Ukusetyenziswa kwe-CMC Binder kwiibhetri

Njengomxhasi ophambili wezixhobo ezimbi ze-electrode ezingasekekiyo, iimveliso ze-CMC zisetyenziswa ngokubanzi ngabavelisi basekhaya nabangaphandle. Isixa esifanelekileyo sobusi sinokufumana umthamo omkhulu webhetri, ubomi obude bobomi kunye nokuxhathisa okuphantsi.

I-Binder yenye yezona zinto zibalulekileyo zokusebenza ezincedisayo eLithium-ion. Ngumthombo ophambili weempawu zoomatshini woomatshini bonke i-electrode kwaye inefuthe elibalulekileyo kwinkqubo yemveliso ye-electrode kunye ne-electrochemical ukusebenza kwebhetri. I-binder ngokwayo ayinawo amandla kwaye ithatha indawo encinci kakhulu ebhetri.

Ukongeza kwipropathi yobumbelela ye-Binders jikelele, i-Lithium-ion ye-Iyom-Ion ye-Iyon-Ion ye-LIDTROE ye-electrode nayo kufuneka ikwazi ukumelana nokudumba kunye nokususwa kwe-electrolyte, kunye nokungaphumeleli. Ihlala izinzile kuluhlu lwevolthi yokusebenza, ngenxa yoko akukho zixhobo ezininzi ze-polymer ezinokusetyenziswa njengezibonda ze-electrode ze-lithium-ion.

Zintathu iindidi zebhetri zebhetri ze-lithium-ion ezisetyenziswa ngokubanzi: Ukongeza, i-Polyacyric Acid (i-Polyacylic Acid (i-PAA), ii-binders ezisekwe emanzini ngePolyacylonitrile (ipani) kunye ne-polyacrylates njengoko izinto eziphambili zinendawo yentengiso ethile.

Iimpawu ezine zenqanaba le-CMC

Ngenxa yokusukelwa kwamanzi ahluphekayo yesakhiwo se-acid ye-carboxymethyl seluplose, ukuze sisebenzise ngcono, i-CMC yinto esetyenziswa kakhulu kwimveliso yebhetri.

Njengomxhasi ophambili wezixhobo ezimbi ze-electrode ezingasekekiyo, iimveliso ze-CMC zisetyenziswa ngokubanzi ngabavelisi basekhaya nabangaphandle. Isixa esifanelekileyo sobusi sinokufumana umthamo omkhulu webhetri, ubomi obude bobomi kunye nokuxhathisa okuphantsi.

Iimpawu ezine ze-CMC zezi:

Okokuqala, i-CMC inokwenza i-hydrophilic yemveliso kwaye inyibilize, inyibilike kakhulu emanzini, ngaphandle kwentsimi yasimahla kunye nokungcola.

Okwesibini, inqanaba lokufakwa endaweni yiyunifomu kwaye i-viscofity iZinzile, enokubonelela ngohlobo oluzinzileyo kunye nonethesion.

Okwesithathu, velisa iimveliso ezicocekileyo eziphezulu kunye nomxholo wensimbi yentsimbi ephantsi.

Okwesine, imveliso ihambelana ngokuchanekileyo sbr i-sbb kunye nezinye izinto.

I-CMC Sodium Carboxymethyl Selelose esetyenzisiweyo kwibhetri iphucule ngokufanelekileyo isiphumo sokusetyenziswa kwayo, kwaye kwangaxeshanye siyibonelela ngokusebenza kakuhle, kunye nefuthe langoku.

Indima ye-CMC kwiibhetri

I-CMC yi-carboxymmethythythylated yokutyunjwa kwe-sellyulose, ehlala ilungiselelwe ngokuphendula kwi-sellyuli yendalo kunye ne-caustic alkali kunye ne-moleclorocetic acid, kunye neemolekyuli zemolekyuli ezivela kumawakawaka ezigidi.

I-CMC i-white ukuya kwi-powler ephuzi ye-phuzi, i-granular okanye i-fibros, ene-hygroscoficicy kwaye inyibilikiswe ngokulula emanzini. Xa ingathathi hlangothi okanye i-alkaline, isisombululo kukungafihli i-viscofity ephezulu. Ukuba ifuduselwe ngaphezulu kwe-80 ℃ Ixesha elide, i-vickosity iya kuncipha kwaye iya kuba i-insulle emanzini. Ijika i-brown xa ifudumele i-190-205 ° C, kwaye ikharbhoni xa ifudumele ukuya kuma-235-248 ° C.

Kuba i-CMC inemisebenzi yokutyibilika, i-bowning, ukugcinwa kwamanzi kunye nokumiswa kwesisombululo esinamandla, isetyenziswa ngokubanzi kwi-Ceemings kwi-ceyer i-7%, yaziwa ngokuba yi "monosodium yezamashishini glutamate ".

Ngokukodwa kwibhetri, imisebenzi ye-CMC yile: Ukusasaza izinto ezibonakalayo ze-electrode ze-electrode kunye nearhente eqhubayo; Impembelelo yokuthintela kunye nokuchasana nendalo kwi-electrode ye-electrode ye-electrode; ukuncedisa; Ukuzinzisa ukwenziwa kwenkqubo ye-electrode kunye nokuncedisa ukuphucula ukusebenza kwengqokelela yebhetri; Phinda uphucule amandla e-peel ye-Pole yePole, njl.

