source:other news release time:2022-10-18 Hits: Popular:Lithium-ion battery wholesale
Lithium ion explosion can be divided into internal short circuit fault, external short circuit fault and overcharge.
The internal world here refers to the interior of the lithium ion cell, including the lithium ion fault caused by poor design of the external insulation layer. When the internal short circuit fault of the lithium ion battery and the electronic components cannot disconnect the control circuit, high combustion will occur outside the lithium ion battery, resulting in electrolytic liquefaction of some lithium ion batteries and large battery shell. When the external temperature of the rechargeable battery reaches 135 ℃, the cost-effective diaphragm will close the small hole, the electrochemical corrosion will stop or almost stop, the current will drop sharply, and the temperature will gradually decrease to avoid explosion. However, the low micropore clearance rate or the difficulty in closing the membrane paper at the root of the micropore will cause the battery temperature to rise again, and a large amount of lithium battery electrolyte will liquefy and liquefy, which will eventually charge the battery shell, and even cause the battery temperature to ignite and explode the raw materials.
The external short circuit fault is due to the penetration of the capillary edge of the diaphragm between copper and platinum, or the formation of lithium molecules. This tiny fibrous metal material will cause micro short circuit fault. Because the needle is thin and has a certain resistance, the current is not necessarily large. The observed condition is that the operation speed is too fast, and most of them can be screened out by lithium ion or assembly plant. At the same time, because the edge of the hair is very small, sometimes it will be burned, leading to battery recovery. Therefore, the explosion probability is not high due to short circuit fault. Such a method can lead to short battery charging time from the outside of each lithium ion power plant, and the working voltage is slightly lower than the battery charging time, but few explosion accidents occur. Statistical analysis is applied. Therefore, the explosion caused by short circuit due to explosion is mainly due to over charging. As the electrode is filled with fibrous lithium metal crystals, the penetration points can be seen everywhere, and there is a micro short circuit fault. Therefore, the temperature of the battery will gradually increase, and eventually generate lithium ion battery electrolyte vapor. In this case, whether the temperature is too high to cause ignition and explosion of raw materials, or the vehicle body is first split, causing gas and lithium metal materials to enter and produce severe air oxidation, it is the end of the explosion
However, the explosion caused by external short circuit fault caused by overcharging does not necessarily occur during battery charging. When the battery temperature is not enough to ignite the raw materials, the existing gas body may not be able to support the cracking of the battery shell, and the customer will stop charging and take out the phone. At this time, the current heat of many micro short circuit faults will gradually reduce the battery temperature. After a period of time, the battery will explode. Customers describe each other as finding their phones very hot when they pick them up, and then throwing them away explodes.
Read recommendations:
lithium trolling motor battery Factory
3600W 5120Wh solar power station lifepo4 battery portable with wheels
What are the characteristics of lithium batteries of the five common new energy vehicles?
This kind of battery in China can "self repair" after short circuit
Last article:Does the charging speed of lithium battery affect the battery degradation?
Next article:Advantages of UPS using lithium battery pack
related suggestion
marine battery direct sales
2023-04-07lithium ion golf cart batteries direct sales
2023-03-22portable power station solar
2023-03-20lithium batteries for boats
2023-03-22lifepo4 solar battery wholesaler
2023-04-07solar power storage wholesale
2023-03-20rv marine battery
2023-05-0824v solar battery
2023-05-08golf cart batteries for sale
2023-05-08marine battery for trolling motor
2023-05-08lithium boat batteries
2023-05-08lithium marine batteries
2023-05-08Rechargeable Lithium Ion Battery Pack for Medical Device
2022-10-18Wall Mount Rack Home Energy Battery Pack 16S2P 51.2V 100Ah Cylindrical Cell
2022-10-19High Discharge 5C 10C 18650 21700 Lithium Ion Battery Cell
2023-02-14HB-S1200 1200W Waterproof IP54 Solar Portable Power Station Support Wireless Charge
2022-09-29Customizable LiFePo4 Battery for AGV Robot 60V 72V
2023-02-09The difference between lithium battery and lead -acid battery.lithium batteries for boats Manufactur
2023-03-28Structure diagram of 1860 lithium battery.golf cart batteries price
2023-07-10Lithium power battery
2023-06-01What is a "solid state battery"?
2022-12-02Advantages of Ni-MH battery
2023-02-21Advantages of lithium-ion batteries.solar generator for camping
2023-10-12What is a lithium manganese button battery?
2023-02-01What are the main product characteristics of customized lithium titanate batteries?power station gen
2023-08-25How to do lithium battery packs in series and parallel use?12v 100ah deep cycle battery
2023-03-17Positioning and feasibility analysis of the use of high magnification batteries.deep cycle trolling
2023-03-16