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18650 lithium ion battery assembly tutorial and precautions

by:Vglory      2021-04-30
18650 lithium ion battery assembly tutorial 18650 lithium ion battery assembly method should be based on the battery structure, different lithium ion battery pack structures have different methods when PACK assembly, 18650 lithium ion battery PACK multi-string multi-parallel assembly should pay attention to the group before assembly The battery capital believes that basically the battery assembly is very simple, similar to the following 1 string and 1 parallel 18650 lithium battery assembly. The summary analysis of the 18650 lithium ion battery pack process skills can start with the basic simple 18650 lithium ion battery assembly. It will be easier to get started in the future. Through the above video teaching of on-site battery assembly, is it very simple to make a series of 1 parallel lithium-ion battery? Of course, these should also pay attention to the following points. 1. The batteries are arranged neatly, which is convenient for future maintenance. It is best to use a standard 18650 battery tray. 2. Good welding. The most common welding method on the market is spot welding with a nickel welder or an electric soldering iron. The soldering points are in good contact. 3. After welding, the wiring of each battery group must be clear. 4. For waterproofing and insulation, it is best to cut a piece of highland barley paper or use asbestos. 5. The most important point, the internal resistance of the battery before welding, the current voltage error should not exceed 0.05V! If possible, a special protection board for lithium-ion batteries must be added to prevent overshoot and overdischarge. After welding, measure whether the voltage of each circuit is good. 6. After using the newly assembled battery pack for a period of time, check the battery voltage in groups. 18650 lithium-ion battery assembly precautions: 1. Single-cell 18650 lithium-ion battery must pay attention to welding, including soldering and spot welding, and there should be no desoldering phenomenon. 2. Pay attention to the internal resistance, voltage, and capacity of the single-cell 18650 lithium battery cell when selecting the battery cell to match the requirements of the customer. 3. Most of the battery MOS and IC used in a single 18650 battery are the same, and this kind of lithium-ion battery circuit board is basically designed and tested by electronic engineers. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the precautions for lithium-ion battery maintenance?
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