The principle is similar to that of wet batteries.
Fruit power generation refers to a battery that uses chemicals in fruits to react with metal sheets to generate electrical energy. The acid, alkali and other chemicals in the fruit will react with the metal part to produce an electric current.
This reaction is similar to the chemical reaction in wet batteries, which use wet chemicals to produce electricity.
How to generate electricity from the Little Newton fruit of Nanyi Primary School?
The principle of the fruit battery is as follows : The metal part displaces hydrogen ions from the acidic material in the fruit, which can generate an electrical charge.
The reason fruits can produce electricity is that, firstlynt, fruits contain a lot of fruit acid, which is a good electrolyte; the electrochemical activity is different. The most active metal flakes can displace hydrogen ions from acidic substances present in the fruit, which can generate charges and cause voltage changes, thus forming a primary battery.
In the fruit power generation process and voltaic pile experiments, the two metal parts are the same, and the fruit acid contained in the fruit is equivalent to sulfuric acid diluted. In addition, experiments have proven that under the same conditions, different fruit batteries have different voltages. One of the key factors in the formation of fruit batteries is also the acid content of the fruit.
How to make a fruit battery
1. 3 lemons (lime, apple, pear, pineapple are also acceptable).
2. 3 pieces of leatheryour brilliant. We use nickels (or copper foils).
3. 3 galvanized screws (other more active metals can also be used, not necessarily zinc, provided they can be replaced) (or aluminum sheets).
4. 4 wires, preferably with clips on the wires (used to hold coins and copper screws).
5. A knife and small paper stickers.
6. Low voltage light emitting diodes (LEDs). We use the RadioShack model 276-330.
7. A 35mm plastic film shell or similar small container. It is best to use a casing made of opaque black film. (Used to block light and facilitate observation).
8. A nail or small awl (for punching holes in light-shielding containers).
The principle and process of producing electricity from potatoes! ! !
It sJust connect the conductive sheet and wire together, connect a small bulb to the wire, then install the conductive sheet inside the fruit.
Steps of energy production of fruits and vegetables:
The energy production of fruits and vegetables is composed of two or more fruits to strong acidity, such as lemons, oranges. , wires, A circuit made of diodes, zinc foils, copper foils, etc. When the connecting wires of the zinc foil and the copper foil are inserted separately When the fruit is in the fruit, the circuit is activated, and the current generated by the fruit can light up the diode.
Electrolytes refer to substances that can still conduct electricity after being dissolved in water at high temperatures. Most acids, alkalis and salts are electrolytes. Those who cannot conduct electricity, like sugarand alcohol, are not. electrolytes.
The ability of an object to conduct current is called conductivity. Objects are divided into two types according to their conductivity: Conductors and insulators refer to objects that easily conduct electricity, that is, objects that can allow. The current to pass. Insulators refer to objects that do not conduct electricity easily or have poor conductivity.
Fruits and vegetables contain a lot of fruit acid, which is a good electrolyte. The two zinc and copper electrodes inserted into the fruits and vegetables will generate current like a chemical battery, making the diode glow.
One side of the two electrodes is copper and the other side is aluminum (zinc and iron are acceptable) Zn: Zn-> Zn2+ + 2e-;Cu: 2H+ + 2e- - > H2
The overall reaction is the reaction of zinc foam acid to produce hydrogen, but thist hydrogen emerges from the copper. In fact, the more acidic the Cu electrode, the better, and the Zn electrode does not need acid. In the past, more acidic fruits were usually used, but here potatoes are more alkaline. But this does not hinder the reaction of the electrode at both ends. Potatoes provide the acid needed for the chemical reaction to continue the movement of electrons from copper to zinc. Boiling potatoes can increase their potency by about 10 times. In fact, it is best to use acidic fruits like lemon to generate electricity.