How Batteries Works? Working of Lead Acid Battery Explained With 3D Animation

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00:00How powerful is the lead-acid battery that was invented more than a hundred years ago?

00:05Even in the 21st century, it still plays an important role in many applications.

00:10In the 19th century, Ford, a genius physicist, invented the voltaic pile,

00:16which opened a new era of electrical development.

00:18However, the voltaic pile also had some disadvantages.

00:22The acid on the cotton cloth between the electrodes dried easily,

00:27and it could not be recharged.

00:29It was not until 1859 that the French physicist Plant

00:34invented the world's first rechargeable battery, which was a lead-acid battery.

00:39A lead-acid battery uses lead dioxide as the positive electrode

00:43and lead as the negative electrode, with sulfuric acid as the electrolyte.

00:48Under the chemical action of sulfuric acid, the negative electrode gains electrons

00:53and the positive electrode loses electrons, thus forming a voltage.

00:57When the negative electrode and the positive electrode are connected by a circuit,

01:01for example, a light bulb, the electrons from the negative electrode

01:05will flow to the positive electrode.

01:07These electrons will neutralize the positive charges,

01:10so the electric field of the positive electrode will gradually weaken.

01:14This is the discharge process of the battery.

01:17If a power source with a larger electric field is now added to recharge the battery,

01:22the electrons on the positive electrode of the battery will be drawn away,

01:26and the negative electrode will repel more electrons,

01:30so the voltage of the battery will rise again.

01:32This is the charging process of the battery.

01:35Lead-acid batteries were the first to successfully implement the mutual conversion

01:39between electrical energy and chemical energy.

01:42They have been developed from the laboratory to industrial production

01:46and have undergone many improvements and innovations.

01:49With the development of technology and the improvement of environmental awareness,

01:53the application prospects of lead-acid batteries are still broad.

01:57Although the emergence of new batteries such as lithium-ion batteries

02:01and nickel-iron batteries has had a certain impact on the market share of lead-acid batteries,

02:05lead-acid batteries still have an irreplaceable position due to their advantages

02:10such as stability, reliability, and low price.

02:13Most battery vehicles are still powered by lead-acid batteries.

02:16If you enjoy this video, then hit like and follow for more informative 3D videos.

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