Ingilazi ye-carbon electrode eyenziwe nge-nano oxide inezici ezihlukahlukene, njengokuzinza okuhle kwamabhethri, ukuhanjiswa okuphezulu, ukuhlanzeka okuphezulu, akukho gesi ku-electrode Essence.Ukuvuselelwa kwendawo okulula, amandla amancane e-hydrogen nomoya-mpilo, intengo eshibhile, njll. Nokho, lokhu kushiwo ngokuvamile, ngakho-ke yimiphi imiphumela ethile ye-magnesium oxide kumabhethri e-lithium?
Okokuqala, khetha ububanzi obuyi-10-100g/L buka-10-100g/L ububanzi phakathi kuka-0.05-10 μm we-TiO2, SiO2, Cr2O3, ZrO2, CeO2, Fe2O3, BaSO, SiC, MgO njll izinhlayiya eziqinile ezingancibiliki;izinto ezenziwe njenge-lithium ion zinezici zokushaja okuhle nokusebenza kahle kokukhipha, umthamo ophakeme, nokusebenza okuzinzile kokujikeleza kwegazi.
Okwesibili, i-lithium battery positive material, i-nano-magnesium oxide njenge-conductive dopant, ikhiqiza i-magnesium doped lithium iron manganese phosphate ngezizathu zokulungisa, futhi yakha i-nano-structure ye-positive electrode material.Umthamo wayo wangempela wokukhipha ufinyelela ku-240mAh/g.Lolu hlobo olusha lwezinto ezinhle ze-electrode lunezici zamandla aphezulu, ukuphepha, namanani aphansi.Ilungele amabhethri e-lithium-ion anguketshezi kanye ne-colloidal, ama-polymers amancane naphakathi nendawo, ikakhulukazi amabhethri anamandla amakhulu.
Ngemuva kwalokho, amandla nokusebenza komjikelezo webhethri ye-spinel manganenate lithium kwathuthukiswa.Ku-electrolyte yebhethri ye-lithium ion ene-spinel lithium manganenate njengento enhle, i-nano-magnesium oxide yengezwa njenge-deacidifier ukususa i-asidi, inani elingeziwe lingu-0.5-20% wesisindo se-electrolyte.Ngokuqeda i-electrolyte, okuqukethwe kwe-asidi yamahhala i-HF ku-electrolyte kuncipha kube ngaphansi kuka-20ppm, okunciphisa ukuhlakazeka kwe-HF kuya ku-LiMn2O4, futhi kuthuthukisa umthamo nokusebenza komjikelezo we-LiMn2O4.
Ekugcineni, esinyathelweni sokuqala, i-nano magnesium oxide njengesilawuli se-pH ixutshwa nesisombululo se-alkali nesisombululo se-ammonia njenge-ejenti eyinkimbinkimbi, bese yengezwa kusixazululo samanzi esixubile esiqukethe usawoti we-cobalt ne-nickel ukuze kuhlanganiswe i-Ni-CO complex hydroxides. .
Isinyathelo sesibili ukwengeza i-lithium hydroxide ku-hydroxide eyinhlanganisela ye-Ni-CO, kanye nengxube yokwelashwa kokushisisa ku-280-420 °C.
Esinyathelweni sesithathu, umkhiqizo owenziwe esinyathelweni sesibili uphathwa ngokushisa endaweni eyi-650-750 ° C, ehlobene nesikhathi sokubambisana kwemvula.Isilinganiso sikasayizi wezinhlayiyana ze-lithium composite oxide siyehla noma ukuminyana kwenqwaba kuyanda ngokufanele.Lapho i-lithium composite oxide isetshenziswa njengento esebenzayo ye-anode, ibhethri lesibili le-lithium ion elinamandla lingatholakala, futhi inani langempela le-magnesium oxide lingaphansi kwefomula ethile.
Isikhathi sokuthumela: Jan-10-2023