Why Use A Nickel Metal Hydride Rechargeable Battery

A nickel metal hydride rechargeable battery is another form of rechargeable battery that may be utilized in the place of nickel cadmium batteries. It is different from nickel cadmium batteries which utilizes cadmium for its negative electrode, as it uses a hydrogen-absorbing alloy instead. However though, these two kinds of rechargeable batteries both utilize nickel oxyhydroxide for its positive electrode. A nickel metal hydride rechargeable battery has several advantages over its nickel cadmium counterpart and other types of batteries and here are some of them.

First is that a nickel metal hydride rechargeable battery contains a bigger energy density that is estimated at about 50% more than a nickel cadmium rechargeable battery. This implies that this form of battery has the capacity to store a bigger amount of energy even with the similar volume of battery cell.

The second benefit of nickel metal hydride rechargeable battery is that is has a low rate of internal impedance. The internal impedance or resistance pertains to the ability of a battery to carry current. A small internal impedance is a good quality for a battery as it indicates that it lets high currents so that more energy can be transported to a gadget at a faster speed. However, a nickel cadmium rechargeable battery still has a smaller rate of internal impedance than that of a nickel metal hydride rechargeable battery.

One more benefit of a nickel metal hydride rechargeable battery is that it is a very durable battery. This battery can withstand overcharge and also overdischarge conditions. In addition, this battery can also work in various temperature conditions. This makes them a truly multipurpose and convenient batteries.

A big limitation of a nickel metal hydride battery is that it has a considerable discharge rate that causes its short life span. However, there are now low self-discharge nickel metal hydride rechargeable battery that resolves this issue.

Lastly, a nickel metal hydride rechargeable battery is more environmental friendly than other battery types since it does not have the toxic metals like cadmium. This is important when the battery is disposed improperly as it will not be an environmental hazard. In addition, this type of battery is very profitable for recycling which will encourage a lot of people to do so.