Ukusetshenziswa kwe-CMC Binder kumabhethri

Esikhathini esingokobuchwepheshe bebhethri, ukukhetha kwezinto ezibonakalayo ze-binder kudlala indima ebalulekile ekunqumeni ukusebenza, ukuqina kanye nokuphila isikhathi eside kwebhethri.I-Carboxymethyl Cellulose (CMC), i-polymer esondelana yamanzi etholakala ku-cellulose, ivele njenge-binder ethembisa ngenxa yezakhiwo zayo ezihlukile njengamandla aphezulu anama-adhesion, amandla amahle enze amafilimu, kanye nokuhambisana kwezemvelo, kanye nokuhambisana kwezemvelo, kanye nokuhambisana kwezemvelo, kanye nokuhambisana kwezemvelo kanye nokuhambisana kwezemvelo kanye nokuhambisana kwezemvelo.

Isidingo esandayo samabhethri okusebenza okuphezulu kuzo zonke izimboni ezahlukahlukene, kufaka phakathi izimoto, ama-elekthronikhi, namandla avuselelekayo, akhulise imizamo ebanzi yocwaningo yokuthuthukisa izinto zebhethri nobuchwepheshe. Phakathi kwezinto ezisemqoka zebhethri, i-Binder idlala indima ebalulekile ekutholeni izinto ezisebenzayo ezisebenzakanyeka kumqokeleli wamanje, iqinisekise ukushaja okusebenzayo kanye nemijikelezo esebenzayo. Ama-Binders wendabuko anjenge-polyvinylidene Fluoride (PVDF) abe nemikhawulo ngokuya ngomthelela wezemvelo, izakhiwo zemishini, kanye nokuhambisana namakhisi akwakheka amakhamikhali alandelayo. I-Carboxymethyl Cellulose (CMC), enezakhiwo zayo ezihlukile, ivele njengezinto ezithembisayo ze-binder zokuthuthukisa ukusebenza kwebhethri nokusimama.

1.Propheties we-carboxymethyl cellulose (CMC):
I-CMC ingukutholwa kwamanzi okuvela kuma-cellulose, i-polymer yemvelo eminingi eminingi ezindongeni zeseli zezitshalo. Ngokuguqulwa kwamakhemikhali, amaqembu e-carboxymethyl (-ch2cooh) angeniswa emgogodleni we-cellulose, okuholela ekuhlelekeni okuthuthukile kanye nezakhiwo ezisebenzayo ezithuthukisiwe. Ezinye izakhiwo ezibalulekile ze-CMC zihlobene nesicelo sazo ku

(1) Amabhethri afaka:

Amandla aphezulu anama-adhesion: I-CMC ibonisa izakhiwo ezinamandla zokunamathela, inikeze amandla okubopha ngempumelelo izinto ezisebenzayo endaweni eqoqiwe yamanje, ngaleyo ndlela enze ngcono ukuqina kwe-elektrode.
Ikhono elihle lefilimu elithi: I-CMC ingakha amafilimu afanayo kanye nama-eclether on electrode surfaces, lula ukubekezelela izinto ezisebenzayo kanye nokwenza ngcono ukusebenzisana nge-electrode-electrode.
Ukuvumelana kwemvelo: Njenge-polyrmer engathandeki nengewona ubuthi obunobuthi obususelwa kwimithombo evuselelekayo, i-CMC inikeza izinzuzo zemvelo ngaphezulu kwama-Pvdtic Binders anjenge-PVDF njenge-PVDF.

2.Ukusebenza kwe-CMC Binder kumabhethri:

(1) Ukuqanjwa kwe-electrode:

I-CMC isetshenziswa kakhulu njenge-binder ekwakhekeni kwama-electrodes ama-electrostics ahlukahlukene asebemakhemikhali, kufaka phakathi amabhethri e-lithium-ion (ama-libs), amabhethri we-sodium-ion (ama-sibs), kanye nama-supercapacitors.
E-Libs, i-CMC ithuthukisa ukunamathela phakathi kwezinto ezisebenzayo (isib. I-Lithium Cobalt onide, i-Graphite) kanye nomqoqi wamanje (isib.
Ngokufanayo, kuma-Electrodes asuselwa ku-CMC akhombisa ukuqina okuthuthukile nokusebenza kwamabhayisekili kuqhathaniswa ne-electrodes enezinto ezijwayelekile.
Ikhono elakha amafilimu leCmIqinisekisa ukuhlanganiswa okufanayo kwezinto ezisebenzayo kumqokeleli wamanje, ukunciphisa i-electrode popoly kanye nokwenza ngcono ama-Ion Transport Kinetics.

