Three students of the Department of Chemistry Sepuluh Nopember Institute of Technology (ITS) Surabaya, namely Febrilia Agar Pramesti, Abduh Muharram Chairacita, and Princess Augista Nur Azizah created a gel battery utilizing tomato juice as a substitute for harmful chemicals in the battery.
The director of the work of innovation, Randy Yusuf Kurniawan in Surabaya, said in the composition, the battery has electrolytes (chemicals) are harmful to the environment, such as lithium and lead. Moreover, if the substance reacts will cause explosion and poisoning in the body.
"The tomato-acidic fruit is measured in its acidity through vitamin C levels and produces 10-40 milligrams of vitamin C per 100 grams of tomato, which is raw tomatoes until cooked by taking the tomato juice first by juicing and then tested," he said.
He explained, acid as a source of protons, when it reacts with electrodes to produce electrons that flow into the outer circuit so that the flow of electricity occurs.
"However, the tomato juice is still a liquid, in which the liquid electrolyte produces a small electrical voltage," he said.
Consequently before assembled into a battery, tomato extract is added biopolymer in the form of agarose to become gel-shaped electrolyte. The addition of agarose is capable of increasing the density or electrolyte density.
The director of the work of innovation, Randy Yusuf Kurniawan in Surabaya, said in the composition, the battery has electrolytes (chemicals) are harmful to the environment, such as lithium and lead. Moreover, if the substance reacts will cause explosion and poisoning in the body.
"The tomato-acidic fruit is measured in its acidity through vitamin C levels and produces 10-40 milligrams of vitamin C per 100 grams of tomato, which is raw tomatoes until cooked by taking the tomato juice first by juicing and then tested," he said.
He explained, acid as a source of protons, when it reacts with electrodes to produce electrons that flow into the outer circuit so that the flow of electricity occurs.
"However, the tomato juice is still a liquid, in which the liquid electrolyte produces a small electrical voltage," he said.
Consequently before assembled into a battery, tomato extract is added biopolymer in the form of agarose to become gel-shaped electrolyte. The addition of agarose is capable of increasing the density or electrolyte density.
