What is the difference between polymer lithium ion battery and ternary lithium ion battery

The positive material of polymer lithium ion battery is divided into lithium cobalt oxide, lithium manganate, ternary material and lithium iron phosphate material. The negative electrode is graphite, and the battery matter is basically the same. The important difference in the positive material of polymer lithium ion batteries lies in the difference in electrolytes. Liquid lithium ion batteries use liquid electrolytes, while polymer lithium ion batteries are replaced by solid polymer electrolytes. This polymer can be dry or glued. In fact, most of the polymer gel electrolytes are currently recycled. The positive material of the ternary polymer lithium-ion battery uses the ternary positive material of nickel cobalt manganese lithium or lithium nickel cobalt aluminate. The ternary composite positive electrode material is made of nickel salt, cobalt salt, and manganese salt. The ratio of nickel, cobalt, and manganese inside can be adjusted according to actual needs. The battery with ternary material as the positive electrode is relatively safe for lithium cobalt oxide batteries, but the voltage is too low. Among them, lithium iron phosphate used as a positive material battery has a long charge-discharge cycle life, but its disadvantage is that there is a large gap in energy density, bumpy temperature performance, and charge-discharge rate characteristics, and the production cost is relatively high. The lithium iron phosphate battery technology and Applications have encountered bottlenecks in growth; lithium manganate batteries have low energy density, cyclic invariance at high temperatures, and poor storage performance. Therefore, lithium manganese oxide is only used as the positive electrode material for the first-generation international power lithium battery; and multiple materials have The dual advantages of comprehensive performance and cost are increasingly being paid attention to and recognized by the industry, and slowly surpassing the mainstream technology path of lithium iron phosphate and lithium manganate. The functional characteristics of polymer lithium batteries: shaping mobility, higher mass specific energy, constant electrochemical window width, up to 5V, perfect security and reliability, longer cycle life, less capacity loss, and high volume operation rate. The functional characteristics of the ternary lithium-ion battery: a balanced material in terms of capacity and safety. The reincarnation performance is better than normal lithium cobalt oxide. The nominal voltage is only 3.5-3.6V in the early stage due to technical reasons, which is limited in the scope of use. , But so far, with the constant transformation of the formula and the perfect layout, the nominal voltage of the battery has reached 3.7V, which has reached or exceeded the level of the lithium cobalt oxide battery in terms of capacity. 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: What are the general tips for charging a lithium-ion battery with a fever?