What is a micro battery/button cell?
A “button cell” should actually be better called a “button battery”, because it hasthe external attributes of a battery (further information) . Its popular name, however,is “button cell”. A button cell may be defined as a battery whose diameter is equalto or larger than its height. Present dimensional limits for button cells using anaqueous electrolyte range from a) diameter: 4.8 mm to 11.4 mm, b) height: 1.05 mm to 5.4 mm. Depending on the electrochemical system their nominal voltage iseither 1.2V, 1.35V, 1.4V, 1.5V or 1.55V. Batteries of this family were given this name because of their visual similarity to buttons. Coin Cells also belong to the group of button cells (further information).
