Mobile phones that can charge using any radio waves whether charging is unnecessary are developed

Radio waves are used in various scenes of everyday life such as television, radio, disaster prevention radio, but it became clear that mobile phones that recharge using that radio wave were developed.

It is a good news for those who are suffering from the duration of battery life of mobile phones as it is aiming ultimately to aim to eliminate the necessity of connecting the power cable and charging.

Details are as below.
Nokia developing phone that recharges itself without mains electricity | Environment | guardian.co.uk

According to this article, NOKIA, the world's largest mobile phone maker, has developed a prototype of a mobile phone that can be charged from radio waves such as television and radio, in order to reduce the power consumption during standby.

This means that it charges by absorbing radio waves and converting it into electric current, and it corresponds to a wide band of 500 Mhz to 10 GHz so as to capture as much radio waves as possible.

We have already succeeded in extracting up to 5 milliwatts of electricity from radio waves and future tasks are to make it possible to take out 20 mW power which can keep on standby even without connecting the power cable and charging the battery It is said to be to do.

In addition, it is said that ultimate goal is to be able to take out 50 mW of electric power that can recharge the battery, not only to extract power from radio waves, but also to combine with solar batteries etc. It is thought.

Although it is a period of practical application to worry about, it is said that it will be three to five years later.