What is a Button Battery?

A button battery is a single cell, small cylindrical battery made of lithium or alkaline.

Composition of a Button Battery

Mechanism of Injury

Tissue damage from alkaline injury which causes liquefaction necrosis. Lithium batteries are worse than other batteries as they have a higher capacitance. Even “dead” batteries can cause tissue damage in a moist environment such as the esophageal mucosa.

Battery burning through ham

Read more about the mechanism of injury at the

US Poison Control website