(2) Isithuthukisi sokuvuselelwa:

Ngenkathi i-CMC ngokwayo ingenziwanga, ukufakwa kwayo kumiyalo ye-electrode kungathuthukisa ukuthuthuka kukagesi okuphelele kwe-electrode.
Amasu anjengokungezwa kwezithasiselo ezisebenzayo (isib
Ama-Hybrid Binder Systems ahlanganisa i-CMC enama-polymers asebenzayo noma ama-carbon nanomatadium akhombisa imiphumela ethembisayo ekwenzeni ngcono ukusebenza nge-electrode ngaphandle kokudela izici zomshini.

Ukuqina kwe-3.electrode nokusebenza ngebhayisikile:

I-CMC idlala indima ebalulekile ekulondolozeni ukuqina kwe-electrode kanye nokuvimbela ukuqunjelwa okusebenzayo noma ukuguquguquka kwe-agglomeration ngesikhathi sokuhamba ngebhayisikile.
Ukuguquguquka nokuqina okuqinile okunikezwe yi-CMC kufaka isandla ekuthembekeni kwemishini kwama-electrodes, ikakhulukazi ngaphansi kwezimo zokucindezela ezinamandla ngesikhathi semijikelezo yokukhipha.
Uhlobo lwe-hydrophilic lwe-CMC lusiza ekugcinweni kwe-electrolyte ngaphakathi kwesakhiwo se-elektrodi, uqinisekise ukuthuthwa kwe-ion okuqhubekayo kanye nokunciphisa umthamo ophelelwa yisikhathi ngaphezulu kwe-cycling ende.

4.Challenges nemibono yesikhathi esizayo:

Ngenkathi ukusetshenziswa kwe-CMC Binder kumabhethri kunikeza izinzuzo ezinkulu, izinselelo namathuba amaningi okuthuthuka

(1) likhona:

Ukuthuthuka okuthuthukile: Kudingeka ucwaningo olunye kabusha ukwenza ngcono ukuthuthuka kwama-electrodes asuselwa ku-CMC, kungaba ngezindlela ezintsha ze-binder noma ukuhlanganiswa kwe-synerneric ngezithasiselo ezisebenzayo.
Ukuhambisana ne-High-Energy Che

Izingane: Ukusetshenziswa kwe-CMC ku-CMCICRICE ye-Battery Cermistries nge-High Energy Densities, njengamabhethri e-lithium-sulfur kanye nama-lithium-air air, kudinga ukucubungula ngokucophelela ukusebenza kwayo nokusebenza kwayo kwe-electrochemical.

(2) ukuqina kanye nokusebenza kwezindleko:
Ukukhiqizwa kwesilinganiso sezinkampani ze-CMC kusebenza ngezomnotho, kudinga izindlela zokuhlanganiswa ezingabizi kakhulu nezinqubo zokukhiqiza ezingenako.

(3) Ukusimama Kwemvelo:
Ngenkathi i-CMC inikeza izinzuzo zezemvelo ngaphezulu kwamabhayisi ajwayelekile, imizamo yokuthuthukisa ukuqina kokuqina, njengokusebenzisa imithombo yeselula esetshenzisiwe noma ukuthuthukisa ama-electrolyte e-bioderbradable, agunyaziwe.

I-Carboxymethyl Cellulose (CMC)Imele impahla ehlukahlukene futhi eqhubekayo ye-binter enekhono kakhulu lokuthuthuka kobuchwepheshe bebhethri. Inhlanganisela yayo eyingqayizivele yamandla anamathela, amandla akwakheka amafilimu, kanye nokuthuthukiswa kwemvelo kwenza kube yisinqumo esikhangayo sokwenza ngcono ukusebenza kwe-elekfoli nokuqina kulo lonke uhla lwamakhilori ebhethri. Ukuqhubeka kokucwaninga kanye nemizamo yentuthuko okuhloswe ngayo ukwenza kahle ukwakhiwa kwama-elektrode kwe-CMC-based electrode, ukuthuthukisa ukuthuthuka, futhi ukubhekana nezinselelo ze-scalability kuzovuselela indlela yokwamukelwa okuphelele kwe-CMC kumabhethri alandelayo, okufaka isandla ekuthuthukisweni kobuchwepheshe obuhlanzekile wamandla.