M-jiharƙananan batura lithium masu zafinuna ƙarancin aikin lantarki a ƙananan yanayin zafi. Yin cajin baturi na lithium-ion a ƙananan zafin jiki zai haifar da zafi a cikin halayen sinadarai masu kyau da mara kyau, wanda zai haifar da zafi mai zafi. Saboda rashin kwanciyar hankali na ingantattun na'urori masu kyau da mara kyau a ƙananan yanayin zafi, yana da sauƙi don haifar da amsawar electrolyte don samar da kumfa na iska da hazo na lithium, don haka lalata aikin electrochemical. Saboda haka, ƙananan zafin jiki tsari ne na makawa a cikin tsarin tsufa na baturi.
Lithium-ion cajin baturi ya yi ƙasa da ƙasa a ƙananan zafin jiki, wanda zai haifar da lahani ga ingantattun na'urorin lantarki da mara kyau. Lokacin da yanayin cajin baturi ya yi ƙasa da zafin ɗaki, tabbataccen electrode na baturin yana amsawa kuma ya lalace, kuma iskar gas da zafi da ke haifarwa suna taruwa a cikin iskar gas ɗin da aka samu a cikin tabbataccen electrode, yana haifar da faɗaɗa tantanin halitta. Idan zafin jiki ya yi ƙasa sosai yayin fitarwa, sandunan za su zama mara ƙarfi. Domin kula da ayyukan gurɓataccen lantarki da na'ura mai mahimmanci, baturi dole ne a ci gaba da cajin baturi, sabili da haka, ingantaccen kayan aiki na lantarki ya kamata a ajiye shi a wani matsayi kamar yadda zai yiwu lokacin caji.
Ƙarfin baturi yana raguwa da sauri yayin hawan keke mai ƙananan zafin jiki kuma yana da tasiri mai mahimmanci akan rayuwar baturi. Cajin ƙananan zafin jiki yana haifar da sauye-sauyen girma da yawa a cikin ingantattun na'urori masu kyau da marasa kyau, wanda hakan ke haifar da samuwar lithium dendrites kuma ta haka yana rinjayar aikin baturi. Rashin wutar lantarki da raguwar iya aiki yayin zagayowar caji / fitarwa kuma shine babban abin da ke shafar rayuwar batir, kuma lalatawar LiCoSiO 2 cathode da LiCoSiO 2 cathode a yanayin zafi yana haifar da iskar gas da kumfa tare da ingantaccen electrolyte, wanda ke shafar rayuwar baturi. Halin na'urorin lantarki masu inganci da mara kyau tare da electrolyte a ƙananan zafin jiki suna haifar da kumfa waɗanda ke lalata ingantattun na'urori masu kyau da mara kyau yayin zagayowar baturi, don haka yana sa ƙarfin baturi ya lalace cikin sauri.
Tsawaita rayuwar sake zagayowar ya dogara ne da yanayin da batir ɗin da aka fitar da kuma adadin lithium ion yayin caji. Babban ma'auni na lithium ion zai hana aikin hawan keke na baturin, yayin da ƙananan ƙwayar lithium zai hana aikin hawan keke na baturin. Kamar yadda caji a ƙananan zafin jiki zai haifar da electrolyte don mayar da martani da karfi, don haka yana rinjayar halayen lantarki mai kyau da kuma mara kyau, wanda zai haifar da hulɗar tsakanin abubuwan da ke aiki da kyau da kuma mummunan abu don haka ya haifar da mummunan electrode don amsawa da kuma samar da adadi mai yawa na iskar gas ruwa, don haka ƙara zafin baturi. Lokacin da maida hankali na lithium ion ya kasance ƙasa da 0.05%, rayuwar sake zagayowar shine kawai sau 2 a rana; lokacin da cajin baturi ya fi 0.2 A / C, tsarin sake zagayowar zai iya kula da sau 8-10 / rana, yayin da ƙaddamarwar lithium dendrite ya kasance ƙasa da 0.05%, tsarin sake zagayowar zai iya kiyaye sau 6-7 / rana. .
A ƙananan zafin jiki, asarar ruwa zai faru a cikin mummunan lantarki da diaphragm na baturin Li-ion, wanda zai haifar da raguwar aikin sake zagayowar da ƙarfin cajin baturin; da polarization na tabbatacce electrode abu zai kuma haifar da gaggautsa nakasawa na korau electrode abu, haifar da lattice rashin zaman lafiya da cajin canja wurin sabon abu; da evaporation, volatilization, desorption, emulsification da hazo na electrolyte kuma zai haifar da rage sake zagayowar yi na baturi. A cikin batir LFP, kayan aiki mai aiki a saman baturi a hankali yana raguwa yayin da adadin caji da fitarwa ya karu, kuma rage yawan kayan aiki zai haifar da raguwar ƙarfin baturi; yayin aiwatar da caji da fitarwa, yayin da adadin cajin da fitarwa ya karu, kayan aiki mai aiki a cikin keɓancewa ya sake haɗuwa cikin ingantaccen tsarin baturi mai dogaro, wanda ke sa baturi ya fi tsayi da aminci.
Lokacin aikawa: Nuwamba-15-2022