Gadgets Today and Yesterday Report

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  • Topic: Rechargeable battery, Cadmium, Lithium-ion battery
  • Pages : 6 (1741 words )
  • Download(s) : 234
  • Published : April 28, 2013
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Fariha Ibnath Khan| GaDgEtS tOdAy AnD yEsTeRdAy|

Contents:
History of battery
What is a battery?
Different types of battery
How do gadgets function?
Comparing gadgets of today and yesterday
How are gadgets powered by battery?
Examples of gadgets used to make battery?
Conclusion
Classic video game icons that could be played on phones.

History of Battery
Society's need of energy has resulted technological development. This world is in need of power supply more than ever. Despite the advances from power, batteries allowed storage and decrease of energy that created many suitability’s that it’s now taken for granted. The history and advances of battery dates back in time, and the recent advances are making them unnoticeable; batteries are safer, long lasting and recyclable now. Early History

It has been suggested that batteries were invented over 2,000 years ago. The invention discovered in Baghdad in 1932, might have just been used for jewelry making. Real progress of storing electric current was made again in the late 18thcentury, when Alessandro Volta (after whom volt was named) shelved discs soaked in salt solution between zinc and copper plates to create electric current. This formed the base for the battery technology. Present

The first wet cell batteries (like automobile) and dry cell batteries (like the remote control ones) was invented in the late 19th century. By 1900 the D battery was powered in flashlights. The rechargeable battery is about 150 years old, and today’s' cars batteries use the original lead-acid design. Batteries have been focused on light weight and longer lasting batteries like for iPods and etc. The rechargeable battery has gone through three major changes: Nickel-Cadmium (NiCd): First used in the 1960s, for dry cell rechargeable batteries. But, cadmium is toxic and these batteries are disposed to memory effect. Like, if it is repeatedly charged when it is at 50 percent power, it will forget that it has the other 50 percent, and its lifetime will cut by half. Nickel-Metal Hydride (NiMH): Free from cadmium and lasts longer than Nickel-Cadmium, and also have less memory effect. Lithium Ion (Li Ion): lighter weight, longer lasting and quicker to charge than the others. Free from memory effect and hazards. Newer Lithium-based batteries are improving the key areas of its performance. Single use batteries are also going through changes (like transition to rechargeable or secondary form batteries), the most signified developments was in 1996. “The Mercury-Containing and Rechargeable Battery Management Act,” was made by the removal of mercury from mostly all batteries. This reduced the environmental impact caused by the mercury containing batteries. This made the NiCd batteries recyclable. Possible future

Battery producers continue balancing desires for battery handling environmental responsibility and improve battery performance. Technology and resources shrink, demanding for portable and reusable power is going to grow.

Battery with its components labeled.

What is a battery?
A battery is a container consisting of one or more cells carrying an electric charge which is used as a power source. It can be found in many numbers of shapes, sizes, voltages and capacities. When two materials are wrapped up in a solution, an electrical potential will be there between them. If connected together through a circuit, a current will flow into it. The amount of this voltage is reliant on the materials, giving birth to a whole family or battery type each having their own benefits and warnings in use. For example: lead acid, nickel-cadmium, lithium, silver alkaline. The more the number of cells the higher it’s voltage, and larger the plates the larger it’s capacity. Batteries are made in 12 volt blocks with 6 cells, but are also available in 6 volt, 4 volt and even 2 volt single cell blocks. Batteries can be connected in a series to get whatever voltage required, and in corresponding to...
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