Yintoni i-graphite bipolar plate?

Ipleyiti ye-Graphite bipolarlicandelo eliphambili elisetyenziswa kwizixhobo ze-electrochemical ezifana neeseli zepetroli kunye nee-electrolyzers, ezidla ngokwenziwa ngezinto ze-graphite ezicocekileyo kakhulu. Idlala indima ebalulekileyo kwiimpendulo ze-electrochemical, ezisetyenziswa kakhulu ukuqhuba umbane, ukusasaza iigesi ze-reaction (ezifana ne-hydrogen kunye ne-oxygen), kunye neendawo ezahlulahlulayo ze-reaction. Ngenxa yokuba amacala ayo amabini aqhagamshelana ne-anode kunye ne-cathode yeeseli ezikufutshane, okwenza isakhiwo "se-bipolar" (elinye icala yintsimi ye-anode flow kwaye elinye icala yintsimi ye-cathode flow), ibizwa ngokuba yi-bipolar plate.

Ulwakhiwo lweplate ye-graphite bipolar

Iiplate ze-graphite bipolar zihlala ziquka ezi ndawo zilandelayo:
1. Intsimi yoMsinga: Umphezulu wepleyiti ye-bipolar uyilwe ngesakhiwo sentsimi yokuhamba kwamanzi esintsonkothileyo ukuze isasaze ngokulinganayo igesi yokusabela (njenge-hydrogen, i-oxygen okanye umoya) kwaye ikhuphe amanzi avelisiweyo.

2. Umaleko oqhubayoIzinto zeGraphite ngokwazo zinomoya oqhuba kakuhle kwaye zinokuqhuba umbane ngokufanelekileyo.

3. Indawo yokutywina: Imiphetho yee-bipolar plates idla ngokuyilwa ngezakhiwo zokutywina ukuthintela ukuvuza kwegesi kunye nokungena kolwelo.

4. Iitshaneli zokupholisa (ukhetho): Kwezinye iinkqubo zokusebenza eziphezulu, iitshaneli zokupholisa zinokuyilwa ngaphakathi kwiiplate ze-bipolar ukulawula ubushushu bokusebenza kwezixhobo.

Imisebenzi yeeplate ze-graphite bipolar

1. Umsebenzi wokuqhuba:

Njenge-electrode yezixhobo ze-electrochemical, i-bipolar plate inoxanduva lokuqokelela nokuqhuba umbane ukuqinisekisa ukukhutshwa kwamandla ombane ngokufanelekileyo.
2. Ukusasazwa kwegesi:

Ngokusebenzisa uyilo lomjelo ohambayo, ipleyiti ye-bipolar isasaza ngokulinganayo igesi yokusabela kwi-catalyst layer, ikhuthaza impendulo ye-electrochemical.
3. Ukwahlula iindawo zokusabela:

Kwi-fuel cell okanye kwi-electrolyzer, ii-bipolar plates zahlula iindawo ze-anode kunye ne-cathode, zithintela iigesi ukuba zingaxubeki.
4. Ukusasazwa kobushushu kunye nokukhupha amanzi:

Iipleyiti ze-bipolar zinceda ekulawuleni ubushushu bokusebenza kwezixhobo kwaye zikhuphe amanzi okanye ezinye iimveliso eziveliswa yimpendulo.
5. Inkxaso yoomatshini:

Iipleyiti zeBipolar zibonelela ngenkxaso yesakhiwo se-membrane electrode, ziqinisekisa uzinzo kunye nokuqina kwezixhobo.

Kutheni ukhetha i-graphite njengezinto ze-bipolar plate?

Iimpawu zezinto eziphathekayo zeeplate ze-graphite bipolar
●Ukuqhuba okuphezulu:

Ukumelana okukhulu kwegrafiti kuphantsi njenge-10-15μΩ.cm (kungcono kune-100-200 μΩ·cm yeipleyiti yesinyithi ye-bipolar).

