LiFePo4 Battery Cell 32700 3.2V 100Ah For 12V 100AH Batteries Pack

In order to reduce the amount of cobalt and improve the safety performance of batteries, researchers have begun to work on layered ternary high-voltage materials (LiNixCoyMn1-x-yO2 or LiNixCoyAl1-x-yO2). In this type of ternary materials, nickel (Ni) plays a role in supplying capacity, cobalt (Co) can reduce the mixing of lithium (Li) and Ni, and manganese (Mn) or aluminum (Al) can improve the structural stability of layered materials, thereby improving the safety performance of batteries. This type of battery is mainly used in general conventional digital batteries, such as power banks, commercial backup batteries, etc., as a substitute for lithium cobalt oxide, to improve the price competitiveness of batteries, with a nickel-cobalt-manganese ratio of 5:2:3 is the most common. In terms of power vehicles, many manufacturers are trying, and the way to improve energy density is to increase the working voltage of single lithium batteries and the nickel content of new ternary materials, but the industry is still in the development stage, and there is no batch of products. This is important because the current power lithium battery must first meet the high safety, consistency, low cost and long life of the battery, and the improvement of capacity is not the primary problem.

The important problem of ternary materials is that with the increase of nickel content, the alkalinity of the material becomes stronger, and the requirements for the battery manufacturing process and environment are getting higher and higher; At the same time, the thermal stability of the material decreases, and oxygen will be released during the cycling process, resulting in the deterioration of the structural stability of the material. In the state of charge, nickel has strong oxidation, which also puts forward higher requirements for the matching of electrolyte. Therefore, ternary electrode materials have high limitations in promotion and use.