Mobile phone lithium battery everyone listens a lot, but how is it classified? In fact, in the field of electronic products, lithium batteries are commonly used in liquid lithium-ion batteries and polymer lithium ions.
Mobile phone lithium battery everyone listens a lot, but how is this thing classified (the following lithium-ion battery is abbreviated as lithium battery)?
In fact, in the field of electronic products, lithium batteries are commonly used in liquid lithium-ion batteries and polymer lithium ions. (18650 refers to the battery with a diameter of 18mm and a length of 65mm, a cylindrical battery. Although most of the 18650 on the market is liquid lithium battery, any statement that “polymer lithium battery is safer than 18650 is wrong” is wrong.)
What are the different among its?
First of all, it should be noted that the working principle of the two is the same. Both of them are charged and discharged by the process of lithium ion intercalation and deintercalation. Lithium ions are embedded in the negative electrode for charging, and lithium ions are deintercalated from the negative electrode to discharge.
As can be seen from the above figure, the lithium battery contains three basic elements: the positive electrode, the negative electrode, and the electrolyte (the substance filled between the two stages). Of course, there is a diaphragm that prevents direct contact between the positive and negative electrodes (of course, lithium ion). It can pass smoothly, the diaphragm is not good, it will cause a short circuit and cause an explosion~~)