Power safety: I understand how the diaphragm is escorting

2022/04/08

Author: Iflowpower –Portable Fais Fab Chaw Muag Khoom

Niaj hnub no, cov roj teeb lithium-ion tau dhau los ua 3C cov khoom lag luam (Computer, Kev Sib Txuas Lus, thiab ConsumeRelectronics) Cov khoom siv hluav taws xob ntau tshaj plaws, muaj peev xwm siab, ruaj khov thiab kev ua haujlwm tawm tau ua haujlwm ntev, ib txwm ua raws li cov roj teeb lithium-ion, thiab cov neeg siv khoom. Lithium-ion roj teeb cia siab. Cov khoom siv diaphragm yog tus yuam sij rau cov kev nrhiav thiab kev cia siab. Ua ntej, lub diaphragm nruj nreem muaj tsib ntu: cov khoom siv electrode zoo, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov diaphragm, cov khoom siv pob.

Lub separator yog hluav taws xob rwb thaiv tsev ntawm cov ncej zoo thiab qhov tsis zoo, thiab kev siv cov ion migration microporous channel yog cov khoom tseem ceeb uas lav kev ruaj ntseg ntawm lub roj teeb system thiab cuam tshuam rau kev ua haujlwm ntawm lub roj teeb. Txawm hais tias lub diaphragm tsis koom nrog cov tshuaj tiv thaiv electrode, nws cuam tshuam rau cov txheej txheem roj teeb kinetic, txiav txim siab them nqi thiab tawm, lub voj voog lub neej, thiab qhov loj ntawm lub roj teeb. Nyob rau hauv xyoo tas los no, cov kws tshawb fawb thiab cov tuam txhab cuam tshuam muaj kev txaus siab rau kev tshawb fawb thiab kev tsim cov khoom siv diaphragm thiab kev lag luam thev naus laus zis.

Raws li patented online decomposition system ntawm Suav Academy ntawm Sciences, Suav lithium-ion roj teeb, lub diaphragm yog lo lus tseem ceeb, thiab daim ntawv thov patent yog 2106 (raws li lub Cuaj Hlis 2015), uas tau tso cai rau account rau 51.19%, thiab 1078 patents. . Siv Suav polyethylene, diaphragm, polypropylene, diaphragm, ceramic, diaphragm, kev hloov kho, diaphragm, thiab muab 419, 415, 390, 272 yam khoom, thiab cov kev tso cai sib piv yog 44.

4%, 42.4%, 32.0, ntsig txog.

%, 33.1%, zoo patents yog 186,176, 125,90 feem. Discovery.

Nyob rau hauv xyoo tas los no, cov ntsiab lus kub ntawm kev tshawb fawb thiab kev tsim kho thiab kev siv technology, kev ruaj ntseg siab, cov ntaub ntawv tshiab, ceramics, txheej thiab kev txhim kho ntawm wettability, thiab lwm yam nyob rau tib lub sijhawm, nyob rau hauv kaum xyoo dhau los, tshwj xeeb tshaj yog nyob rau hauv tsib lub xyoos dhau los. , daim ntawv thov patent cuam tshuam nrog cov faus daim nyias nyias yog nrawm. Qhov thib ob, lub diaphragm ua haujlwm ntawm lithium hluav taws xob cais yog nyob rau hauv Isoonic Roj teeb.

Kev ua haujlwm yog nyob rau hauv ob yam: Ua ntej, muab kev ruaj ntseg rau lub roj teeb. Cov khoom siv diaphragm ua ntej tsis muaj cov khoom zoo insulating, thiab luv luv Circuit Court uas tshwm sim thaum qhov zoo thiab tsis zoo electrode raug rau lub luv luv Circuit Court los yog burr, hais, thiab dendritic pos. Yog li ntawd, lub diaphragm muaj ib tug stretch, puncture zog, tsis yooj yim rau tsim kua muag.

Thiab hauv paus tswj kev ruaj ntseg ntawm qhov loj me nyob rau hauv qhov kub kub ntawm qhov tawg, thiab qhov loj ntawm qhov luv luv Circuit Court thiab thermal tawm ntawm lub roj teeb yuav tsis yaj. Qhov thib ob yog muab lwm lub roj teeb kom paub txog kev them nqi thiab kev tso tawm, lub micro-qhov channel ntawm qhov kev ua tau zoo. Yog li ntawd, lub diaphragm tsis muaj cov yeeb yaj kiab uas muaj qhov porosity ntau dua thiab qhov nruab nrab microporous faib.

