Accurately evaluating the performance of lithium batteries is crucial in the research, production, and application process. The Yishengda lithium battery aging testing equipment integrates multiple key functions such as cycle life testing, capacity testing, DC internal resistance testing, and rate charge discharge testing, providing strong support for a comprehensive understanding of lithium battery performance.
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Cycle Life Test: Mastering Battery Durability
The cycle life of lithium batteries is one of the important indicators to measure their performance, which reflects the capacity degradation of the battery during repeated charging and discharging processes. The Yishengda aging testing equipment can accurately simulate the actual usage scenarios of batteries and conduct a large number of charge and discharge cycle tests. By continuously recording the capacity changes of the battery at different cycles, a clear capacity decay curve can be drawn. This not only helps manufacturers estimate the actual service life of batteries, providing assurance for product quality, but also helps researchers to deeply study the changes in battery materials and structures during the cycling process, thereby promoting the optimization and innovation of battery technology. For example, in the research and development of electric vehicle batteries, accurately mastering the battery cycle life can ensure that the vehicle maintains stable endurance during long-term use.
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Capacity testing: Determine battery energy storage capacity
The battery capacity determines the amount of charge it can store, which directly affects the duration of device usage. Yishengda equipment adopts high-precision charge and discharge control technology, which can accurately measure the actual capacity of lithium batteries. During testing, the device first fully charges the battery and then discharges it at a specific current until the battery voltage reaches the cut-off value. By accurately recording parameters such as current and time during the discharge process, the battery capacity can be accurately calculated using professional algorithms. This precise capacity testing is of great significance for battery manufacturers to ensure product consistency, screen high-quality batteries, and accurately evaluate battery life for users. For example, in portable electronic devices, accurate battery capacity information can help users better plan their device usage time.
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DC internal resistance test: insight into the internal condition of the battery
DC internal resistance is a key parameter that reflects the physical and chemical state inside the battery. The Yishengda aging testing equipment measures the voltage changes of the battery before and after applying specific current pulses, thereby quickly and accurately calculating the DC internal resistance. The DC internal resistance of a battery is closely related to factors such as electrode materials, electrolyte, and internal structure. Changes in internal resistance often indicate aging, damage, or other abnormal conditions within the battery. For example, as the number of battery cycles increases, the internal electrode materials gradually deteriorate, the electrolyte dries up, and the DC internal resistance gradually increases. By monitoring the DC internal resistance, manufacturers can promptly detect battery quality issues, take corresponding measures to improve, and enhance the overall quality and stability of the product.