Detailed explanation of the principle of polymer lithium battery

There are currently two types of lithium batteries: liquid lithium batteries (LIB) and polymer lithium batteries (PLB). Among them, the liquid lithium battery refers to a secondary battery in which Li+ intercalation compounds are positive and negative electrodes. The positive electrode adopts lithium compound LiCoO2, LiNiO2 or LiMn2O4, and the negative electrode adopts lithium-carbon intercalation compound LixC6. The typical battery system is: (-)C|LiPF6EC+DEC|LiCoO2(+) Positive electrode reaction (reduction reaction): Li1-xCoO2+xLi ++xe-u003dLiCoO2-----------(2.1) negative electrode reaction (oxidation reaction): LixC6-xe-u003d6C+xLi+-----------(2 ．2) The total reaction of the battery: Li1-xCoO2+LixC6u003dLiCoO2+6C----------- (2.3) The principle of polymer lithium battery is the same as that of liquid lithium, the important difference is the electrolyte and liquid Lithium is different. The essential structure of the battery includes three elements: positive electrode, negative electrode and electrolyte. The so-called polymer lithium battery means that at least one or more of these three critical structures use polymer materials as the critical battery system. In the polymer lithium battery system currently developed, polymer materials are mainly used in the positive electrode and the electrolyte. Cathode materials include conductive polymer or inorganic compounds used in general lithium batteries. The electrolyte can use solid or colloidal polymer electrolytes, or organic electrolytes. Generally, lithium ion technology uses liquid or colloidal electrolytes, so it must be strong. The secondary packaging to contain the flammable active ingredients, which adds weight, and also limits the flexibility of size. Detailed explanation and principle of polymer lithium battery_What is the difference between polymer battery and lithium battery? Which is better? The new generation of polymer lithium batteries can be thinner in shape (the thinnest ATL battery can reach 0.5 mm, which is equivalent to the thickness of a card), any area and any shape, which greatly improves the design of the battery shape. Flexibility, so that it can be made into batteries of any shape and capacity according to product requirements, providing equipment developers with some design flexibility and adaptability in power processing methods to maximize their product performance. At the same time, the unit energy of the polymer lithium battery is 20% higher than that of the current general lithium battery, and its capacity and environmental protection performance are all improved compared with the lithium battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: How to judge a battery imbalance?