Author ：Iflowpower – Portable Power Station Supplier
Many people will have a misunderstanding that as long as the battery is very dangerous, especially the lithium-ion battery is very unsafe, will explode! Is the 18650 battery really dangerous? If you want to figure out this problem, you must first understand what is 18650 battery? 18650 Lithium Ion Battery We often say that 18650, is actually referring to a standard battery model of the battery, which is a standard battery model that Japan Sony has settled in order to save costs. 18 indicates a diameter of 18mm, 65 represents a length of 65mm, 0. Representation is a cylindrical battery.
18650 Battery is originally referring to a nickel-hydrogen battery and a lithium ion battery. Since nickel hydrogen is more useful, therefore, a lithium-ion battery is now referred to. The 18650 lithium-ion battery single-section sign voltage is generally: 3.
6V or 3.7V; minimum discharge termination voltage is generally: 2.75V.
The common capacity is 1200 ~ 3000mAh, which is very likely to be dummy. Since Sony launched since the 1990s, 18650 batteries have been done. 18650 battery is widely used in industrial fields and laptops, walkie-talkies, instrumentation and other electronic devices, etc.
The world's most popular Tesla electric car is also a 18650 battery pack supplied with Panasonic. Why does the lithium ion battery explode? 18650 Battery Most of the steel shell package, the battery is not high, because there is no protection function, in the case of overcharge (overcharge), the internal pressure increases, when it exceeds the tolerance, it will explode. The short circuit, too high, or the battery is extruded or even piercing, etc.
may cause the battery explosion. What is a lithium ion battery safety valve? After 30 years of development, the 18650 battery preparation process has been very mature. In addition to performance, its security is also very perfect.
In order to prevent the sealed metal housing, the 18650 battery is now equipped with a safety valve at the top, and the safety valve is the standard of each 18650 battery and the most important explosion-proof barrier. When the internal pressure is too large, its top safety valve opens the exhaust pressure to prevent explosion. However, when the safety valve is opened, the chemical that is internally leaked inside the battery will chemically react with oxygen in the air in high temperature conditions, and there is still a case where it is possible to appear.
In addition, some 18650 batteries are now self-contained, with overcharge and short-circuit protection, with high security performance. The safety valve is broken and the previous mobile power explosion event is all caused by the unqualified poor 18650 battery that is unqualified by unscrupulous manufacturers, or even used waste electricity. At present, the 18650 batteries produced by major batteries such as Panasonic, Sony, Samsung, etc.
are actually very safe, and the 18650 battery usage is very high. We can do correct use when we use and prevent battery short circuit, damage or The temperature is too high, and it is not worried that the battery will explode. We can't overturn a boat, with an individual inferior product to be safely 18650 security.
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