Cov khoom siv nws tus kheej yog cov yam ntxwv thiab kev tsim cov yeeb yaj kiab ntawm cov yeeb yaj kiab tsim cov kev tsiv teb tsaws ntawm lithium ions hauv lub roj teeb, thiab cov kev ua haujlwm ntawm lub roj teeb yog ionic conductivity. Thib peb, cov nyhuv ntawm lithium hluav taws xob sib cais los muab kev nyab xeeb rau lub roj teeb yog cuam tshuam los ntawm cov khoom siv hauv cov khoom siv diaphragm. Kev nyab xeeb yuav tsum tau txiav txim siab tias lub diaphragm muaj qhov zoo tshaj plaws rwb thaiv tsev, mechanical zog, tshuaj stability, electrochemical stability, thiab thermal stability.

Yog li ntawd, cov khoom siv ntawm cov khoom siv ntawm cov diaphragm tuaj yeem tsuas yog ua tau zoo los ntawm cov rwb thaiv tsev, thiab muaj cov khoom tsim cov yeeb yaj kiab zoo, cov khoom siv kho tshuab, thiab cov khoom siv polymers yooj yim thiab lawv cov khoom sib xyaw. Tam sim no, cov ntaub ntawv tseem ceeb ntawm kev lag luam yog polypropylene microporous membranes thiab polyethylene microporous membranes, tsim cov ntaub ntawv xws li non-woven ceramic particles composite film, thiab cov ntaub ntawv xws li polyimide (PI), thiab lwm yam. Lub roj teeb ntawm lub roj teeb yog ua tiav los ntawm kev tsim cov khoom siv. diaphragm thiab microporous qauv yam ntxwv.

Kuj tseem muaj qee yam khoom siv nws tus kheej muaj txiaj ntsig zoo uas cuam tshuam rau qhov kev ua tau zoo no. Cov kev cai rau lithium ions tau txiav txim siab tias lub diaphragm muaj qhov zoo wettability rau cov electrolyte, vim nws tsuas yog nqus tau thiab khaws cov khoom tsim nyog ntawm electrolyte nyob rau hauv lub diaphragm pore qauv kom ua tiav cov ionized migration thiab ib txwm ua haujlwm, thiab cov electrode yog polarized heev. tshwm sim.

Lub microstructure ntawm lub diaphragm, xws li aperture thiab nws tis, porosity, huab cua passage (Gurley tus nqi), seem stability, thiab lwm yam tseem ceeb muaj feem xyuam rau ion conductivity, ho cuam tshuam cov kev ua tau zoo ntawm lub roj teeb. Nrog rau kev txhim kho txuas ntxiv ntawm kev nyab xeeb ntawm roj teeb ua tib zoo saib xyuas cov roj teeb kev nyab xeeb, cov kev xav tau ntawm cov tuam txhab roj teeb ntawm kev nyab xeeb diaphragm txuas ntxiv mus ntxiv, thiab hauv kev siv qee cov qauv roj teeb tshwj xeeb, qhov xav tau ntawm cov cua sov shrinkage piv ntawm cov khoom siv diaphragm tau nce mus rau 180 ¡ ã C rau 60 min. Tom qab shrinking tsawg dua 2%, qee lub tuam txhab roj teeb txawv teb chaws txawm tias muaj qhov ruaj khov diaphragm ntawm 250-300c qhov kub thiab txias qhov ntev.

Lub thickness ntawm lub diaphragm yog ntawm chav kawm, lub thinner yog, qhov zoo dua qhov kev nyab xeeb. Hais txog lub roj teeb winding, lub thinner lub thickness ntawm lub diaphragm, qhov tso zis ntawm lub roj teeb, tuaj yeem tawm ntau qhov chaw rau cov khoom siv electrode, thiab txo cov misalignment ntawm tus ncej winding txheej txheem. Txawm li cas los xij, yog tias tsuas yog ib qho flaps hais txog thickness, cov neeg kho tshuab kev ua tau zoo yuav raug cuam tshuam, nws muaj kev cuam tshuam ntau rau cov khoom loj, polar burrs thiab dendrites, uas ua rau cov roj teeb tsis muaj kev nyab xeeb.

