How to detect the highest failure temperature of a lithium-ion battery
The 4th World Internet Conference opened in Wuzhen, showcasing a range of cutting-edge technologies and innovative achievements from my country and the international internet. New energy vehicles and intelligent autonomous vehicles were a major focus of attention. With the rapid development of the automotive industry, although new energy vehicles and autonomous driving technologies are gradually being accepted by the public, solving battery-related safety issues has become a new challenge and difficulty for the industry. As a crucial component of automobiles, the performance of lithium-ion batteries directly determines end-user satisfaction. Therefore, comprehensive fault testing of lithium-ion batteries and the supply of safe and reliable lithium-ion batteries are particularly important for both new energy vehicles and intelligent autonomous vehicles.
So how do you test for faults in lithium-ion batteries? A domestic automotive testing agency mounted lithium-ion batteries on a heating plate and conducted charge-discharge tests to detect battery malfunctions. Generally, a battery will fail when heated above 100 degrees Celsius. Some catch fire; some even explode. Therefore, quickly and directly detecting the battery's maximum temperature is crucial during testing.
So how can we quickly and intuitively test the highest temperature of a battery? This has become a major problem for the vehicle testing institute. The institute's current testing method is to use thermocouples to detect the battery temperature, but only one sampling point is needed. Therefore, the temperature detected by the thermocouple is the highest in the disputed battery. High-density repeated sampling is required, and intervention is needed to evaluate the highest temperature of the failed battery, which brings a lot of trouble to the testing.
The FLIRA655sc infrared thermal imager was used on site.
So how can we quickly, intuitively, and accurately detect the highest failure temperature of a lithium-ion battery? We tried using the FLIRA655sc infrared thermal imager from the Vehicle Testing Institute to replace traditional thermocouples in lithium-ion battery failure testing. The results were unexpected, enabling testers to quickly, intuitively, and accurately determine the battery's high temperature, avoiding the hassle of repeatedly using thermocouples for sampling and estimation to determine the highest failure temperature of lithium-ion batteries.
So, how does the FLIRA655sc infrared thermal imager quickly and accurately detect the maximum failure temperature of lithium-ion batteries? This is due to the powerful functions of the A655sc. The A655sc has a built-in uncooled detector, an open window with a focal plane array for 200Hz high-speed imaging, and can be easily integrated with the GenICamGigE Vision protocol. It reads and analyzes temperatures in real time, actively tracking and capturing the highest temperature areas, allowing personnel to quickly, intuitively, and accurately locate the lithium-ion battery with the highest failure temperature through infrared thermal imaging.
Compared to traditional thermocouples, the FLIRA655sc infrared thermometer is undoubtedly the right choice for lithium-ion battery failure testing.
