A zinc-carbon dry-cell battery
An illustration of a zinc-carbon dry cell. In it, a zinc casing acts as the anode, surrounding a carbon rod, which acts as a cathode. Between them, the electrolyte paste works as the battery.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Free High School Science Texts Project, Siyavula Textbooks: Grade 12 Physical Science. October 30, 2012."
http://cnx.org/content/m39485/1.1/?collection=col11244/latest
OpenStax CNX
CC BY 3.0.