SIMPLE VOLTAIC CELL &SIMPLE VOLTAIC CELL &ADVANTAGES AND ADVANTAGES AND DISADVANTAGES OF DISADVANTAGES OF VARIOUS VOLTAIC CELLVARIOUS VOLTAIC CELLSIMPLE VOLTAIC CELLSIMPLE VOLTAIC CELLChemical energy tran!"rme# int" Chemical energy tran!"rme# int" electrical energy$electrical energy$Chemical energy electrical Chemical energy electrical energyenergy %&A Sim'le ("ltaic cell c"nit "! )%&A Sim'le ("ltaic cell c"nit "! )A& t*" electr"#e +metal "r car,"n&A& t*" electr"#e +metal "r car,"n&-&an electr"lyte "l.ti"n$ -&an electr"lyte "l.ti"n$ SIMPLE VOLTAIC CELLSIMPLE VOLTAIC CELLSIMPLE VOLTAIC CELLSIMPLE VOLTAIC CELLMetal that are l"cate# Metal that are l"cate# higher uphigher up in in the electr"chemical erie +the electr"chemical erie +more more electropositive electropositive metal& *ill act a metal& *ill act a negative metalsnegative metals+ electr"#e&$+ electr"#e&$Metal l"cate# Metal l"cate# lowerlower in the in the electr"chemical erie+ electr"chemical erie+ less less electropositive electropositive metal& *ill act a metal& *ill act a the the positive terminalspositive terminals$$SIMPLE VOLTAIC CELLSIMPLE VOLTAIC CELLA im'le ("ltaic cell .ing magnei.m A im'le ("ltaic cell .ing magnei.m ri,,"n an# il(er 'late .ing il(er ri,,"n an# il(er 'late .ing il(er .l'hate "l.ti"n$.l'hate "l.ti"n$/& /&Negati(e electr"#e )Negati(e electr"#e )%& %&Mg+& MgMg+& Mg%0%0 0 % e0 % e O,er(ati"n ) Magnei.m ri,,"n #i"l(eO,er(ati"n ) Magnei.m ri,,"n #i"l(e1& P"iti(e electr"#e ) 1& P"iti(e electr"#e )

AgAg0 0+a2& 0 eAg+&+a2& 0 eAg+&O,er(ati"n ) Shiny grey "li# i !"rme#$O,er(ati"n ) Shiny grey "li# i !"rme#$SIMPLE VOLTAIC CELLSIMPLE VOLTAIC CELLO(erall i"nic e2.ati"n )O(erall i"nic e2.ati"n )MgMg+& +& 0 %Ag0 %Ag0 0+a2& +a2&MgMg%0 %0+a2&+a2& 0%Ag 0%Ag +& +&The The furtherfurther the t*" metal the t*" metal electr"#e are a'art in the reacti(ity electr"#e are a'art in the reacti(ity erie3 the erie3 the greater the defection greater the defection "n the gal(an"meter3 "r the "n the gal(an"meter3 "r the greater greater the voltagethe voltage$$A im'le ("ltaic cell .ing 4inc 'late A im'le ("ltaic cell .ing 4inc 'late an# ir"n 'late .ing an# ir"n 'late .ing c"''er+II&.l'hate "l.ti"n$ Dra* the c"''er+II&.l'hate "l.ti"n$ Dra* the #iagram$#iagram$I#enti!y the )I#enti!y the )i$Negati(e electr"#e3 hal! e2.ati"n3 i$Negati(e electr"#e3 hal! e2.ati"n3 ",er(ati"n$",er(ati"n$Ii$'"iti(e electr"#e3hal! e2.ati"n3 Ii$'"iti(e electr"#e3hal! e2.ati"n3 ",er(ati"n$",er(ati"n$Iii$ O(erall e2.ati"nIii$ O(erall e2.ati"n1. Negative electrode1. Negative electrode ))Zn Zn (s) (s)ZnZn2+ 2+(aq)(aq) + 2e+ 2eOservation Oservation ) 5inc 'late #i"l(e) 5inc 'late #i"l(e2. !ositive electrode " 2. !ositive electrode " #u#u2+ 2+(aq)(aq) + 2e #u + 2e #u (s) (s)OservationOservation ) -r"*n "li# !"rme#) -r"*n "li# !"rme#Overall equation Overall equation ) ) Zn Zn (s) (s) + #u+ #u2+2+ (aq) (aq)ZnZn2+2+ (aq)+ (aq)+ #u #u (s) (s)Explanation: Explanation:shaped like a button, supplies1.2v. shaped like a button, supplies1.2v.Uses Uses: Watch ,camera : Watch ,cameraAdvantages : Advantages :L"ng latingL"ng lating Pr"(i#e 67e# c.rrent an# ("ltage Pr"(i#e 67e# c.rrent an# ("ltageDisadvantage : Disadvantage :Cann"t ,e recharge# Cann"t ,e recharge#Explanation:Explanation: Consist of six lead acid cells connectedConsist of six lead acid cells connected in series, supplies 12 