What is the Difference Between Cell and Battery?

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The main difference between a cell and a battery is that a cell is a single unit that converts chemical energy into electrical energy, while a battery is a collection of cells that converts chemical energy into electrical energy. Here are some key differences between cells and batteries:

  • Structure: A cell is a single-unit device that contains chemical energy sources like natural gas, diesel, or propane, and converts these into electrical energy. A battery, on the other hand, consists of a group of cells connected together.
  • Functionality: Cells generate energy by converting available resources, while batteries store electrical energy in the form of chemical energy.
  • Types: Cells can be classified into different types depending on the kind of electrolytes used, such as wet, dry, fuel, or reserve types. Batteries can be either primary (non-chargeable) or secondary (chargeable).
  • Size and weight: Since a cell has only one unit, it is typically compact and light. Batteries, being a collection of multiple cells, can be larger and heavier.

In summary, a cell is a single device that generates electricity through chemical reactions, while a battery is a collection of cells that store electrical energy. Cells are used in various applications, including electronic gadgets and equipment, while batteries are used in devices that require a more reliable source of power.

Comparative Table: Cell vs Battery

Here is a table comparing the differences between a cell and a battery:

Feature Cell Battery
Definition A cell is a single unit that converts chemical energy into electrical energy. A battery is a combination of electrochemical cells that convert chemical energy into electrical energy.
Components Consists of two electrodes (cathode and anode) and an electrolyte. Comprises one or more electrochemical cells with an external connection.
Types Wet, dry, reserve, and fuel cells depending on the electrolyte used. Primary (non-rechargeable) and secondary (rechargeable) batteries.
Size Light and compact due to its single unit. Bulky and heavy due to the combination of cells.
Power Supply Supplies power for a short duration. Can supply power for long durations.
Applications Used in devices like clocks, lamps, and radios. Used in portable electronics and heavy-duty applications.
Cost Cheaper compared to batteries. More expensive than cells.

In summary, a cell is a single unit that converts chemical energy into electrical energy and is used for lighter tasks or smaller devices, while a battery is a combination of cells that stores electrical energy and is used for heavy-duty applications or devices requiring more power over a longer duration.