Yintoni ukukhutshwa kokusebenza?
Ukukhupha ukusebenza
Zikhulule-
-ukuzikhupha kubhekiselele kwinto apho umthamo osebenzisekayo webhetri wehla ngokuzenzekelayo ngenxa yeentshukumo ezizenzekelayo okanye ebezingalindelekanga ngaphakathi kwebhetri. Ngokukodwa ibandakanya ukusabela okuzenzekelayo kwe-redox kwizinto ze-electrode. Kwezi electrode zimbini, i-electrode enegative ifumana eyona -yizikhuphayo, nto leyo echitha imathiriyeli esebenzayo. Ukuzikhupha kwebhetri{5}}kusondelelene kakhulu neemeko zokugcina ibhetri.
-izinga lokuzikhupha
-izinga lokuzikhupha libhekiselele kumlinganiselo apho ibhetri ilahlekelwa khona umthamo xa izikhupha phantsi{1}}kwemiqathango yokulayisha ngexesha logcino. -izinga lokuzikhupha lichazwa njengepesenti yokunciphisa umthamo webhetri ngexesha leyunithi nganye (inyanga okanye unyaka).
Kwifomula, i-Ahₐ imele umthamo webhetri ngexesha lokugcinwa (A·h);
Ah_b imele umthamo webhetri emva kogcino (A·h);
t imele ixesha lokugcinwa kwebhetri (iinyanga okanye iminyaka).
Ireyithi yokukhupha- idla ngokunxulumana nexesha kunye nobushushu bendawo. Okukhona uphezulu ubushushu be-ambient, kokukhona icaca ngakumbi i-self{2}}discharge phenomenon. Ngoko ke, iibhetri kufuneka zihlaziywe ngamaxesha athile xa zigcinwe ixesha elide kwaye zigcinwe phantsi kweemeko ezifanelekileyo zobushushu kunye nokufuma.
Ubunzulu bokukhutshwa
Ubunzulu bokukhutshwa (i-DOD) yipesenti yokukhupha umthamo kumthamo olinganisiweyo, kunye nobudlelwane bayo bemathematika kunye ne-State of Charge (SOC) ngolu hlobo lulandelayo:
DOD{0}}S0C
Ubunzulu bokukhutshwa bunempembelelo ebalulekileyo kubomi bebhetri yesibini. Ngokubanzi, ubunzulu bokukhupha ubunzulu bebhetri yesibini, kokukhona bufutshane ubomi bayo. Ke ngoko, ukukhutshwa okunzulu kweebhetri zesibini kufuneka kuphetshwe kangangoko kunokwenzeka ngexesha lokusetyenziswa kwebhetri.
Ulawulo lokukhutshwa
Inkqubo yokukhutshwa ibhekiselele kwiimeko ezahlukeneyo ezichazwe ngexesha lokukhutshwa kwebhetri, ingakumbi kubandakanywa izinga lokukhupha (okwangoku), ukupheliswa kombane kunye nobushushu.
(1) Ukukhupha okwangoku Ukukhutshwa kwangoku kubhekiselele kubungakanani bangoku ngexesha lokukhutshwa kwebhetri. Ubungakanani bokukhutshwa kwangoku buchaphazela ngokuthe ngqo izikhombisi zokusebenza ezahlukeneyo zebhetri. Ngoko ke, xa uzisa umthamo webhetri okanye amandla, ubukhulu bokukhutshwa kwangoku kunye neemeko zokukhutshwa kufuneka zichazwe. Ukukhupha umsinga udla ngokuchazwa njengesantya sokukhupha, esibhekiselele kwisantya ekhutshwa ngaso ibhetri. Inokubonakaliswa ngeendlela ezimbini: izinga lexesha kunye nesantya sokuphindaphinda.
Umlinganiselo wexesha lizinga lokukhupha elichazwe ngexesha lokukhupha (h), oko kukuthi, ixesha (h) elifunekayo ukukhupha umthamo olinganisiweyo kumbane othile wokukhupha. Ngokuqhelekileyo ibonakaliswe njenge-C / n, apho i-C ilinganiswe umthamo kunye no-n yinto ethile yokukhupha yangoku. Izinga lexesha likwabizwa ngokuba yireyithi yeyure. Umzekelo, ukuba umthamo webhetri okaliwe ngu 50A·h, kwaye ikhupha ngoku 5A, ixesha lokulinganisa ngu 50A·h/5A=10h, kwaye ibhetri kuthiwa iphuma ngesantya seyure eziyi-10. Njengoko kunokubonwa kwindlela yokubala, ixesha elifutshane elimelelwe ngumlinganiselo wokukhupha, likhulu ukukhutshwa okukhoyo okufunekayo; ngokuchaseneyo, ixesha elide elimelwe yizinga lokukhupha, lincinci ukukhutshwa okukhoyo okufunekayo.
Umlinganiselo wokukhupha ubhekiselele kwimveliso yangoku ngebhetri xa ikhupha umthamo wayo olinganiselweyo ngexesha elithile. Ilingana ngamanani nophindaphindo lomthamo olinganisiweyo. Ngokomzekelo, izinga lokukhutshwa kwe-3C lithetha ukuba ukukhutshwa ngoku kuphindwe kathathu umthamo olinganisiweyo. Ukuba umthamo webhetri yi 15A·h, ngoko ke ukukhutshwa kwangoku kufuneka kube...
Ngokwesiqhelo, amazinga okukhutshelwa angaphantsi kwe-1/3C abonwa aphantsi-ireyithi, i-1/3C ukuya ku-3C lizinga eliphakathi-nomlinganiselo, kwaye ngaphezulu kwe-3C liphezulu- izinga.
(2) Ukupheliswa kokukhutshwa Umbane wokuyeka ukukhupha umbane unxulumene ngokuthe ngqo nemathiriyeli yebhetri kwaye uchatshazelwa zizinto ezahlukeneyo ezifana nokwakheka kwebhetri, isantya sokukhupha, kunye nobushushu obukummandla. Ngokubanzi, ngexesha eliphantsi -lobushushu, -ukukhutshwa okuphezulu kwangoku, i-electrode polarization iphezulu, imathiriyeli esebenzayo ayinakusetyenziswa ngokupheleleyo, kwaye amandla ombane ebhetri ehla ngokukhawuleza. Ke ngoko, amandla ombane okuphelisa angachazwa asezantsi ngexesha lobushushu obuphantsi-okanye obuphezulu{6}obukhoyo ({7}}obukhulu) bokuphuma. Ngexesha lokukhutshwa okuphantsi {{9} kwangoku, i-electrode polarization iphantsi, izinto ezisebenzayo zingasetyenziswa ngokupheleleyo, kwaye umbane wokuphelisa unokucaciswa phezulu.
Ukongeza kwezi zalathisi zokusebenza zingentla, ibhetri iyafuneka ukuba ingabi{0}ityhefu, ingabangeli ungcoliseko okanye umhlwa kwindawo eyingqongileyo, ikhuseleke ukuyisebenzisa, isebenze kakuhle ukutshaja kunye nokusebenza kakuhle kokutshaja, ikwazi ukungcangcazela{1}}ikwazi ukumelana, ingabinaziphumo zenkumbulo, ingabi naluvelwano kutshintsho kwiqondo lobushushu elingaphakathi, kwaye kube lula ukuyilungisa nokugcina.
