2. DESCRIPTION
 IT CONSISTS OF CADIUM ANODE AND
A METAL GRID CONTAINING A PASTE
OF NiO2 ACTING AS A CATHODE
 THE ELECTROLYTE IN THE CELL IS KOH
IT IS REPRESNTED AS :

3. WORKING (Discharging)
 WHEN THE NICAD BATTERY OPERATES,
AT THE ANODE CADMIUM IS OXIDISED
TO Cd2+ IONS AND INSOLUBLE
Cd(OH)2 IS FORMED
 IT PRODUCES ABOUT 1.4V

4. REACTIONS
 AT ANODE:
 AT CATHODE :
 OVERALL REACTION :

5. RECHARGING THE CELL
 THE CURRENT PASSED IN OPPOSITE
DIRECTION
 THE ELLTRODE GET REVERSED
 Cd GETSDEPOSITED ON ANODE & NiO2
ON CATHODE
 NET REACTION:

6. ADVANTAGES
 FAST AND SIMPLE CHARGE
 GOOD LOAD PERFORMANCE
 SMALLER AND LIGHTER
 LONG LIFE THAN LEAD STORAGE CELL
 IT CAN PACKED IN A SEALED CONTAINER

7. DISAVANTAGE
 MORE EXPENSIVE THAN LEAD BATTERY
 RELATIVELY LOW ENERGY DENSITY
 ENVIRONMENTALLY UNFRIENDLY

8. USES
 CALCULATORS

9. USES
 ELECTRONIC FLASH UNITS

10. USES
 TRANSISTORS

11. USES
 CORDLESS APPLIANCES