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China has created a coin-sized nuclear battery that can go without charge for 50 years!
The atomic energy of betavoltaic batteries can power a variety of devices, from aerospace and robots to your future smartphone, for up to a century without recharging.
In early 2024, the Chinese company Betavolt revealed a coin-sized nuclear battery named BV100 that uses Nickel-63 as its radioactive source, yielding an estimated 50-year lifespan. This acts somewhat like photons hitting a solar panel, but in this case, beta radiation is bombarding a specially designed semiconductor, and this is how Betavolt is powering its batteries. In November 2024, the company received significant funding from the NIH to develop long-lasting betavoltaic batteries for pacemakers (thanks to their low penetration depth, beta particles can be easily shielded from the body).
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