Intsebenzo ye-CMC kunye nokukhethwa

Ukongeza i-CMC xa usenza i-electrode ye-electrode inokonyusa i-viscofity ye-slicry kwaye ithintele isilayidi sokungazinzi. I-CMC iya kuyenza i-ions yesodium kunye nee-aions kwisisombululo esinamandla, kwaye i-viscosity ye-CMC Glue iya kuncipha ngokunyuka kobushushu, ekulula ukuyifumana ukuqina kwaye inesifo sokufuma kwaye sine-elasticacial.

I-CMC inokudlala indima entle kakhulu ekusasazeni igrafikhi ye-electrode. Njengamanani onyuso lwe-CMC, iimveliso zayo zokuzimela ziya kulandela ngqo umphezulu wamasuntswana egrafiti, kwaye amasuntswana egrafiti aya kuphinda arhoxise ngenxa yamandla ombane, afikelele kwifuthe lokusasazeka.

Ukungaqiniseki okucacileyo kwe-CMC kukuba kuyinto engeyiyo. Ukuba yonke i-CMC isetyenziswa njenge-binder, igrafikhi yegrafikhi iyawa ngexesha lokucinezelwa kunye nokusika inkqubo ye-pole ye-pole, eya kuthi ilahle ilahleko enkulu. Kwangelo xesha, i-CMC ichaphazeleke kakhulu ngumyinge wezixhobo ze-elecrode kunye nexabiso le-pH, kunye nephepha le-electrode linokuqhekeza ngexesha lokutshaja kunye nokuchaphazela ukhuseleko lwebhetri.

Ekuqaleni, i-binder esetyenziselwa i-electrode engeyiyo i-PVDF kunye nezinye iibhanti ezisekwe kwioyile, kodwa zithathela ingqalelo ukhuseleko lwendalo, kodwa zithathela ingqalelo ukhuseleko lwendalo, kodwa ziqwalasele ukhuseleko lwendalo esisingqongileyo kunye nezinye izinto, kuyeyona nto iphambili ekusebenziseni ama-encroders esekwe emanzini.

I-Binder egqibeleleyo ayikho, zama ukukhetha isibophelelo esihlangabezana nokuqhubela phambili komzimba kunye neemfuno ze-electrochemical. Ngokuphuhliswa kwetekhnoloji yebhetri yeLithium, kunye neindleko kunye neziKhuselo zoKhuselo lwezeNdalo, ii-Binders ezisekwe emanzini ekugqibeleni ziya kuthatha indawo yezixhobo ezisekwe kwioyile.

I-CMC ezimbini zeenkqubo zeMveliso

Ngokutsho kwe-EYETIONATIONATIONATIONATIONATIONATIONATIONATIONATIONATIONATIONATIONATIONATIONATIONATIONOS, ukuveliswa kwemveliso ye-CMC kunokwahlulwa kuba ziindidi ezimbini: indlela esekwe emanzini kunye nendlela esekwe kwiSolvent. Indlela esebenzisa amanzi njengoko impendulo ephakathi ibizwa ngokuba yindlela ephakathi yamanzi, esetyenziselwa ukuvelisa i-Alkaline Medium Medium Medium kunye ne-CMC ephantsi. Indlela yokusebenzisa isolvent ye-organic njengoko impendulo ephakathi ibizwa ngokuba yindlela ye-Solvent, elungele ukuveliswa kwe-CMC ephakathi nenqanaba eliphezulu. Ezi ndlela zimbini zisenziwa zenziwa kwigobo, ezikwinkqubo yokugcoba kwaye okwangoku yeyona ndlela iphambili yokuvelisa i-CMC.

Indlela ephakathi yamanzi: Inkqubo yemveliso yangaphambili yemizi-mveliso, le ndlela kukusabela i-alkali seseli ye-alkali kunye ne-arhente ye-elekrele phantsi kweemveliso ze-CMKALI kunye neBanga le-CMS, ezinje ngee-agents zilinde. Inzuzo yendlela ephakathi yamanzi kukuba iimfuno zezixhobo zilula kwaye iindleko ziphantsi; Ukungancedi kakuhle kukuba ngenxa yokunqongophala kwenani eliphezulu le-zurha, ubushushu obuveliswe yindlela yokuphendula, bukhawulezisa isantya sokusebenza esisezantsi kunye nomgangatho wemveliso ephantsi.

Indlela yeFollent; Kwabizwa ngokuba yiNdlela yeHlabathi ye-orgation, yahlulahlulwe yaba yindlela yokuxolelwa kunye nendlela yokutsala ngokwesixa sokuphendula esihle. Eyona nto iphambili kukuba i-alkalization kunye neempendulo ze-etheriyahesi zenziwa phantsi kwemeko ye-organic yeSholvent njengendlela yokuphendula (inyani) ye. Njengenkqubo yokuphendula yendlela yaManzi, indlela yesinyithi ikwanamanqanaba amabini okwenza i-alkaliy kunye nesisori, kodwa indlela awasabela ngayo la manqanaba mabini yahlukile. Inzuzo yendlela yesinyithi kukuba iyaphela inkqubo yeAlkali ihamba, icinezela, ityumze, kwaye ihlukile kwindlela yaManzi, kwaye i-SEKALUTIS iqhutywa kwigobo; Ukungancedi kakuhle kukuba ukungalawulwa kobushushu kuhlwempuzekile, kwaye iimfuno zesithuba zihlwempuzekile. , iindleko eziphezulu.