In life, it’s sure that you must be worrying about that whether your cell phone battery is  adequate. So if you do not need to charge the battery for a few months, you will cheer up immediately, if give you a battery that you do not have to recharge it for your whole life, will you be extremely surprised? If give you a battery that hundreds of generations do not have to charge, will you think this is a myth? Tell you right now: American scientists have created this myth. So how myth is created? Originally, earlier, scientists have found that when radioactive materials decay, they can release charged particles, if certain special measures taken, charged particles would be able to be put together and form the current . Scientists later invented large-scale nuclear batteries for industrial and aerospace industries according to the principles . Such as in the aerospace field, nuclear batteries will be installed in the satellites that the solar is not enough, or installed in unmanned spacecraft that launched on the outer solar system. Unfortunately, because of the nuclear battery must be equipped with a collection of charged particles of solid semiconductors, but the role of radiation makes solid semiconductor soon be damaged. And to reduce the extent of the damage, the nuclear battery would have to be done big enough. Because of the nuclear batteries is hard to become smaller, so it is difficult to be used in small or micro-electronic devices. Naturally it is difficult to be made as a mobile phone battery. Until recently, the situation has a turning point, U.S. scientists came up with a nuclear battery "downsizing" coup. They replace the solid semiconductor that are easy to be damaged with the liquid semiconductors, which not only can complete the collection of charged particles mission, but also substantially "downsizing". The new ones have circular diameter of 1.95 cm nuclear battery, only 1.55 mm thick, and slightly bigger than 1 cent coin, but it is 100 times of the ordinary chemical battery. Scientists believe that in the distant future, tiny nuclear battery would be widely used to small and micro-electronic systems, such as blood samples for analysis in micro-electronic instrument. Nuclear battery power has a very long time, only a coin-size batteries can let our phone be used as long as 5000 years without charging. In addition, as the popular electric car batteries, they also have the potential to not charge. As to whether the battery will occur the nuclear pollution, scientists have pointed out that the problem has been solved when the invention comes out, people do not have to worry about.