Batteries In Everyday Life
Batteries have become so ubiquitous in every day life, it is almost impossible to imagine a time when mobile energy storage didn’t exist. For portable electrical devices such as flashlights, radios or remote controls, more than 15 billion single-use batteries are sold worldwide every year, and that trend continues to rise. However, rechargeable batterytechnology used in digital devices like cameras, cell phones, and laptops has seen massive advances in development in recent years, with production levels increasing dramatically at the same time. Perhaps the greatest leaps in battery technology, and of particular importance for the future of global ecosystems, comes from the automotive industry in the form of hybrid cars and electric vehicles – most of which are charged using lithium-ion batteries. The road to our current state of battery knowledge has been a long one, and actually began over 200 years ago!
Left: Anatomy of a galvanic cell, which is composed of two half cells connected by an external wire and salt bridge. Source: https://glossary.periodni.com Right: The volta column, which is composed of several galvanic cells stacked together, was invented by Allesandro Volta in 1800. Source: https://www.akku.net/