Raws li tus neeg nqa khoom uas ua cov khoom siv hluav taws xob thiab nqa cov khoom siv hauv lub roj teeb lithium-ion, cov khoom siv tam sim no ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm kawg ntawm lub roj teeb ntawm tes. Aluminium ntawv ci yog qhov feem ntau siv cathode tam sim no collector. Txhawm rau txhim kho tus nqi, lub voj voog thiab kev pab cuam lub neej ntawm cov electrode, qee cov khoom siv hluav taws xob yog coated rau saum npoo ntawm aluminium ntawv ci, uas tuaj yeem txhim kho qhov kev sib cuag tiv thaiv ntawm cov khoom siv tam sim no thiab cov khoom siv, thiab txhim kho kev sib raug zoo ntawm cov khoom siv hluav taws xob. cov khoom siv thiab cov khoom siv tam sim no. Lub zog sib txuas ua rau txo qhov teeb meem ntawm cov khoom nquag tawm thaum lub sij hawm electrode cycling. Cov txheej txheem ntawm cov pa roj carbon coated aluminium ntawv feem ntau suav nrog cov pa roj carbon dub, graphene, carbon nanotubes, thiab lwm yam. Cov qauv ntawm cov pa roj carbon txheej txheej, txheej thickness, txheej txheej uniformity, thiab lwm yam yuav cuam tshuam rau cov nyhuv primer.
Qhov tsab xov xwm no siv tus ncej piece resistance test method los sib piv qhov sib txawv ntawm qhov sib txawv ntawm cov pa roj carbon-coated aluminium foils nrog cov qauv sib txawv thiab cov txheej txheej thicknesses sib txawv, thiab txheeb xyuas qhov sib xws ntawm cov ncej undercoated.
Hauv luv luv, ntxiv cov txheej txheem nruab nrab ntawm cov khoom siv thiab cov khoom siv hlau tam sim no tsis tsuas yog txhim kho kev sib cuag tiv thaiv, tab sis kuj muaj cov txiaj ntsig zoo hauv qab no:
(1) Cov txheej txheem tshuaj lom neeg thiab electrochemically ruaj khov tuaj yeem ua qhov cuam tshuam zoo rau kev tiv thaiv kom tsis txhob muaj cov pa oxygen uas ua rau muaj kev cuam tshuam sab nraud thaum lub sij hawm electrolyte decomposition thiab / los yog lithium ion intercalation cov tshuaj tiv thaiv, tiv thaiv kev tsim ntawm cov hlau tam sim no. . oxide txheej, yog li tiv thaiv degradation;
(2) Cov txheej txheem conductive nrog cov qauv tsim nyog muaj qhov ua tau zoo thiab tuaj yeem tsim thaj tsam loj ntawm kev sib cuag. Lub interface tsis kam ntawm cov khoom siv tam sim no thiab cov txheej txheem nquag yog tsawg, uas yog qhov tsim nyog rau kev hloov pauv ceev ceev;
(3) Qhov yooj yim thiab cov neeg kho tshuab buffering ntawm cov txheej txheem conductive tuaj yeem txhim kho qhov adhesion ntawm lub cev sib cuam tshuam, yog li txo cov teeb meem cuam tshuam nrog kev sib cuag tsis tu ncua los ntawm qhov kev ntxhov siab tsim los ntawm kev sib cuam tshuam thaum lub sij hawm mus sij hawm ntev. Los ntawm kev tsim thiab tsim cov txheej txheem tshwj xeeb, cov kev sim tau ua pov thawj tias cov txheej txheem kev sib txuas ua ke tuaj yeem txhim kho cov khoom siv hluav taws xob zoo, xws li cov peev txheej thim rov qab, muaj peev xwm tuav tau, kev ua haujlwm tau zoo, thiab lwm yam.
