BATTERIES AND FUEL CELLS

1. Government Engineering College ,Valsad
Sub :- Elements of electrical Engineering.
Branch : Mechanical Div:- B
Sr no Name
1 Patel Tejashbhai Rameshbhai
2 Rohit Mayank Navinbhai
3 Pathak Akashkumar
4 PATEL SANJAY DHIRUBHAI
5 PATEL NIRAVBHAI ARVINDBHAI
6 PATEL RAKESHKUMAR UTTAMBHAI

3.  As the world increasingly comes to reply on electrical and
electronics systems for its daily functions’ we are even dependent
on batteries . As electrical and electronics systems becomes
smaller and more efficient , batteries provide the key to portability.
It is only due to reachargeable batteries that travelers can now
work at their laptop computer throughout a transcontinental flight
and then reacharge their batteries overnight using only a few
rupes worth of electricity.At home reachrgeable appliances kept
on their chargers are always fully charged and ready for use.

4. TYPES OF CELLS
 Primary Cell
 Secondary Cell

5. PRIMARY CELL
 An electric cell in which chemical action is not
reversiable is called “primary cell”.Primary cell has an
inherent electrical energy in the form of chemical
energy.
 The Primary cell can produce only a limited amount of
energy.Mostly the non-electrolytes are used for the
primary cell.
 Various example of primary cells are: Zinc-Carbon dry
cell, Zinc-chloride cell,alkaline cell,mercury cell.

6. SECONDARY CELL
 An electric cell, in which chemical action is reversible
is called secondary cell. In this type of cell,no
electrode is consumed, during discharging,however,
the chemical composition of the plate is charged.
 These are used to produce large amount of energy.
 Various types of secondary cells are : Lead-Acid cell,
Nickel-cadmium alkaline cell etc.

7. BATTERY
 A series parallel or series-parallel group of cells is called a battery.
 Generally , a cell can deliver a small current at low voltages.
 Usually, a number of cells connected in series palaced in a single
container is called a battery.
 The following storage batteries are in comman use :-
a) Lead - acid battery
b) Nickel – iron battery
c) Nickel – cadmium battery.

8. Lead Acid Battery
 lead acid battery may be of different types depending on their
use but their construction is almost same .
 Following are the important materials used in a lead acid battery :
1. Positive plate or Anode :
2. Negative Plates Or Cathode :
3. Electrolyte
4. Container
5. separators

9. 6.Bottom blocks
7.Plate connectors
8.Vent plug
9.Partition wall
10.Cell connectors

10. Fuel cells
Fuel cells differ from storage batteries in that their electrode materials
are not changed in chemical composition. Therefor , they do not
need reacharging .
i. They have no moving part except certain control components.
ii. They operate at room temperature.
iii. They produces no obnoxious fumes.
iv. They use fuels that are not difficult to procure.
v. They need little maintenance.

11. Thank You……