Battery Manufactory

The performance of the lithium-ion battery cathode material directly affects the performance of the lithium-ion battery, and its cost also directly determines the cost of the battery. At present, the positive electrode materials that have been successfully developed and applied mainly include lithium cobalt oxide, lithium iron phosphate, lithium manganate, ternary materials nickel cobalt lithium manganate (NCM) and nickel cobalt lithium aluminate (NCA). The basic requirements of lithium-ion batteries for cathode materials: 1. The potential of the material itself is high, which can form a large potential difference with the negative electrode material, thereby realizing a battery design with high energy density; at the same time, the insertion and extraction of charged ions have little effect on the electrode potential, so the charging and discharging process will not Excessive voltage fluctuations occur without adversely affecting other electrical systems within the sys...

Lithium-ion battery separator, in the structure of lithium battery, the separator is one of the key inner components. For the lithium battery series, since the electrolyte is an organic solvent system, a diaphragm material resistant to organic solvents is required, and a high-strength thin-film polyolefin porous film is generally used. 1. Performance of lithium-ion battery separator products Since the performance of the lithium-ion battery separator determines the key characteristics of the lithium-ion battery, such as capacity, cycle performance, and charge-discharge current density, the separator is required to have appropriate thickness, ion transmission rate, pore size and porosity, and sufficient chemical stability. performance, thermal stability and mechanical stability. Lithium-ion battery separator has a large number of zigzag through micropores, which can ensure the free passage of electrolyte ions to form a charge-discharge circuit; when the battery is overcha...

Ternary lithium battery, also known as ternary lithium polymer, refers to a lithium battery with nickel-cobalt manganate or nickel-cobalt aluminate as the positive electrode material. Ternary lithium batteries are widely used in new energy vehicles due to their smaller size, higher capacity density, and low temperature resistance. The service life of the ternary lithium battery is calculated according to the ratio of the capacity decay degree after use to a certain extent, and it will be terminated directly until the capacity life is zero. The industry algorithm is generally that the ternary lithium battery is fully charged and then discharged once, which is called the cycle life. The theoretical life of a lithium battery is 1200 times that of full charge and discharge, that is, the full cycle life. According to the frequency of use, charge and discharge once every three days, charge and discharge 120 times a year, and the service life of the ternary lithium battery re...