Inqubo yamanje yendabuko ye-slurry yile:
(1) Izithako:
1. Ukulungiswa kwesixazululo:
a) Isilinganiso sokuxutshwa nesisindo se-PVDF (noma i-CMC) kanye ne-NMP ye-solvent (noma amanzi akhishwe yi-deionized);
b) Isikhathi sokunyakazisa, imvamisa yokunyakazisa kanye nezikhathi zesixazululo (kanye nezinga lokushisa elingaphezulu lesixazululo);
c) Ngemva kokuba isisombululo sesilungisiwe, hlola isisombululo: i-viscosity (ukuhlolwa), izinga lokuncibilika (ukuhlola okubonakalayo) kanye nesikhathi seshalofu;
d) I-electrode engalungile: Isixazululo se-SBR + CMC, isikhathi esishukumisayo kanye nemvamisa.
2. Into esebenzayo:
a) Bheka ukuthi isilinganiso sokuxutshwa kanye nenani lilungile yini ngesikhathi sikala nokuxutshwa;
b) Ukugaya ibhola: isikhathi sokugaya sama-electrode aqondile noma angalungile;isilinganiso sobuhlalu be-agate nengxube emgqonyeni wokugaya ibhola;isilinganiso samabhola amakhulu namabhola amancane ebhola le-agate;
c) Ukubhaka: ukusetha izinga lokushisa lokubhaka nesikhathi;hlola izinga lokushisa ngemva kokupholisa ngemva kokubhaka.
d) Ukuxuba nokunyakazisa kwento esebenzayo nesixazululo: indlela yokunyakazisa, isikhathi esinyakazayo kanye nemvamisa.
e) Isisefo: dlulisa i-100 mesh (noma i-150 mesh) isisefo se-molecular.
f) Ukuhlolwa nokuhlolwa:
Yenza izivivinyo ezilandelayo ku-slurry nengxube: okuqukethwe okuqinile, i-viscosity, ubuhle bengxube, ukuminyana kompompi, ukuminyana kwe-slurry.
Ngaphezu kokukhiqizwa okucacile kwenqubo yendabuko, kuyadingeka futhi ukuqonda izimiso eziyisisekelo zokunamathisela ibhethri ye-lithium.
Ithiyori ye-Colloid
Umphumela oyinhloko wokubangela ukuhlangana kwezinhlayiya ze-colloidal amandla e-van der Waals phakathi kwezinhlayiya.Ukwandisa ukuzinza kwezinhlayiya ze-colloidal, kunezindlela ezimbili.Enye iwukuba kwandiswe ukwenyanya kwe-electrostatic phakathi kwezinhlayiya ze-colloidal, kanti enye iwukwenza isikhala phakathi kwezimpushana.Ukuvimbela agglomeration of powders ngalezi zindlela ezimbili.
Uhlelo olulula lwe-colloidal lwakhiwe isigaba esihlakazekile kanye nendawo ehlakazekile, lapho isilinganiso sesigaba esihlakazekile sisukela ku-10-9 kuya ku-10-6m.Izinto eziku-colloid kumele zibe nezinga elithile lokuhlakazeka ukuze zibe khona ohlelweni.Ngokusho kwe-solvents ehlukene kanye nezigaba ezihlakazekile, amafomu amaningi e-colloidal ahlukene angakhiqizwa.Isibonelo, inkungu iyi-aerosol lapho amaconsi ehlakazwa khona egesi, futhi umuthi wokuxubha uyinsimbi lapho izinhlayiya ze-polymer eziqinile zihlakazwa oketshezini.
Ukusetshenziswa kwama-colloid kuningi empilweni, futhi izakhiwo ezingokomzimba zama-colloid zidinga ukuhluka ngokuya ngesigaba sokuhlakazeka kanye nendawo yokuhlakazeka.Uma ubheka i-colloid endaweni yokubuka encane, izinhlayiya ze-colloidal azikho esimweni esingaguquki, kodwa zihamba ngokungahleliwe phakathi nendawo, okuyilokho esikubiza ngokuthi ukunyakaza kwe-Brownian (ukunyakaza kwe-Brownian).Ngaphezulu kukaziro ophelele, izinhlayiya ze-colloidal zizonyakaza i-Brownian ngenxa yokunyakaza okushisayo.Lokhu kungukuguquguquka kwama-colloid amancane.Izinhlayiya ze-Colloidal ziyangqubuzana ngenxa yokunyakaza kwe-Brownian, okuyithuba lokuhlanganisa, kuyilapho izinhlayiya ze-colloidal zisesimweni sokungazinzi kwe-thermodynamically, ngakho amandla okusebenzelana phakathi kwezinhlayiyana angenye yezinto ezibalulekile zokuhlakazeka.
Isikhathi sokuthumela: May-14-2021