Muaj ntau cov txuj ci kev qhia ntawm graphite anode cov ntaub ntawv, thiab nws yog qhov nyuaj rau kev faib tawm, kev sib tw me me, ua ntej qhov muaj peev xwm, thawj zaug ua haujlwm, thiab lwm yam. Ib qho ntxiv, muaj cov ntsuas hluav taws xob xws li lub voj voog ua tiav, kev ua tau zoo, o, thiab lwm yam. Yog li, dab tsi yog cov ntsuas ntsuas ntawm graphite anode cov khoom siv? Cov ntsiab lus hauv qab no tau qhia rau koj los ntawm HCMILLING (GUILIN Hongcheng), cov chaw tsim khoom ntawm lubCov Khoom Siv Anode sib tsoo zeb.

01 thaj chaw thaj tsam 01

Hais txog thaj chaw ntawm ib qho khoom ntawm ib yam khoom hauv pawg. Qhov me me ntawm particle, qhov loj dua qhov chaw tshwj xeeb thaj tsam.

Qhov tsis zoo electrode nrog cov khoom tsis zoo nrog cov khoom me me thiab cov kev sib tw ntau dua rau cov kev sib cav sib ceg ntau rau kev ua haujlwm litithium ion migration, thiab tus nqi kev ua tau zoo dua. Txawm li cas los xij, vim muaj thaj chaw sib ze loj nrog cov electrolyte, thaj chaw rau tsim cov SEI zaj duab xis kuj loj, thiab thawj zaug ua haujlwm tseem ceeb Cov. Qhov loj dua, ntawm qhov tod tes, muaj qhov zoo ntawm kev sib cav ntau dua.

Thaj chaw tshwj xeeb thaj tsam ntawm graphite anode cov khoom siv yog qhov dua tsawg dua 5m2 / g.

02 Qhov loj me me faib

Tus cawv ntawm cov particle loj ntawm graphite anode cov khoom siv nyob rau ntawm nws cov khoom me me uas yuav cuam tshuam ncaj qha rau tus kais ntawm cov khoom siv thiab thaj chaw tshwj xeeb ntawm cov khoom.

Qhov loj me ntawm tus kais ceev yuav cuam tshuam ncaj qha rau lub zog lub zog ntom ntawm cov khoom loj faib ntawm cov khoom tuaj yeem ua kom zoo tshaj plaws ntawm cov khoom siv.

03 Coj Kais Density

Tus kais ceev yog qhov loj ib feem ntim ntsuas los ntawm qhov ntsuas ntsuas los ntawm kev co uas ua rau cov hmoov tshwm sim hauv ib daim ntawv loj. Nws yog qhov taw qhia tseem ceeb los ntsuas cov khoom siv nquag. Qhov ntim ntawm cov roj teeb lithium-ion tsuas yog txwv. Yog tias tus kais ceev ceev yog qhov siab, cov khoom siv nquag rau ib chav ntim muaj ib pawg loj, thiab cov ntim muaj peev xwm loj.

04 COMPULION Density

Qhov kev sib xyaw ua ke yog qhov tseem ceeb rau tus ncej, uas yog hais txog qhov chaw ntom ntom nti, kev ua kom tsis zoo Thickness ntawm tus tooj liab ntawv ci).

Qhov kev sib xyaw ua ke yog ze ze rau cov ntawv muaj peev xwm, kev ua tau zoo, sab hauv kev ua haujlwm thiab kev ua haujlwm roj teeb.

Zom cov ntsiab lus ntawm kev ua kom ntom ntom: particle loj, xa tawm thiab morphology txhua tus muaj cov nyhuv.

05 Qhov Tseeb Tseeb

Qhov hnyav ntawm cov khoom muaj teeb meem ib teev ntawm cov khoom siv nyob rau hauv ib qho kev nyob rau hauv ib tug heev li ntau heev lub xeev (tsis suav nrog voids hauv voids).

Txij li thaum muaj qhov tseeb tseeb yog ntsuas hauv lub xeev tau sib xyaw, nws yuav siab dua li cov ntom ntom. Feem ntau, muaj tseeb ceev> kev sib xyaw ua ke> tapped ntom.

06 tus thawj them nqi thiab tshem tawm qhov muaj peev xwm tshwj xeeb

Daim duab graphite anode cov khoom muaj peev xwm tsis muaj peev xwm nyob rau hauv thawj zaug them-tawm voj voog. Thaum thawj txheej txheem them cov roj teeb ntawm cov roj ntsha lithium-ion, thiab cov kuab tshuaj pleev ib ce thiab cov nplai ntawm anode cov khoom decomposes los ua sei. Passivation zaj duab xis. Tsuas yog tom qab tsis zoo electrode nto tau npog tag nrho los ntawm SEI zaj duab xis, cov kuab tshuaj molecules tsis tuaj yeem sib deev, thiab cov tshuaj tiv thaiv tau nres. Lub cim ntawm SEI zaj duab xis tau noj ib feem ntawm cov kab mob meth, thiab cov txheej txheem tsis zoo, yog li txo cov peev xwm ntawm thawj zaug.

