Scientists from Nanyang Technological University (NTU) have developed a battery.
And not just any regular ol' battery, but an eco-friendly battery that is as thin as a piece of paper, cheaper, and also biodegradable.
What is a printed paper battery?
The NTU new release on Dec. 14, 2021, described the battery printed on paper, or printed paper battery, as a sandwich.
Like what makes a good sandwich – ingredients plastered between two slices of bread – the printed paper battery comprises a cellulose paper that is sandwiched between the respective electrodes.
Just like a conventional battery, the printed paper battery also has an anode and a cathode, or a negative and positive terminal respectively, that electrolytes flow between.
These are the conditions required for the electrochemical reaction to produce electrical energy.
The anode or cathode are each printed on an opposite side of the cellulose paper, which has been reinforced with hydrogel to seal up the gaps naturally found in the cellulose fibres.
The hydrogel also acts as a protective separator that prevents the cathodes and anodes from mixing, and prevents short circuits.
According to the news release, the anode ink is mainly made up of zinc and electrically conductive carbon black, while the cathode ink on the other side can be made of manganese or any other metals.
After the electrodes are printed on, the battery is immersed in an electrolyte. A layer of gold thin foil is then coated on the electrodes to...
Read Full Story: https://mothership.sg/2022/01/ntu-paper-thin-battery/
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