Electric Car Batteries

 

Author: ElAutomobiles.co.uk

 

Electric car batteries are devices used for storing chemical energy into electrical energy. It is generally made up of one or more electrochemical cells, which is composed of two half cells commonly called as electrodes. These two half cells determines the charge of the electrode, the other half is the negative, which has many excess subatomic particles that are negatively charged, called electrons. The other half which has the deficit of electrons is the positive electrode. When these two halves are being connected by an electrical cable or wire, electrons flow from negative to the positive electrode. The term used to describe this flow is electrons electricity. The energy of these electrons can be brought under control and put into work like for example, running a motor. At the time, the electrons come through the positive side; the flow rate gradually drops down, making the voltage of the electricity generated by the battery drop also. Normally, the electric car batteries are considered as “dead” when the number of electrons is the same in both positive and negative side. Thus it is no longer able to generate electric flow.

Electrons are produced by chemical reactions. Variety of chemical reactions has been used in electric car batteries that are commercially available. For instance, the most familiar alkaline batteries and is normally used in television remote controls and flashlights generate electricity by a chemical reaction which involves zinc and manganese oxide. Alkaline batteries are regarded as disposable batteries; they are useless when they are dead. On the other hand, electric car batteries need to be recharge and don’t need frequent replacement. The principle of rechargeable battery is that the negative and positive halves was reversed, restarting the electron flow.

For automobile use, manufacturers have distinguished three kinds of rechargeable electric car batteries and are suitable for vehicle use. These are the lead-acid batteries, lithium ion batteries and the nickel metal hydride batteries.

Lead acid electric car batteries were first formulated and developed in 1859; this was considered as the oldest type of rechargeable electric car batteries that are still in use. Since the 19th century, they have been used in electric cars and in all other type of cars. Lead acid battery normally contains a solution of sulfuric acid. The name is derived from the combination of acid and lead electrodes to generate electricity in the battery. One of the major advantage of this type of battery, they have been consistent through many years and are well understood to be cheap to manufacture. On the contrary, they produce dangerous gases when used and there is a danger of explosion if the battery is overcharged.

Lithium electric car batteries, on the other hand, came to be commercialized in the early 1990s have a property of self-discharge, that is they have a high energy density and have less probability compared to other batteries to lose their charge when not used. They are widely used in electronic devices because it is lightweight and require low maintenance.

Nickel metal hydride had been popular in the late 1980s. Like lithium electric car batteries, they have also high energy density; a great amount of energy can be packed into a comparatively small battery. They are easy to recycle because it doesn’t contain toxic metals.

The heart of every EV (Electric vehicle) are its electric car batteries. It runs everything on the car, including the electric motor, controller, and it needs to be power and last long enough to bring the drivers to their destination with a minimum of recharging. Recently, everything has begun to change, being electric cars has been feasible and they are expecting to run on the assembly lines of the major automobile developers.

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