At the heart of this battery developed by the laboratory of Nanyang Technological University is a sheet of cellulose paper. Once unloaded, it takes a month to completely degrade in the soil without leaving toxic waste.
Connected devices are multiplying. They would be 35 billion this year and they all have one thing in common: a battery to power them. Even though it is now possible tothe elements of a 95% lithium-ion, that’s astronomical amounts of small, disparate batteries to collect and process.
While there are already electronic devices . Their prototype battery measures 4 cm² at the moment. According to the lab, she would be able to power a small electric fan for 45 minutes. At the heart of the battery is a sheet of paper which acts as a separator between . To seal the fibers, a is employed.disposable like environmental issues, why not do the same with a battery? This is the question answered by a team from Nanyang Technological University in Singapore, creating a incorporating biodegradable cardboard, and whose research has been published in
Biodegradable in one month
L’and the are screen printed with conductive ink on both sides of the paper. The anode ink consists of and black of . The latter is generally used as a conductive additive in batteries. On the cathode side, the ink contains and you . A thin film of gold is added to the electrodes to the . The whole is immersed in the electrolyte. The 0.4 mm thick has an additional advantage: it can be twisted or bent without affecting performance.
For the side, when the battery is discharged and buried in the ground, it completely disintegrates after a month according to scientists. So obviously, the nickel or manganese in the ink will not disappear, but once oxidized, they will be close to natural. It is the same for the zinc which will lose its when he will be too. According to scientists, the battery can just as easily be rechargeable and its flexibility could allow it to be used in any accessory connected as a battery.