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Spontaneous combustion of power banks, be alert to potential safety hazards in daily life


Time:

2021-06-07

On February 25, when a China Southern Airlines flight from Guangzhou to Shanghai was boarding, the luggage rack caught fire. It was investigated that the power bank carried by a passenger was smoking and catching fire. The passenger involved was taken away by the police for investigation, and the flight and crew were replaced.

On February 25, when a China Southern Airlines flight from Guangzhou to Shanghai was boarding, the luggage rack caught fire. It was investigated that the power bank carried by a passenger was smoking and catching fire. The passenger involved was taken away by the police for investigation, and the flight and crew were replaced.

After the spontaneous combustion incident, the question of flight safety is naturally the first to bear the brunt. Previously, the Samsung Note7 mobile phone explosion problem once caused the civil aviation administration to ban the Samsung Note7 mobile phone from being carried on the machine. So, is it possible to impose a similar ban on good and bad, uneven power banks? This is probably unrealistic. From a safety perspective, since lithium batteries are at risk of use, banning them is undoubtedly the best way to deal with them. However, because electrical appliances such as power banks are widely used, being banned from being carried on the plane may cause great inconvenience to passengers. And if power banks are to be banned, shouldn’t mobile phones be banned? Power banks use lithium batteries and mobile phones. Lithium batteries are also used, and the safety risks they face are not much different.

Preventing inferior products from getting on the machine may be a workaround. The problem is that airlines and airports are not professionals, and it is difficult for them to judge what kind of power bank is inferior and what kind of power bank is safe. Look at the brand? Brands are not a safe package. Brands are as big as Samsung and their batteries explode. Therefore, the best prevention method is to strengthen the safety of lithium batteries. This requires joint efforts from manufacturers to regulatory authorities. Since the security clearance, these basic tasks cannot be expected to be solved at the boarding gate.

In this dangerous situation of China Southern Airlines, because of timely and professional handling, the danger did not lead to a greater disaster. But the impact of this incident extends far beyond the airplane. With the wide range of applications of lithium batteries and the closeness to citizens' lives, they have reached the point of ubiquity. On an airplane, it is a matter of flight safety. In another scenario, it may also be a matter of personal safety at home. Someone needs to remind the public, and also need more professional prevention knowledge. Take the issue of fire extinguishing, for example, some netizens complained that flight attendants used mineral water to extinguish fires as "very unprofessional", and some questioned whether there is no fire extinguisher on the plane. After the explanation by professionals, the public understood the truth. Regarding the issue of how to extinguish the fire of lithium batteries on airplanes, the standard operation recommended by the Civil Aviation Administration of China is to use water extinguishing as the first choice for emergency treatment, because it can eliminate open flames and has a certain cooling effect. In other words, the flight attendant water is not only the right solution, but also the best solution. The flight attendants provide catering services at any time, so using mineral water can be said to be the fastest and most effective method of disposal. Netizens said that "using a foam fire extinguisher" is an extremely dangerous operation, because the sprayed foam adheres to the periphery of the battery to form a thermal insulator, thereby increasing the chemical reaction and generating more heat.

Through this process of questioning and dispelling doubts, the knowledge of fire extinguishing of lithium batteries has been more popularized, which can be regarded as a windfall outside of the accident. Don't underestimate this kind of science popularization process, it may play a role at critical moments.

This dangerous situation also exposed a problem that is usually overlooked by everyone. The power bank is basically the standard equipment of the family. The price is high or low, and the quality is uneven, but there is a lot of randomness in use. How to use it is safe, and how to carry it is not easy to cause problems? The spontaneous combustion of the power bank on the luggage rack was discovered and disposed of in time, avoiding greater disasters, but the power bank at home is often not paid attention to. Is it safe to store it? Does the public have the ability to handle flight attendants? This is really a question.