1. Individual Presentation 9 about Battery
(Sukirno IK-2A)
Assalamualaikum , good morning my friend . Now I will tell you about Battery. Ok
please listen to me.
The battery is a device that stores electrical - chemical energy and release energy in the form
of electricity . A battery usually consists of three major components, namely :
1. carbon rod as the anode ( positive pole of the battery )
2. zinc ( Zn ) as the cathode ( negative pole of the battery )
3. paste as the electrolyte ( conductor )
Batteries are usually sold ( disposable / single-use ) has a power supply voltage of 1.5 volts .
No battery or box -shaped tube . There was also called rechargeable battery , which is
rechargeable batteries , such as those commonly found on mobile phones . Disposable batteries
are also called primary battery , while the rechargeable battery is called the secondary battery.
Both primary batteries and secondary batteries , both of which are converting chemical energy
into electrical energy . The primary battery can only be used once , as it uses a chemical reaction
is not reversible (irreversible reaction) . While the secondary battery can be recharged because
the chemical reaction is reversible ( reversible reaction) . Battery may refer to:
Artillery battery, an organized group of artillery pieces; also gun battery with similar
groupings on warships
Battery (crime), criminal contact with another in a manner likely to cause bodily harm
o Battery (tort), intentional harmful or offensive contact with a person under civil
law
Battery (electricity), electrochemical cells to transform chemical energy into electricity.
o Automotive battery
o See List of battery types for links to electrical batteries
o Battery room, a facility used to house batteries for large-scale backup power
systems
o Battery, 18th and 19th century term for a number of capacitors or Leyden jars
connected in parallel
2. Battery position, a stage of operation of a firearm action or for a device which is ready
to operate.
o Out-of-battery, the discharge of a weapon before the action has returned to the
normal firing position.
Batteries have many uses. They can power hearing aids, cell phones, compact disk players,
smoke alarms, computers and even cars. The ability to have electricity without being "plugged
in" is an incredibly useful idea that has countless applications. A battery, or cell, is composed
of a cathode, an anode and the electrolyte. A chemical reaction takes place within the cell,
moving electrons from one place to another and producing an electric current. Half of the cell
contains electrolyte and an anode. The other half contains electrolyte and a cathode. Electrons
gather at the negative end of a battery (the anode). When a wire is connected from the positive
end (the cathode) to the negative end, the electrons move through the cell from the anode to
the cathode.
Anode
The anode is the part of the battery that gives up electrons. While discharging energy, the
anode is the negative electrode. When charging a cell, the anode becomes the positive
electrode. In alkaline batteries, the anode is usually made up of zinc powder. To limit corrosion,
zinc oxide is usually added to the anode.
Cathode
The cathode is the part of the battery that absorbs electrons. While discharging energy, the
cathode is the positive electrode. When charging a cell, the cathode becomes the negative
electrode. In alkaline batteries, the cathode is usually made up of manganese dioxide. To
improve conductivity, graphite is traditionally used in the cathode.
Electrolyte
Electrolyte is the conductive substance that transmits energy through the cell. The anode and
cathode never touch; they are connected to each other via electrolyte. Electrolytes can come
either in solid or liquid form. Materials usually used for electrolytes are potassium hydroxide,
ammonium chloride or zinc chloride.
