Nickel Cadmium (NI-CD) Batteries

27 Feb.,2023


The company has a group of cooperation teams engaged in the Ni-Cd Battery Pack industry for many years, with dedication, innovation spirit and service awareness, and has established a sound quality control and management system to ensure product quality.

In commercial production since the 1910s, nickel-cadmium (Ni-Cd) is a traditional battery type that has seen periodic advances in electrode technology and packaging in order to remain viable. While not exceling in typical measures such as energy density or first cost, Ni-Cd batteries remain relevant by providing simple implementation without complex management systems, while providing long life and reliable service.

How Nickel-Cadmium Batteries Work

Early Ni-Cd cells used pocket-plate technology, a design that is still in production today. Sintered plates entered production in the mid-20th century, to be followed later by fiber plates, plastic-bonded electrodes and foam plates. Cells with pocket and fiber plates generally use the same electrode design for both the nickel positive and cadmium negative, while sintered and foam positives are now more commonly used with plastic-bonded negatives.

All industrial Ni-Cd designs are vented types, allowing gases formed on overcharge to be dissipated but requiring some degree of water replenishment to compensate. This has led to the implementation of separator designs that allow varying levels of recombination, with some products designed for telecom or off-grid renewable energy applications achieving near maintenance-free operation with respect to the electrolyte.

Ni-Cd batteries found use in some earlier energy-storage applications, most notably the Golden Valley Electric Association BESS, sized for 27 megawatts for 15 minutes and commissioned in 2003. Ni-Cd has also been used for stabilizing wind-energy systems, with a 3 megawatt system on the island of Bonaire commissioned in 2010 as part of a project for the island to become the first community with 100% of its power derived from sustainable sources.

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