Charging process:
During the charging process, an external power source (such as a charger) provides power, causing the positive electrode material (usually lithium metal oxide, such as LiCoO2, LiFePO4, etc.) to release lithium ions.
These lithium ions move to the negative electrode (usually graphite or other types of carbon materials) through an electrolyte (a medium that allows ions to move but not electrons).
Lithium ions are embedded into the carbon layer structure at the negative electrode, while electrons flow from the positive electrode to the negative electrode through an external circuit, completing the charging cycle.
Discharge process:
When the battery discharges (i.e. provides power to the device), the lithium ions embedded in the negative carbon layer will detach and return to the positive electrode.
Lithium ions move through the electrolyte, while electrons flow from the negative electrode to the positive electrode through an external circuit, providing power to the device.
At the positive electrode, lithium ions combine with the positive electrode material to complete the discharge cycle.
Electrolyte:
Electrolyte is a crucial component in lithium-ion batteries, allowing lithium ions to move between the positive and negative electrodes while preventing electrons from passing directly through, ensuring that electrons can only flow through external circuits.
the diaphragm:
A diaphragm is a special material located between the positive and negative electrodes. Its function is to prevent direct contact between the positive and negative electrodes from causing a short circuit, while allowing lithium ions to pass through.
Battery Management System (BMS)
To ensure the safety and performance of batteries, lithium batteries are usually equipped with a Battery Management System (BMS), which is responsible for monitoring parameters such as voltage, current, temperature, and controlling the charging and discharging process to prevent overcharging, overdischarging, overheating, and other issues.
Your message must be between 20-3,000 characters!