Poleiti ea bipolar ea graphite ke eng?

Poleiti ea ho feto-fetoha ha graphiteke karolo ea bohlokoa e sebelisoang lisebelisoa tsa electrochemical tse kang lisele tsa mafura le li-electrolyzer, hangata li entsoe ka thepa ea graphite e hloekileng haholo. E bapala karolo ea bohlokoa liketsong tsa electrochemical, haholo-holo e sebelisoang ho tsamaisa motlakase, ho aba likhase tsa karabelo (joalo ka haeterojene le oksijene), le ho arola libaka tsa karabelo. Hobane mahlakore a eona a mabeli a ikopanya le anode le cathode tsa lisele tse le 'ngoe tse haufi, a etsa sebopeho sa "bipolar" (lehlakore le leng ke tšimo ea phallo ea anode 'me lehlakore le leng ke tšimo ea phallo ea cathode), e bitsoa poleiti ea bipolar.

Sebopeho sa poleiti ea bipolar ea graphite

Hangata lipoleiti tsa graphite bipolar li na le likarolo tse latelang:
1. Sebaka sa Phallo: Bokaholimo ba poleiti ea bipolar bo entsoe ka sebopeho se rarahaneng sa tšimo ea phallo ho aba khase ea karabelo ka ho lekana (joalo ka haeterojene, oksijene kapa moea) le ho ntša metsi a hlahisoang.

2. Lera le tsamaisang motlakase: Thepa ea graphite ka boeona e na le conductivity e ntle 'me e ka tsamaisa motlakase ka katleho.

3. Sebaka sa ho koala: Mathoko a lipoleiti tsa bipolar hangata a entsoe ka meaho e tiisang ho thibela ho dutla ha khase le ho kenella ha metsi.

4. Dikanale tsa ho phodisa (ha ho hlokahale): Lits'ebetsong tse ling tse sebetsang hantle, liteishene tsa ho pholisa li ka etsoa ka har'a lipoleiti tsa bipolar ho laola mocheso o sebetsang oa lisebelisoa.

Mesebetsi ea lipoleiti tsa bipolar tsa graphite

1. Mosebetsi o tsamaisang motlakase:

Jwalo ka electrode ya disebediswa tsa electrochemical, poleiti ya bipolar e ikarabella bakeng sa ho bokella le ho tsamaisa motlakase ho netefatsa tlhahiso e sebetsang hantle ya matla a motlakase.
2. Kabo ea khase:

Ka moralo oa kanale ea phallo, poleiti ea bipolar e aba khase ea karabelo ka ho lekana ho lera la catalyst, e khothalletsa karabelo ea electrochemical.
3. Ho arola libaka tsa karabelo:

Ka seleng ea mafura kapa electrolyzer, lipoleiti tsa bipolar li arola libaka tsa anode le cathode, li thibela likhase ho kopana.
4. Ho qhalana ha mocheso le ho ntsha metsi:

Lipoleiti tsa bipolar li thusa ho laola mocheso o sebetsang oa lisebelisoa le ho ntša metsi kapa lihlahisoa tse ling tse hlahisoang ke karabelo.
5. Tšehetso ea mechini:

Lipoleiti tsa bipolar li fana ka tšehetso ea sebopeho bakeng sa electrode ea lera, ho netefatsa botsitso le ho tšoarella ha lisebelisoa.

Ke hobane'ng ha u khetha graphite e le thepa ea poleiti ea bipolar?

Thepa ea thepa ea lipoleiti tsa bipolar tsa graphite
●Ho khanna ho phahameng:

Resistivity e kgolo ya graphite e tlase ho 10-15μΩ.cm (e betere ho feta 100-200 μΩ·cm yapoleiti ea tšepe ea bipolar).

●Khanyetso ea ts'enyeho:

Hoo e ka bang ha ho na ts'enyeho tikolohong ea asiti ea lisele tsa mafura (pH 2-3), 'me bophelo ba tšebeletso bo ka fihla lihora tse fetang 20,000.

●E bobebe:

Botenya ba 'mele bo ka ba 1.8 g/cm3 (7-8 g/cm3 bakeng sa poleiti ea bipolar ea tšepe), e leng molemo bakeng sa ho fokotsa boima ba 'mele lits'ebetsong tsa likoloi.

●Thepa ea thibelo ea khase:

Sebopeho se teteaneng sa graphite se ka thibela ho kenella ha haeterojene ka katleho mme se na le polokeho e phahameng.

●Ho sebetsana habonolo:

Thepa ea graphite e bonolo ho e sebetsana 'me e ka iketsetsa meralo le boholo ba kanale e rarahaneng ea phallo ho latela litlhoko.

Lipoleiti tsa bipolar tsa graphite li etsoa joang?

Ts'ebetso ea tlhahiso eapoleiti ea bipolar ea graphitee kenyeletsa tse latelang:
●Tokisetso ea thepa e tala:

Sebelisa graphite ea tlhaho e hloekileng haholo (>99.9%) kapa phofo ea graphite ea maiketsetso.

Kenya resin (joalo ka resin ea phenolic) e le sehokelo ho eketsa matla a mechini.

●Ho Hatella ho Bopa:

Thepa e tsoakiloeng e kenngoa ka har'a hlobo ebe e hatelloa tlas'a mocheso o phahameng (200-300℃) le khatello e phahameng (>100 MPa).

●Kalafo ea graphitization:

Ho futhumatsa ho fihlela ho 2500-3000℃ sepakapakeng se sa sebetseng ho etsa hore dielemente tse seng tsa khabone di foforehe mme di thehe sebopeho se teteaneng sa graphite.

●Ts'ebetso ea Runner:

Sebelisa mechine ea CNC kapa laser ho betla likanale tsa serpentine, tse bapileng kapa tse kopaneng (botebo ba 0.5-1 mm).

●Kalafo ea holim'a metsi:

Ho tlatswa ka resin kapa tšepe (joalo ka khauta, titanium) ho fokotsa ho hanyetsa ho kopana le ho ntlafatsa ho hanyetsa ho tsofala.

Tšebeliso ea lipoleiti tsa bipolar tsa graphite ke efe?

1. Sele ea Mafura:

- Sele ea mafura ea lera la phapanyetsano ea proton (PEMFC)

- Sele ea Mafura ea Oxide e Tiileng (SOFC)

- Sele ea Mafura ea Methanol e Otlolohileng (DMFC)

2. Sesebelisoa sa ho lekanya motlakase:

- Tlhahiso ea haedrojene ka electrolysis ea metsi

- Indasteri ea Chlor-alkali

3. Sistimi ea polokelo ea matla:

- Betri ea phallo

4. Indasteri ea Lik'hemik'hale:

- Sesebelisoa sa ho Sebetsa ka Motlakase

5. Lipatlisiso tsa laboratori:

- Ntlafatso le liteko tsa mohlala oa lisele tsa mafura le li-electrolyzer

Akaretsa

Lipoleiti tsa graphite bipolarke likarolo tsa mantlha tsa lisebelisoa tsa electrochemical tse kang lisele tsa mafura le li-electrolyzer, 'me li na le mesebetsi e mengata e kang ho tsamaisa motlakase, kabo ea khase, le karohano ea libaka tsa karabelo. Ka nts'etsopele ea theknoloji ea matla a hloekileng, lipoleiti tsa bipolar tsa graphite li sebelisoa ka ho eketsehileng likoloing tse ncha tsa matla, litsamaisong tsa polokelo ea matla, tlhahiso ea lik'hemik'hale tsa haedrojene le masimong a mang.