Ntlha ea pele, molao-motheo oa ho kopanya
Ka ho susumetsa li-blades le foreimi e pota-potileng ho potoloha, ho emisoa ha mechine ho hlahisoa le ho hlokomeloa, 'me ho fetisoa ha boima pakeng tsa mokelikeli le mekhahlelo e tiileng hoa ntlafatsoa. Ho ferekana ha metsi a tiileng hangata ho arotsoe likarolo tse latelang: (1) ho fanyeha ha likaroloana tse tiileng; (2) ho emisoa ha likaroloana tse lutseng; (3) ho kenngoa ha likaroloana tse emisitsoeng ka har’a mokelikeli; (4) sebelisa pakeng tsa likaroloana le pakeng tsa likaroloana le paddles Matla a etsa hore phatsa agglomerates ho qhalakanya kapa ho laola phatsa boholo; (5) phetiso ea bongata lipakeng tsa mokelikeli le tse tiileng.
Ea bobeli, phello e susumetsang
Ts'ebetso ea ho kopanya e hlile e kopanya likarolo tse sa tšoaneng tsa slurry hammoho ka karolelano e tloaelehileng ho lokisetsa slurry ho etsa hore ho be le seaparo se tšoanang le ho netefatsa ho lumellana ha likotoana tsa palo. Metsoako ka kakaretso e na le lits'ebetso tse hlano, e leng: ho phekola pele, ho kopanya, ho kolobisa, ho hasana le ho phalla ha thepa e tala.
Ea boraro, li-parameter tsa slurry
1, viscosity:
Ho hanyetsa ha mokelikeli ho phalla ho hlalosoa e le tekanyo ea khatello ea ho kuta e hlokahalang ka sefofane sa 25 px 2 ha mokelikeli o phalla ka tekanyo ea 25 px / s, e bitsoang kinematic viscosity, Pa.s.
Viscosity ke thepa ea maro. Ha mokelikeli o phalla ka phaepheng, ho na le linaha tse tharo tsa phallo ea laminar, phallo ea nakoana, le phallo ea moferefere. Libaka tsena tse tharo tsa phallo le tsona li teng lisebelisoa tse susumetsang, 'me e' ngoe ea lintlha tse ka sehloohong tse khethollang linaha tsena ke viscosity ea mokelikeli.
Nakong ea ts'ebetso ea ts'ebetso, hangata ho nkoa hore viscosity e ka tlaase ho 5 Pa.s ke mokelikeli o tlaase oa viscosity, o kang: metsi, oli ea castor, tsoekere, jeme, mahe a linotši, oli ea lubricating, emulsion e tlaase ea viscosity, joalo-joalo; 5-50 Pas ke mokelikeli oa viscosity o mahareng Mohlala: enke, sesepa sa meno, joalo-joalo; 50-500 Pas ke maro a phahameng a viscosity, joalo ka chewing gum, plastisol, mafura a tiileng, joalo-joalo; ho feta 500 Pa ke maro a phahameng a viscosity joalo ka: metsoako ea rabara, melts ea polasetiki, silika ea tlhaho joalo-joalo.
2, boholo ba karolo ea D50:
Bophahamo ba boholo ba karoloana ea 50% ho ea ka molumo oa likaroloana tsa seretse
3, litaba tse tiileng:
Peresente ea taba e tiileng ho slurry, karo-karolelano ea theory ea litaba tse tiileng e ka tlase ho litaba tse tiileng tsa thomello.
