Uma kuqhathaniswa namanye amabhethri ayisilinda nesikwele, ukupakishwa okuguquguqukayoamabhethri e-lithiumziya ngokuya zithandwa ngokusetshenziswa ngenxa yezinzuzo zokuklama kosayizi oguquguqukayo kanye nokuminyana kwamandla aphezulu.Ukuhlola isiyingi esifushane kuyindlela esebenzayo yokuhlola amabhethri e-lithium okupakisha aguquguqukayo.Leli phepha lihlaziya imodeli yokwehluleka kokuhlolwa kwe-short-circuit yebhethri ukuze kutholwe izici eziyinhloko ezithinta ukwehluleka kwesiyingi esifushane;ihlaziya imodeli yokwehluleka ngokwenza ukuqinisekiswa kwesibonelo ngaphansi kwezimo ezihlukene futhi inikeze iziphakamiso zokuthuthukisa ukuphepha kwamabhethri e-lithium okupakisha aguquguqukayo.
Ukwehluleka kwesiyingi esifushane sokuguquguqukaukupakisha amabhethri e-lithiumngokuvamile kuhlanganisa ukuvuza okuwuketshezi, ukuqhekeka okomile, umlilo nokuqhuma.Ukuvuza kanye nokuqhekeka okomile kuvame ukuvela endaweni ebuthakathaka yephakheji ye-lug, lapho iphakheji ye-aluminium eyomile yokuqhekeka ingabonakala ngokucacile ngemva kokuhlolwa;umlilo nokuqhuma kuyizingozi eziyingozi zokukhiqiza ukuphepha, futhi imbangela ngokuvamile ukusabela okunobudlova kwe-electrolyte ngaphansi kwezimo ezithile ngemva kokuqhekeka okomile kwepulasitiki ye-aluminium.Ngakho-ke, uma kuqhathaniswa nokuhlolwa kwe-short-circuit yebhethri ye-lithium yokupakisha eguquguqukayo, isimo sephakheji ye-aluminium-plastic yisici esiyinhloko esiholela ekuhlulekeni.
Ekuhlolweni kwe-short-circuit, i-voltage ye-open-circuit ye-ibhethringokushesha kwehla ku-zero, kuyilapho i-current enkulu idlula kwisekethe bese kukhiqizwa ukushisa kwe-Joule.Ubukhulu bokushisa kwe-Joule buncike ezintweni ezintathu: zamanje, ukumelana nesikhathi.Nakuba i-short-circuit current ikhona isikhathi esifushane, ukushisa okukhulu kusengakhiqizwa ngenxa yamanje ephezulu.Lokhu kushisa kukhishwa kancane kancane esikhathini esifushane (imvamisa imizuzu embalwa) ngemva kokujikeleza okufushane, okuholela ekwenyukeni kwezinga lokushisa lebhethri.Njengoba isikhathi sikhula, ukushisa kwe-Joule kukhishwa kakhulu endaweni ezungezile futhi izinga lokushisa lebhethri liqala ukwehla.Ngakho-ke, kucatshangelwa ukuthi ukwehluleka kwebhethri kwesekethe emfishane kuvamise ukwenzeka ngesikhathi esifushane kanye nesikhathi esifushane kakhulu ngemva kwalokho.
Isimo sokuqhuma kwegesi sivame ukwenzeka esivivinyweni sesifunda esifushane sokupakishwa okuguquguqukayo kwebhethri le-lithium, okufanele kubangelwe yizizathu ezilandelayo.Eyokuqala ukungazinzi kwesistimu ye-electrochemical, okungukuthi, ukubola kwe-oxidative noma okunciphisayo kwe-electrolyte okubangelwa amandla amanje aphezulu adlula isixhumi esibonakalayo phakathi kwe-electrode ne-electrolyte, futhi imikhiqizo yegesi igcwaliswa kuphakheji ye-aluminium-plastic.Ukukhiqizwa kwegesi okubangelwa yilesi sizathu kusobala kakhulu ngaphansi kwezimo zokushisa eziphezulu, ngoba ukusabela okuseceleni kokubola kwe-electrolyte kungenzeka kakhulu emazingeni okushisa aphezulu.Ukwengeza, ngisho noma i-electrolyte ingatholi ukubola kwezinhlangothi, ingase ikhishwe kancane ngokushisa kwe-Joule, ikakhulukazi ezingxenyeni ze-electrolyte ezinomfutho we-vapor ophansi.I-bulge yokukhiqiza igesi ebangelwa yilesi sizathu izwela kakhulu ekushiseni, okungukuthi, i-bulge iyanyamalala ngokuyisisekelo lapho izinga lokushisa leseli lehla ekamelweni lokushisa.Kodwa-ke, kungakhathaliseki ukuthi iyini imbangela yokukhiqizwa kwegesi, ukucindezela komoya okuphezulu ngaphakathi kwebhethri ngesikhathi sokujikeleza okufushane kuzokwandisa ukuqhekeka okomile kwephakheji ye-aluminium-plastic futhi kwandise amathuba okwehluleka.
Ngokusekelwe ekuhlaziyweni kwenqubo kanye nendlela yokwehluleka kwesifunda esifushane, ukuphepha kwe-lithium yokupakisha eguquguqukayo.amabhethriingathuthukiswa kusuka ezicini ezilandelayo: ukwenza kahle uhlelo lwe-electrochemical, ukunciphisa ukungezwani kwezindlebe okuhle nokubi, nokuthuthukisa amandla ephakethe le-aluminium-plastic.Ukwenziwa ngcono kohlelo lwe-electrochemical kungenziwa ngama-engeli ahlukahlukene, njengezinto ezisebenzayo nezingezinhle, isilinganiso se-electrode kanye ne-electrolyte, ukuze kuthuthukiswe ikhono lebhethri lokukwazi ukumelana nokushisa okuphezulu kwamanje kanye nesikhathi esifushane.Ukwehlisa ukumelana kwe-lug kunganciphisa isizukulwane sokushisa kwe-Joule nokuqoqwa kule ndawo futhi kunciphise kakhulu umthelela wokushisa endaweni ebuthakathaka yephakheji.Ukuthuthukisa amandla ephakethe le-aluminium-plastic kungafinyelelwa ngokuthuthukisa imingcele enqubweni yokukhiqiza ibhethri, ukunciphisa kakhulu ukuvela kokuqhekeka okomile, umlilo nokuqhuma.
Isikhathi sokuthumela: Apr-13-2023