Batteries can be quite heavy. This disadvantage prevents batteries from being a source of energy in many different appliances and applications where being lightweight is crucial.An aluminum air battery overcomes this issue. It uses air as a cathode, significantly reducing its weight.In an aluminum air battery, aluminum is used as an anode, and air (the oxygen in the air) is used as cathode. This results in the energy density – i.e. energy produced per unit weight of the battery – very high compa

Working Principle of BatteryA battery works on the oxidation and reduction reaction of an electrolyte with metals. When two dissimilar metallic substances, called electrode, are placed in a diluted electrolyte, oxidation and reduction reaction take place in the electrodes respectively depending upon the electron affinity of the metal of the electrodes. As a result of the oxidation reaction, one electrode gets negatively charged called cathode and due to the reduction reaction, another electrode

Which battery is becoming more popular day by day as there is a huge scope of development to turn the battery into high energy density battery for an electric vehicle? The answer would be Nickel Iron Battery or Edison Battery. In a single word, a Ni-Fe battery is a very robust battery. This battery has a very high tolerance for overcharging, over discharging, short-circuiting, etc. This battery can perform equally well even we do not charge the battery for a long period. Due to its heavy weight,

Batteries have become one of the most important and most used equipments these days. Batteries are used where the power supply is not regular, where low voltage is required (i.e. lower than supply voltage); watches, mobiles and many other small types of equipment that require lesser voltage, mainly run on battery. The main advantage of the battery is that they can be charged and used if the capability of supplying power reduces. Cells are the unit of battery, many cells complete a battery. There

Battery CellsBattery is an electrical element where electrical potential is produced due to chemical reaction. Every electrochemical reaction has its limit of producing electric potential difference between two electrodes.Battery cells are those where these electro-chemical reactions take place to produce the limited electric potential difference. For achieving desired electric potential difference across the battery terminals multiple numbers of cells are to be connected in series. Hence it can

During World war II it became essential to have constant voltage, high capacity, long life battery system for using under extreme tropical condition. The technology of zinc mercuric oxide battery had been known for more than 100 years, but it was first practically used by Samuel Ruben during World war II. Because of its constant and stable voltage characteristics, it is particularly advantageous to use in watches, cameras, and other small electronic devices. It was also used in some early model

Magnesium is used as anode materials in primary battery because of its high standard potential. It is a light metal. It is also easily available being a low-cost metal. Magnesium/manganese dioxide (Mg/MnO2) battery has twice the service life i.e. capacity of the zinc/manganese dioxide (Zn/MnO2) battery of same size. It also can retain its capacity, during storage, even at high temperatures. Magnesium battery is very durable and storable since it always has a protective cover which is naturally f

Before going in detail of this subject i.e. charging and discharging of battery , we will first try to understand what is oxidation and reduction. Because, battery are discharged or charged due to oxidation and reduction reactions.For understanding the theory of oxidation and reduction, we can directly go to an example of chemical reaction. Let us consider the reaction between zinc metal and chlorine.In the above reaction zinc (Zn) first gives up two electrons and becomes positive ions.Here, eac

Construction of Leclanche’ BatteryIn commonly available cylindrical Leclanche’ cell available in the market has following constructional features. A cylindrical can made by thin sheet of zinc, serves as anode and it also holds all other active and electrolyte materials of thebattery.Ideally, zinc used in the battery should be 99.99% pure. Although, the zinc used, for making a container of zinc-carbon battery has 0.03 to 0.06 % of cadmium and 0.02 to 0.04 % of lead. Lead gives the zinc better for

Zinc Carbon BatteryZinc carbon battery is being popularly used during last 100 years. Generally there are two types of zinc carbon battery generally available – Leclanche battery and Zinc chloride battery. Both of these are primary battery. This battery was invented by Goerge Lionel Leclanche in 1866. This was the first battery in which low corrosive electrolyte like ammonium chloride was used. Before that only strong mineral acids were used as electrolyte of battery system.In this battery cell,