Cells & Batteries

Cards (5)

What is an electrochemical cell?
An electrochemical cell is a device that can generate electrical energy from the chemical reactions occurring within it.
It is formed from 2 electrodes in contact with each other via a wire and an electrolyte.
What affects the voltage of an electrochemical cell?
The reactivity of the electrolyte and electrodes affects the voltage of a cell
Why do non-rechargeable batteries run out?
The chemical reactants are fully used up- so no more electricity can be produced
How are rechargeable batteries recharged?
The chemical reactions are reversed when an external electrical current is supplied
Are alkaline batteries rechargeable or non-rechargeable?
Non-rechargeable