Battery___Make_Electronic_Objects_Mobile by MonikaKam

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									Title:
Battery – Make Electronic Objects Mo
bile

Word Count:
484

Summary:
A battery is a device that stores c
hemical energy and is available in
an electric form. The batteries con
tain a series of electrochemical de
vices that contains one or more fue
l cells, galvanic cells and flow ce
lls. This electric battery is an in
terconnected array of one or more t
han one voltaic cells that are used
 in the cars, in torches, laptops,
digital watches and almost every el
ectronic goods that we use in our d
aily life.

Series of battery cells

The cells in the b...


Keywords:
Battery
Article Body:
A battery is a device that stores c
hemical energy and is available in
an electric form. The batteries con
tain a series of electrochemical de
vices that contains one or more fue
l cells, galvanic cells and flow ce
lls. This electric battery is an in
terconnected array of one or more t
han one voltaic cells that are used
 in the cars, in torches, laptops,
digital watches and almost every el
ectronic goods that we use in our d
aily life.

Series of battery cells

The cells in the battery are connec
ted either in parallel, in series o
r in both combinations. While the p
arallel combination of cells has th
e same voltage power as a single ce
ll, it can supply a higher current
than a single cell can. The paralle
l arrangements, however, suffer fro
m a recurrent problem. If one cell
discharges faster than its neighbor
 cell, then current will flow from
the full cell to the empty cell, th
ereby wasting a lot of power and ca
using excess of overheating. Anothe
r marked disadvantage is if one of
the cells gets short-circuited due
to an internal fault, then its neig
hbor will be forced to discharge it
s maximum current into the faulty c
ell, thereby leading to sudden expl
osion.

The capacity of   a battery to store
charge is often   expressed in ampere
 hours [1 A.h =   3600 coulombs]. If
the battery can   provide one ampere
[1A] of current   for completely one
hour then it is   said to have a real
-world capacity   of 1 A.h.

Types of batteries

There are some common battery types
 that are used in everyday life. Th
e different types include rechargea
ble and disposable batteries, homem
ade cells, and traction batteries a
nd flow batteries.

Disposable batteries

Also called primary cells are inten
ded to use only once until the chem
ical changed that induce electrical
 current supply are complete and th
e battery is then discarded. They a
re commonly used in smaller and por
table objects with low current drai
n. They are usually contained in li
ght drain and heavy drain appliance
s, digital cameras, watches, comput
er clocks, and hearing aids.

Rechargeable batteries

These are secondary cells that can
be recharged after they have been d
rained. This is done by convenientl
y applying externally supplied elec
trical current that reverses the ch
emical reactions that usually occur
 in use. It is used in appliances l
ike alarm systems, vehicles, vacuum
 tube radio sets, absorbed glass ma
ts etc.

Traction batteries

These batteries are designed to pro
vide power to move vehicles like el
ectric cars and tow motors. A pecul
iar characteristic of traction batt
eries is the electrolytes in the ba
tteries are gelled.

Flow batteries
They are a special class of battery
 that stores additional quantities
of electrolyte outside the main pow
er cell of the battery and are circ
ulated throughout by pumps or throu
gh movement. They have a high capac
ity and are specially used in the m
arine appliances.

So whether it’s your car, PC, lapto
p cell phone or MP3 player, the bat
teries are almost everywhere to mak
e you electrically mobile.

								
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