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P. Sakthivel ¹, S. Karuppuchamy ¹, G. Paruthimal Kalaignan ¹, T. Vasudevan ¹, Natheera Begam ²

Affiliations
1 Department of Industrial Chemistry, Alagappa University, Karaikudi 630 003, Tamil Nadu, IN
2 Central Electrochemical Research Institute, Karaikudi 630 006, Tamil Nadu, IN

Abstract

The effect of some organic additives on the capacity performance of pressed pellet and sintered plate type cadmium electrodes has been studied. The additives under investigation are benzimidazole and polyvinyl alcohol. The organic electrode additives for the cadmium electrode of the nickel-cadmium battery is aimed mainly for increasing the discharge capacity and minimising the self discharge. It is found that pressed electrode can be used for low rates of discharge whereas the sintered electrodes can be used for both low and high rates of discharge. It is found that pressed electrode can be used for low rates of discharge whereas the sintered electrodes can be used for both low and high rates of discharge. The organic additive sources show better low and high rate performance for sintered cadmium electrodes.

Keywords

Nickel-Cadmium Batteries, Cadmium electrode, Organic additives.

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S. Karthikeyan ¹, S. Karuppuchamy ¹, A. P. Sakthivel ¹, T. Vasudevan ¹, K. N. Srinivasan ¹, S. John ²

Affiliations
1 Department of Industrial Chemistry, Alagappa University, Karaikudi 630 003, Tamil Nadu, IN
2 Central Electrochemical Research Institute, Karaikudi 630 006, Tamil Nadu, IN

Abstract

Detailed dicussion of electroless nickel processes in terms of electrolyte compositions and electroless deposition conditions are reviewed. Electroless deposition of Ni-P, Ni-B, Ni-P-B and their composites with solid particles (SiC, Al₂O₃, Boron, Diamond and PTFE) are considered. Properties of the composites such as micro hardness, wear resistance, friction and corrosion resistance are discussed in terms of coating composition and structure based on literature information.

Keywords

Electroless, Composites, Microhardness, Corrosion Resistance.

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