In the current era of rapid development in the new energy industry, the safety performance of lithium batteries has garnered increasing attention. The heat release rate serves as a crucial indicator for assessing the safety of lithium batteries, and thus, lithium battery heat release rate testing systems have emerged. The PX08002 UL9540A lithium battery heat release rate testing system from Jiangsu Fairman Safety Technology Co., Ltd. has become an industry benchmark due to its exceptional performance.
The system strictly adheres to the ANSI/CAN/UL 9540A:2019 standard, precisely calculating the heat release rate based on the oxygen consumption principle. It is capable of comprehensively detecting the combustion behavior and performance of lithium batteries under thermal runaway conditions, accurately measuring core data such as heat release rate, total heat release, and smoke density. In terms of structural design, the smoke hood and smoke duct are made of 304 stainless steel, with a smoke duct diameter of 400mm. Both the front and rear are equipped with flow equalizer devices to ensure uniform and stable gas flow. The fan's smoke exhaust capacity reaches 4kg/s, paired with an independent variable frequency control cabinet that allows for continuous frequency adjustment to reduce signal interference. Additionally, a shock absorption system is equipped to ensure stable operation.
The test section adopts a union joint design, facilitating the connection of various detection components and ensuring convenient and efficient disassembly and maintenance. Equipped with an OMEGA thermocouple, it can accurately measure the temperature of flue gas inside the smoke tube and the ambient temperature. The optical system uses an imported bulb as the light source, paired with a regulated power supply, and the receiving terminal selects an imported optical receiver, providing stable signals and multi-level calibration verification functions. The differential pressure measurement utilizes a standard bidirectional probe and Setra differential pressure sensor, ensuring reliable measurement accuracy.
The gas analysis system boasts outstanding performance. The paramagnetic O₂ analyzer and infrared CO₂, CO analyzers cover key gas concentration ranges, achieving industry-leading accuracy and repeatability, with a response time faster than 8 seconds. In terms of electrical control, the self-designed electrical cabinet houses an integrated touch computer, paired with Siemens control modules, enabling precise control and data acquisition. The host computer software is developed on the NI Labview platform, supporting multiple calibration modes, real-time display of core parameters, and generation of professional reports.
In addition, the system can be equipped with a heat flux testing system, temperature acquisition system, etc. according to specific needs, meeting testing requirements of different levels. Its comprehensive functions, precise detection capabilities, and stable performance make it highly valuable in the field of new energy battery testing, ensuring the safety of lithium batteries.
