Battery Components
Every automotive battery is built from five core components. Understanding each component's material, design, and function is essential for evaluating battery quality.
| Component | Function |
|---|---|
| Lead Grid | Current collector and mechanical support for active material |
| Separator | Electrically insulates positive from negative plates |
| Electrolyte | Ion conductor — enables electrochemical reaction |
| Battery Case | Container, cover, and terminal seals |
Cross-Section Diagram
┌──────────────────────────────────┐
│ NEGATIVE TERMINAL (-) │ ← Cover
├──────────────────────────────────┤
│ ┌─┐ ┌─┐ ┌─┐ ┌─┐ ┌─┐ ┌─┐ │
│ │-│ │+│ │-│ │+│ │-│ │+│ │ ← Plates + Separators
│ └─┘ └─┘ └─┘ └─┘ └─┘ └─┘ │
│ ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ │ ← Electrolyte
├──────────────────────────────────┤
│ BATTERY CASE │ ← PP Container
└──────────────────────────────────┘