The Reaction That Powers Batteries

Batteries work through redox reactions—one side loses electrons, the other gains them.
The flow of electrons between electrodes creates usable electric current.
The anode undergoes oxidation, releasing electrons into the circuit.
The cathode undergoes reduction, accepting those electrons.
Electrolytes allow ions to move between electrodes to balance charges.
Common batteries use zinc, lithium, or lead in their reactions.
Rechargeable batteries reverse the redox reaction when plugged in.
Voltage depends on the materials used for anode, cathode, and electrolyte.
Every phone, car, and remote control relies on these simple reactions.
Battery chemistry is advancing to make energy storage safer, lighter, and longer-lasting.