Here's why:
* Aluminum is highly reactive: It readily reacts with oxygen in the air to form a protective oxide layer. This made it extremely difficult to extract aluminum from its ores using traditional smelting methods.
* Electrolysis was the key: The invention of the electric cell (battery) in 1800 by Alessandro Volta paved the way for the development of electrolysis. This process uses electricity to break down compounds and extract pure metals.
* 1825: The breakthrough: In 1825, Danish physicist Hans Christian Ørsted successfully isolated aluminum by electrolysis. This method became the standard for producing aluminum, making it widely available for industrial and everyday uses.
So, the invention of the electric cell was a crucial turning point in our ability to isolate and utilize aluminum, a metal that is now essential in many aspects of modern life.