slide 2
Battery device.
slide 3
What is a battery?
A battery is a source of electric current, the action of which is based on chemical reactions. Unlike a conventional galvanic cell, a battery can be charged and discharged a large number of times. The possibility of charge accumulation and the possibility of recharging distinguish batteries into a separate class of devices widely used both in production and in everyday life.
slide 4
Portable devices.
The last years of the twentieth century are the years of the widespread use of such portable devices as players, pagers, cell phones, various portable computers, etc. It is not only convenient to use batteries as a source for them, but it is also impossible to use anything else. Despite some differences, all batteries for portable electronic devices have many common properties: high capacity (the battery should work for a long time without recharging), small size and weight (it should be easy and convenient for a person using this device to carry it), high reliability ( batteries should not be susceptible to various shocks, shocks, temperature changes, etc.). All these requirements are best met by lithium-metal - hydride batteries
slide 5
Batteries.
slide 6
Accumulator in the automotive industry.
In addition to the widespread use of batteries in the devices listed below, the battery has found its main application in the automotive industry. In cars, it is used for the initial start of the engine. Despite the generally lower performance of the latter compared to lithium-metal hydride, it is lead-acid batteries that are used in cars because of their ease of operation, relative cheapness, and simply the traditions of the automotive industry.
Slide 7
Car batteries.
Slide 8
Electric car.
For quite a long time, humanity has been trying to build an electric car - a car that does not run on liquid fuel, but on electric current. The main advantage of an electric car compared to a conventional car is its environmental friendliness. The source of current should be large batteries. It is because of the size of the batteries that electric vehicles have not yet become serious competitors to cars running on gasoline or diesel fuel.
A battery is a source of electric current, the action of which is based on chemical reactions. Unlike a conventional galvanic cell, a battery can be charged and discharged a large number of times. The possibility of charge accumulation and the possibility of recharging distinguish batteries into a separate class of devices widely used both in production and in everyday life.
The last years of the twentieth century are the years of the widespread use of such portable devices as players, pagers, cell phones, various portable computers, etc. Not only is it convenient to use batteries as a source for them, but it is also impossible to use anything else. Despite some differences, all batteries for portable electronic devices have many common properties: high capacity (the battery should work for a long time without recharging), small size and weight (it should be easy and convenient for a person using this device to carry it), high reliability ( batteries should not be susceptible to various shocks, shocks, temperature changes, etc.). All these requirements are best met by lithium-metal hydride batteries. The last years of the twentieth century are the years of the widespread use of such portable devices as players, pagers, cell phones, various portable computers, etc. Not only is it convenient to use batteries as a source for them, but it is also impossible to use anything else. Despite some differences, all batteries for portable electronic devices have many common properties: high capacity (the battery should work for a long time without recharging), small size and weight (it should be easy and convenient for a person using this device to carry it), high reliability ( batteries should not be susceptible to various shocks, shocks, temperature changes, etc.). All these requirements are best met by lithium-metal hydride batteries.
If earlier the computer was a tool for scientists, then at present it has become widespread both in everyday life and in business. In the latter case, during a sudden power outage, important data may be lost, which will lead to serious losses. If this happens to a large server, then the consequences can even be catastrophic. To prevent this from happening, use an uninterruptible power supply (UPS), the most important element of which is the battery. The requirements for it are somewhat different than for a battery for portable devices. The battery should work for a long time without recharging and should give enough voltage at its outputs for normal operation of the computer. It sometimes requires an output power of 500 watts or more. If earlier the computer was a tool for scientists, then at present it has become widespread both in everyday life and in business. In the latter case, during a sudden power outage, important data may be lost, which will lead to serious losses. If this happens to a large server, then the consequences can even be catastrophic. To prevent this from happening, use an uninterruptible power supply (UPS), the most important element of which is the battery. The requirements for it are somewhat different than for a battery for portable devices. The battery should work for a long time without recharging and should give enough voltage at its outputs for normal operation of the computer. It sometimes requires an output power of 500 watts or more.
In addition to the wide distribution of batteries in the above devices, the battery has found its main application in the automotive industry. In cars, it is used for the initial start of the engine. Despite the generally lower performance of the latter compared to lithium-metal hydride, it is lead-acid batteries that are used in cars because of their ease of operation, relative cheapness, and simply the traditions of the automotive industry. In addition to the wide distribution of batteries in the above devices, the battery has found its main application in the automotive industry. In cars, it is used for the initial start of the engine. Despite the generally lower performance of the latter compared to lithium-metal hydride, it is lead-acid batteries that are used in cars because of their ease of operation, relative cheapness, and simply the traditions of the automotive industry.
