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Quiz. Learn what batteries are, how they work and how to make your own batteries with this Bitesize Scotland Science article for Second Level Curriculum for Excellence.
Batteries - BBC Bitesize. Key facts. Batteries are used to store chemical energy. Placing a battery in a circuit allows this chemical energy to generate electricity which can power device...
Introduction. Batteries give electric power to flashlights, radios, cell phones, handheld games, and many other types of equipment. A battery is a sort of container that stores energy until it is needed. Chemicals inside the battery store the energy.
An automotive battery or car battery is a rechargeable battery that is used to start a motor vehicle. Its main purpose is to provide an electric current to the electric-powered starting motor, which in turn starts the chemically-powered internal combustion engine that actually propels the vehicle.
- History
- Battery Sizes
- Types
- Lifespan
- Hazards
- Future
- Comparison
The very first batteries were invented in the middle east around 1000 B.C. The first battery was invented in 1800 by Alessandro Volta. Nowadays, his battery is called the voltaic pile. Later batteries were bottleswith a fluid and some metal rods in them. People had to be careful not to turn these batteries upside-down so the fluid would spill. In m...
Batteries come in many different shapes, sizes and voltages. AA, AAA, C, and D cells, including alkaline batteries, are of standard sizes and shapes, and have about 1.5 volts. The voltage of a cell depends on the chemicals used. The electric chargeit can supply depends on how large the cell is, as well as what chemicals. The charge a battery delive...
Primary and secondary batteries
Batteries are classified into primary and secondary forms: 1. Primarybatteries are designed to be used until exhausted of energy then discarded. Their chemical reactions are generally not reversible, so they cannot be recharged. When the supply of reactants in the battery is exhausted, the battery stops producing current and is useless. 2. Secondary batteries can be recharged; that is, they can have their chemical reactions reversed by applying electric currentto the cell. This regenerates th...
Composition
Many types of electrochemical cells have been produced, with varying chemical processes and designs, including galvanic cells, electrolytic cells, fuel cells, flow cells and voltaic piles. A wet cell battery has a liquid electrolyte. Other names are flooded cell, since the liquid covers all internal parts or vented cell, since gases produced during operation can escape to the air. Wet cells were a precursor to dry cells and are commonly used as a learning tool for electrochemistry. They can b...
Consumer and industrial grades
Batteries of all types are manufactured in consumer and industrial grades. Costlier industrial-grade batteries may use chemistries that provide higher power-to-size ratio, have lower self-discharge and hence longer life when not in use, more resistance to leakage and, for example, ability to handle the high temperature and humidity associated with medical autoclave sterilization.
Battery life (and its synonym battery lifetime) has two meanings for rechargeable batteries but only one for non-chargeables. For rechargeables, it can mean either the length of time a device can run on a fully charged battery or the number of charge/discharge cycles possible before the cells fail to operate satisfactorily. For a non-rechargeable t...
A battery explosion is generally caused by misuse or malfunction, such as attempting to recharge a primary (non-rechargeable) battery, or a short circuit. When a battery is recharged at an excessive rate, an explosive gas mixture of hydrogen and oxygen may be produced faster than it can escape from within the battery (e.g. through a built-in vent),...
Between 2010 and 2018, annual battery demand grew by 30%, reaching a total of 180 GWhin 2018. Conservatively, the growth rate is expected to be maintained at an estimated 25%, culminating in demand reaching 2600 GWh in 2030. In addition, cost reductions are expected to further increase the demand to as much as 3562 GWh. Important reasons for this h...
Many important cell properties, such as voltage, energy density, flammability, available cell constructions, operating temperature range and shelf life, are dictated by battery chemistry.
By the end of this lesson, you will understand what batteries are and how they help power everyday items like toys and flashlights. You will learn how batteries work by creating electricity through chemical reactions and how electrons flow to make devices work. You will also discover different types of batteries, such as AA, AAA, and car ...
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Find out some science facts for kids about batteries. Batteries are probably used by kids everyday from the battery in their parent's car to the battery in their iPod. Batteries provide us with a way to store and transport energy in a safe way.
