Most of the electronic products people use now rely on lithium batteries to support their functionality and operation. The 18650 lithium battery is a small battery that can be placed in various products that are suitable for battery cells. Lithium batteries are also being produced and used by more and more manufacturers due to their lively chemical characteristics, replacing traditional lead-acid batteries in people's intelligent electronic lives.

　　This type of lithium battery uses manganese dioxide as the position material for its positive electrode, and lithium alloy or lithium metal as the position material for its secondary electrode. After being placed in a suitable battery cell, the two poles will conduct electricity with the metal sheets of the cell, allowing the positive and negative poles to cycle and generate electricity to support the normal use of the product.

　　This type of lithium battery, as a new generation of portable, on the go battery, requires two or more safety lines in its design to ensure that millions of electronic products that rely on it to work will not experience problems due to the battery. In addition, the current generally does not exceed 4.2V to protect its service life and the safety of electronic components. The battery cells of lithium batteries need to have strong resistance to overcharging because modern people often overcharge. In addition, the internal parts of the battery need to be protected because the lithium battery shell should be protected with aluminum or steel shells as much as possible.

　　The 18650 lithium battery has been improved on top of traditional batteries based on the frequency of use of modern electronic devices. It has a larger capacity and longer battery life than previous batteries, and the use of lithium metal has increased safety compared to previous batteries. Its range of use has also expanded to most electronic products currently. Every time people take out electronic products around them for use, there is a lithium battery to escort them.

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