I-CMC yezinga lebhethri

I-carboxymethyl cellulose yezinga lebhethri (CMC) wuhlobo olukhethekile lwe-CMC olusetshenziswa njengesibophezelo kanye ne-ejenti ejiyayo lapho kukhiqizwa amabhethri e-lithium-ion (LIBs). Ama-LIB amabhethri aphinde ashajwe avame ukusetshenziswa kuzinto zikagesi eziphathwayo, ezimotweni zikagesi, nezinhlelo zokugcina amandla ngenxa yokuminyana kwazo okuphezulu nempilo yomjikelezo omude. I-CMC yezinga lebhethri idlala indima ebalulekile enqubweni yokwenziwa kwama-electrode yama-LIB, ikakhulukazi ekukhiqizeni ama-electrode kukho kokubili i-cathode ne-anode.

Imisebenzi Nezakhiwo zeBattery-Grade CMC:

1. Isibopho: I-CMC yezinga lebhethri isebenza njengesibophezelo esiza ukubamba izinto ze-electrode ezisebenzayo (njenge-lithium cobalt oxide yama-cathodes negraphite yama-anode) ndawonye futhi iwanamathele ku-substrate yokuqoqa yamanje (imvamisa i-aluminium foil yama-cathode necwecwe lethusi lama-anode ). Lokhu kuqinisekisa ukuqhutshwa kahle kukagesi kanye nokuzinza kwemishini ye-electrode.
2. I-ejenti ejiyayo: I-CMC yezinga lebhethri iphinda isebenze njenge-ejenti ejiyayo ekwakhekeni kodaka lwe-electrode. Isiza ukulawula i-viscosity kanye nezakhiwo ze-rheological ze-slurry, okuvumela ukumbozwa okufanayo kanye nokubekwa kwezinto ze-electrode kumqoqi wamanje. Lokhu kuqinisekisa ukujiya kwe-electrode okungaguquki kanye nokuminyana, okubalulekile ekuzuzeni ukusebenza kwebhethri okuphelele.
3. I-Ionic Conductivity: I-CMC yezinga lebhethri ingase ilungiswe ngokukhethekile noma yenziwe ukuze kuthuthukiswe ukusebenza kwayo kwe-ionic ngaphakathi kwe-electrolyte yebhethri. Lokhu kungathuthukisa ukusebenza kahle kwe-electrochemical kanye nokusebenza kahle kwebhethri le-lithium-ion.
4. Ukuzinza kwe-Electrochemical: I-CMC yezinga lebhethri idizayinelwe ukugcina ubuqotho bayo besakhiwo kanye nokuzinza kwe-electrochemical phakathi nesikhathi sokuphila sebhethri, ngisho nangaphansi kwezimo zokusebenza ezinzima ezifana namazinga okushisa aphezulu namazinga okuhamba ngebhayisikili. Lokhu kuqinisekisa ukwethembeka kwesikhathi eside nokuphepha kwebhethri.

Inqubo Yokukhiqiza:

I-CMC yezinga lebhethri ngokuvamile ikhiqizwa ngokuguqulwa kwamakhemikhali e-cellulose, i-polysaccharide yemvelo etholakala emicu yezitshalo. Amaqembu e-carboxymethyl (-CH2COOH) angeniswa kumgogodla we-cellulose ngochungechunge lokusabela kwamakhemikhali, okuholela ekwakhekeni kwe-carboxymethyl cellulose. Izinga lokushintshwa kwe-carboxymethyl nesisindo samangqamuzana e-CMC singalungiswa ukuze sihlangabezane nezidingo ezithile zebhethri ye-lithium-ion.

Izicelo:

I-CMC yezinga lebhethri isetshenziswa ngokuyinhloko ekwenzeni ama-electrode amabhethri e-lithium-ion, okuhlanganisa kokubili ukulungiselelwa kwe-cylindrical ne-pouch cell. Ihlanganiswe ekwakhekeni kwe-electrode slurry kanye nezinye izakhi ezifana nezinto ezisebenzayo ze-electrode, izithasiselo ezisebenzayo, nezinyibilikisi. I-electrode slurry ibe isigcotshwa ku-substrate yokuqoqwa kwamanje, yomiswe, futhi ihlanganiswe kuseli lokugcina lebhethri.

Izinzuzo:

1. Ukusebenza Kwe-Electrode Okuthuthukisiwe: I-CMC yebanga lebhethri isiza ukuthuthukisa ukusebenza kwe-electrochemical, ukuzinza kwebhayisikili, kanye nekhono lesilinganiso samabhethri e-lithium-ion ngokuqinisekisa ukumbozwa kwe-electrode okufanayo nokunamathela okuqinile phakathi kwezinto ezisebenzayo nabaqoqi bamanje.
2. Ukuphepha Okuthuthukisiwe Nokwethenjelwa: Ukusetshenziswa kwe-CMC yezinga eliphezulu yebhethri enezici ezifanelana nesandla ekuphepheni, ekuthembekeni, nasekuphileni isikhathi eside kwamabhethri e-lithium-ion, kunciphisa ubungozi bokuchithwa kwe-electrode, amasekhethi amafushane, kanye nemicimbi yokubaleka eshisayo.
3. Amafomula Ahlanganisiwe: Ukwakheka kwe-CMC yezinga lebhethri kungenziwa ngendlela oyifisayo ukuze kuhlangatshezwane nezidingo ezithile kanye nokuhlosiwe kokusebenza kwamakhemistri ehlukene ebhethri, izinhlelo zokusebenza, nezinqubo zokukhiqiza.

Kafushane, i-carboxymethyl cellulose (CMC) yebhethri-grade-grade iwumsebenzi okhethekile odlala indima ebalulekile ekukhiqizweni kwamabhethri e-lithium-ion asebenza kakhulu. Izakhiwo zayo eziyingqayizivele njenge-binder kanye ne-ejenti yokuqina zinomthelela ekuzinzeni, ekusebenzeni kahle, nasekuphepheni kwama-electrode ebhethri ye-lithium-ion, okuvumela ukuthuthuka kobuchwepheshe bamandla ahlanzekile kanye nokuhamba kukagesi.