Positive Plate
The positive electrode uses nickel hydroxide as the active material.
Functions:
- Stores positive charge
- Supports electrochemical reactions
- Determines capacity stability
Negative Plate
The negative electrode consists primarily of cadmium-based active material.
Functions:
- Accepts electrons during charging
- Delivers electrons during discharge
Electrolyte
Unlike lead-acid batteries, NiCd batteries use potassium hydroxide solution.
Advantages:
- Stable chemistry
- Excellent temperature tolerance
- Long operational life
Separator
Separators prevent short circuits while allowing ion movement.
High-quality separators improve:
- Safety
- Reliability
- Lifespan
Cell Container
Industrial cells are typically housed in durable steel or engineered polymer containers designed for long-term industrial environments.