Kugwiritsa ntchito CMC Binder mu Mabatire

Mu gawo laukadaulo wa batri, kusankha kwa zinthu zomangira kumakhala ndi gawo lofunikira pakuzindikiritsa magwiridwe antchito, kukhazikika, komanso moyo wautali wa batri.Carboxymethyl cellulose (CMC), polima yosungunuka m'madzi yochokera ku cellulose, yatulukira ngati chomangira chodalirika chifukwa cha zinthu zake zapadera monga mphamvu zomatira kwambiri, luso lopanga mafilimu, komanso kugwirizanitsa chilengedwe.

Kuchuluka kwa mabatire ochita bwino kwambiri m'mafakitale osiyanasiyana, kuphatikiza magalimoto, zamagetsi, ndi mphamvu zongowonjezwdwanso, kwalimbikitsa kuyesetsa kwakukulu kuti apange zida zatsopano zamabatire ndi ukadaulo. Pakati pazigawo zazikulu za batire, binder imagwira ntchito yofunika kwambiri pakupangitsa kuti zinthu zomwe zikugwira ntchito zisamayende bwino pachotolera chapano, kuwonetsetsa kuti kulipiritsa koyenera komanso kutulutsa. Zomangira zachikhalidwe monga polyvinylidene fluoride (PVDF) zili ndi malire malinga ndi momwe chilengedwe chimakhudzira, mawonekedwe amakina, komanso kuyanjana ndi ma batri am'badwo wotsatira. Carboxymethyl cellulose (CMC), yokhala ndi mawonekedwe ake apadera, yatuluka ngati njira yodalirika yomangira kuti ipititse patsogolo magwiridwe antchito komanso kukhazikika kwa batri.

1.Katundu wa Carboxymethyl Cellulose (CMC):
CMC ndi chochokera kumadzi chosungunuka cha cellulose, polima wachilengedwe wochuluka m'makoma a cellulose. Kupyolera mu kusintha kwa mankhwala, magulu a carboxymethyl (-CH2COOH) amalowetsedwa mumsana wa cellulose, zomwe zimapangitsa kuti zisungunuke komanso zigwire ntchito bwino. Zina mwazinthu zazikulu za CMC zokhudzana ndi kugwiritsa ntchito kwake

(1) mabatire akuphatikizapo:

Mphamvu yomatira kwambiri: CMC imawonetsa zomatira zolimba, zomwe zimapangitsa kuti imangire bwino zida zogwirira ntchito pamalo otolera, potero kumapangitsa kukhazikika kwa electrode.
Kuthekera kopanga filimu: CMC imatha kupanga mafilimu ofananira ndi wandiweyani pamalo a electrode, kuwongolera kuphatikizika kwazinthu zogwira ntchito komanso kukulitsa kulumikizana kwa electrode-electrolyte.
Kuyenderana ndi chilengedwe: Monga polima wosawonongeka komanso wopanda poizoni wochokera kuzinthu zongowonjezedwanso, CMC imapereka zabwino zachilengedwe kuposa zomangira zopanga ngati PVDF.

2. Kugwiritsa ntchito kwa CMC Binder mu Mabatire:

(1) Kupanga Electrode:

CMC imagwiritsidwa ntchito ngati chomangira popanga maelekitirodi amitundu yosiyanasiyana ya batire, kuphatikiza mabatire a lithiamu-ion (LIBs), mabatire a sodium-ion (SIBs), ndi ma supercapacitors.
Mu ma LIBs, CMC imathandizira kumamatira pakati pa zinthu zomwe zimagwira ntchito (mwachitsanzo, lithiamu cobalt oxide, graphite) ndi chosonkhanitsa chapano (mwachitsanzo, zojambula zamkuwa), zomwe zimatsogolera ku kukhulupirika kwa ma elekitirodi ndikuchepetsa delamination panthawi yanjinga.
Momwemonso, mu ma SIB, ma electrode opangidwa ndi CMC amawonetsa kukhazikika komanso kuyendetsa bwino njinga poyerekeza ndi maelekitirodi okhala ndi zomangira wamba.
Kukhoza kupanga mafilimu aCMCamaonetsetsa kuti yunifolomu ❖ kuyanika kwa zinthu zogwira ntchito pa otolera panopa, kuchepetsa electrode porosity ndi kuwongolera ion zoyendera kinetics.

