The development trend of the next generation battery environmental test box
Global electrification is accelerating, safety and cost are barriers that must be overcome on the road to the development of new energy vehicles. As an important part of lithium-ion battery testing, environmental testing equipment has become an important means to improve the safety of power lithium batteries, reduce consumption and save energy. Environmental testing equipment is widely used in various battery materials, batteries, PACK, consumer electronics, and various battery research, testing, energy storage projects, electric vehicles, and electric vehicles. When applied to batteries, “because the reliability of lithium-ion batteries is more complicated, especially for ternary lithium-ion batteries, the time for an accident or explosion may be about 25 seconds, and many devices cannot respond in such a short time.” , Said Shuai Jiaxiong, chairman of Sanmu Technology. Based on this, Sanmu Technology starts from the aspects of long-term low-temperature operation, system safety, intelligence, wind speed, personalization, energy saving, etc., and is committed to making the environmental test chamber the same as the multimeter in the hands of electricians, and can screen the critical point of product reliability at any time to improve The reliability of new energy products reduces the company's safety risks. In terms of long-term low-temperature operation, Sanmu Technology adopts 3D simulation refrigeration technology, and fully considers the overall layout of the system and the reliable service life of all large-scale non-standard equipment, and has designed a device with a lifespan of 5 to 10 years. In terms of system safety, the environmental test box of Sanmu Technology includes at least 5 systems. Among them, the over-temperature protection part, when the temperature in the test box exceeds the scale value set by the mechanical over-temperature protection, the temperature heating of the equipment will be disconnected. The contactor stops heating. In terms of intelligence, Sanmu Technology uses the Internet of Things technology to monitor the safety of batteries and equipment in real time. Whether it is temperature, humidity, light, pressure, or even carbon dioxide data, it can be transmitted to the terminal, and finally realize the realization of people and people, people and machines, and machines. The benign interaction of the machine. In terms of wind speed, Shuai Jiaxiong said: “The wind speed has a great impact on the battery, so we often study the wind speed in the environmental chamber, because the wind speed of each layer determines the cycle life of the battery. Miki has also carried out a lot of research and development in this area. The difference in wind speed environment will cause differences in the product itself, which is a very big impact.' The wind speed of the Sanmu Technology Environmental Test Chamber is normally 0.5 m/s ~ 2.5 m/s, and the subsequent windless or low wind environment test chamber , Will be better applied to battery performance testing and research. In terms of energy-saving design, in the test box operating power test, set the temperature value at 63/-23/-13, take 10.5H as the test time, the ambient temperature ≤28, the total operating power of the test box ≤5.5KW, and the total energy consumption (Power consumption) is only 36 degrees. In addition, Sanmu Technology also provides customized services based on product size and application scenarios, seeking common ground while reserving differences in size and specifications to reduce customization costs; in the coordination of different application scenarios, a method similar to central air conditioning will be followed. Appears in various laboratories. Shuai Jiaxiong believes that 'Internet of Things, long-term low-temperature work, intelligence, energy saving, wind speed, personalization, and high-power downloads will lead the trend of next-generation battery environmental test chambers. Increasingly severe technological competition and technically stuck necks, my country's manufacturing will definitely Developed in my country'.