You can use lemon to charge your phone but how much fruit will we need?

Lemon is a fruit that is so familiar to all of us. Lemon has a lot of effects, which probably can't help but mention cool glasses of hot water on a hot summer day, or an indispensable spice for hot bowls in winter.

However, do you think with just a fresh lemon, can you do the same thing as in the picture below?

can you believe?

To see more clearly, please check out the video below.

Does using lemon charge?

To understand this, we will have to find out how the battery works. Physical learners probably know that a battery or any electrical storage material consists of three parts: anode (anode), anode (cathode) and electrolyte (Electrolyte). In particular, two positive cathodes of the battery made of metal have a difference in electrion, and electrolyte solvents are an acid.

When a device is connected to a battery - such as a light bulb - it forms a closed circuit. At this time, chemical reactions will occur on the electrodes and cause the electrons to move from the cathode to the anode, forming a charge of electricity, which helps electrical devices work.

Structure of the battery to light the bulb.

But of course, there is no battery that is permanent, because the reaction process changes the chemical composition on the two poles until there are no more electrons released. However, for rechargeable batteries (phone batteries, solar cells .), they are designed to power the external source to affect the chemical system, reverse its operation and restore restore the battery charge.

That's enough, so let's go back to our lemon. You know, lemon tastes sour, and the reason is that citrus contains citric acid.

So theoretically, we can generate electricity only from two pieces of metal with different electron structures - like copper and zinc, with citric acid in lemon juice as an electrolyte.

Lemon batteries can generate enough energy to light bulbs .

However, there is a point to note that the voltage produced does not depend on the lemon, but depends on the two electrodes.

With two copper and zinc metal rods acting as electrodes, the voltage generated will be very small, only about 0.96V - that is hardly enough to help electrical devices operate.

The voltage generated does not depend on the lemon, but depends on the two electrodes.

In order to increase the voltage there will be two ways. The first way is to connect multiple "lemon batteries" together, which will increase the voltage at the electrodes.

You can join multiple "lemon batteries" together as shown.

Or use many electrodes on the same lemon like this:

This can be said to be fictional "level max".

Now let's go back to our phone. People just plug the ends of the charger into the lemon and the phone is charged. This can be said to be fictional " level max". Using only 2 electrodes will certainly not generate enough power for this to happen.

However, today's phone batteries will theoretically be charged when receiving power with a voltage of about 3.7V - 4.7V, meaning if we have enough lemon and enough electrodes, charging the battery The phone is absolutely possible. However, because the current is very low, you will need thousands of lemon to fully charge your phone battery.