Muaj tsawg ntxhib ntawm lub laminated roj teeb, uas tsis siab rau cov thickness yuav tsum tau. Nrog rau ntau haiv neeg ntawm lithium-ion roj teeb cov ntaub ntawv, kev siv, muaj peev xwm, zoo, cov kev xav tau ntawm diaphragm kev ua tau zoo thiab kev qhia tau kuj yog chartered, thiab lub tuam txhab ua kev nkag siab ntawm lub diaphragm kuj tseem tob dua. Txawm li cas los xij, tsis muaj cov diaphragm zoo li no hauv txhua qhov kev ntsuas.

Yog li ntawd, thaum xaiv lub diaphragm rau lub roj teeb, nws yuav tsum tau tsom, thiab qhov kev ua tau zoo yog qhov tseem ceeb, uas yog kev nyab xeeb, kev ua haujlwm ntawm lub zog lossis lub neej ntawm lub neej? Raws li lub roj teeb tsim thiab siv qeb, hom siv kuj txawv. Cov lus ceeb toom ntsig txog ntawm ntau yam kev ntsuas ntawm diaphragms. Lithium hluav taws xob diaphragm kev ua tau zoo thiab ntau yam kev lag luam membrane kev ua haujlwm tsis zoo 4, lithium roj teeb compact membranes yog npaj tsim, thiab cov kev hloov kho saum npoo ntawm polyolefin yog ntxiv los yog sib xyaw cov yam ntxwv ntawm cov yam ntxwv xws li ib txheej polyolefin membrane, thiab kub tsis kam.

Ib lub diaphragm sib xyaw uas muaj kev ua tau zoo tshaj plaws yog qhov kev tshawb fawb tseem ceeb ntawm kev ua haujlwm siab sib cais. Tam sim no feem ntau siv cov txheej txheem xws li txheej txheej, dip txheej, tshuaj tsuag, sib xyaw, thiab lwm yam. Muaj cov lus tshawb fawb los txheej cov khoom siv polyaryl ester ntawm PE diaphragm los ua ib qho sib xyaw diaphragm ntawm cov ntxeem tau polymer precipitate.

Txij li cov polyarylate muaj cov cua kub zoo, qhov sib xyaw diaphragm melting kub yog nce mus rau ntau dua 180 º C. Los ntawm dip txheej, polyaminer yog siv rau PE diaphragm, thiab cov tau hloov kho daim nyias nyias muaj cov adsorption electrolyte ntau dua, kev txhim kho zoo. lub siab magnification voj voog kev ua tau zoo ntawm lub diaphragm. Cov polyolefin diaphragm tau hloov kho siv cov sib tov ntawm PVDF / SiO2, thiab cov diaphragm sib xyaw ua ke tau muab rau cov niam txiv-e-kua ua haujlwm ntawm PVDF thiab qhov kub tsis kam ntawm Si02, thiab cov roj teeb ionic tau mus txog ntawm 2C tso tawm magnification, thiab nws cov nqi thiab tso tawm efficiency mus txog 94%.

2, polyolefin-ceramic composite diaphragm polyolefin organic membrane thiab muaj cov khoom siv kho tshuab zoo dua thiab tus nqi qis, tab sis tsis muaj peev xwm ntawm thermal stability, niam txiv, thiab lwm yam, yog li cov roj teeb diaphragms yuav tsum tau ua kom zoo dua qub. Yog li ntawd, cov txheej txheem uas cov zaj duab xis sib xyaw yog tsim los ntawm txheej inorganic ceramic hais rau ntawm polyolefin organic diaphragm.

Txawm hais tias qhov cuam tshuam ntawm cov txheej txheem ceramic muab cov roj teeb kev ua tau zoo, kev tshawb fawb ntau dua thiab kev ntsuam xyuas tuaj yeem ua rau cov lus xaus kawg, tab sis cov thev naus laus zis no tau tab tom yuav nyob hauv ntau lub tuam txhab diaphragm thiab cov tuam txhab roj teeb, thiab tau nce qib. Nyob rau hauv cov ntaub ntawv polymer ceramic composite zaj duab xis, cov khoom siv polyolefin organic microporous membrane khoom siv tau yooj yim kom tau raws li qhov yuav tsum tau ua ntawm cov txheej txheem roj teeb. Inorganic ceramic particles tsim ib pob txha pob txha nyob rau hauv cov zaj duab xis sib xyaw, thiab cov lus ceeb toom cais shrinks los yog melts nyob rau hauv kub kub los txhim kho roj teeb kev nyab xeeb.

