Previously, the use of nuclear power is more common in giant reactors, but now two researchers from the University of Missouri, USA, will bring nuclear into your smartphone.
Baek Kim and Jae Kwon has successfully developed a super battery that is able to survive without running out of power to tens of years or more. Secret of power is not limited to the use of the process of a chemical reaction called 'betavoltaic'.
Not as one might imagine, these batteries do not carry a mini nuclear reactor in it. The nuclear battery still look slim with a thickness of a few millimeters because it still carries the concept of a regular solar cell battery which uses an electric process 'photovoltaic', Extreme Tech (19/09).
The difference, battery solar cell generates electrical energy generated by light particles, on the other hand utilize nuclear battery beta radiation (electrons with large energy) to generate an electric charge stemming from substance 'nuclear' strontium-90. The radioactive substance has its own advantages such as gamma radiation do not result in a famously dangerous. As a result, the radiation from strontium-90 is more easily controlled.
Another advantage of betavoltaic battery is similar to the battery design so that the solar cells in the future can be adapted to be embedded in mobile devices, such as smartphones or tablets. Innovation researchers by adding water at the nuclear battery life is claimed to increase because water is able to absorb the majority of beta radiation.
For some time to come, the nuclear battery will still be used by the military and space agency of the world. Meanwhile, for use in smartphones seems to require further research. Therefore, though can make a smartphone live up to 30 years, this type of battery is still the one issue that radiation can cause cancer.
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