Intshayelelo:
Iibhetri ze-lithium ze-Ternary kunyeiibhetri ze-lithium iron phosphatezezona ntlobo zimbini ziphambili zeebhetri ze-lithium ezisetyenziswa kakhulu ngoku kwizithuthi zombane, kwiinkqubo zokugcina amandla kunye nezinye izixhobo ze-elektroniki. Kodwa ngaba uziqondile iimpawu kunye nomahluko wazo? Ukwakheka kweekhemikhali zazo, iimpawu zokusebenza kunye neendawo zokusetyenziswa zahlukile kakhulu. Masifunde ngakumbi ngazo ngeHeltec.
Ukwakhiwa kwezinto:
Ibhetri ye-lithium ye-Ternary: Izinto ze-electrode ezilungileyo zihlala ziyi-nickel cobalt manganese oxide (NCM) okanye i-nickel cobalt aluminium oxide (NCA), eyenziwe yi-nickel, cobalt, manganese okanye nickel, cobalt, aluminium kunye nezinye izinto zesinyithi ze-oxides, kwaye i-electrode engalunganga ngokubanzi yi-graphite. Phakathi kwazo, umlinganiselo we-nickel, cobalt, manganese (okanye aluminium) unokulungiswa ngokweemfuno zokwenyani.
Ibhetri ye-lithium iron phosphate: i-lithium iron phosphate (LiFePO₄) isetyenziswa njengezinto ze-electrode ezilungileyo, kwaye i-graphite ikwasetyenziswa kwi-electrode engalunganga. Ulwakhiwo lwayo lweekhemikhali luzinzile, kwaye alunazo iintsimbi ezinzima kunye neentsimbi ezinqabileyo, ezinobuhlobo nokusingqongileyo.
Ukusebenza kwentlawulo kunye nokukhupha:
Ibhetri ye-lithium ye-Ternary: isantya sokutshaja nokukhupha amanzi ngokukhawuleza, inokuziqhelanisa nokutshaja nokukhupha amanzi ngokuphezulu, ifanelekile kwizixhobo kunye neemeko ezineemfuno eziphezulu zesantya sokutshaja, njengezithuthi zombane ezixhasa ukutshaja ngokukhawuleza. Kwimeko yobushushu obuphantsi, ukusebenza kwayo kokutshaja nokukhupha amanzi kulungile, kwaye ukulahleka kwamandla kuncinci.
Ibhetri ye-phosphate yesinyithi yeLithium: isantya sokutshaja esicothayo kunye nesantya sokukhupha, kodwa ukusebenza kakuhle kokutshaja komjikelo kunye nokusebenza kakuhle kokukhupha. Ingaxhasa ukutshaja okuphezulu kwaye ingatshajwa ngokupheleleyo kwiyure e-1 ngokukhawuleza, kodwa ukusebenza kakuhle kokutshaja kunye nokukhupha kudla ngokuba malunga ne-80%, okuphantsi kancinci kunebhetri ye-ternary lithium. Phantsi kweemeko zobushushu obuphantsi, ukusebenza kwayo kwehla kakhulu, kwaye izinga lokugcina amandla ebhetri linokuba yi-50%-60% kuphela.
Uxinano lwamandla:
Ibhetri ye-lithium ye-Ternary: Uxinano lwamandla luphezulu, ludla ngokufikelela ngaphezulu kwe-200Wh/kg, kwaye ezinye iimveliso eziphambili zinokudlula i-260Wh/kg. Oku kuvumela iibhetri ze-lithium ye-ternary ukuba zigcine amandla amaninzi ngomthamo okanye ubunzima obufanayo, nto leyo enika uluhlu olude lokuqhuba kwizixhobo, njengakwizithuthi zombane, ezinokuxhasa izithuthi ukuba zihambe umgama omde.
Ibhetri ye-lithium iron phosphate: Uxinano lwamandla luphantsi kakhulu, ngokubanzi lumalunga ne-110-150Wh/kg. Ke ngoko, ukuze kufezekiswe uluhlu olufanayo lokuqhuba njengeebhetri ze-ternary lithium, iibhetri ze-lithium iron phosphate zinokufuna umthamo okanye ubunzima obukhulu.
Ubomi bomjikelo:
Ibhetri ye-lithium ye-Ternary: Ubomi bomjikelo bufutshane kakhulu, kwaye inani lomjikelo wethiyori limalunga namaxesha angama-2 000. Ekusetyenzisweni kwangempela, amandla asenokuba abolile ukuya kuthi ga kwi-60% emva kwemijikelo eli-1 000. Ukusetyenziswa okungafanelekanga, njengokutshaja kakhulu okanye ukukhupha itshaja, kunye nokusetyenziswa kwiindawo ezinobushushu obuphezulu, kuya kukhawulezisa ukubola kwebhetri.
