Pack of 12 sets Fruit Battery

A fruit battery harnesses the chemical energy present in certain fruits to generate electric current. The fruit, such as a lemon or a potato, acts as an electrolyte, providing ions necessary for the flow of electricity. When two different metals, like copper and zinc, are inserted into the fruit, a chemical reaction occurs. This reaction causes electrons to flow from the metal with a higher electron affinity (zinc) to the one with a lower electron affinity (copper), creating an electric current that can power small devices or light up an LED.

水果電池利用某些水果中存在的化學能來產生電流。 檸檬或馬鈴薯等水果可作為電解質，提供電流所需的離子。 當兩種不同的金屬（如銅和鋅）插入水果中時，就會發生化學反應。 這種反應導致電子從電子親和力較高的金屬（鋅）流向電子親和力較低的金屬（銅），從而產生可為小型設備供電或點亮 LED 的電流。

YouTube : How To Make A Lemon Battery | Johns Hopkins Center for Talented Youth