According to Battery.com.cn, recently, there are online rumors that potatoes can be used as batteries. Is this true? In this regard, the column group reporters conducted experiments in accordance with the methods provided by netizens.

【experiment】

At the scene, we specially prepared fresh potatoes, zinc flakes, copper sheets, wires (experimental equipment commonly used in middle school physics classes, copper is positive, zinc is negative), and an electronic alarm clock.

Insert zinc and copper into the potatoes

According to the method provided by the netizen, the program group took a potato, cut two knives, set aside enough length and depth, and then inserted the zinc and copper pieces into the potatoes. Remove the 7th battery installed in the working electronic alarm clock, and connect the lead wires to the copper and zinc sheets respectively. In order to establish a better connection between the potatoes and the alarm clock, a small metal is inserted in the positive pole of the alarm clock. Tablet, then connect the potatoes and an electronic alarm clock.

The copper piece is connected to the positive electrode, and the zinc piece is connected to the negative electrode. If the potato can really be used as a battery, the electronic alarm clock screen will display the power light. It was observed that the screen of the electronic alarm clock did not change.

Is the rumor that "potato can be used as a battery" is false? Actually, when the experiment is repeated, the program group adds a potato on the original basis. It is also the original method, and the copper piece is inserted on the newly added potato. And the zinc sheet, and the two potatoes are connected in series in the order of the positive and negative electrodes, that is, copper, zinc, copper, and zinc, and then connected with an electronic alarm clock. At this time, a miracle appeared, and the electronic alarm clock screen showed a digital display.

【in conclusion】

Why is this? In fact, the principle is very simple. This "potato battery" works similarly to ordinary batteries. Copper and zinc sheets correspond to the positive and negative electrodes of the battery. Potatoes provide acid, and positive and negative electrodes, that is, copper and zinc sheets, occur under the action of acid. Chemical reaction to produce electrical energy.

Experiments have found that two potatoes can power an electronic alarm clock for about three days.

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NO.	ITEM	Technical Parameter
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4	Loading and discharging	Fully Automatic Feeding and Discharging under High Temperature at Same Time
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