Ngokuthandwa kokuhamba okuluhlaza kunye neengqikelelo zophuhliso oluzinzileyo, iinqwelo zegalufa zombane ziye zaba yindawo ebalulekileyo yokuxhasa iikhosi zegalufa kwihlabathi jikelele. Njengoko "intliziyo" yesithuthi sonke, ibhetri inquma ngokuthe ngqo ukunyamezela, ukusebenza kunye nokhuseleko. Ukusukela kwibhetri yokuqala ye-lead-acid ukuya kwibhetri ye-lithium iron phosphate (LiFePO4) ekhoyo ngoku, ukuvela kwezobuchwepheshe kuphucule kakhulu amava okusebenzisa kunye nokusebenza kakuhle kwenqwelo yegalufa. Eli nqaku liza kugxininisa kwiinzuzo ze-LiFePO4 xa kuthelekiswa neebhetri ze-lead-asidi zendabuko ngokubhekiselele kukhuseleko, ubomi bomjikelezo, ubuninzi bamandla, ukulungelelaniswa kweqondo lokushisa kunye nesantya sokushaja.
Ukulinganiselwa kweebhetri ze-lead-acid
Iibhetri ze-lead-asidi zazikhe zasetyenziswa kakhulu kwiinqwelo zegalufa ngenxa yexabiso eliphantsi kunye nobuchwepheshe obuqolileyo. Nangona kunjalo, bakwanabo neebhotile ezininzi: zinzima kwaye zithatha indawo eninzi, okubangela ukuncipha kwamava okulawula isithuthi sonke; banemfuno eziphezulu zokugcinwa kwaye kufuneka bancediswe rhoqo ngamanzi adibeneyo, ngaphandle koko baxhomekeke kwi-sulfation kunye nokunciphisa ubomi babo. Ukongeza, ubomi bomjikelezo weebhetri ze-lead-acid buhlala bujikeleze amaxesha angama-300-500, kwaye ukutshintshwa rhoqo kwandisa iindleko zokusetyenziswa kwexesha elide.
Izinto eziluncedo kwiibhetri zeLiFePO4
Ukhuseleko
Iibhetri ze-LiFePO4 zinozinzo oluphezulu kakhulu lwe-thermal kunye neekhemikhali, aziqhelekanga ekubalekeni kwe-thermal okanye ukutsha, kwaye zinobuhlobo bendalo kwaye azinabungozi. Ngaphantsi kweemeko ezingaqhelekanga ezifana nobushushu obuphezulu okanye isiphaluka esifutshane, umda wokhuseleko we-LiFePO4 ugqithise kakhulu kunezinye iinkqubo zebhetri ze-lithium, kwaye unokubonelela ngeziqinisekiso ezithembekileyo zokusetyenziswa kwiinqwelo zegalufa.
Cycle Life
Ubomi bomjikelezo weebhetri ze-LiFePO4 ziphezulu kakhulu kuneebhetri ze-lead-acid. Ngokuqhelekileyo, ngaphezu kwamaxesha angama-2,000, kwaye iimveliso ezikumgangatho ophezulu zinokufikelela kumaxesha angama-3,000-5,000, oku kuthetha ukuba ingasetyenziselwa ngokuqhubekayo iminyaka eyi-5-10 phantsi kwemeko yokukhutshwa okunzulu kanye ngosuku. Ngokwahlukileyo koko, umthamo weebhetri ze-lead-acid uya kubola ukuya ngaphantsi kwe-80% yomthamo wokuqala emva kwemijikelo ye-500, efuna ukutshintshwa rhoqo, kunye nokunyusa kakhulu iindleko zokugcinwa kunye nokulahlekelwa kwexesha lokunciphisa.
Ukuxinana kwamandla
Ubuninzi bamandla luphawu olubalulekileyo lobuchwepheshe bebhetri. Kwinqanaba elifanayo, ubunzima bebhetri ye-LiFePO4 kuphela malunga ne-1/3 yebhetri ye-lead-asidi, kwaye umthamo umalunga ne-1/2, eyanciphisa kakhulu ubunzima besithuthi kunye nokuphucula uluhlu lokuqhuba kunye nomthamo womthwalo wesithuthi. Ukongeza, ubunzulu bokukhutshwa okuphezulu (i-DoD inokufikelela kwi-80-100%) yenza izinga lokusetyenziswa kwamandla asebenzayo libe phezulu, ngelixa i-DoD efanelekileyo yebhetri ye-lead-acid imalunga ne-50% kuphela, ichitha amandla amaninzi anokubakho.
Iqondo lokuziqhelanisa neemeko
Kwimeko yokushisa ephantsi, ukusebenza kwebhetri ye-lead-acid yehla ngokukhawuleza, kwaye ukulahlekelwa kwamandla kunokufikelela ngaphezu kwe-50%; ngelixa ibhetri ye-LiFePO4 isengakwazi ukugcina ngaphezu kwe-80% yomthamo kunye nokukhutshwa kwamandla kwi--10 ° C, kunye neqondo lokushisa elincinci elivumelekileyo linokufikelela -20 ° C, elizinzile ngakumbi kwindawo yasebusika okanye ebanda kusasa.
UkuTshaja ngokukhawuleza ukukwazi ukuTshaja
Ibhetri ye-LiFePO4 ixhasa izinga eliphezulu lokutshaja (ukuya kuthi ga kwi-0.5C okanye nakwi-1C), elinciphisa kakhulu ixesha lokulinda lokutshaja kunye nokuphucula ukusebenza kakuhle kwesithuthi. Ngokwahlukileyo, izinga lokutshaja elicetyiswayo leebhetri ze-lead-asidi li-0.1C-0.2C kuphela, kwaye lihlala lithatha iiyure ze-6-8 ukuhlawula ngokupheleleyo, okunzima ukuhlangabezana neemfuno ze-high-frequency operations.
Iindleko eziBanzi kunye neXabiso
Nangona utyalo-mali lokuqala lweebhetri ze-LiFePO4 ziyi-30-50% ephezulu kuneebhetri ze-lead-acid, ngenxa yobomi bayo obugqwesileyo kunye neempawu zokugcinwa okuphantsi, iindleko zenetha zingagcinwa zifana okanye ziphantsi kwiminyaka eyi-5. Ngexesha elide, i-LiFePO4 inciphisa ukuphindaphinda kweeyure zokutshintshwa kunye nokugcinwa, kunye neendleko ezipheleleyo zobunini (TCO) ezilethwe yiyo ikhuphisana ngakumbi kuneebhetri ze-lead-acid.
Ukuqukumbela
Ukusuka kukhuseleko, ubomi bomjikelezo, ubuninzi bamandla, ukuguquguquka kobushushu ukutshaja ngokukhawuleza, iibhetri ze-LiFePO4 zibonise iingenelo ezibanzi kwizicelo zenqwelo yegalufa. Ngokulungiswa okuqhubekayo kobuchwepheshe kunye nemveliso enkulu, ixabiso leebhetri ze-LiFePO4 ziya kuqhubeka nokuhla. Kwixesha elizayo, kulindeleke ukuba ibe ngumthombo wamandla osemgangathweni weenqwelo zegalufa zombane kunye nebala elibanzi le-LSV (isithuthi esinesantya esiphantsi), incede imisebenzi yebala legalufa ukuba isebenze ngakumbi, ibe luhlaza kwaye igcineke.
Ixesha lokuposa: May-08-2025
