Gatewaylectrochemistry: Primary and Secondary Batteries

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Ox amp; Red

Half-reactions

Voltaic Cells

Cell Voltage

Calc. Potentials

Batteries

Electrolytic Cells

A Secondary Battery: The Lead Storage Battery (cont.)

The construction and operation of a lead storage cell is summarized below

'click' the buttons to the right to activate the battery.Click the buttons below to activate the battery.

lead storage battery: discharge lead storage battery: rechargelead storage battery: reset
lead storage battery: off

In the battery above, which electrode is serving as the cathode during discharge?

Left Electrode Right Electrode

Good! Lead(IV) oxide is being reduced at the left electrode, making it the cathode.

Remember, reduction occurs at the cathode.




Given the following standard reduction potentials, calculate the number of cells needed in a 12 V lead storage battery; rearrange the half-reactions as needed:

Work through the problem on a piece of paper. When finished, click on each check to reveal answers for each step.


Before moving to the next page, you should know the difference between a secondary and a primary battery. You should also understand the operation of a lead storage battery.


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