Nrog rau kev nthuav dav sai ntawm cov tsheb hluav taws xob thiab lub zog khaws cia, kev lag luam xav tau rau cov khoom siv roj teeb lithium-ion muaj zog ntxiv mus ntxiv. Raws li ib tug tseem ceeb electrolyte tivthaiv,propylene carbonate(PC) tau kos cov kev lag luam dav dav rau nws cov khoom tshwj xeeb physicochemical, ua rau nws yog tus neeg sib tw tseem ceeb hauv kev tshawb fawb thiab kev loj hlob ntawm roj teeb electrolyte.
Ua ntej, PC boasts lub siab dielectric tas li thiab muaj zog dissolving zog. Nws tuaj yeem yaj cov ntsev lithium hauv electrolytes, uas yuav tsum tau ua ua ntej rau kev thauj ion zoo hauv cov roj teeb. Qhov no feature ua rau nws zoo heev roj teeb-qib hnyav rau cov roj teeb tshwj xeeb.
Qhov thib ob, PC muaj qhov dav ua kua-theem kub ntau yam. Nrog rau qhov qis melting point thiab kub kub taw tes, nws tseem nyob rau hauv lub xeev ua kua nyob rau hauv ib tug dav kub spectrum. Nws qhov tsis tshua muaj hluav taws xob kuj tseem coj tau qhov zoo sib xws hauv kev khaws cia, tuav thiab tsim cov txheej txheem ua raws li tus qauv kev nyab xeeb thiab kev ua raws cai. Nws yuav tsum raug sau tseg tias cov roj teeb tiag tiag kuj nyob ntawm cov qauv electrolyte tag nrho thiab qhov chaw ua haujlwm tshwj xeeb.
Thib peb, PC feem ntau raug soj ntsuam nrog rau cov kuab tshuaj electrolyte tseem ceeb xws li ethylene carbonate (EC), dimethyl carbonate (DMC) thiab ethyl methyl carbonate (EMC). Piv nrog rau cov kuab tshuaj no, PC muaj ntau dua dielectric tas li thiab zoo dua lithium ntsev solubility, tab sis nthuav tawm qis fluidity ntawm qhov kub thiab txias. Los ntawm kev sib xyaw PC nrog lwm cov kuab tshuaj, cov tuam ntxhab tuaj yeem sib npaug ionic conductivity thiab kev ua haujlwm kub qis kom haum rau cov kev xav tau ntawm cov roj teeb lithium-ion sib txawv.
Plaub, roj teeb-qib purity yog qhov tseem ceeb. Moisture thiab kab impurities ncaj qha cuam tshuam rau electrolyte zoo thiab electrochemical stability. Cov kuab tshuaj rau cov roj teeb electrolytes yuav tsum tau ua raws li cov lus qhia nruj rau purity thiab noo noo cov ntsiab lus, uas pab cov tuam txhab ua kom cov khoom zoo ib yam thiab txhawb kev ruaj khov, txhim khu kev qha ntau lawm.
Zuag qhia tag nrho, PC muab cov kev daws teeb meem zoo tshaj plaws, siab dielectric tas li thiab cov kua dej dav dav. Txawm hais tias tsis haum rau txhua lub roj teeb, nws tseem yog ib qho tseem ceeb ntawm cov khoom siv hluav taws xob tshwj xeeb thiab cov roj teeb hluav taws xob R & D.
Yog tias koj xav tau kev ntseeg siabpropylene carbonatetus neeg muag khoom, tiv tauj peb pab neeg kom paub meej cov khoom tshwj xeeb, cov qauv zoo thiab cov kev daws teeb meem. Peb npaj txhij los txhawb koj txoj kev lag luam.
Kev Sib cuag: Jasmine
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Email: xima04@ximachem.com