Electric car batteries, particularly those manufactured by Hunan CTS, operate based on the principles of lithium - ion battery technology. At the core of these batteries are lithium - ion cells, carefully selected by CTS's experienced R & D team for their high energy density. During the discharge process, which occurs when the electric car is in motion, lithium ions move from the negative electrode (anode) to the positive electrode (cathode) through an electrolyte medium. Simultaneously, electrons flow through the external circuit, generating an electric current that powers the car's electric motor, enabling the vehicle to move. A crucial component of CTS's electric car batteries is the Battery Management System (BMS). The BMS acts as the brain of the battery, constantly monitoring and controlling various aspects of its operation. It ensures that the lithium - ion cells operate within safe voltage, current, and temperature ranges. For instance, it prevents overcharging, which can cause irreversible damage to the cells and reduce the battery's lifespan, and over - discharging, which can also degrade the battery's performance over time. When it's time to recharge the battery, an external power source supplies electrical energy. This energy causes the lithium ions to move back from the cathode to the anode, reversing the discharge process and replenishing the battery's energy. CTS designs its electric car batteries with advanced thermal management systems. Since extreme temperatures, both hot and cold, can negatively impact the performance and lifespan of lithium - ion batteries, the thermal management system works to maintain an optimal operating temperature. This ensures the efficient and safe operation of the battery, maximizing its performance and longevity. With strict quality control measures following ISO9001 and IATF16949 management systems, and international certifications, CTS's electric car batteries provide reliable and efficient power for electric vehicles.