The correct use of lithium ion batteries and pay attention to fire prevention

In the use of lithium-ion batteries, it should be noted that after the battery is left for a period of time, it enters the dormant state. At this time, the capacity is lower than the normal value and the use time is also shortened. But lithium-ion batteries are easy to activate, as long as 35 normal charge and discharge cycles can activate the battery and restore normal capacity. Due to the characteristics of the lithium-ion battery itself, it is determined that it has almost no memory effect. Therefore, users do not need special methods and equipment during the activation process of new lithium-ion batteries. Not only is this true in theory, but from my own practice, it is best to use the standard method of charging from the beginning, which is the natural activation method. Regarding the activation of lithium-ion batteries, many claims are: the charging time must be more than 12 hours, repeated three times in order to activate the battery. The statement that the first three charges should be charged for more than 12 hours is obviously a continuation of the statement that nickel batteries (such as nickel-cadmium and nickel-metal hydride). So this statement can be said to be misinformation at the beginning. The charging and discharging characteristics of lithium-ion batteries and nickel batteries are very different, and I can tell you very clearly that all the serious formal technical materials I have consulted emphasize that overcharge and overdischarge will affect lithium-ion batteries, especially Liquid lithium-ion batteries cause huge damage. Therefore, it is best to charge according to the standard time and standard method, especially not to charge more than 12 hours. In addition, the lithium-ion battery or the charger will automatically stop charging after the battery is fully charged, and there is no such thing as a trickle charge that lasts for more than 10 hours as a nickel charger. In other words, if your lithium-ion battery is fully charged, it is also white charged on the charger. And none of us can guarantee that the characteristics of the battery's charging and discharging protection circuit will never change and the quality will be foolproof, so your battery will be on the verge of danger for a long time. This is another reason why we oppose long charging. Pay attention to fire protection when using lithium-ion batteries. Many people may be familiar with lithium-ion batteries only from mobile phones. In fact, it is used in many home appliances. Undoubtedly, the advantages of lithium-ion batteries, such as high efficiency and light weight, are rapidly promoting their applications. But, do you know that if you use it carelessly, it will make you angry? Lithium-ion batteries have the advantages of light weight, high efficiency, and low temperature resistance (-40℃). Lithium-ion batteries with a thickness of 0.3mm and the size of a stamp can last Used for more than 5 years, in recent years, the existing alkaline dry batteries and manganese batteries are being phased out, and they are widely used in many high-end home appliances and mobile phones. Lithium-ion batteries are different from the zinc chloride and potassium hydroxide water-soluble electrolytes of current manganese batteries and alkaline dry batteries. They use organic solvents. The positive electrode of lithium ion battery uses materials such as manganese dioxide, lead fluoride, and sulfurous chloride. Compared with the zinc chloride used in the negative electrode of general batteries, the lithium metal foil used in the negative electrode has a strong ionization tendency and a large voltage difference between the positive and negative electrodes, which improves the working efficiency of the lithium ion battery. However, lithium-ion batteries often generate heat and combustion during use. The lighter ones will affect the use of the host, and the more serious ones will burn the host and cause a fire. According to reports, in Japan, there have been many domestic fire accidents caused by the heating and burning of lithium-ion batteries in recent years. So why do lithium-ion batteries generate heat and burn? When many materials in lithium-ion batteries come into contact with water, they can undergo violent chemical reactions and release a large amount of heat energy to cause heating and burning. The manganese dioxide in the positive electrode of a lithium-ion battery generates heat with only a small drop of water. After the sulfur chloride in the lithium ion battery comes into contact with water, it generates hydrochloric acid and sulfur dioxide and releases heat at the same time. Several factors make the lithium ion battery a kind of fire in life. Therefore, people must pay attention to waterproofing and waterproofing when using lithium ion batteries. Moisture-proof. After various hosts are out of service, the lithium-ion batteries should be removed and stored in a dry, low-temperature place to prevent and prevent household fire accidents caused by improper use of lithium-ion batteries. 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 should the new lithium-ion battery be charged?