This means that during the charging and discharging process, the lithium ions move back and forth between the two electrodes of the battery, which is why the working principle of a lithium-ion battery is called the rocking chair principle. A battery typically consists of two electrodes, namely, anode and cathode.
A lithium-ion battery, also known as the Li-ion battery, is a type of secondary (rechargeable) battery composed of cells in which lithium ions move from the anode through an electrolyte to the cathode during discharge and back when charging.
... discharging, the lithium ions travel from the anode to the cathode through the electrolyte, thus generating an electric current, and, while charging the device, lithium ions are released by the cathode and then go back to the anode. Figure 1 shows the basic working principle of a Li-ion battery.
During charging, lithium ions move from the cathode to the anode through an electrolyte, which is a conductive solution. This process allows the battery to store energy.
At its core, a lithium-ion battery consists of three main components: two electrodes (a cathode and an anode) and an electrolyte. Let’s dive deeper into each of these components to understand their roles in the battery’s operation. The cathode is the positive electrode of the battery and is typically made of a lithium metal oxide compound.
A lithium-ion battery stores energy through a chemical reaction that occurs between its two electrodes: a positive electrode, called the cathode, and a negative electrode, called the anode. During charging, lithium ions move from the cathode to the anode through an electrolyte, which is a conductive solution.