(2) Kupititsa patsogolo Mayendedwe:

Ngakhale CMC palokha si conductive, kuphatikizika kwake mu ma elekitirodi formulations kumapangitsanso mphamvu yamagetsi ya elekitirodi.
Njira monga kuwonjezera zowonjezera zowonjezera (mwachitsanzo, kaboni wakuda, graphene) pambali pa CMC zagwiritsidwa ntchito kuti achepetse kusokoneza komwe kumakhudzana ndi maelekitirodi a CMC.
Makina ophatikizira a Hybrid Binder kuphatikiza CMC ndi ma polima oyendetsa kapena ma carbon nanomaterials awonetsa zotsatira zabwino pakuwongolera ma electrode conductivity popanda kusiya zinthu zamakina.

3.Kukhazikika kwa Electrode ndi Kuchita Panjinga:

CMC imatenga gawo lofunikira pakusunga bata ndi ma elekitirodi ndikuletsa kusungika kwa zinthu kapena kuphatikizana panthawi yoyendetsa njinga.
Kusinthasintha komanso kumamatira kolimba koperekedwa ndi CMC kumathandizira kuti ma elekitirodi atsimikizike, makamaka pansi pazovuta zamphamvu panthawi yotulutsa.
chikhalidwe cha hydrophilic cha CMC chimathandizira kusunga ma electrolyte mkati mwa ma elekitirodi, kuwonetsetsa kuti ma mayendedwe a ayoni osasunthika komanso kuchepetsa kutha kwa mphamvu pakuyenda kwanthawi yayitali.

4.Challenges ndi Zowona Zamtsogolo:

Ngakhale kugwiritsa ntchito CMC binder m'mabatire kumapereka zabwino zambiri, zovuta zingapo komanso mwayi wowongolera

(1) alipo:

Kayendetsedwe Kabwino: Kafukufuku winanso akufunika kuti muwongolere kukhathamiritsa kwa maelekitirodi ozikidwa pa CMC, mwina kudzera m'mapangidwe apamwamba a binder kapena kuphatikiza kwa synergistic ndi zowonjezera zowonjezera.
Kugwirizana ndi High-Energy Che

mistries: Kugwiritsa ntchito CMC m'mafakitale omwe akutuluka mabatire okhala ndi mphamvu zambiri, monga lithiamu-sulfure ndi mabatire a lithiamu-mpweya, kumafuna kuganizira mozama za kukhazikika kwake ndi momwe amagwirira ntchito ndi electrochemical.

（2)Kuchulukirachulukira ndi Kutsika mtengo:
Kupanga ma elekitirodi opangidwa ndi CMC m'mafakitale kuyenera kukhala kopindulitsa pazachuma, zomwe zimafunikira njira zopangira zotsika mtengo komanso njira zopangira zinthu zowopsa.

(3) Kukhazikika Kwachilengedwe:
Ngakhale CMC imapereka zabwino zachilengedwe kuposa zomangira wamba, kuyesetsa kupititsa patsogolo kukhazikika, monga kugwiritsa ntchito magwero a cellulose obwezerezedwanso kapena kupanga ma electrolyte owonongeka ndi biodegradable, ndikofunikira.

Carboxymethyl cellulose (CMC)imayimira chomangira chosunthika komanso chokhazikika chokhala ndi kuthekera kwakukulu kopititsa patsogolo ukadaulo wa batri. Kuphatikizika kwake kwapadera kwa mphamvu zomatira, luso lopanga filimu, komanso kuyanjana ndi chilengedwe kumapangitsa kukhala chisankho chowoneka bwino pakupititsa patsogolo magwiridwe antchito a electrode ndi kukhazikika pamafakitale angapo a batri. Kupitilira kafukufuku ndi ntchito zachitukuko zomwe cholinga chake ndi kukhathamiritsa ma electrode opangidwa ndi CMC, kuwongolera magwiridwe antchito, komanso kuthana ndi zovuta zomwe zingachitike zidzatsegula njira yovomerezeka ya CMC m'mabatire am'badwo wotsatira, zomwe zikuthandizira kupititsa patsogolo ukadaulo wamagetsi oyera.