Cov nplaum nplaum muaj cov nyhuv nruj ntawm cov khoom saum npoo, pore qauv, txhua yam muaj zog ntawm cov zaj duab xis ceramic. Lub polymer-ceramic composite zaj duab xis tsub kom lub thermal stability thiab electrolyte noo noo nqus ntawm polyelectric separator rau ib tug tej yam, tab sis lub siab tshaj plaws teeb meem nyob rau hauv xws li kev yees duab yog hais tias lub ceramic theem tsis muaj zog thiab cov organic ua ke tsis muaj zog. Ceramic ntog tawm (hmoov tshwm sim.

Los ntawm cov kev cai tsim nyog ntawm tus nqi ntawm ib qho twg, cov inorganic ceramic hais yog prejected ua ntej nyob rau hauv cov zaj duab xis-forming tov los ntawm in-site composite cov txheej txheem, thiab cov txheej txheem txheej txheem ntawm lub diaphragm los ntawm ntub ob-txoj kev stretching cov tswv yim los yog electrospinning txoj kev yuav ua tau. alleviated rau qee yam. Qhov no tshwm sim. Polyolefin daim nyias nyias yog cov khoom sib xyaw diaphragm, thiab polyolefin daim nyias nyias yog yooj yim ncab mus rau hauv ib lub qhov uas cov polyolefin daim nyias nyias yog yooj yim ncab mus rau hauv ib lub qhov, thiab kev ruaj ntseg ntawm lub separator yog zoo dua, thiab cov yam ntxwv xws li cov separator yog zoo dua.

Ua ntej, nws tseem yuav tuav lub lag luam tseem ceeb. 3, cov khoom siv tshiab tau muab faib ua polyolefin hloov cov khoom sib cais thiab cov khoom siv tshiab diaphragms raws li cov khoom siv. Ntawm lawv, cov ntaub ntawv tshiab yog nruj kom suav nrog fluoropolymer diaphragm, cellulose diaphragm, polyimide (PI) diaphragm, polyester (PET) hom membrane thiab lwm yam polymer ceramic composite diaphragm, thiab lwm yam.

(1) Cov fluoropolymer diaphragm nruj yog hais txog PVDF diaphragm khoom. Los ntawm lub kaum sab xis ntawm cov khoom, nws tuaj yeem muab faib ua peb pawg ntawm tib lub polymers, ntau-polymers thiab organic inorganic complexes. Cov feem ntau siv ib leeg muaj xws li PVDF, P (VDF-HFP) (polyvinylidene fluoride-hexafluoropropene> thiab P (VDF-TRFE) (polyvinylidene fluoride).

Piv nrog rau cov khoom siv polyolefin diaphragm, cov khoom siv fluoropolymer diaphragm muaj cov polarity muaj zog dua thiab siab dua dielectric tas li, uas ua rau muaj txiaj ntsig zoo rau niam txiv ntawm cov khoom sib cais, thiab txhawb nqa ionization ntawm lithium ntsev. Tsis tas li ntawd, txoj kev molding ntawm cov ntaub ntawv no muaj ntau haiv neeg, xws li txoj kev casting, electrospun, kub nias, thiab lwm yam., uas yog conducive rau kev tswj porosity.

(2) Lub roj teeb kev ua haujlwm ntawm cellulose diaphragm yog piv rau polyolefin diaphragm, tab sis nws cov peev txheej yog nplua nuj thiab txuas ntxiv dua tshiab. Nyob rau tib lub sijhawm, qhov ntsuas kub ntawm cov khoom siv cellulosic yog siab (270c), thiab thermal stability yog qhov tseeb dua li cov khoom siv polyolefin. Kev them nqi sai thiab kev tso tawm ntawm cov ntaub ntawv cellulose hauv kev siv thaum ntxov yog qhov zoo heev, tab sis muaj qhov tshwm sim ntawm tus kheej tawm, thiab lub voj voog kev ua haujlwm tsis ruaj khov, thiab cov roj teeb tsis txaus.

