I have no life, but I can die. What am I?

This intriguing riddle perfectly describes an everyday object that powers countless devices around us. While it doesn't possess biological life, it certainly has a finite lifespan, making its "death" a common occurrence.

A battery operates on the principle of converting stored chemical energy into electrical energy through electrochemical cells. Each cell contains two electrodes and an electrolyte, which allow a chemical reaction to generate electrical energy. This process doesn't involve any biological functions; batteries don't breathe, grow, or reproduce. They are inanimate objects designed for a specific energy-delivery purpose.

However, these chemical reactions are not endless. As a battery is used, the reactants are consumed, and the chemical potential diminishes. This process is called discharge. Eventually, the battery can no longer sustain a useful electrical current, a state colloquially referred to as "dying". For single-use batteries, also known as primary cells, this means their useful life is over once the chemicals are exhausted, and they cannot be recharged. Rechargeable batteries, or secondary cells, can be "resurrected" by reversing the chemical reactions through an external power source, allowing them to provide energy again. However, even rechargeable batteries have a limited number of charge-discharge cycles before their capacity degrades, and they eventually "die" permanently due to factors like parasitic reactions and the reduced movement of ions.

The invention of the battery dates back to 1800 when Italian physicist Alessandro Volta created the first true battery, the voltaic pile, based on the principle of electrical current generated between two different metals joined by a moist intermediary. This groundbreaking invention laid the foundation (Review) for modern chemical batteries, which today come in various types, including the common dry cell, alkaline, lead-acid, and lithium-ion batteries, each with its own chemical composition and lifespan.