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Model Number: KX1103-A

Product Name: Fruit Power A (Splicing)

Size: Approximately 140*95*24 mm

Weight: Approximately 7 KG

Material: copper sheets, zinc sheets, terminal wires, conductive wires, LED

Color: Mixed Color

Battery usage: No

Packaging: 240 pcs

Box dimensions: 360*360*415 mm

Model Number: KX1103-B

Product Name: Fruit Power B (Screw Cap)

Size: Approximately 140*95*24 mm

Weight: Approximately 8 KG

Material: copper sheets, zinc sheets, terminal wires, wires, LEDs, meter core.

Color: Mixed Color

Battery usage: No

Packaging: 240 pcs

Box dimensions: 360*360*415 mm

Electrodes and electrolyte

• Electrodes: In fruit power generation devices, two different metal sheets are usually inserted as electrodes, such as zinc sheets and copper sheets. Due to the different atomic structures of these metals, their ability to lose or gain electrons in an electrolyte solution varies.

• Electrolyte: Fruits contain various electrolytes, such as organic acids like citric acid and malic acid, as well as mineral ions like potassium and sodium. These substances dissolve in the water within the fruit to form electrolytes.

Redox reaction

• Zinc sheet reaction: In the electrolyte, zinc has strong metallic activity and easily loses electrons, undergoing an oxidation reaction. It turns into zinc ions that enter the fruit’s electrolyte. The electrode reaction is: Zn – 2e⁻ = Zn²⁺.

• Copper sheet reaction: Certain oxidizing substances in fruits gain electrons on the surface of the copper sheet, resulting in a reduction reaction. In an acidic environment, hydrogen ions gain electrons on the copper sheet surface to form hydrogen gas. The electrode reaction is: 2H⁺ + 2e⁻ = H₂↑

Electronics and ion movement

• Electronic movement: The electrons lost by the zinc sheet flow to the copper sheet through an external wire, resulting in an electron flow from the zinc sheet to the copper sheet—this is what we call current, which allows electrical devices such as small light bulbs connected to the circuit to emit light or function.

• Ion movement: Within the electrolyte in fruits, ions move directionally to maintain charge balance. Near the zinc sheet, an increase in zinc ions results in positive charges, attracting anions from the fruit toward the zinc sheet; near the copper sheet, hydrogen ions gain electrons to form hydrogen gas, reducing positive charges, which attracts cations toward the copper sheet.

Due to the different types and concentrations of electrolytes in various fruits, their power generation effects vary. For example, acidic fruits such as lemon juice have high hydrogen ion concentrations, resulting in relatively higher power generation efficiency.

Production step diagram: as follows