Lithium polymer battery is composed of three parts, the most important part is the battery cell and the protection board. Lithium-ion battery cells are mainly composed of positive plates, diaphragms, negative plates, and electrolyte; positive plates, diaphragms, and negative plates are wound or stacked, packaged, filled with electrolyte, and packaged to make batteries. But many people don’t understand the purpose of lithium ion battery protection board. Polymer battery protection board, as the name suggests, is used to protect lithium ion batteries. The purpose of polymer battery protection board is to protect the battery from over-discharge, over-charge, over-current and It is output short-circuit protection.

In the process of use, whether the lithium ion battery is overcharged or overdischarged, it will affect its performance and its service life. More serious ones will cause adverse effects such as combustion and explosion. The explosion of Samsung’s mobile phone lithium-ion battery in the early years is still fresh in your memory, right? This time also caused Samsung to recall most of its mobile phone products. So this polymer battery protection board must be installed. Composed of a dedicated IC and several external components, it can effectively monitor and prevent damage to the battery according to the protection loop, and prevent the danger of burning, explosion, etc. caused by overcharging, overdischarging, and short circuit. As each battery protection IC must be installed in each battery, the lithium-ion battery protection IC market is surprisingly large, with a market of several billion dollars each year, and the market development prospects are very broad.