Explanation of the reason and charging method of polymer lithium ion battery

Principles of polymer lithium-ion batteries According to the difference in electrolyte materials used in lithium-ion batteries, lithium-ion batteries are divided into liquid lithium-ion batteries and polymer lithium-ion batteries or plastic lithium-ion batteries. The positive and negative materials used in polymer lithium-ion batteries communicate with liquid lithium ions. The positive materials are divided into lithium cobalt oxide, lithium manganate, ternary materials and lithium iron phosphate materials. The negative electrode is graphite, and the principles of battery operations are also fundamental. Unanimous. Polymer lithium-ion batteries are recycled file alloys as positive electrodes, polymer conductive materials, polyacetylene, polyaniline or poly-p-phenol are recycled as negative electrodes, and organic solvents are used as electrolytes. The specific energy of the lithium polyaniline battery can reach 350W.h/kg, but the specific power is only 50-60W/kg, the use temperature is -40-70 degrees, and the life span is about 330 times. The electrolyte of a lithium polymer battery is a flexible solid polymer, and the metal file foil is sealed in the battery, and it can still work normally at a high temperature of 180°C. Since the polymer replaces the liquid electrolyte with a solid electrolyte, compared with liquid lithium-ion batteries, polymer lithium-ion batteries have the benefits of being thinner, arbitrarily large, and arbitrarily shaped. Therefore, aluminum-plastic composite films can be used to make battery casings. Thereby, the specific capacity of the entire battery can be improved; polymer lithium-ion batteries can also recycle polymers as the positive electrode material, and its mass specific energy will be more than 20% higher than the current liquid lithium-ion batteries. Polymer lithium-ion batteries have the characteristics of miniaturization, thinness, and light weight. Therefore, the market share of polymer batteries will gradually increase. Polymer lithium ion battery charging method Polymer lithium ion battery generally refers to polymer lithium ion battery, which is basically grown in liquid lithium ion battery. At the moment, many electronic digital products have used polymer lithium-ion batteries. The charging and discharging of polymer lithium-ion batteries and liquid lithium-ion batteries actually communicate. There are two important methods: constant voltage charging and constant current charging, and the two can also be staggered. In constant current charging, the capacity of the battery increases with time, and the internal resistance of the battery increases continuously, and the charging becomes slow. At this time, we shouldn’t think that the charging is complete, and we need to slow down the charging for a period of time. When the manufacturers of general polymer lithium-ion batteries charge the battery, they first charge the battery with the recovered constant current, and then charge the battery with the constant voltage current. Current, voltage, and cell phone power are all changing over time, which guarantees that the cell phone's battery can quickly fill up. The correct charging method of polymer lithium ion battery 1. When charging the polymer lithium ion battery, the charger is best to choose the original special charger, otherwise it will affect or damage the polymer lithium ion battery. 2. It is best to use a slow charging method when charging a polymer lithium ion battery. Just be prepared for fast charging. Repeated charge and discharge will also affect the life of the polymer lithium ion battery. 3. If the mobile phone is not used for more than 7 days, the polymer lithium-ion battery should be fully enriched before use. The polymer lithium-ion battery has self-discharge. 4. The charging time of polymer lithium ion battery is not as long as possible. For ordinary chargers, when the polymer lithium ion battery is full, the charging should be stopped immediately, otherwise the polymer lithium ion battery will be affected by fever or overheating. function. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to delay the service life of the ternary lithium-ion battery pack?