The battery is an invention that has greatly improved life for humans. During my research, I was surprised to discover that the battery existed in ancient civilizations, though it was obviously very different than it is today. The earliest known battery was the "Baghdad Battery", a terra-cotta jar discovered from Mesopotamia. Inside the jar was a sheet of copper surrounding an iron rod, and certain chemicals were added to create a reaction and produce power.
Many years later, the modern idea of the battery was born when Benjamin Franklin created a set of capacitors, which were glass panels lined with metal. They could be charged and discharged with a static generator, therefore creating electricity. For the next few centuries, numerous inventions and discoveries helped the battery progress into a more efficient invention. Once the 20th century rolled around, scientists experimented with different elements to enhance the battery's performance. There was the nickel-iron battery, the zinc-carbon battery, the nickel-hydrogen battery, and the lithium ion battery. Today, people can use primary batteries, which work immediately upon use, or secondary batteries, which are rechargeable.
Without all this research that has helped develop the battery, our lives today would be more difficult than we can imagine. Batteries are a convenient source of power that allow us to enjoy amazing privileges and we owe a lot of gratitude to those who have put time and effort into this great invention.
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