●Ukumelana nokugqwala:

Phantse akukho mhlwa kwindawo eneasidi yeeseli zepetroli (pH 2-3), kwaye ubomi benkonzo bunokufikelela kwiiyure ezingaphezu kwama-20,000.

●Ilula:

Ubuninzi bumalunga ne-1.8 g/cm3 (7-8 g/cm3 kwipleyiti ye-bipolar yesinyithi), nto leyo eluncedo ekunciphiseni ubunzima kwiindlela zokusebenzisa imoto.

●Ipropati yokuthintela igesi:

Ulwakhiwo oluxineneyo lwegraphite lunokuthintela ngempumelelo ukungena kwehydrogen kwaye lukhuselekile kakhulu.

●Ukucutshungulwa okulula:

Izinto zegrafayithi kulula ukuzicubungula kwaye zinokwenza ngokwezifiso uyilo lwemijelo yokuhamba kwamanzi eyinkimbinkimbi kunye nobukhulu ngokweemfuno.

Zenziwa njani iiplate ze-graphite bipolar?

Inkqubo yemvelisoipleyiti ye-graphite bipolarkuquka oku kulandelayo:
●Ukulungiswa kwezinto eziluhlaza:

Sebenzisa igrafiti yendalo ecocekileyo kakhulu (>99.9%) okanye umgubo wegrafiti yokwenziwa.

Yongeza i-resin (efana ne-phenolic resin) njengesihlanganisi ukuze womeleze amandla oomatshini.

●Ukubumba ucinezelo:

Izinto ezixutyiweyo zifakwa kwi-mold kwaye zicinezelwe phantsi kobushushu obuphezulu (200-300℃) kunye noxinzelelo oluphezulu (>100 MPa).

●Unyango lweGraphitization:

Ukufudumeza ukuya kuthi ga kwi-2500-3000℃ kwindawo engasebenziyo kubangela ukuba izinto ezingezizo iikhabhoni ziguquguquke kwaye zenze isakhiwo segrafiti esixineneyo.

●Ukucubungula umgijimi:

Sebenzisa oomatshini be-CNC okanye ii-laser ukuze ukrole imijelo ye-serpentine, parallel okanye interdigitated (ubunzulu yi-0.5-1 mm).

●Unyango lomphezulu:

Ukufunxwa nge-resin okanye isinyithi (njengegolide, i-titanium) kunciphisa ukumelana nokuxinana kwaye kuphucula ukumelana nokuguguleka.

Zithini iindlela zokusebenzisa iiplate ze-graphite bipolar?

1. Iseli yepetroli:

- Iseli yamafutha e-membrane ye-proton exchange (PEMFC)

- Iseli yamafutha e-okside eqinileyo (i-SOFC)

- Iseli yeFuel yeMethanol ethe ngqo (i-DMFC)

2. I-Electrolyzer:

- Ukuveliswa kwe-hydrogen nge-electrolysis yamanzi

- Ishishini le-Chlor-alkali

3. Inkqubo yokugcina amandla:

- Ibhetri yokuhamba

4. Ishishini leeKhemikhali:

- I-Electrochemical Reactor

5. Uphando lwelebhu:

- Uphuhliso lweprototype kunye novavanyo lweeseli zamafutha kunye nee-electrolyzers

Shwankathela

Iiplate ze-Graphite bipolarzizinto eziphambili zezixhobo ze-electrochemical ezifana neeseli zepetroli kunye nee-electrolyzer, kwaye zinemisebenzi emininzi efana nokuqhuba, ukusasazwa kwegesi, kunye nokwahlulahlula iindawo zokusabela. Ngophuhliso lwetekhnoloji yamandla acocekileyo, iiplate ze-graphite bipolar zisetyenziswa ngakumbi kwizithuthi ezintsha zamandla, iinkqubo zokugcina amandla, imveliso ye-hydrogen yamakhemikhali kunye neminye imimandla.