Friends, today in this article we will know that the structure of nickel iron battery, the working of nickel iron battery, I am going to give information about all these in a very good way. So let’s get started.
Structure of Nickel Iron Battery
It is called Ni-Fe cell in short. The plus (+) plates of this type of battery are made of curved tubes of nickel hydroxide Ni(OH), coated porous steel.
These tubes are filled with nickel hydroxide [Ni(OH)4] as nickel metal flakes which reduce internal resistance and increase conductivity. Nickel metal increases the conductivity of the electrolyte.
The minus plates are made of hollow steel tubes filled with iron powder and iron oxide. Battery plates are attached to cell groups. Each cell group has plates of the same polarity, i.e. the positive (+) or negative group is connected to a churidar common terminal post.
For protection against the presence of positive (+) and negative plates, hard rubber separators are installed between the two plates.
Electrolyte for nickel-iron storage batteries is made by adding 21% potassium hydroxide (KOH) to distilled water and small amounts (1%) of lithium hydroxide (LiOH) mixed with water. LiOH increases the efficiency of the accumulator. Nickel iron battery is also called alkaline battery.
Working of a Nickel Iron Battery
The positive (+) terminal of the battery charger is connected to the positive of the battery and the negative (-) terminal of the charger is connected to the negative (-) terminal of the battery.
During charge, the current in the electrolyte flows from the positive (+) plate to the negative (-) plate.
The flowing current splits the electrolyte into potassium ions (K) and hydroxide ions (OH). Potassium K+ ions are attracted to the negative plate and OH ions to the positive (+) plate. The following chemical reactions take place during charge.
Ni (OH)2 + 20H → Ni (OH) 4 A small amount of nickel hydroxide combines with hydroxide to form nickel hydroxide. When the battery is charged, the positive (+) plate becomes nickel hydroxide [Ni (OH)] and the negative plate iron (Fe).
The relative density of the electrolyte of this type of accumulator is kept from 1.17 to 1.18. Its voltage per cell is 1.2 to 1.4V. The life of its battery or accumulator is about 5 years. Its ampere hour efficiency is 80%.
Discharging of Nickel Iron Alkaline Battery
When the battery is immersed. As shown in the figure, the current in the external circuit of the battery flows from the positive (+) plate to the negative plate and inside the battery from the negative (-) plate to the positive (+) plate.
The current flowing through the electrolyte splits it into potassium ions (K+) and hydroxide ions (OH). Potassium ions move towards K+ (anode) and OH ions towards cathode. The following chemical reactions take place on each plate.
what did you learn today :-
Now you must have known that Discharging of Nickel Iron Alkaline Battery, Structure of Nickel-Iron Battery, Working of a Nickel Iron Battery. You must have got the answer of all these questions very well.
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