Ukusabalala okuqhubekayo kwezimo zohlelo lokusebenza kukhuthaze ukuthuthuka okusheshayo kwemboni yebhethri.Noma ngabe imboni yezimoto zamandla amasha ethuthukayo noma imboni yokulondoloza amandla ekhuphukayo,imishini yokugcina amandlaiyisixhumanisi esibucayi kakhulu.Umthombo wamandla wamakhemikhali osuselwe ekuphenduleni kokunciphisa i-electrochemical oxidation ungagwema umkhawulo womjikelezo we-Carnot futhi unamandla okuguqula amandla afika ku-80%.Iwumkhiqizo oyithuluzi ofaneleka kakhulu embonini enkulu yokugcina amandla.Njengamanje, isidingo sokuthuthukiswa kokusebenza kwebhethri silokhu sikhula ngokuqhubekayo, kodwa futhi ihlangabezana nobunzima obufana nemikhawulo yokusebenza ngokomzimba namakhemikhali, inqubo kanye nokwenza ngcono izindleko.
Amandla amakhemikhali ahlangabezane nekhulu leminyaka lokunqwabelana, futhi isimiso esiphelele senziwe ngaphansi kokuqondisa kwemibono yesayensi esengahlolwa.Lolu hlelo luhlanganisa izingxenye ezihlukahlukene zezinto kanye nezinqubo zokukhiqiza ezisekelayo ezakha ibhethri.Ngokuzayo, kusazoba nesimo lapho ubuchwepheshe bebhethri obuningi buqhubeka bukhona, kodwa kuzoba khona okujwayelekile nokungajwayelekile.Ngesikhathi esifanayo, kuzoba nezinhlobonhlobo zemikhiqizo ohlelweni olulodwa ukuhlangabezana nezidingo ezahlukene ezingezansi.
Kunzima ukuzuza ukuthuthukiswa kokusebenza okuningi ngaphansi kwesistimu yamandla amakhemikhali, futhi ukuthuthukiswa kokusebenza okukodwa ngokuvamile kudinga ukuzidela kokunye ukusebenza.Ngakho-ke, ngokusekelwe kuzimo zohlelo lokusebenza ezicebile ezansi nomfula, kunqunywa ukuthi amasistimu ebhethri ahlukene asazohlala isikhathi eside.Kodwa kufanele kuqashelwe ukuthi ukuhlalisana akusho isabelo semakethe esimaphakathi.
Izinguquko zokusebenza zithintwa izici eziningi, futhi isiqondiso sethonya singahluka.Kubandakanya uhlobo nesilinganiso sezinto ezibonakalayo ezinhle nezingezinhle, kanye nenqubo yokuklama neyokukhiqiza, kuzothinta ukuminyana kwamandla nokusebenza kwezinga lebhethri, okusho ukuthi uma isiqondiso somthelela sihlukile, ukusebenza ngeke kuhambisane.Ngokwesibonelo, kuamabhethri e-lithium-ion, ifilimu ye-SEI eyakhiwe phakathi kwezinto ze-electrode kanye ne-electrolyte kusixhumi esibonakalayo soketshezi oluqinile ingaqinisekisa ukufakwa nokukhishwa kwe-Li+ futhi ngesikhathi esifanayo ifake ama-electron.Kodwa-ke, njengefilimu ye-passivation, ukusabalalisa kwe-Li + kuzokhawulwa, futhi ifilimu ye-SEI izobuyekezwa.Izobangela ukulahleka okuqhubekayo kwe-Li+ ne-electrolyte, bese inciphisa umthamo webhethri.
Impi yezobuchwepheshe emkhakheni wekhono eliphezulu inquma isiqondiso sephethini.Imakethe yomthamo omkhulu isho isabelo esikhulu.Ngakho-ke, uma uhlobo oluthile lwesistimu luhlangabezana kangcono nezidingo zemakethe yomthamo omkhulu, ukwethulwa kwemikhiqizo kuzokwandisa kakhulu isabelo sesistimu.Izidingo eziqinile zokuminyana kwamandla ku-inkambu yamandla ezimotoyenze amasistimu ebhethri anamandla athile aphezulu ukuthi agqame futhi amiselele amanye amasistimu.
Isikhathi sokuthumela: Oct-19-2021