In the previous article we discussed how batteries work . We said that batteries are created by chemical reactions that produces electrons. Now University of Miami, Tokyo and Tohoku researchers have proved that electric batteries can be created without a chemical reaction. In fact, they have shown that by applying large magnetic field to nano-magnets we can create a battery. This discovery has potential for creating inexpensive batteries that can be used in variety of things such as mobile phones, etc.
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As prove of concept, the researchers have created a device that is the diameter of human hair which produces voltage for long period of time. In this device there are no chemicals that produce electrons; instead magnetic energy is directly converted to electrical energy.
Advantages to this new method are that it can produce more energy, and would be less expensive as magnets are abundantly available. As one of the researches Stewart E. Barnes said
“There are magnets hidden away in many things…There are so many that even a small change in the way we understand of how they work, and which might lead to only a very small improvement in future machines, has a significant financial and energetic impact.”
If this battery can truly maintain its energy for long time and is inexpensive it can potentially be used by electric cars. Now that’s the future we all hope for.