For quite a long time, humanity has been trying to build an electric car - a car that does not run on liquid fuel, but on electric current. The main advantage of an electric car compared to a conventional car is its environmental friendliness. The source of current should be large batteries. It is because of the size of the batteries that electric vehicles have not yet become serious competitors to cars running on gasoline or diesel fuel. For quite a long time, humanity has been trying to build an electric car - a car that does not run on liquid fuel, but on electric current. The main advantage of an electric car compared to a conventional car is its environmental friendliness. The source of current should be large batteries. It is because of the size of the batteries that electric vehicles have not yet become serious competitors to cars running on gasoline or diesel fuel.
The work can be used for lessons and reports on the subject "Physics"
Our ready-made physics presentations make complex lesson topics simple, interesting and easy to digest. Most of the experiments studied in physics lessons cannot be carried out under normal school conditions; such experiments can be shown using physics presentations. In this section of the site you can download ready-made physics presentations for grades 7,8,9,10,11, as well as presentation-lectures and presentation-seminars in physics for students.
slide 1
"Application of Batteries".slide 2
slide 3
A battery is a source of electric current, the action of which is based on chemical reactions. Unlike a conventional galvanic cell, a battery can be charged and discharged a large number of times. The possibility of charge accumulation and the possibility of recharging distinguish batteries into a separate class of devices widely used both in production and in everyday life.
slide 4
The last years of the twentieth century are the years of the widespread use of such portable devices as players, pagers, cell phones, various portable computers, etc. Not only is it convenient to use batteries as a source for them, but it is also impossible to use anything else. Despite some differences, all batteries for portable electronic devices have many common properties: high capacity (the battery should work for a long time without recharging), small size and weight (it should be easy and convenient for a person using this device to carry it), high reliability ( batteries should not be susceptible to various shocks, shocks, temperature changes, etc.). All these requirements are best met by lithium-metal hydride batteries.
slide 5
slide 6
If earlier the computer was a tool for scientists, then at present it has become widespread both in everyday life and in business. In the latter case, during a sudden power outage, important data may be lost, which will lead to serious losses. If this happens to a large server, then the consequences can even be catastrophic. To prevent this from happening, use an uninterruptible power supply (UPS), the most important element of which is the battery. The requirements for it are somewhat different than for a battery for portable devices. The battery should work for a long time without recharging and should give enough voltage at its outputs for normal operation of the computer. It sometimes requires an output power of 500 watts or more.
Slide 7
In addition to the wide distribution of batteries in the above devices, the battery has found its main application in the automotive industry. In cars, it is used for the initial start of the engine. Despite the generally lower performance of the latter compared to lithium-metal hydride, it is lead-acid batteries that are used in cars because of their ease of operation, relative cheapness, and simply the traditions of the automotive industry.
Slide 8
For quite a long time, humanity has been trying to build an electric car - a car that does not run on liquid fuel, but on electric current. The main advantage of an electric car compared to a conventional car is its environmental friendliness. The source of current should be large batteries. It is because of the size of the batteries that electric vehicles have not yet become serious competitors to cars running on gasoline or diesel fuel.
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Slides captions:
Pupils 8 "B" MOU secondary school No. 38 Droficheva Anastasia Accumulator - a device for the accumulation of electrical energy for the purpose of its further use.
The Italian scientist Luigi Galvani (1737–1798) discovered the possibility of obtaining an electric current other than electrification by friction.
Once, when he was doing research on frogs, he noticed that when a steel scalpel was touched to a nerve, the leg of a dead frog began to move. Subsequently, Galvani set up several experiments to discover the cause of the electric current and research
The principle of operation of batteries is based on the phenomenon of electrolysis. Electrolysis consists in changing the chemical composition of a solution when an electric current passes through it, due to the loss or gain of electrons by ions. An important property of electrolysis is its reversibility. Electrolysis
Similarly to a galvanic cell, a battery can also be made. To do this, use two lead plates immersed in a solution containing one part sulfuric acid and five parts water. To charge the battery, it is connected in series with an ammeter and a current is passed through the circuit. Battery manufacturing
The charging process consists in the fact that two identical battery plates become different due to electrolysis; one of them, negative, still remains lead, and the material of the other (positive) turns into lead peroxide. When an electric current passes through the battery, hydrogen bubbles are released at the cathode, and oxygen is released at the anode. Due to the fact that a certain amount of oxygen chemically combines with the material of the anode plate, it gradually acquires a dark brown color due to the formation of lead peroxide on its surface. Charging process
When formed, the charging current drops, which indicates an increase in the internal resistance of the battery. If the battery is fully charged, a voltmeter connected to it will show a voltage slightly over 2 volts. Charging current
The following chemical reactions take place in the battery (during charging, the reactions go from left to right, while discharging, they go in the opposite direction): Charging>
Positive plates in the production of industrial batteries are coated with a thick layer of lead peroxide. Negative plates are made of porous spongy lead. A conventional battery, consisting of three battery cells connected in series, has a voltage of just over 6 volts. The battery efficiency is approximately 75%. A number is put on the battery that shows the amount of electricity stored in the battery, expressed in ampere - hours Industrial batteries
For example, 120 amp-hours means that when fully discharged, the battery can deliver 1 amp for 120 hours, or 2 amps for 60 hours. The battery must be kept charged at all times. Even if the battery is not in use, it should be recharged regularly. Battery clamps must be kept clean and protected from corrosion. Batteries should not be allowed to freeze. Ampere - hours
Basically, batteries are used to start the engines of cars and other machines. It is also possible to use it as temporary sources of electricity in places remote from settlements. It must be remembered that the batteries should be maintained in a charged state, using, for example, solar energy. In the future, batteries are expected to be used to power environmentally friendly electric motors. Application of ampere - hours
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"Application of Batteries".
