Detailed explanation of nuclear battery

A nuclear battery is a battery made using the principle of energy generated by the decay of radioactive materials. In appearance, it is cylindrical, the same as ordinary dry batteries. However, the entire battery structure is different from ordinary batteries. A radioisotope source is sealed in the center of the battery, and a radiation-proof thermionic converter or a thermocouple-type transducer shield is used on the outside, and the outermost is a metal cylinder. The shell is reinforced. What are the advantages and disadvantages of nuclear batteries? The advantage is that it will not be affected by external temperature, chemical reaction, pressure, electromagnetic field, etc. when supplying energy, and the endurance is super (up to 5000 years). The shortcoming is obviously radioactive pollution. I believe everyone is aware of the nuclear and radioactive pollution hazards caused by atomic bombs in Hiroshima and Nagasaki, Japan. According to the energy conversion mechanism, nuclear batteries can be divided into direct rechargeable nuclear batteries, gas ionization nuclear batteries, radiation volt effect energy conversion nuclear batteries, phosphor photoelectric nuclear batteries, thermal photoelectric nuclear batteries, thermoelectric nuclear batteries, There are nine types of thermionic emission nuclear battery, electromagnetic radiation energy conversion nuclear battery and heat-mechanical conversion nuclear battery. At present, the application of nuclear batteries is not too extensive, and what is currently known is used in aerospace and medical equipment. The U.S. Voyager 1 planetary probe used nuclear power to become the farthest and fastest-flying man-made satellite from the earth. my country's Chang'e-3 also uses nuclear power plants. In medical treatment, the most widely used pacemaker is the pacemaker. The power supply of the pacemaker is very small, smaller than a AA battery, and weighs only more than 100 grams. If the radioactive source is 238Pu, 150mg, the pacemaker can continue to work in the body for more than 10 years. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to design lithium ion battery safety