nickel cadmium battery

Download Nickel cadmium battery

Post on 24-May-2015

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  • 1. 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 :

2. 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 3. REACTIONS AT ANODE: AT CATHODE : OVERALL REACTION : 4. RECHARGING THE CELL THE CURRENT PASSED IN OPPOSITE DIRECTION THE ELLTRODE GET REVERSED Cd GETSDEPOSITED ON ANODE & NiO2 ON CATHODE NET REACTION: 5. ADVANTAGES FAST AND SIMPLE CHARGE GOOD LOAD PERFORMANCE SMALLER AND LIGHTER LONG LIFE THAN LEAD STORAGE CELL IT CAN PACKED IN A SEALED CONTAINER 6. DISAVANTAGE MORE EXPENSIVE THAN LEAD BATTERY RELATIVELY LOW ENERGY DENSITY ENVIRONMENTALLY UNFRIENDLY 7. USES CALCULATORS 8. USES ELECTRONIC FLASH UNITS 9. USES TRANSISTORS 10. USES CORDLESS APPLIANCES

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