Ibhetri ye-lithium iron phosphate: Ubomi obude bomjikelo, kunye nemijikelo yokutshaja kunye nokukhupha ngaphezulu kwama-3,500, kwaye ezinye iibhetri ezikumgangatho ophezulu zinokufikelela ngaphezu kwamaxesha angama-5,000, okulingana nokusetyenziswa ngaphezu kweminyaka eli-10. Izinzile kakuhle kwi-lattice, kwaye ukufakwa kunye nokususwa kwee-ion ze-lithium akunampembelelo ingako kwi-lattice, kwaye inokuguqulwa kakuhle.
Ukhuseleko:
Ibhetri ye-lithium ye-ternary: ukuzinza kobushushu obuphantsi, kulula ukubangela ukubaleka kobushushu phantsi kobushushu obuphezulu, ukutshaja kakhulu, i-short circuit kunye nezinye iimeko, okubangela umngcipheko ophezulu wokutsha okanye ukuqhuma. Nangona kunjalo, ngokuqhubela phambili kwetekhnoloji kunye nokuqiniswa kwamanyathelo okhuseleko, njengokusetyenziswa kweenkqubo zolawulo lwebhetri eziphucukileyo kunye nokwenza ngcono ulwakhiwo lwebhetri, ukhuseleko lwayo luhlala luphucuka.
Ibhetri ye-lithium iron phosphate: uzinzo oluhle lobushushu, izinto ze-electrode ezilungileyo azilula ukukhupha ioksijini kubushushu obuphezulu, kwaye aziyi kuqala ukubola de kube yi-700-800℃, kwaye aziyi kukhupha iimolekyuli zeoksijini xa zijongene nefuthe, ukubhoboza, ukujikeleza okufutshane kunye nezinye iimeko, kwaye azinawo amathuba okutsha ngamandla, zisebenza ngokukhuselekileyo.
Ixabiso:
Ibhetri ye-lithium ye-Ternary: kuba izinto ze-electrode ezilungileyo ziqulethe izinto zesinyithi ezibizayo ezifana ne-nickel kunye ne-cobalt, kwaye iimfuno zenkqubo yemveliso ziphezulu, kwaye neemfuno zokusingqongileyo nazo zingqongqo, ngoko ke iindleko ziphezulu.
Ibhetri ye-phosphate yesinyithi yeLithium: ixabiso lezinto ezikrwada liphantsi kakhulu, inkqubo yemveliso ilula kakhulu, kwaye ixabiso lilonke linezibonelelo ezithile. Umzekelo, kwiimoto ezintsha zamandla, iimodeli ezixhotyiswe ngeebhetri ze-lithium iron phosphate zihlala ziphantsi kakhulu ngexabiso.
Isiphelo
Ukukhetha ibhetri kuxhomekeke kakhulu kwiimfuno ezithile zesicelo. Ukuba kufuneka amandla amaninzi kunye nobomi bebhetri obude, iibhetri ze-ternary lithium zinokuba lolona khetho lungcono; ukuba ukhuseleko, ukuqina kunye nobomi obude zezona zinto ziphambili, iibhetri ze-lithium iron phosphate zifanelekile ngakumbi.
IHeltec Energy liqabane lakho olithembayo kwiibhetriukwenziwa kwemveliso. Ngokugxila kwethu okungapheliyo kuphando nophuhliso, kunye noluhlu lwethu olubanzi lwezixhobo zebhetri, sinikezela ngezisombululo ezihlala zihleli ukuhlangabezana neemfuno eziguqukayo zoshishino. Ukuzinikela kwethu ekugqweseni, izisombululo ezilungiselelwe wena, kunye nobudlelwane obuqinileyo nabathengi kusenza sibe lukhetho olukhethwayo kubavelisi kunye nababoneleli beepakethe zebhetri kwihlabathi liphela.
Ukuba unemibuzo okanye ungathanda ukwazi okungakumbi, nceda ungathandabuzi ukubuzaqhagamshelana nathi.
Isicelo seNgqikelelo:
UJacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
Impumelelo:sucre@heltec-bms.com/ +86 136 8844 2313
UNancy:nancy@heltec-energy.com/ +86 184 8223 7713
Ixesha leposi: Disemba-27-2024