Explain the difference between series and parallel lithium-ion batteries

1. The series connection of lithium-ion batteries consists of the following points: 1. The series connection of batteries means that the 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. 2. The series voltage of the battery is equal to the sum of the battery voltage, and the current is equal to the current flowing through each battery. 3. Damage to a section of the battery pack will cause the entire battery pack to be unusable or the voltage to drop. 4. The series connection can increase the total voltage. 2. The parallel composition structure of the difference between series and parallel lithium-ion batteries. 1. Parallel connection of lithium-ion batteries refers to the connection between the first and the end of the battery. That is, the positive poles of all batteries are connected, and the negative poles of all batteries are connected. 2. The parallel voltage of lithium-ion batteries in parallel is equal to the voltage of a single battery, and the current is equal to the sum of battery currents. 3. Although the endurance of the battery pack is enhanced, the damage caused by the short-circuit current is more serious; 4. Parallel connection can increase the total current. Real rehearsal of lithium-ion batteries in parallel field experiment III. What are the differences in circuits between series and parallel? 1. Series circuits with different connection methods: Series circuits are two or more electrical appliances connected to the circuit in sequence. Parallel circuit: A parallel circuit is where two or more electrical appliances are connected in parallel and then connected to the circuit. 2. The current path is different. Series circuit: There is only one path for the current in the series circuit. Parallel circuit: The current in the parallel circuit has multiple paths. 3. The connection between electrical appliances is different. Series circuits: The electrical appliances in the series circuit affect each other. Parallel circuit: The electrical appliances in the parallel circuit do not affect each other. 4. Switch control is different. Series circuits: The switches in the series circuit control the on and off of the entire circuit, and have nothing to do with the position of the switch. Parallel circuit: The trunk switch in the parallel circuit controls the entire circuit, and the branch switch controls the branch where it is located. 4. What are the advantages and disadvantages of serial and parallel lithium-ion batteries? The advantage of series connection: In a circuit, if you want to control all circuits, you can use a series circuit; the disadvantage of series connection: as long as one part is disconnected, the whole circuit becomes a disconnection. The advantage of parallel connection: one electrical appliance can complete the work independently, which is suitable for the street lights on both sides of the road. Disadvantages of parallel connection: If the circuit is connected in parallel, the currents of all parts add up to the total current. It can be seen that the current consumption in the parallel circuit is large. 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: Which square cylindrical soft-pack battery is safer?