Cov tub ntxhais kawm ntawv muaj cov cellulose uas tsis yog-woven li substrate, P (VDF-HFP) yog txheej, thiab cov cellulose / PVDF composite diaphragm yog ua, thiab cov kua yog txawv rau cov pa PP zaj duab xis. Lub thermal stability yog loj. txhawb.

(3) Cov ntsiab lus ntawm cov tub ntxhais ntawm cov txheej txheem tshiab diaphragm yog ob: Ua ntej, cov khoom siv tshiab, qhov thib ob yog cov txheej txheem ntawm kev lag luam kev lag luam. Tawm ntawm txoj kev ua tau zoo, cov ntaub ntawv zoo tsis tuaj yeem yog cov khoom siv dav dav. Cov txheej txheem ntawm cov pa kev npaj ntawm polyolefin diaphragms yog qhuav thiab ntub.

Txawm li cas los xij, polyolefin separator yog tsim nyob rau hauv ib qho kev taw qhia nyias kom ua tau raws li qhov yuav tsum tau ua ntawm 3C lithium ion roj teeb, uas yog qhov tseem ceeb nkag mus rau kev txhim kho kev ua haujlwm ntawm diaphragm. Txoj kev npaj txheeb ze, txheej txheej txheej thiab cov khoom siv ntawm polyolefin hloov diaphragm yog cov paub tab heev. Nws yog siv los ua cov txheej txheem hloov kho ntawm polyolefin diaphragm, uas tuaj yeem txhim kho cov cua sov ntawm cov ntaub ntawv polyolefin thiab cov wettability ntawm cov electrolyte.

Tam sim no, ntau lub chaw tshawb fawb thiab cov chaw tsim khoom hauv tsev thiab txawv teb chaws muaj kev tshawb fawb thiab kev loj hlob tsom mus rau ceramic txheej diaphragms. Hauv cov ntsiab lus, nrog kev nce ntawm cov khoom siv diaphragm, cov txheej txheem kev npaj tau nce zuj zus, Kuv ntseeg tias nyob rau hauv qhov tsis txaus, kev ruaj ntseg siab ntawm kev xav tau, lub zog kub resistant tshiab diaphragm yuav ua tiav, thiab kev cuam tshuam deb ntawm peb lub neej. .

TIV TAUJ PEB
Tsuas qhia rau peb cov kev xav tau, peb tuaj yeem ua ntau tshaj qhov koj xav tau.
Xa koj qhov kev nug
Chat with Us

Xa koj qhov kev nug

Xaiv hom lus sib txawv
English
العربية
Deutsch
Español
français
italiano
日本語
한국어
Português
русский
简体中文
繁體中文
Afrikaans
አማርኛ
Azərbaycan
Беларуская
български
বাংলা
Bosanski
Català
Sugbuanon
Corsu
čeština
Cymraeg
dansk
Ελληνικά
Esperanto
Eesti
Euskara
فارسی
Suomi
Frysk
Gaeilgenah
Gàidhlig
Galego
ગુજરાતી
Hausa
Ōlelo Hawaiʻi
हिन्दी
Hmong
Hrvatski
Kreyòl ayisyen
Magyar
հայերեն
bahasa Indonesia
Igbo
Íslenska
עִברִית
Basa Jawa
ქართველი
Қазақ Тілі
ខ្មែរ
ಕನ್ನಡ
Kurdî (Kurmancî)
Кыргызча
Latin
Lëtzebuergesch
ລາວ
lietuvių
latviešu valoda‎
Malagasy
Maori
Македонски
മലയാളം
Монгол
मराठी
Bahasa Melayu
Maltese
ဗမာ
नेपाली
Nederlands
norsk
Chicheŵa
ਪੰਜਾਬੀ
Polski
پښتو
Română
سنڌي
සිංහල
Slovenčina
Slovenščina
Faasamoa
Shona
Af Soomaali
Shqip
Српски
Sesotho
Sundanese
svenska
Kiswahili
தமிழ்
తెలుగు
Точики
ภาษาไทย
Pilipino
Türkçe
Українська
اردو
O'zbek
Tiếng Việt
Xhosa
יידיש
èdè Yorùbá
Zulu
Cov lus tam sim no:Hmong