Ea bone, tekanyo ea liphello tse tsoakaneng
Mokhoa oa ho bona ho ts'oana ha ho kopanya le ho kopanngoa ha sistimi e emisitsoeng ea mokelikeli o tiileng:
1, tekanyo e tobileng
1) Mokhoa oa Viscosity: sampole ho tsoa maemong a fapaneng a sistimi, ho lekanya viscosity ea slurry ka viscometer; kheloha e nyenyane, ho kopanya ho tšoana ho feta;
2) Mokhoa oa likarolo:
A, sampling ho tloha maemong a fapaneng a tsamaiso, ho sebelisa scraper ea boholo ba phatsa ho shebella boholo ba karoloana ea slurry; ha boholo ba likaroloana bo le haufi le boholo ba phofo e tala, ho kopanya ho tšoana ho feta;
B, ho etsa sampole ho tsoa maemong a fapaneng a sistimi, ho sebelisa sesebelisoa sa laser diffraction particle size tester ho bona boholo ba karoloana ea slurry; ha ho ntse ho tloaelehile kabo ea boholo ba likaroloana, likaroloana tse nyenyane tse kholoanyane, ho kopanya ho tšoana ho feta;
3) Mokhoa o ikhethileng oa matla a khoheli: ho etsa sampole ho tsoa maemong a fapaneng a sistimi, ho lekanya boima ba slurry, ho kheloha ho nyane, ho kopanya ho tšoana ho feta.
2. Tekanyo e sa tobang
1) Mokhoa o tiileng oa dikahare (macroscopic): Sampling ho tloha maemong a fapaneng a tsamaiso, ka mor'a mocheso o loketseng le nako ea ho baka, ho lekanya boima ba karolo e tiileng, ho kheloha ho fokolang, ho kopanya ho tšoana ho feta;
2) SEM / EPMA (microscopic): sampole e tsoang maemong a fapaneng a sistimi, e sebetsa ho substrate, e omeletseng, 'me e shebe likaroloana kapa likarolo tsa filimi ka mor'a ho omisa slurry ka SEM (electron microscope) / EPMA (electron probe) Distribution ; (lintho tse tiileng hangata ke lisebelisoa tsa conductor)
Bohlano, ts'ebetso e tsosang ea anode
Conductive carbon black: E sebedisoa joalo ka ntho e tsamaisang. Mosebetsi: Ho hokahanya likaroloana tse kholo tse sebetsang ho etsa hore conductivity e be ntle.
Copolymer latex - SBR (rabara ea styrene butadiene): e sebelisoang e le tlamahano. Lebitso la lik'hemik'hale: Styrene-Butadiene copolymer latex (polystyrene butadiene latex), latex e qhibilihang ka metsing, lintho tse tiileng 48~50%, PH 4 ~ 7, ntlha ea leqhoa -5~0 °C, ntlha e belang e ka bang 100 °C, mocheso oa polokelo 5 ~ 35 ° C. SBR ke anionic polymer dispersion e nang le botsitso bo botle ba mochini le ts'ebetso, 'me e na le matla a phahameng a tlamo.
Sodium carboxymethyl cellulose (CMC) - (carboxymethyl cellulose sodium): e sebelisoa e le setenya le se tsitsitseng. Ponahalo ke phofo e tšoeu kapa e mosehla ea floc kapa phofo e tšoeu, e sa nkheng, e sa latsoeheng, e se nang chefo; qhibilihang ka metsing a batang kapa metsing a chesang, ho etsa gel, tharollo ha e nke lehlakore kapa e na le alkaline hanyenyane, ha e qhibilihe ka ethanol, ether, Sehlahisoa sa tlhaho se kang isopropyl joala kapa acetone se qhibiliha ka 60% ea tharollo ea metsi ea ethanol kapa acetone. E na le hygroscopic, e tsitsitseng ho khanya le mocheso, viscosity e fokotseha ka mocheso o ntseng o eketseha, tharollo e tsitsitse ho pH 2 ho ea ho 10, PH e ka tlaase ho 2, solids e putsoa, 'me pH e phahame ho feta 10. Mocheso oa phetoho ea mebala e ne e le 227 ° C, mocheso oa carbonization e ne e le 252 ° C, 'me tsitsipano ea holim'a metsi a 2% e ne e le 71 nm / n.
Ts'ebetso ea ho hlohlelletsa le ho roala ha anode e tjena:
Ea botšelela, ts'ebetso ea ho hlohlelletsa cathode
Conductive carbon black: E sebedisoa joalo ka ntho e tsamaisang. Mosebetsi: Ho hokahanya likaroloana tse kholo tse sebetsang ho etsa hore conductivity e be ntle.
