6LR61 battery

　　Quality Inspection of Cylindrical Lithium - Ion Batteries

　　Quality inspection is an essential part of the cylindrical lithium - ion battery production process to ensure that the final products meet the required standards.

　　The first step in quality inspection often involves visual inspection. Trained operators or automated optical inspection (AOI) systems check for any visible defects, such as scratches, dents, or uneven coatings on the battery casing and electrodes. AOI systems use cameras and image - processing algorithms to quickly and accurately detect even the smallest surface imperfections.

　　Electrical performance testing is also crucial. This includes measuring the battery's open - circuit voltage, internal resistance, and capacity. Open - circuit voltage indicates the state of charge of the battery, while internal resistance affects the battery's ability to deliver power. Capacity testing involves fully charging and discharging the battery under controlled conditions to determine its actual energy - storage capacity. These tests are usually carried out using specialized battery - testing equipment that can precisely control the charging and discharging currents and voltages.

　　Safety - related inspections are of utmost importance. Batteries are tested for their ability to withstand over - charging, over - discharging, and short - circuit conditions. Over - charging protection mechanisms are verified to ensure that the battery does not overheat or catch fire when charged beyond its rated capacity. Similarly, over - discharging and short - circuit tests are conducted to assess the battery's safety features. In addition, environmental testing, such as temperature - cycling and humidity - resistance tests, is performed to evaluate the battery's performance under different environmental conditions. Only batteries that pass all these rigorous quality - inspection procedures are considered suitable for the market.

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