The core role is to accelerate the battery performance degradation process by simulating the charging and discharging cycle, high temperature/low temperature and other working conditions of the battery in actual use, so as to verify the reliability, stability, life and safety of the battery

1. Core use: 3 core goals

1. Screen for defective products to ensure factory quality
   Newly produced batteries may have "early failure" individuals (such as internal micro-short circuits, poor electrode contact, etc.), after simulating dozens to hundreds of charging and discharging cycles through the aging cabinet, these potentially defective batteries will have a sudden drop in performance in advance (such as rapid capacity decay, undercharge), and can be directly screened out to avoid unqualified batteries entering the market.
2. Verify performance stability and match actual usage scenarios
   to test whether the key performance of the battery in long-term use is up to standard, such as:
   • Capacity consistency: whether the capacity difference is within the allowable range after aging of the same batch of batteries (to avoid "uneven battery life" of mobile phones/electric vehicles);
   • Charging and discharging efficiency: whether the battery can be charged normally and quickly after aging, and whether the discharge is stable (for example, the battery of a new energy vehicle still maintains more than 80% capacity after multiple cycles);
   • Environmental Adaptability: Some aging cabinets can simulate high temperature (such as 45°C) and low temperature (such as -20°C) environments to test the aging rate and performance of batteries in extreme temperatures.
3. Evaluate longevity and safety to reduce risk of use
   • Life prediction: Calculate the life of the battery under normal use (e.g., "80% of the capacity remains after 1000 cycles" ≥by accelerating aging (e.g., high-frequency charging and discharging, high-temperature environment).
   • Safety troubleshooting: Real-time monitoring of battery temperature, voltage, and current during the aging process, if there are abnormalities such as overvoltage, overcurrent, bulging, etc., the equipment will automatically stop the test to avoid battery fire and explosion, and at the same time provide data support for battery safety design (such as protection board parameters).
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2. Main application scenarios

• Battery production link: "mandatory inspection process" of lithium batteries (such as mobile phone batteries, electric vehicle power batteries, energy storage batteries) before leaving the factory, batch screening of qualified products;
• R&D experiments: When battery manufacturers or scientific research institutions develop new batteries (such as solid-state batteries), test the impact of different materials and structures on the aging rate of batteries and optimize battery design.
• Quality sampling inspection: The regulatory department or the enterprise quality inspection department conducts sampling and aging tests on the batteries on sale/inventory to verify whether the products meet national standards.
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3. Basic work logic

1. The device cycles the battery through the built-in charge and discharge module (e.g., "charge to full charge→ discharge to remaining 20% capacity" is 1 cycle);
2. At the same time, the voltage, current, temperature, capacity and other data of the battery are monitored and recorded;
3. After the aging is over, compare the performance difference between the "before" and "after" performances of the battery to determine whether it is qualified.