Difference Between Capacitor and Battery

 The attery ad capacitor has similarities, there are several key differences. The potential energy is stored in the electric field while using the capacitor, while the potential energy is stored in the form of chemical energy which is later coveted to electric energy. So here this article gives the main key difference between capacitor ad attery to better understand this topic.

Definition of battery

The battery is a device that consists of two or more units of an electrochemical cell. The positive thermal of the attery is known as the cathode whereas the negative terminal of the battery is known as the anode. The battery is the two types called as the primary battery, and the secondary battery.

Definition of capacitor 

A capacitor consists of two metallic plates or it is a conductor which are separated by a dielectric medium. An electric field set up because of the potential difference between the two conductors or we can say between that they are two plates.

Difference between capacitor and battery:

  • The potential energy is stored in the electric field while using the capacitor, while the potential energy is stored in the form of chemical energy which is later coveted to electric energy.
  • The capacitor is the passive component of a circuit, while the battery is an active component of a circuit.
  • The capacitor has a lower energy density than a battery, while the battery has a better energy density than a capacitor.
  • The voltage decreases rapidly while discharging, while attery provides a constant voltage.
  • The capacitor has a higher cost, while the battery has comparatively cheaper than a capacitor.
  • The capacitor has discharges instantaneously, while the battery runs for a longer time.
  • A capacitor is composed of thin sheet metals held close together or separated by an insulator, while the battery composed of metals and chemicals.
  • Capacitor charging and discharging rates are faster than a battery because it stores energy directly on the plates. While charging the discharging rates comparatively slower because of the conversion of chemical energy to electrical energy. 

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