Fuel cell bipolar plate

Bipolar plate ndiyo yakakosha chikamu cheiyo reactor, ine simba guru pakuita uye mutengo weiyo reactor. Parizvino, iyo bipolar plate inonyanya kukamurwa kuita graphite plate, composite plate uye simbi ndiro zvinoenderana nechinhu.

Bipolar plate ndeimwe yepakati pezvikamu zvePEMFC, basa rayo guru kutakura gasi kuburikidza nepamusoro pemvura inoyerera, kuunganidza uye kuitisa ikozvino, kupisa uye mvura inogadzirwa nekuita. Zvichienderana nerudzi rwezvinhu, huremu hwePEMFCs stack inenge 60% kusvika 80% uye mutengo unosvika makumi matatu muzana. Zvinoenderana nezvinodiwa zveBipolar plate, uye tichifunga nezve acidic electrochemical reaction nharaunda yePEMFC, bipolar plate inodiwa kuve nepamusoro zvinodiwa pakufambiswa kwemagetsi, kusimba kwemhepo, mechanical properties, corrosion resistance, nezvimwe.

Iyo kaviri ndiro zvinoenderana nemidziyo inonyanya kukamurwa kuita matatu mapoka graphite ndiro, composite ndiro, simbi ndiro, graphite kaviri ndiro ndiyo inonyanya kushandiswa parizvino PEMFC mbiri ndiro, magetsi conductivity, thermal conductivity, kugadzikana kwakanaka uye corrosion kuramba uye kumwe kuita. asi hurombo husina kunaka hwemakina, hutete, matambudziko ekugadzira anotungamira kumatambudziko emutengo wepamusoro anotambudzwa nevagadziri vazhinji.

Graphitebipolar platenhanganyaya:

Bipolar plates yakagadzirwa negraphite ine yakanaka magetsi conductivity, thermal conductivity uye corrosion resistance, uye ndiyo inonyanya kushandiswa bipolar plates muPEMFCS. Zvisinei, kukanganisa kwayo kunonyanya kuoneka: kupisa kwegraphitization ye graphite plate inowanzokwirira kupfuura 2500 ℃, iyo inoda kuitwa maererano neyakaoma kupisa maitiro, uye nguva yakareba; Iyo machining process inononoka, kutenderera kwakareba, uye kurongeka kwemuchina kwakakwira, zvichikonzera kudhura kwakanyanya kwegraphite plate; Graphite haina kusimba, ndiro yakapedzwa inoda kunyatsobatwa, kuungana kwakaoma; Graphite ine porous, saka mahwendefa anofanirwa kunge ari mashoma mamirimita akakora kubvumira magasi kuti aparadzanise, zvichikonzera kuderera kwechigadzirwa chacho, asi chinorema chakapedzwa chigadzirwa.

Kugadzirira kwegraphitebipolar plate:

Iyo toner kana graphite powder inosanganiswa ne graphitized resin, press yakagadzirwa, uye graphitized pakupisa kwepamusoro (kazhinji pa 2200 ~ 2800C) mumhepo inoderedza kana pasi pemamiriro ekutsvaira. Zvadaro, girafu ndiro rinopinzwa kuti rivhare gomba, uye ipapo muchina wekudzora nhamba unoshandiswa kugadzira ndima yegasi inodiwa pamusoro payo. Kukwirisa TEMPERATURE GRAPHITIZATION UYE MACHINJI WEGASI CHANNE NDIZO ZVIKONZERO ZVIKURU ZVINOKUDZWA ZVIKURU ZEBIPOLAR PLATES, NEMACHING ACCOUNTING INOFANIRA 60% YEMUTARIRO WEFUTA WESE.

Bipolar ndirondechimwe chezvakanyanya kukosha zvikamu mufuti cell stack. Mabasa ayo makuru ndeaya anotevera:

1、Kubatana kwebhatiri rimwe chete

2, Huya mafuta (H2) uye mweya (02)

3, Ikozvino kuunganidzwa uye kuitisa

4, Tsigira stack uye MEA

5, Kubvisa kupisa kunokonzerwa nekuita

6, Dhonza mvura inogadzirwa mukuita