What are the ways to connect lithium batteries in series and parallel

Lithium batteries connected in series: Lithium batteries are connected end to end. That is, the positive electrode of the first battery is connected to the negative electrode of the second battery, the positive electrode of the second battery is connected to the negative electrode of the third battery, and so on. The series voltage is equal to the sum of the battery voltages, and the current is equal to the current flowing through each battery. Damage to a section of the lithium battery pack will cause the entire battery pack to be unusable or the voltage to drop. Parallel connection of lithium batteries: refers to the connection between the first and the end of the lithium battery. That is, the positive poles of all batteries are connected, and the negative poles of all batteries are connected. The parallel voltage is equal to the voltage of a single battery, and the current is equal to the sum of the battery currents. Parallel connection can increase the total current. The combination of lithium battery packs requires these two combinations to achieve the desired voltage and capacity. The batteries are generally connected by nickel sheets. This requires special equipment to weld the nickel sheets and the batteries. This method is relatively strong. And safe. Then connect the corresponding protection and then output. Lithium batteries in series and parallel: Lithium batteries in series and parallel.jpg Lithium batteries in series: the positive electrode of the next lithium battery is connected to the negative electrode of the previous lithium battery, and finally only the positive electrode of the first lithium battery and the last lithium battery are left The negative electrode. Lithium batteries are connected in parallel: the positive electrode of the latter lithium battery is connected to the positive electrode of the previous lithium battery, and the negative electrode of the latter lithium battery is connected to the negative electrode of the previous lithium battery. In the lithium battery pack, multiple lithium batteries are connected in series to obtain the desired operating voltage. If what you want is higher capacity and higher current, then power lithium batteries should be connected in parallel first. The combination of series and parallel can achieve high voltage and high capacity standards. For example, for a 36V10AH electric vehicle battery, 50 2000MAH 3.6V lithium batteries are connected in parallel so that the capacity can reach 10AH; then 10 groups of parallel batteries are connected in series; the voltage of the battery can reach more than 36V after being connected in series. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: What are the advantages of iron-lithium batteries and lithium batteries