Iglasi ye-carbon electrode eyenziwe kwi-nano oxide ineempawu ezahlukahlukeneyo, ezifana nokuzinza kakuhle kweebhetri, ukuqhuba okuphezulu, ukucoceka okuphezulu, akukho gesi kwi-electrode Essence.Ukuhlaziywa komphezulu okulula, amandla amancinci e-hydrogen kunye ne-oksijini, ixabiso elincinci, njl. Nangona kunjalo, ezi zithethwa ngokubanzi, ngoko ke zithini iziphumo ezithile ze-magnesium oxide kwiibhetri ze-lithium?
Okokuqala, khetha i-10-100g/L ubukhulu be-10-100g/L ububanzi phakathi kwe-0.05-10 μm ye-TiO2, SiO2, Cr2O3, ZrO2, CeO2, Fe2O3, BaSO, SiC, MgO etc amasuntswana aqinileyo anganyibilikiyo;izinto ezenziwe njenge-lithium ion zineempawu zokutshaja kakuhle kunye nokusebenza kakuhle kokukhutshwa, umthamo ophezulu, kunye nokusebenza okuzinzile kokujikeleza.
Okwesibini, i-lithium ibhetri ye-positive material, i-nano-magnesium oxide njenge-dopant conductive, ivelisa i-magnesium doped lithium ye-iron manganese phosphate ngezizathu zokulungisa, kwaye iqhubela phambili i-nano-structure ye-electrode efanelekileyo.Umthamo wayo wangempela wokukhupha ufikelela kwi-240mAh / g.Olu hlobo olutsha lwezinto ezintle ze-electrode zineempawu zamandla aphezulu, ukhuseleko, kunye namaxabiso aphantsi.Ifanelekile kwiibhetri ze-lithium-ion zamanzi kunye ne-colloidal, iipolymers ezincinci kunye naphakathi, ngokukodwa kwiibhetri zamandla aphezulu.
Emva koko, umthamo kunye nokusebenza komjikelo we-spinel manganate lithium ibhetri yenziwe yalungiswa.Kwi-lithium ion ibhetri ye-electrolyte kunye ne-spinel lithium manganenate njengezinto ezintle, i-nano-magnesium oxide yongezwa njenge-deacidifier ukususa i-asidi, inani elongezelelweyo li-0.5-20% yobunzima be-electrolyte.Ngokunciphisa i-electrolyte, umxholo we-asidi yamahhala ye-HF kwi-electrolyte iyancipha ibe ngaphantsi kwe-20ppm, eyanciphisa ukuchithwa kwe-HF kwi-LiMn2O4, kwaye iphucula umthamo kunye nokusebenza komjikelo we-LiMn2O4.
Ekugqibeleni, kwinqanaba lokuqala, i-nano magnesium oxide njengomlawuli we-pH ixutywe kunye nesisombululo se-alkali kunye nesisombululo se-ammonia njenge-agent eyinkimbinkimbi, kwaye yongezwa kwisisombululo esixubileyo esine-cobalt kunye neetyuwa ze-nickel ukuze zidibanise i-Ni-CO eyinkimbinkimbi ye-hydroxides. .
Isinyathelo sesibini kukongeza i-lithium hydroxide kwi-Ni-CO ye-composite hydroxide, kunye nomxube wonyango wokufudumeza kwi-280-420 °C.
Kwinqanaba lesithathu, umkhiqizo owenziwe kwisinyathelo sesibini uphathwa ukushisa kwindawo ye-650-750 ° C, ehambelana nexesha le-co-precipitation.Umyinge we-particle ye-lithium composite oxide iyancipha okanye i-bulk density inyuka ngokufanelekileyo.Xa i-lithium composite oxide isetyenziswe njenge-anode esebenzayo, umthamo ophezulu we-lithium ion ibhetri yesibini inokufumaneka, kwaye inani langempela le-magnesium oxide lixhomekeke kwifomula ethile.
Ixesha lokuposa: Jan-10-2023