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Nickel Zinc (NiZn) Batteries

Characteristics

This rechargeable battery like the Nickel Iron battery uses an alkaline electrolyte.

Nickel-Zink batteries were developed as replacements for military Silver-Zinc batteries.

Cell voltage 1.65 Volts

Advantages

High rate capability (25C)

Good cycle life

Fast recharge capability

Can be deep cycled down to 100%.

Uses low cost benign materials.

Shortcomings

Heavy and bulky.

Low energy density.

High self discharge rate.

Solubility of zinc in the alkaline electrolyte limited life cycle.

Formation of zinc dendrites across the electrodes during recharge results in short circuiting and shortened life.

Applications

Traction applications

Electric Bicycles

Scooters

Lawnmowers

Costs

Low cost but higher than Lead acid

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History  

Cell Chemistry Comparison Chart

 

 

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