V in series, supplies 12 VUses Uses: Car battery : Car batteryAdvantages : Advantages :Can ,e recharge#Can ,e recharge# Pr"(i#e large an# 67e# c.rrent !"r a l"ng 'eri"# "!Pr"(i#e large an# 67e# c.rrent !"r a l"ng 'eri"# "! time timeDisadvantages : Disadvantages :8ea(y an# e7'eni(e8ea(y an# e7'eni(e Aci# c".l# 'ill eaily Aci# c".l# 'ill eailyEaily '"il i! n"t ta9en care 'r"'erly Eaily '"il i! n"t ta9en care 'r"'erlyExplanation : Explanation :Operates on the same principles asOperates on the same principles as an accumulator but uses dierent material an accumulator but uses dierent materialUses :Uses : !obile phones, emer"encyli"ht system. !obile phones, emer"encyli"ht system.#dvanta"es : #dvanta"es :L"ng lating3 Rechargea,le3 Chemical .,tanceL"ng lating3 Rechargea,le3 Chemical .,tance #"e n"t 'ill eaily #"e n"t 'ill eailyDisadvantage : Disadvantage :E7'eni(e E7'eni(eExplanation:most commonly used chemicalExplanation:most commonly used chemical cell, supplies 1.5v cell, supplies 1.5vUses: Radio, Torchlight Uses: Radio, TorchlightAdvantages : Advantages :eay t" carry ,eca.e (ery light eay t" carry ,eca.e (ery lightPr"(i#e a 67e# c.rrent Pr"(i#e a 67e# c.rrentDisadvantages : Disadvantages :N"t l"ng:lating N"t l"ng:latingCann"t ,e recharge# Cann"t ,e recharge#Explanation :Explanation : Similar t" #ry cell ,.t .e aSimilar t" #ry cell ,.t .e a #i;erent electr"lyte3 .''lie /$< V #i;erent electr"lyte3 .''lie /$< VUses:Uses: Ra#i"3 T"rchlight Ra#i"3 T"rchlightAdvantages : Advantages :L"ng lating L"ng latingPr"(i#e 67e# an# larger c.rrent than a #ry cell Pr"(i#e 67e# an# larger c.rrent than a #ry cellDisadvantages : Disadvantages :N"t rechargea,leN"t rechargea,le E7'eni(e E7'eni(eD" it =".rel!>>D" it =".rel!>>a& Dra* ".t the im'le ("ltaic cell a& Dra* ".t the im'le ("ltaic cell .ing the lea# an# c"''er metal an# .ing the lea# an# c"''er metal an# S"#i.m Chl"ri#e$S"#i.m Chl"ri#e$ : la,el the terminal negati(e3'"iti(e : la,el the terminal negati(e3'"iti(e an# ?"* "! electr"n$an# ?"* "! electr"n$,& 8"* i the chemical change "! ,& 8"* i the chemical change "! im'le ("ltaic cell@im'le ("ltaic cell@COMPARISON -ETAEEN COMPARISON -ETAEEN T8E ELECTROL=TIC ANDT8E ELECTROL=TIC ANDT8E VOLTAIC CELL T8E VOLTAIC CELL : C"ntain electr"lyte "l.ti"n: C"ntain electr"lyte "l.ti"n: C"ntain electr"#e: C"ntain electr"#e:In("l(e chemical changeIn("l(e chemical change:Electr"n m"(e !r"m an"#e t" cath"#eElectr"n m"(e !r"m an"#e t" cath"#e:Ani"n an# cati"n m"(e in the electr"lyteAni"n an# cati"n m"(e in the electr"lyte$%&%'()%*%+$$%&%'()%*%+$DIFFERENCESDIFFERENCES+'+#*)O',*%#+'+#*)O',*%# #+'' #+''-%..+)+N#+$ -%..+)+N#+$ /O'*(%# #+'' /O'*(%# #+''-ASIC -ASIC STRUCTURESTRUCTUREElectrical energy Electrical energy chemical chemical energyenergyELECTRIC ELECTRIC C8ANGESC8ANGESchemical chemical energy energy Electrical energyElectrical energy Negative terminalNegative terminalCAT8ODECAT8ODE Positive terminalPositive terminalPositive terminalPositive terminalANODEANODE Negative terminalNegative terminal+'+#*)O',*%#+'+#*)O',*%# #+'' #+''-%..+)+N#+$ -%..+)+N#+$ /O'*(%# #+'' /O'*(%# #+''-ASIC -ASIC STRUCTURESTRUCTUREUses batteryUses battery-ATTER= -ATTER= REBUIREMENREBUIREMENTTDoes not use Does not use batterybatteryAnode Anode CathodeCathodeTRANSFER OF TRANSFER OF ELECTRONS ELECTRONS IN T8E IN T8E CIRCUITCIRCUITCathode Cathode Anode Anode