IBattery-grade CMC

I-Battery-grade carboxymethyl cellulose (CMC) luhlobo olukhethekileyo lwe-CMC olusetyenziswa njengesibophelelo kunye ne-agent etyebisayo ekwenzeni iibhetri ze-lithium-ion (LIBs). Ii-LIBs ziibhetri ezinokutshajwa kwakhona eziqhele ukusetyenziswa kwizixhobo zombane eziphathwayo, izithuthi zombane, kunye neenkqubo zokugcina amandla ngenxa yokuxinana kwamandla aphezulu kunye nobomi bomjikelo omde. I-CMC yeBattery-grade idlala indima ebalulekileyo kwinkqubo yokwenziwa kwe-electrode ye-LIBs, ngakumbi ekuvelisweni kwee-electrode zombini i-cathode kunye ne-anode.

Imisebenzi kunye neePropati zeBattery-Grade CMC:

1. Isibophelelo: I-CMC yeBattery-grade isebenza njengesibophelelo esinceda ukubamba izinto ezisebenzayo ze-electrode (ezifana ne-lithium cobalt oxide ye-cathodes kunye negraphite ye-anodes) kunye kwaye ibambelele kwi-substrate yomqokeleli yangoku (ngokuqhelekileyo i-aluminium foil ye-cathodes kunye ne-foil yobhedu ye-anodes ). Oku kuqinisekisa ukuhanjiswa kombane kunye nokuzinza komatshini we-electrode.
2. I-Arhente eQinisayo: I-CMC yeBattery-grade ikwasebenza njenge-ajenti yokuqina kwi-electrode slurry formulation. Inceda ukulawula i-viscosity kunye neempawu ze-rheological ze-slurry, ivumela ukugquma okufanayo kunye nokubekwa kwezinto ze-electrode kumqokeleli wangoku. Oku kuqinisekisa ukuqina kwe-electrode engaguqukiyo kunye noxinaniso, ezibaluleke kakhulu ekufezekiseni ukusebenza kakuhle kwebhetri.
3. I-Ionic Conductivity: I-Battery-grade CMC inokuguqulwa ngokukodwa okanye yenziwe ukunyusa umgangatho wayo we-ionic ngaphakathi kwebhetri ye-electrolyte. Oku kunokuphucula ukusebenza kwe-electrochemical jikelele kunye nokusebenza kakuhle kwebhetri ye-lithium-ion.
4. Ukuzinza kwe-Electrochemical: I-Battery-grade CMC yenzelwe ukugcina ingqibelelo yesakhiwo kunye nokuzinza kwe-electrochemical phezu kwexesha lokuphila kwebhetri, naphantsi kweemeko zokusebenza ezinzima ezifana nokushisa okuphezulu kunye namazinga okuhamba ngebhayisikile. Oku kuqinisekisa ukuthembeka kwexesha elide kunye nokhuseleko lwebhetri.

Inkqubo yokuVelisa:

IBattery-grade CMC idla ngokuveliswa ngokuguqulwa kweekhemikhali zeselulosi, ipolysaccharide yendalo ephuma kwimicu yezityalo. Amaqela e-carboxymethyl (-CH2COOH) angeniswa kwi-cellulose backbone ngokusebenzisa uluhlu lwee-chemical reactions, okubangelwa ukubunjwa kwe-carboxymethyl cellulose. Iqondo le-carboxymethyl substitution kunye nobunzima bemolekyuli ye-CMC inokulungelelaniswa ukuhlangabezana neemfuno ezithile zezicelo zebhetri ze-lithium-ion.

Usetyenziso:

I-CMC yeBattery-grade isetyenziswa ikakhulu ekwenziweni kwee-electrodes kwiibhetri ze-lithium-ion, kubandakanywa zombini iiseli ze-cylindrical kunye ne-pouch cell. Ifakwe kwi-electrode slurry formulation kunye namanye amacandelo afana nezinto ezisebenzayo ze-electrode, i-additives conductive, kunye ne-solvents. I-electrode slurry iye igqunywe kwi-substrate yomqokeleli yangoku, yomiswe, kwaye idityaniswe kwiseli yokugqibela yebhetri.

Izinto eziluncedo:

1. Ukuphuculwa kokuSebenza kwe-Electrode: I-Battery-grade CMC inceda ukuphucula ukusebenza kwe-electrochemical, ukuzinza kwebhayisikile, kunye nesantya sokukwazi kweebhetri ze-lithium-ion ngokuqinisekisa ukugquma kwe-electrode efanayo kunye nokubambelela okuqinileyo phakathi kwezinto ezisebenzayo kunye nabaqokeleli bangoku.
2. Ukhuseleko oluphuculweyo kunye nokuthembeka: Ukusetyenziswa komgangatho ophezulu webhetri-grade CMC kunye neempawu ezihambelanayo zifaka isandla ekukhuseleni, ukuthembeka, kunye nokuphila ixesha elide kweebhetri ze-lithium-ion, ukunciphisa umngcipheko we-electrode delamination, iisekethe ezimfutshane, kunye neziganeko zokubaleka kwe-thermal.
3. Ulwakhiwo olulungiselelweyo: Imixube yeBattery-grade CMC inokwenziwa ngokwezifiso ukuze ihlangabezane neemfuno ezithile kunye neethagethi zokusebenza kweekhemistri ezahlukeneyo zebhetri, usetyenziso, kunye neenkqubo zokuvelisa.

Isishwankathelo, ibhetri-grade carboxymethyl cellulose (CMC) yinto ekhethekileyo edlala indima ebalulekileyo ekuveliseni iibhetri ze-lithium-ion eziphezulu. Iimpawu zayo ezizodwa njenge-binder kunye ne-ejenti yokuqina igalelo ekuzinzeni, ukusebenza kakuhle, kunye nokhuseleko lwe-lithium-ion ibhetri ye-electrode, eyenza ukuqhubela phambili kobuchwephesha bamandla acocekileyo kunye nokuhamba kombane.