A battery is a source of electric current, the action of which is based on chemical reactions. Unlike a conventional galvanic cell, a battery can be charged and discharged a large number of times. The possibility of charge accumulation and the possibility of recharging distinguish batteries into a separate class of devices widely used both in production and in everyday life.
The last years of the twentieth century are the years of the widespread use of such portable devices as players, pagers, cell phones, various portable computers, etc. Not only is it convenient to use batteries as a source for them, but it is also impossible to use anything else. Despite some differences, all batteries for portable electronic devices have many common properties: high capacity (the battery should work for a long time without recharging), small size and weight (it should be easy and convenient for a person using this device to carry it), high reliability ( batteries should not be susceptible to various shocks, shocks, temperature changes, etc.). All these requirements are best met by lithium-metal hydride batteries. The last years of the twentieth century are the years of widespread use of such portable devices as players, pagers , cell phones, various portable computers, etc. It is not only convenient to use batteries as a source for them, but it is also impossible to use anything else. Despite some differences, all batteries for portable electronic devices have many common properties: high capacity (the battery should work for a long time without recharging), small size and weight (it should be easy and convenient for a person using this device to carry it), high reliability ( batteries should not be susceptible to various shocks, shocks, temperature changes, etc.). All these requirements are best met by lithium-metal hydride batteries.
Batteries.
If earlier the computer was a tool for scientists, then at present it has become widespread both in everyday life and in business. In the latter case, during a sudden power outage, important data may be lost, which will lead to serious losses. If this happens to a large server, then the consequences can even be catastrophic. To prevent this from happening, use an uninterruptible power supply (UPS), the most important element of which is the battery. The requirements for it are somewhat different than for a battery for portable devices. The battery should work for a long time without recharging and should give enough voltage at its outputs for normal operation of the computer. It sometimes requires an output power of 500 watts or more. If the computer used to be a tool for scientists, it has now become widespread in everyday life and in business. In the latter case, during a sudden power outage, important data may be lost, which will lead to serious losses. If this happens to a large server, then the consequences can even be catastrophic. To prevent this from happening, use an uninterruptible power supply (UPS), the most important element of which is the battery. The requirements for it are somewhat different than for a battery for portable devices. The battery should work for a long time without recharging and should give enough voltage at its outputs for normal operation of the computer. It sometimes requires an output power of 500 watts or more.
In addition to the widespread use of batteries in the above devices, the battery has found its main application in the automotive industry. In cars, it is used for the initial start of the engine. Despite the generally lower performance of the latter compared to lithium-metal hydride, it is lead-acid batteries that are used in cars because of their ease of operation, relative cheapness, and simply the traditions of the automotive industry. In addition to the widespread use of batteries in the above devices, the battery has found its main application in the automotive industry. In cars, it is used for the initial start of the engine. Despite the generally lower performance of the latter compared to lithium-metal hydride, it is lead-acid batteries that are used in cars because of their ease of operation, relative cheapness, and simply the traditions of the automotive industry.
For quite a long time, humanity has been trying to build an electric car - a car that does not run on liquid fuel, but on electric current. The main advantage of an electric car compared to a conventional car is its environmental friendliness. The source of current should be large batteries. It is precisely because of the size of the batteries that electric vehicles have not yet become serious competitors to cars running on gasoline or diesel fuel. For quite a long time, humanity has been trying to build an electric car - a car that does not run on liquid fuel, but on electric current. The main advantage of an electric car compared to a conventional car is its environmental friendliness. The source of current should be large batteries. It is precisely because of the size of the batteries that electric vehicles have not yet become serious competitors to cars running on gasoline or diesel fuel.
