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When it comes to new energy vehicles, the most concerning aspect is the battery's performance. The safety and durability of the battery greatly influence the user experience of new energy vehicles. High and low temperature test chambers are a type of environmental reliability testing equipment, and with the rise of new energy vehicles in recent years, they have gradually garnered attention. Today, we will discuss matters related to high&low temperature testing of new energy vehicle power batteries.
High and low temperature testing is used to evaluate the performance and reliability of power battery systems in high and low-temperature environments. Typically, the battery system is placed inside a test chamber to simulate actual high and low-temperature conditions. During the test, parameters such as the temperature, voltage, current, and capacity degradation of the battery system are monitored and recorded.
High and low-temperature environments can adversely affect battery systems by accelerating capacity degradation, increasing internal resistance, and reducing the power output capability of the battery. High temperatures, in particular, can trigger thermal runaway, overheating, or even fire risks in the battery system. Through high and low-temperature operation tests, the thermal management, performance degradation, and safety of the battery system in these conditions can be assessed, providing a better understanding of the battery system's performance.
In high and low temperature testing, commonly used evaluation standards include:
Temperature Response
Detects the temperature variation and stability of the battery system in high and low-temperature environments.
Capacity Degradation
Measures the capacity loss of the battery system in high and low-temperature environments to assess its lifespan characteristics.
Internal Resistance
Measures changes in the internal resistance of the battery system in high and low-temperature environments to evaluate its power output capability.
Safety Performance
Observes the safety performance of the battery system during high and low-temperature operations, including aspects such as temperature control and thermal runaway risks.
Operational Norms for high and low-temperature testing refer to a series of operational guidelines that need to be followed during high-temperature tests. These norms aim to ensure the safety and accuracy of high and low-temperature testing. Before conducting high and low temperature testing, operators should be familiar with the characteristics and performance of the test equipment and understand the relevant test methods and requirements. Operators should wear protective clothing that meets safety requirements and use personal protective equipment during the high&low temperature testing。
Before conducting high and low temperature testing, operators should inspect and calibrate the test device to ensure its proper operation and accuracy. During the high&low temperature testing process, operators should closely monitor the operating status of the test device and take appropriate measures to prevent operational loss of control and accidents. After high&low temperature testing is concluded, operators should promptly clean up the test site and maintain the equipment's cleanliness and safety. Adhering to high&low temperature testing operational norms is crucial for ensuring the smooth execution and accurate results of high-temperature tests.
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