A physics presentation on battery application. Rechargeable batteries

14.04.2020

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Battery device.

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What is a battery?

The 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 ability to accumulate charge and the ability to recharge distinguish batteries into a separate class of devices that are widely used both in production and in everyday life.

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Portable devices.

Last years The twentieth century is the years of widespread distribution of such portable devices as players, pagers, cell phones, various laptop computers, etc. As a source for them, not only is it convenient to use batteries, but it is also impossible to use anything else. Despite some differences, all portable batteries electronic devices many common properties are inherent: 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 accumulators

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Batteries.

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Automotive battery.

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 indicators of the latter in comparison with lithium-metal-hydride, it is lead-acid batteries that are used in cars because of their ease of use, relative cheapness and simply the traditions of the automotive industry.

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Car batteries.

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Electric car.

For quite some time now humanity has been trying to build electric car operating not on liquid fuel, but on electric current. The main advantage of an electric car over a conventional car is its environmental friendliness. The power source must be large battery packs, and because of the size of the batteries, electric cars have not yet become a serious competitor to gasoline or diesel vehicles.

The use of batteries Physics Grade 8 Teacher: Mayorova Natalya Sergeevna Student: Bagrova Lina

Devices capable of storing electricity and serving as its temporary source have long been included in our everyday life. The use of rechargeable batteries depends on the basic parameters of the instrument such as capacity, durability and size.

So, a battery is a chemical energy storage device, thanks to its certain reactions, it is able to accumulate energy in itself and give it back as needed as a result of chemical reactions. All batteries can be conditionally divided according to their purpose into several main groups: household (rechargeable batteries) for cordless phones for flashlights for automobiles for UPS

Rechargeable batteries. The main area of their use is power supply of small household appliances. Rechargeable batteries are used for a wide variety of devices - radio mice, keyboards, cameras, simple flashlights, clocks, and other small electronics.

Accumulators for radiotelephones. It can be a monolithic rechargeable battery or separate cells. Such devices are small in size and light in weight. Cordless phone batteries are often convenient off-the-shelf assemblies of conventional Ni-MH rechargeable batteries.

Flashlight batteries. These batteries differ in physical size and capacity. They are mostly lithium polymer, which makes them very lightweight. They have their own unique standard sizes: 10440 18650 26650

Car batteries. These are large serviceable lead acid batteries with liquid electrolyte. They are able to quickly deliver a huge current, but it is necessary to monitor the electrolyte level (top up as needed). It is impossible to store a lead-acid battery discharged, as it will fail in about six months. behind their charge and

Batteries for UPS. Batteries for computer UPSs are designed to provide short-term power to equipment in the event of a temporary power outage. They are also lead acid, but unlike automobiles they are maintenance-free, and the electrolyte in them is thickened in the form of a gel, which prevents leakage.

Otherwise, these batteries are similar to car batteries, they can quickly give high current and require periodic recharging. For a gas boiler and other critical equipment, they differ in a larger capacity compared to models used when operating computer equipment. After all, they are designed to maintain the functioning of heating devices throughout the day or more.

Conclusion. In order for the battery to hold a charge well and last long enough, it must be from a reliable trusted manufacturer and, of course, original, and not a cheap fake. It is also important in what conditions and for how long the batteries are stored. Therefore, it is best to purchase batteries in specialized stores that pay Special attention their quality.

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The presentation on "Battery Applications" can be downloaded absolutely free of charge on our website. Project subject: Physics. Colorful slides and illustrations will help you engage your classmates or audience. To view the content, use the player, or if you want to download the report - click on the corresponding text under the player. The presentation contains 8 slide (s).

Presentation slides

https://cloud.prezentacii.org/15/04/40675/images/thumbs/screen3.jpg "alt =" (! LANG: A battery. is a source of electrical current that relies on chemical reactions. a galvanic cell battery can be charged and discharged a large number of times." title="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 ability to accumulate charge and the ability to recharge make batteries a class of their own.">!}

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Battery

It 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 ability to accumulate charge and the ability to recharge distinguish batteries into a separate class of devices that are widely used both in production and in everyday life.

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The last years of the twentieth century are the years of widespread distribution of such portable devices as players, pagers, cell phones, various laptop computers, etc. As a source for them, it is not only convenient to use batteries, 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 (a person using this device should be easy and comfortable 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.

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If earlier the computer was a tool for scientists, now it has spread both in everyday life and in business. In the latter case, in the event of a sudden power outage, important data can be lost, resulting in serious losses. If this happens with a large server, then the consequences can even be catastrophic. To prevent this from happening, use an uninterruptible power supply (UPS), essential element which is the battery. 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 provide enough voltage at its outputs for normal operation of the computer. It sometimes requires an output power of 500 W or more.

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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 indicators of the latter in comparison with lithium-metal-hydride, lead-acid batteries are used in cars because of their ease of use, relative cheapness and simply the traditions of the automotive industry.

Try to explain the slide in your own words, add additional Interesting Facts, you don't just need to read the information from the slides, the audience can read it themselves.

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Choose the right outfit, because The speaker's clothing also plays a big role in the perception of his speech.

Try to speak confidently, fluently, and coherently.

Try to enjoy the performance so you can be more relaxed and less anxious.

An accumulator is a device for storing energy for the purpose of its subsequent use, an energy carrier. The rechargeable battery is an alternative source of energy, designed to maintain direct current in the network for a certain time, so the battery capacity is measured in A. hours.

In everyday life, the battery is found in cell phones, under the hood of cars, but batteries are used much more widely. In electronics, these are energy sources for uninterruptible power supplies, in security systems, the battery is used as an alternative to the network.

The battery is widely used in transport, railway carriages, trolleybuses, cars - hybrids, electric cars, trolleybuses and even huge "Belaz" - use special batteries for movement. And these are not the usual rechargeable batteries that are in our cars and require additional charging service and control of the electrolyte level and its density. Batteries used in transport are traction batteries designed specifically for work power units and engines. These rechargeable batteries have a long service life. Traction batteries are not afraid of constant loads and charging frequency. The gel electrolyte in such batteries prevents gas evolution, which preserves the life of the plates. In addition, rechargeable batteries of this class are protected from boiling and operate in a charge-discharge mode.

Traction batteries are used to equip warehouse equipment: stackers, forklifts, electric cars and other machines, in conditions where use is impossible gasoline engines... It should be noted that the service life of an electric car is much higher than that of its diesel counterparts. For warehouse equipment, several types of batteries are used: lead-acid batteries, alkaline batteries. However, it is customary to divide batteries into two types - these are low-maintenance and gel batteries.

Low-maintenance batteries are similar in their parameters to classic ones, approximately the same capacity and charging time. These batteries need care and careful observance of the operating rules, the gel electrolyte is devoid of such drawbacks, but the charging time of the gel battery is longer, and the capacity is slightly less. The main indicator of the battery is its service life, for gel batteries it can be up to 8 years. It is difficult to determine the leader by popularity, gel batteries are considered more reliable, conventional batteries are more flexible in use, gain charge faster and have more capacity

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