Simple Nickel Cadmium Battery Diagram

Today we are going to build charger circuit for charging ni cd battery the process of charging nickel cadmium batteries can be done in two ways.

Simple nickel cadmium battery diagram.

Nickel cadmium batteries generally require a constant current charging. Ni cd batteries contain between 6 for industrial batteries and 18 for commercial batteries cadmium which is a toxic heavy metal and therefore requires special care during battery disposal. The circuit of nicd battery charger is shown above. They operate over a wide temperature range give approximately 2000 cycles and can be charged in less than 1 h.

Figure 1 shows a schematic diagram of a simple circuit that can be used to dissolve the whisker formation that prevents nickel cadmium batteries from receiving a charge the circuit consist of nothing more that two fully charged series connected nicad batteries b1 and b2 and a switch s1. This circuit uses a microcontroller and simple algorithm managing voltage regulator ics and discrete components to control charging of nickel cadmium batteries. Nickel cadmium batteries at the 1 2h rate yield twice the energy density of lead acid batteries i e. Nicd batteries provides better performance in compact size.

In the united states part of the battery price is a fee for its proper disposal at the end of its service lifetime. Nickel cadmium batteries are used in various developmental electric vehicles. Circuit diagram circuit operation. We know the nickel cadmium battery is called as nicd battery or nicad battery and this types of rechargeable batteries are made with nickel oxide hydroxide and metallic cadmium as electrodes.

This circuit can also recharge common dry cell battery for fewer times at certain level. Previously we have built many types of charger circuits that incudes solar mobile charger float charger circuit 12v battery charger power bank circuit etc. This circuit has a built in automatic current regulator. It provides a steady charging.

Simple nicd battery charger circuit made with few easily available. The chemical conversion is reverted when a discharged battery is charged again. Nickel cadmium cells have potential of 1 2 v. When fully charged the positive plate is ni oh 2 and negative plate is cd oh 2 while discharging the positive plate converts into ni oh 3 and the negative plate is converted into pure cd.

The chemical reaction in the nickle cadmium battery or cell is perfectly reversible. So nickel cadmium batteries come in multiple of 1 2 v for eg 2 4v 3 6v 4 8v etc but it maintains constant voltage throughout their service life and about 0 8 1 v when discharged.