NMP (N-methylpyrrolidone): e sebedisoang joalo ka mokelikeli o susumetsang. Lebitso la lik'hemik'hale: N-Methyl-2-polyrrolidone, foromo ea molek'hule: C5H9NO. N-methylpyrrolidone ke mokelikeli o monko o monate oa ammonia hanyenyane o kopantsoeng le metsi ka tekanyo leha e le efe 'me o batla o tsoakane ka ho feletseng le metsoako eohle (ethanol, acetaldehyde, ketone, aromatics hydrocarbon, joalo-joalo). Sebaka se belang sa 204 ° C, ntlha e khanyang ea 95 ° C. NMP ke polar aprotic solvent e nang le chefo e tlaase, ntlha e belang e phahameng, ho qhibiliha ka mokhoa o babatsehang, khetho le botsitso. E sebelisoa haholo ho ntšitsoeng ha aromatics; tlhoekiso ea acetylene, olefin, diolefin. The solvent e sebelisetsoang polymer le medium for polymerization hajoale e sebelisoa k'hamphaning ea rona bakeng sa NMP-002-02, ka bohloeki ba > 99.8%, matla a khoheli a itseng a 1.025 ~ 1.040, le metsi a <0.005% (500ppm) ).
PVDF (polyvinylidene fluoride): e sebedisoang joalo ka sekontiri le se tlamang. Polima e tšoeu ea phofshoana ea kristale e nang le sekhahla se lekanyelitsoeng sa 1.75 ho isa ho 1.78. E na le khanyetso e ntle haholo ea UV le khanyetso ea boemo ba leholimo, 'me filimi ea eona ha e thata ebile ha e robehe ka mor'a hore e behoe ka ntle ka lilemo tse mashome a mabeli. Thepa ea dielectric ea polyvinylidene fluoride e totobetse, "dielectric constant" e ka holimo ho 6-8 (MHz ~ 60Hz), 'me tangent ea tahlehelo ea dielectric le eona e kholo, e ka bang 0.02 ~ 0.2,' me ho hanyetsa ha molumo ho fokotseha hanyenyane, e leng 2 ×1014ΩNaN Mocheso oa eona oa nako e telele oa tšebeliso ke -40 ° C ~ +150 ° C, sebakeng sena sa mocheso, polymer e na le thepa e ntle ea mochine. E na le mocheso oa phetoho oa khalase oa -39 ° C, mocheso oa embrittlement oa -62 ° C kapa ka tlase, sebaka se qhibilihang sa kristale se ka bang 170 ° C, le mocheso oa ho bola oa mocheso oa 316 ° C kapa ho feta.
Mokhoa oa ho hlohlelletsa le ho roala ha cathode:
7. Litšobotsi tsa viscosity tsa slurry
1. Curve ea slurry viscosity ka nako e susumetsang
Ha nako e susumetsang e ntse e atolosoa, viscosity ea slurry e atisa ho ba boleng bo tsitsitseng ntle le ho fetoha (ho ka boleloa hore slurry e qhalakantsoe ka mokhoa o ts'oanang).
2. Curve ea slurry viscosity le mocheso
Ha mocheso o phahame, o theola viscosity ea slurry, 'me viscosity e atisa ho ba le boleng bo tsitsitseng ha e fihla mocheso o itseng.
3. Curve ea litaba tse tiileng tsa seretse sa tanka ea phetisetso ka nako
Ka mor'a hore slurry e tsosoe, e fetisetsoa ka tanka ea phetisetso bakeng sa ho roala Coater. Tanka ea phetisetso e hlohlelletsoa ho potoloha: 25Hz (740RPM), phetohelo: 35Hz (35RPM) ho netefatsa hore litekanyo tsa slurry li tsitsitse ebile li ke ke tsa fetoha, ho kenyelletsa le makhasi. Mocheso oa lintho tse bonahalang, viscosity le litaba tse tiileng ho netefatsa ho ts'oana ha seaparo sa slurry.
4, viscosity ea slurry e nang le nako ea nako
Nako ea poso: Oct-28-2019