Lithium battery is easy to heat or the reason for Boeing 787 failure

On the 16th, an All Nippon Airways Boeing 787 passenger plane took off from Ube Airport in Yamaguchi Prefecture, Japan, and rose to a height of 9,000 meters after 15 minutes. The cockpit gauges showed smoke from the power distribution room at the front of the fuselage, and the aircraft’s main battery showed abnormalities , And the cockpit and cabin were full of burnt smells, and the aircraft landed at Takamatsu Airport in an emergency.　　 After the Boeing 787 passenger plane was put into operation, problems such as fuel leakage, brake system failure, and cracks in the window glass during flight occurred one after another. Generally speaking, there will be some failures in the early stage of the new aircraft being put into operation, which are called 'initial adverse reactionsThe report quoted aviation safety consultant Hidetake Sakuma as saying that the aircraft is more prone to fuel leakage when it is filled with fuel for long-distance flight, but it is a very serious situation that the control system is caused by an abnormal battery and it may lead to a crash. . From the common practice in the industry, the current passenger aircraft generally use lead and nickel batteries, but in order to improve efficiency and reduce the size of the battery, the Boeing 787 passenger aircraft uses lithium batteries, and they are manufactured by Japanese companies with a higher level of technology. lithium battery. Sakuma Hidetake said that lithium batteries are often reported as thermal failures. The main reason for this series of failures may be lithium batteries.　　 Tokyo Institute of Technology Associate Professor Hanaoka Shin also said that lithium batteries are devices that are prone to heat, especially the repeated expansion and compression of aircraft affected by changes in air pressure during flight, which may cause lithium batteries to catch fire.