What is the underlying principle that a lead storage battery can be recharged ?

Explanation

To understand the underlying principle that allows a lead storage battery to be recharged, we can break it down into several key steps:

### Step-by-Step Solution:

1. **Understanding the Lead Storage Battery**:
- A lead storage battery, also known as a lead-acid battery, consists of lead (Pb) and lead dioxide (PbO2) as the electrodes, and a sulfuric acid (H2SO4) solution as the electrolyte.

2. **Discharge Process**:
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