3.0 TDI V6 Tiptronic S AWD 5dr
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£10,125
- Year/Month: 2010/0
- Stock ID: T118355
- Transmission: Automatic
- CC: 3000
- Mileage: 137062
- Fuel Type: Petrol
- 75 Views
Porsche Cayenne Awd For Sale From UK At Reasonable Price
Do You Know That What Is A Battery? When You Use It In The Porsche Cayenne Awd For Sale
A battery is a device for the accumulation of electrical energy through a chemical process and the consequent controlled release in the form of direct current to assure power to Porsche cayenne awd for sale. Please note that all types of batteries contain a positive and a negative electrode immersed in an electrolyte, with the various components assembled inside a block.
The Operation
Please note that batteries can be based on lead-acid that have positive and negative electrodes made of lead compounds, immersed in an electrolyte consisting of sulfuric acid diluted in water. Lead-acid batteries are secondary such as they can be recharged once the charge is exhausted. Primary batteries, on the other hand, can be discharged only once, after which they should be replaced; one can have this kind, for example, some types of appliances. In the perspective to know about battery operation, a buyer who decides to pay the Porsche cayenne AWD price should know, the positive electrode is made of lead dioxide, while the negative is made of porous lead. When an electric user (for example lights or a starter) is connected to the battery, a current develops which passes via the electrolyte and the external user.
The Process
This process causes the battery to discharge, which involves a progressive change in the chemical composition of both electrodes, which are converted into lead sulfate. It is possible to recharge a battery by passing it through an electric current coming from an external source, for example, an alternator, a dynamo or a recharging device. This process triggers a reverse chemical reaction that leads back to the original materials, namely lead dioxide and porous lead. As the battery charges, the electricity begins to break down (hydrolyze) the water contained in the electrolyte into its two constituent elements, hydrogen and oxygen, which are released as gas. For this reason, the batteries release gas during the charging phase. Since the positive and negative electrodes are made of ductile materials, they need dedicated support, supplied by a grid made of a lead alloy; pure lead would be too soft.
The Blend
In addition to providing support for the electrodes that are the active material, the grid serves to conduct electricity up to the external user. The electrodes are initially made of a mixture of lead oxide and lead sulfate. During battery charging, these materials become lead dioxide in the positive plate and porous lead in the negative one. The negative electrode also contains small amounts of additives to provide good discharge performance at low temperatures, improving starting. The combination of the grid and the electrodes is usually referred to as a plate. While, the electrolyte consists of sulfuric acid diluted in water, that material acts as a conductor and allows the movement of electric ions between the positive and negative plates when the battery is discharged or charged. Furthermore, acid plays a role in the discharge process as the ions react chemically with the electrodes to produce lead sulfate.
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