ORO551 Chapter Notes -Electrochemical Cell, Lead, Deep Cycle Battery
Document Summary
The battery stores energy in an electrochemical form and is the most widely used device for energy storage in a variety of applications. The electrochemical energy is in a semi ordered form, which is in between the electrical and thermal forms. It has a one-way conversion efficiency of 85 to 90%. There are two basic types of electrochemical batteries: the primary battery, which converts chemical energy into electric energy. The electrochemical reaction in a primary battery is nonreversible, and the battery is discarded after a full discharge. For this reason, it finds applications where a high energy density for one-time use is required. The secondary battery, which is also known as the rechargeable battery. The electrochemical reaction in the secondary battery is reversible. After a discharge, it can be recharged by injecting a direct current from an external source. This type of battery converts chemical energy into electrical energy.