07 Thawj Coulomb Zoo

Qhov taw qhia tseem ceeb rau kev ntsuam xyuas cov khoom ua haujlwm ntawm cov khoom anode yog nws thawj zaug them nyiaj-tuasiciency, tseem hu ua thawj coulomb zoo. Thawj thawj zaug, Coulombic efficiency ncaj qha txiav txim cov kev ua tau zoo ntawm cov khoom siv hluav taws xob.

Txij li thaum SEI zaj duab xis feem ntau yog tsim nyob rau saum npoo ntawm cov khoom siv hluav taws xob, qhov tshwj xeeb thaj tsam ntawm cov khoom siv hluav taws xob ncaj qha cuam tshuam rau thaj tsam ntawm SEI. Qhov loj dua qhov chaw tshwj xeeb thaj tsam, qhov chaw sib tiv tauj nrog thaj tsam nrog rau electrolyte thiab qhov loj dua thaj chaw rau kev sib sau cov yeeb yaj kiab SEI.

Nws yog feem ntau ntseeg hais tias kev tsim ntawm lub ruaj ntseg sei zaj duab xis tau txais kev hloov pauv thiab rho tawm cov tshuaj tiv thaiv kab mob hluav taws xob, ua kom tuab ntawm cov yeeb yaj kiab sei, thiab Nce sab hauv kev tsis kam.

08 lub voj voog ua tau zoo

Lub voj voog ua tau zoo ntawm lub roj teeb hais txog ntau tus nqi thiab rho tawm tias roj teeb uas muaj peev xwm them rau qee yam roj teeb muaj nqi. Hais txog kev voj voog ua tau, tus SEI zaj duab xis yuav cuam tshuam qhov kev sib txawv ntawm lithium ions rau qee yam. Raws li tus naj npawb ntawm cov voj voog nce, tev tawm mus txuas ntxiv mus rau sab hauv qhov tsis zoo elide, uas nqa cov cua kub sib txuam thiab muaj peev xwm poob Cov.

09 nthuav tawm

Muaj txoj kev sib txheeb zoo ntawm kev nthuav dav thiab lub neej ntev. Tom qab qhov tsis zoo electrands nthuav, ua ntej, cov kev ua yeeb yam winding yuav raug tawg thiab rov ua yeeb yam, cov kev ua yeeb yam hluav taws xob, cov kev ua tau zoo yuav tsis zoo; Thib ob, lub diaphragm yuav tau nyem. Siab, tshwj xeeb tshaj yog cov extrusion ntawm lub diaphragm ntawm txoj cai-kaum pob ntseg, thiab nws yog qhov yooj yim heev, thiab nws yooj yim los ua rau kev nce qib ntawm kev ua raws li lub voj voog.

Raws li qhov nthuav dav nws tus kheej muaj kev txhawj xeeb, lithium ions yuav yog nyob rau hauv cov txheej txheem graphite thaum lub sij hawm graphite Intercalation plawg thiab nce ntxiv hauv ntim. Qhov kev nthuav dav no yog irreversible. Tus nqi ntawm kev nthuav dav yog cuam tshuam nrog kev taw qhia ntawm qhov tsis zoo electrode, cov qib ntawm kev taw qhia = IPE4 / I110, uas tuaj yeem suav los ntawm XRD cov ntaub ntawv. Lub anisotropic graphite Cov khoom siv rau kev nthuav dav lattice nyob rau hauv cov txheej txheem Lithister ntawm Graphite) thaum lub sij hawm loj dua cov khoom loj ntawm lub roj teeb.

10Tus Nqi Kev Ua Haujlwm

Lub diffusion ntawm lithium ions hauv graphite anode cov khoom siv muaj zog, nws tsuas tuaj yeem ntxig rau lub ntsej muag kawg ntawm C-Axis ntawm Graphite Crystal. Anode cov ntaub ntawv nrog cov khoom me me thiab thaj chaw siab tshwj xeeb muaj qhov ua tau zoo dua tus nqi. Ib qho ntxiv, cov electrode nto txwv (vim yog cov yeeb yaj kiab sei) thiab electrode conductivity tseem cuam tshuam tus nqi kev ua tau zoo.

Tib yam li lub sijhawm voj voog thiab nthuav dav, isotropic qhov tsis zoo electrode muaj ntau cov teeb meem kev nkag tsawg thiab tsawg diffustropic qauv. Feem ntau ntawm cov ntaub ntawv siv technology xws li granulation thiab txheej kom txhim kho lawv tus nqi kev ua tau zoo.

HCMILLING (GUILIN Hongcheng) yog cov chaw tsim khoom ntawm anode cov khoom sib tsoo zeb.HlmX seriesCov Khoom Siv Anode zoo kawg nkaus-fine ntsug zeb, HchCov Khoom Siv Anode Ultra-nplua zebThiab lwm graphite sib tsoo zeb ua los ntawm peb tau siv dav hauv kev tsim cov graphite anode cov khoom siv. Yog tias koj xav tau kev pab cuam tshuam, thov hu rau peb kom paub cov ntsiab lus ntawm cov cuab yeej thiab muab cov ntaub ntawv rau peb:

Raw Khoom Lub Npe

Khoom zoo (Mesh / μm)

muaj peev xwm (T / H)