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. 

Curriculum Notes 

This demo would be appropriate for a unit on electrochemistry.

Lead Time 
One day of lead time is required for this project.

The half-cell reactions for a lead acid battery when it is discharging are:

  • Pb(s) + SO42-(aq) --> PbSO4(s) +2e-E= 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. 

Safety Precautions 

There is no electrolyte in this battery, so you don't need to worry about spills. It is heavy, so be careful handling it. 

Prep. Notes 

This demo is in the prepared demos cabinet.

© Copyright 2012 Email: Randy Sullivan, University of Oregon Chemistry Department and UO Libraries Interactive Media Group