Design and Manufacture of Lithium-Ion Battery With a Capacity of ۲۶۰۰mAh Based on NCM Cathode in the ۱۸۶۵۰ Platform

In recent years, many studies have been conducted in the field of lithium-ion batteries, often focusing on a specific component of several parts affecting the performance of battery. Cell design can be examined from different views such as electrical, mechanical and electrochemical matters. Ability of production equipment is one of the most important parameters of any cell design, which causes batteries of the same capacity to have special dimensions. In this research, based on the ability of different devices, cell with a capacity of ۲۶۰۰ mAh in the ۱۸۶۵۰ platform is produced. The main parameters that were optimized in the production process are the dimension of negative and positive electrodes, calendar pressure, the winding tension, the amount of electrolyte and formation program. The manufactured batteries were sampled and their electrical tests were performed in accordance with the IEC۶۱۹۶۰ standard. The results show that these batteries have the ability to pass various tests of the mentioned standard, including retention of ۷۵% of the first discharge capacity after ۴۰۰ cycles, maintaining at least ۵۷% of the room temperature capacity at low temperatures, and maintaining ۹۹.۹۹% of the storage charge after one month.