There is a North Korean student at Tokyo Institute of Technology, Japan. Because he only knows a limited Japanese vocabulary and does not fully understand the mentors, he is doing the key chemistry in the experiment of "using acetylene gas to produce carbon-containing long-chain organic polymer plastics." Substances have been used in excess of the amount, and as a result, black-powders have not been obtained as the usual reactants. Instead, metallic silver-like films have appeared. The North Korean student regrets very much and is worried that the tutor will criticize him seriously. However, this "wrong" experiment was considered as "baby" by the professors of the University of Feira dafil laboratory in the United States. They immediately studied with the tutor and further experiments. Another phenomenon soon appeared. They were overjoyed. . Because when a small amount of iodine is added, an abnormal phenomenon occurs, and the electrical conductivity of this plastic actually increases by hundreds of millions of times. This is really "nothing to break through the money shoes. It takes no effort." "Electrical plastic" was born.
This plastic soon attracted chemists and manufacturers from various countries. Many scientists use it to make some electronic devices (such as radio instruments; diodes or solid-state devices, they were originally made of silicon or other semiconductor materials); some use it to make small experimental plastic batteries. It is 1/3 lighter than ordinary batteries, faster to charge and discharge than lead-acid batteries, and has a long life. It can fully charge and discharge more than 1,000 times, and lead-acid batteries can sometimes be damaged when they are fully charged and discharged. The plastic battery can greatly improve the performance of the battery car and can be widely used in video recorders or large-scale energy storage systems for wind power and hydroelectric power stations. In short, scientists believe that this accidentally discovered conductive plastic has broad prospects for development.
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