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What is a battery

CELL AND BATTERY

                                                   BATTERY


Battery


            Battery is chemical energy convert to electrical energy.

TYPES OF CELL

            Cell is two types-------

            1)Primary cell

            2)Secondary cell

1)PRIMARY CELL

            A cell which convert chemical energy to electrical energy.It is active few hours and then stop working. Primary cell is not rechargeable.

TYPES OF PRIMARY CELL

            1)Voltaic cell 

            2)Daniel cell

            3)Leclanche cell

            4)Silver oxide cell

            5)Dry cell

            6)Mercury cell

1)VOLTAIC CELL

            A) Pot--Glass jar.

            B) Anode--Copper.

            C) Cathode--Zinc.

            D) Electrolyte-H2SO4.    

              E) E.M.F--1.08 volt per cell.

USED OF VOLTAIC CELL

            Present day this is not used.

2)DANIEL CELL

            A) Pot--Copper.

            B) Anode--Copper.

            C) Cathode--Zinc.

            D) Electrolyte-Copper sulfate and  H2SO4.

             E) E.M.F--1.1 volt constant.

             F)Internal resistance--2 ohms to 6 ohms.

USED OF DANIAL CELL

            1)Danial cell used in Lab.

3)LECLNCHE CELL

            A) Pot--Glass jar.

            B) Anode--Carbon.

            C) Cathode--Zinc.

            D) Electrolyte-NH4CL .

             E) E.M.F--1.46 volt.

             F)Internal resistance--1 ohms to 5 ohms.

USED OF LECLNCHE CELL

             1)Radio batteries, 

             2)Flash light,

             3)Tape, 

            4)General purpose.

4) SILVER OXIDE CELL

            A) Pot--Stainless steel.

            B) Anode--Stainless steel.

            C) Cathode--Zinc.

            D) Electrolyte-AG2O  

              E) E.M.F--1.5 volt.

## Much better than mercury cell.

USED OF SILVER OXIDE CELL

            1)Digital wrist watch, 

            2)Micro lamps, 

            3)Light.

5)DRY CELL

            A) Pot--Zinc.

            B) Anode--Carbon rod.

            C) Cathode--Zinc.

            D) Electrolyte-NH4CL , Zncl2 .

             E) E.M.F--1.4 volt to 1.5 volt.

USED OF DRY CELL

                1)Alarm clock

                2)General purpose.

6)MERCURY CELL

            A) Pot--Stainless steel.

            B) Anode--Stainless steel.

            C) Cathode--Zinc.

            D) Electrolyte-KOH

              E) E.M.F--1.35 volt to 1.4 volt.

USED OF MERCURY CELL

            1)Pocket calculator,

            2)Rich watch, 

            3)Camera.

2)SECONDARY CELL

A cell which convert chemical energy to electrical energy. Secondary cell is a rechargeable cell.

TYPES OF SECONDARY CELL

1) Lead acid cell

2)Nickel iron cell or Edison cell 

3)Nickel Cadmium cell

1) LEAD ACID CELL

            A) Pot--Herd rubber

            B) Cathode--Number of negative plates more than one is positive plates.

            C) Electrolyte-diolute H2SO4  
             ## Electrolyte method name is Forming system

            ## Charging current do not used more than 6 ampere.

            ## Discharging current do not used more than 25 ampere.

           D)  e.m.f--2.2 volt per cell.

           E)  internal resistance -- less than 20 ohms.

USED OF LEAD ACID CELL

            1)Emergency Light.

            2)UPS.

            3)General purpose.  

2)NICKEL IRON CELL OR EDISON CELL

            A) Pot--steel.

            B) Anode--NI(OH)2    

            C) Cathode--Fe(OH)2    

            D) e.m.f-- 1.2 volt to 1.5 volt.

USED OF NICKEL IRON CELL OR EDISON CELL

            1)Electrical car.

            2)Auto mobile industry.

3)NICKEL CADMIUM CELL

            A)Negative electrode anode--Cadmium.

            B)Positive electrode cathode--Nickel hydroxide.

            C)Electrolyte--Aqueous solution of potassium hydroxide.

            D)e.m.f--1.2 volt.

USED OF NICKEL CADMIUM CELL

            1)Radio.

            2)Rechargeable flash light.

IMPORTANT TOPIC OF LEAD ACID CELL

            1)High ampere hours.

            2)Efficiency 90%.

            3)e.m.f=2.2 volt.

            4)Discharging e.m.f=1.8 volt.

            5)Internal resistance is low.

            6)Battery Size is big.

IMPORTANT TOPIC OF NICKEL CELL

            1)Low ampere hours.

            2)Efficiency 80%.

            3)e.m.f=1.4 volt.

            4)Discharging e.m.f=1.1 volt.

            5)Internal resistance is high.

            6)Battery size is small.









          









  




 

 

 


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