The principle of the fruit battery is to use the acid in the fruit as an electrolyte to produce an electric current through the transfer of electrons between two metal plates.
I. Production method:
1. Prepare the materials: lemon, copper wire, crocodile mouth wire, iron nails, LED bulbs.
2, cut the lemon into 6 pieces, because tomatoes, apples, oranges, pears, bananas, lemons and other fruits can make batteries, but different fruits produce different voltages and currents.
3, Insert a copper wire and an iron nail into each end of each piece of lemon to make the positive and negative terminals of the battery.
4.Connect the lemon blocks in series with alligator mouth wires, with one positive and one negative wire left over, to the positive and negative terminals of the LED bulb.
5, the LED bulb positive and negative connected to the positive and negative poles of the fruit battery, observed that the LED lights up, indicating that the fruit battery production success.
Two, nature:
1, environmental protection: fruit batteries are an environmentally friendly energy source, and its electrolyte is the acidic substance of fruits, which will not cause pollution to the environment.
2, chemical activity: the chemical substances in the fruit and the metal plate react to produce electricity. Different kinds of fruits have different chemical activity and produce different voltage and current.
Features and applications of fruit batteries
I. Features:
1, low voltage: the voltage of fruit batteries is low, usually only a few volts, so it is safer to use.
2, low current: the current of the fruit battery is also smaller, so it is more energy-saving to use.
3, the use of short life: the service life of fruit batteries is relatively short, usually only a few hours to a day or so.
4, simple to make: fruit batteries are simple and easy to make, just need to cut the fruit into pieces and insert the metal piece.
5, the application of a wide range of scenes: fruit batteries can be used in a variety of areas that require power, such as electronic toys, remote controls, electronic watches and so on.
Two, application areas:
1, education: it can be used as a practical tool for students to learn about chemical reactions and the generation of electricity. By making fruit batteries, students can better understand the principles of chemical reactions and develop the ability of scientific investigation.
2, Emergency power: In some disasters or power outages, people can use fruit batteries to provide power for cell phones, flashlights and other small appliances.
3, scientific research: fruit batteries can provide power for some small experiments or research, such as electron microscopes, spectrometers and so on.
4, electronic toys and home appliances: Fruit batteries can be used as a power source for small electronic toys or home appliances, such as children's toy cell phones, children's toy cameras and so on.
5, remote monitoring and sensing: In some remote areas or occasions where remote monitoring is required, fruit batteries can be used as a reliable power source to provide power for sensors and other devices.
6, medical equipment: in some medical equipment, fruit batteries can be used as a portable and reliable power source, such as medical testing instruments, portable medical equipment.