23.1. Electrochemical Cells http://www.ck12.org
FIGURE 23.7
Disassembled CR2032 lithium battery.
From the left (the negative terminal) -
Cup from the inner side with a layer of
lithium (which oxidizes when exposed to
air), separator (porous material), layer of
manganese dioxide, metal grid (current
collector), metal casing (damaged while
opening the cell). On the bottom is plastic
sealing ring.(b) Bi + HCl
(c) Mg + NiO
(d) Pb + Al(NO 3 ) 3
(e) Cr + CuSO 4- What is an advantage of using hydrogen fuel cells to generate power?
Further Reading/Supplementary Links
- Activity series: http://antoine.frostburg.edu/chem/senese/101/redox/faq/activity-series.shtml
- Car battery tutorial: http://www.batterystuff.com/kb/articles/battery-articles/battery-basics.html
- Fuel cell basics: http://americanhistory.si.edu/fuelcells/basics.htm
Points to Consider
- We have talked about the components necessary to create an electrical current, but we have not talked about
the flow of electrons in a quantitative manner. In the next lesson, we will learn how to determine the amount
of electricity generated by an electrochemical cell.