What is the current status of hydrogen fuel power batteries in terms of safety?

Analysis of the status quo of hydrogen fuel power cells in terms of safety. Regarding hydrogen fuel power cells, people questioned that the gas storage tank exploded because of lack of relevant knowledge, and there is no clear understanding of the current technical level, industry standards, and performance indicators of hydrogen fuel. ▏Although national standards are not uniform, they all fully guarantee safety. In fact, all countries in the world have already formulated relevant industrial standards, although their respective standards are not uniform due to different national conditions. But they all strictly mean the pressure data, and also regulate the safety performance (specific safety performance includes stress, corrosion, leakage, vibration and other specifications and experimental methods), and safety has been guaranteed at the standard level. ▏Matching valve automatic control system The hydrogen concentration ratio used in hydrogen fuel cell vehicles is 99.99%, which is much higher than the 4.0-75.6% concentration ratio when exposed to an open flame. If it encounters an open flame from the outside, the system will automatically close the multi-stage valve body. When the on-board detection system detects hydrogen fuel leakage in the hydrogen storage tank or pipeline, the control system will immediately shut off the hydrogen output to prevent mixing with oxygen and ensure that it will not spontaneously ignite. ▏Hydrogen storage tank structure design and emergency treatment system The hydrogen storage tank itself also has high strength. Taking Toyota Mirai as an example, the gas storage tank consists of a three-layer structure, the innermost layer is made of high-strength polymer, and the middle layer is reinforced carbon fiber. Mixed material with high-strength polymer, the outer layer is a mixed material of glass fiber and high-strength polymer. Hydrogen will not leak from the tank wall in a stationary state, and the structure of the bottle body can be maintained even after being shot through by a gun, so that hydrogen can escape without exploding; when a vehicle catches fire, a valve called a fusible plug will be heated and melted, forcing The hydrogen is discharged at a certain speed. It can be seen that, after years of accumulation and precipitation, hydrogen fuel power cells have already possessed mature safety technology, and their use safety can be fully guaranteed. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.