A battery is a device containing single
or multiple cells that convert chemical energy into electrical energy.
An aircraft has a main battery and auxiliary power unit (APU) battery.
The main battery activates the aircraft even before the aircraft engine
has started. Main batteries are also used in refueling the plane. The
main battery provides backup power to the aircraft in case of emergency
power failure. Aircraft batteries
help to power the electrical system in an aircraft. When the APU or
engine starts, they drive the aircraft generator which power the
aircraft’s electrical system and also recharges the aircraft batteries.
APU also acts as redundancies in case of emergency power failure.
Lithium ion batteries are used in main and APU batteries. These
batteries are made of eight cells that produce ~32-V DC. Lithium ion
batteries contain redundancies that help the aircraft to fly even in
case of battery fault.
Rising demand for lithium ion based
battery compared to nickel cadmium batteries are increasing the market
size of the global aircraft battery market. For instance, aircraft
manufacturer Boeing has selected 787 Lithium ion batteries for both main
and APU batteries. This is expected to increase the demand for Lithium
ion batteries that further drives the aircraft battery market. Nickel
cadmium batteries are larger and heavier and less efficient than Lithium
ion batteries.
Rising demand for military aircraft
batteries are also driving the size of the aircraft battery market. With
rise in demand for highly sophisticated aircrafts for defense forces,
there is a need for advanced, light weight batteries for aircrafts. This
is subsequently driving the demand for light weight aircraft batteries
and increasing the market size of the global aircraft battery market.
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In terms of type, the global aircraft
battery market has been segmented into Lithium based battery, Nickel
based battery, and Lead acid battery. Lithium based batteries are also
known as secondary batteries and can be recharged. Lithium battery cells
consist of a graphite anode and a cathode that can accept and release
lithium ion repeatedly for battery recharging.
Nickel based batteries are of two types:
Nickel Cadmium based battery and Nickel Metal Hydride. Nickel Cadmium
batteries consists of cadmium hydroxide anode and nickel hydroxide
cathode. Nickel Cadmium batteries are used in the main battery of the
aircraft and other applications. Lead acid battery consists of lead
oxide anode and element lead cathode. By application, the aircraft
battery market is fragmented into engine operation, hydraulic operation,
navigation, and lighting among others.
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