Batteries

Ancient Origins

The concept of batteries dates back over 2000 years, with the discovery of the Baghdad battery in 1936. This ancient device, a clay pot with a copper tube and iron rod, possibly used vinegar or wine as an acid to create a weak electrical current. Gary Arndt explains that while its purpose remains debated, it could have been used for electroplating or medicinal purposes 1.

On several occasions, people have recreated the Baghdad battery and they were able to produce a weak current.

--- Gary Arndt

This early exploration of electricity laid the groundwork for future advancements, even if its exact historical use is uncertain.

   

18th & 19th Century

The late 18th century marked significant progress in battery technology with the invention of the Leyden jar and the voltaic pile. The Leyden jar, a precursor to modern capacitors, stored static electricity, while Alessandro Volta's voltaic pile in 1800 was the first true battery, using zinc and copper discs separated by brine-soaked cardboard 1. Gary Arndt notes that this innovation allowed for the study of continuous electrical currents 2.

Voltaic pile was able to produce a constant current of electricity, which was something that you couldn't do with a Leyden jar.

--- Gary Arndt

These developments paved the way for more stable and rechargeable batteries in the 19th century.

   

20th Century Advances

The early 20th century saw the introduction of standardized battery sizes and significant advancements in battery technology. The zinc carbon battery became popular, although it had a short lifespan, leading to the development of the longer-lasting alkaline battery in 1949 3. Gary Arndt highlights the revolutionary impact of lithium-ion batteries, introduced in 1991, which offered high energy density and rechargeability 2.

Lithium ion batteries were almost single handedly responsible for the revolution in battery powered wireless devices over the last 30 years.

--- Gary Arndt

These innovations have shaped the modern landscape of portable electronics and electric vehicles.