Download - Nickel cadmium battery
Transcript
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 :
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
RECHARGING THE CELL
THE CURRENT PASSED IN OPPOSITE DIRECTION
THE ELLTRODE GET REVERSED Cd GETSDEPOSITED ON ANODE & NiO2
ON CATHODE NET REACTION:
ADVANTAGES
FAST AND SIMPLE CHARGE GOOD LOAD PERFORMANCE SMALLER AND LIGHTER LONG LIFE THAN LEAD STORAGE CELL IT CAN PACKED IN A SEALED
CONTAINER
DISAVANTAGE
MORE EXPENSIVE THAN LEAD BATTERY RELATIVELY LOW ENERGY DENSITY ENVIRONMENTALLY UNFRIENDLY