Small and cheap batteries could be used to make a lot of electronic devices.
Paper batteries can be used to power an alarm clock.
There is a man named Alexander Poulin.
A battery made from paper coated with zinc dust can provide power for a range of tiny disposable electronics, with possible uses in real-time delivery tracking and even cheap medical sensors. When water is added to the batteries, they start producing current.
A group of people at the Swiss Federal Laboratories for Materials Science and Technology (EMPA) printed a strip of paper with ink on one side that was made out of Graphene. They printed with zinc powder on the reverse side.
Until a drop of water is added, the strip of paper won't work. The electrons begin to flow when the paper is moistened.
The researchers created a battery from two paper cells and used it to power an alarm clock. After two drops of water were added, the battery produced current.
The power went off as the paper dried out. It took another hour after another drop of water was added. The capacity of the battery will be determined by the zinc deposited on the paper.
The paper and zinc are not harmful to the environment and can be recycled.
The batteries could be used to track parcels in real time, to make supply chains more efficient, or to help recycle food packaging at the end of its life.
He says that with a low power output you shouldn't think about anything fancy. We have had developments with power consumption and sensor usage. These two things coming together will allow us to do some useful tasks even with the simpler systems.
The scientific reports is a journal.
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