-acid batteries is the new half year, the old half year, maintenance and half a year, which is 1 to 1.5 years at most, while the lithium iron phosphate battery will have an appearance life of 7 to 8 years under a common premise. All in all, nature is more than four times more expensive than the appearance of lead-acid batteries. The high current retractable can quickly retract and release the high current 2C charging. In the bo charger, the battery can be fully charged within 40 minutes of 1.5C charging, so that the current can reach 2C, while the lead-acid battery does not have this characteristic statement: Some pictures and content of the published article are from the Internet. If there is any infringement, please contact to delete the previous article: Can’t the RV lithium battery use high-power electrical appliances at the same time?