Daim ntawv thov ntawm Sodium Carboxymethyl Cellulose hauv Non-aqueous Electrolyte Secondary Battery

Sodium carboxymethyl cellulose (NaCMC) yog cov dej-soluble, siab molecular hnyav polymer muab los ntawm cellulose. Nws cov khoom tshwj xeeb, xws li kev tuav dej siab, kev ua yeeb yaj kiab zoo heev, thiab kev ruaj ntseg zoo, ua rau nws muaj txiaj ntsig zoo hauv ntau hom kev lag luam. Nyob rau hauv xyoo tas los no, NaCMC tau tshwm sim los ua ib tus neeg sib tw zoo rau kev siv hauv cov roj teeb uas tsis muaj dej hauv cov dej electrolyte vim nws lub peev xwm los txhim kho roj teeb kev ua tau zoo thiab kev nyab xeeb. Hauv tsab xov xwm no, peb yuav tham txog daim ntawv thov ntawm NaCMC hauv cov roj teeb uas tsis yog aqueous electrolyte.

Cov roj teeb uas tsis yog-aqueous electrolyte thib ob tau siv dav hauv cov khoom siv hluav taws xob portable, hluav taws xob tsheb, thiab lub zog cia vim lawv lub zog siab ceev thiab lub neej ntev. Txawm li cas los xij, kev siv cov electrolytes uas tsis yog-aqueous ua rau muaj kev txhawj xeeb txog kev nyab xeeb, xws li thermal instability, flammability, thiab to. NaCMC tau pom los daws cov teeb meem no los ntawm kev txhim kho kev nyab xeeb thiab kev ua haujlwm ntawm cov roj teeb uas tsis yog-aqueous electrolyte Secondary.

1. Electrolyte stability: Kev ruaj ntseg ntawm cov electrolyte yog qhov tseem ceeb rau kev ua haujlwm thiab kev nyab xeeb ntawm lub roj teeb. NaCMC tuaj yeem txhim kho kev ruaj ntseg ntawm cov electrolyte los ntawm kev txo nws cov evaporation tus nqi, tiv thaiv kom tsis txhob ntws, thiab ua kom cov viscosity ntawm electrolyte. Qhov sib ntxiv ntawm NaCMC tuaj yeem txo qhov decomposition ntawm cov electrolyte thiab ua kom nws thermal stability.
2. Ion conduction: NaCMC tuaj yeem txhim kho ion conduction ntawm electrolyte los ntawm kev tsim cov gel zoo li lub network uas pab txhawb kev thauj cov lithium ions ntawm cov electrodes. Qhov no ua rau kev txhim kho roj teeb ua haujlwm thiab lub neej voj voog ntev dua.
3. Roj teeb kev nyab xeeb: NaCMC tuaj yeem txhim kho kev nyab xeeb ntawm lub roj teeb los ntawm kev tiv thaiv kev tsim cov dendrites, uas yog cov qauv zoo li rab koob uas tuaj yeem loj hlob los ntawm qhov chaw ntawm cov anode thiab nkag mus rau qhov sib cais, ua rau luv luv thiab thermal runaway. NaCMC tseem tuaj yeem txhim kho kev ruaj ntseg ntawm cov khoom siv hluav taws xob thiab tiv thaiv nws cov detachment los ntawm cov khoom siv tam sim no, txo qhov kev pheej hmoo ntawm cov hluav taws xob luv luv.
4. Electrode stability: NaCMC tuaj yeem txhim kho kev ruaj ntseg ntawm cov electrode los ntawm kev tsim cov txheej txheej zoo ib yam ntawm nws qhov chaw, uas tuaj yeem tiv thaiv kev tawg ntawm cov khoom nquag thiab txo qhov poob ntawm lub sijhawm. NaCMC tseem tuaj yeem txhim kho qhov adhesion ntawm electrode rau cov khoom siv tam sim no, ua rau kev txhim kho conductivity thiab txo qhov tsis kam.

Hauv kev xaus, NaCMC yog ib qho kev cog lus ntxiv rau kev siv hauv cov roj teeb uas tsis yog-aqueous electrolyte thib ob vim nws muaj peev xwm txhim kho roj teeb kev ua tau zoo thiab kev nyab xeeb. Nws cov khoom tshwj xeeb, xws li kev tuav dej siab, kev ua yeeb yaj kiab zoo heev, thiab kev ruaj ntseg zoo, ua rau nws muaj txiaj ntsig zoo ntxiv rau kev txhim kho kev ruaj ntseg thiab ion conduction ntawm electrolyte, tiv thaiv kev tsim ntawm dendrites, txhim kho kev ruaj ntseg ntawm cov electrode, thiab txo qhov poob ntawm lub peev xwm dhau sijhawm. Kev siv NaCMC tuaj yeem ua rau muaj kev nyab xeeb dua thiab muaj txiaj ntsig zoo dua cov roj teeb uas tsis muaj dej hauv cov dej electrolyte, uas tuaj yeem muaj kev cuam tshuam loj rau kev loj hlob ntawm kev lag luam tsheb hluav taws xob thiab lub zog cia.