Seethrough Lead-Acid Battery
Three of the sides of this three-cell, six volt, lead-acid battery are transparent so that the inner construction of the battery may be observed.
This demo would be appropriate for a unit on electrochemistry.
The half-cell reactions for a lead acid battery when it is discharging are:
- Pb(s) + SO42-(aq) --> PbSO4(s) +2e-; Eo = 0.356 V
- PbO2(s) + SO42-(aq) +4H+ + 2e- -->PbSO4(s) +2H2O(l);Eo=1.685 V
- seethrough lead-acid battery
The battery may be presented to the class and students can be invited to inspect it after class.
There is no electrolyte in this battery, so you don't need to worry about spills. It is heavy, so be careful handling it.
This demo is in the prepared demos cabinet.