source:other news
release time:2022-10-18
Hits:0
Popular:
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:
51.2V Modular Stacking Rack Mount Energy Storage System
What are the four stages of rechargeable lithium-ion batteries?
What parameters should I consider for lithium battery design?best solar generator for home backup
Last article:Does the charging speed of lithium battery affect the battery degradation?
Next article:Advantages of UPS using lithium battery pack
related suggestion
12v 100ah lithium ion battery
2023-04-07lithium deep cycle marine battery direct sales
2023-03-22lithium boat batteries sales
2023-03-20lithium ion golf cart batteries manufacturer
2023-03-20marine battery for trolling motor Factory
2023-04-07deep cycle marine battery Production
2023-03-20lifepo4 12v 100ah
2023-05-08marine batteries for sale
2023-05-08powerstation 2000 watt
2023-05-0812v 200ah battery
2023-05-08lifepo4 12v
2023-05-08solar generator for rv
2023-05-0860V 80Ah Motive Battery Pack for AGV Robot
2023-02-14Home Energy Storage System 51.2V 150Ah LiFePo4 Battery Pack
2023-06-1932700 Special Battery Cell Explosion Proof Rechargeable Li-Ion Battery
2023-02-14LiFePo4 Battery Pack 12V 350Ah
2022-09-19Household Energy Storage System Battery Pack Integrated with Inverter 16S2P 51.2V 100Ah
2022-10-20Li4ti5012 lithium battery.36 volt golf cart batteries
2023-07-17How to choose FPV batteries?
2023-02-22Balanced principle of battery pack
2023-02-15Portable Power Station vs. Solar Generators: The Differences
2022-09-05Self -discharge rate of lithium ion battery.portable solar power station
2023-05-12What is the effect of high -power discharge?lithium trolling motor battery manufacturer
2023-04-14Detailed explanation of lithium battery pack classification, application field and production process
2022-11-25What battery is used for heating clothing batteries?solar generator for camping
2023-03-10What are the recycling methods of lithium batteries on the market?
2022-10-22Principle of battery charger
2023-06-15