Chii chinonzi graphite bipolar plate?

Graphite bipolar platechinhu chakakosha chinoshandiswa mumidziyo yemagetsi yakaita semafuel cells nemaelectrolyzers, anowanzo gadzirwa nezvinhu zvegraphite zvakachena zvakanyanya. Inoita basa rakakosha mukuita kwemagetsi, inonyanya kushandiswa kuita magetsi, kuparadzira magasi ekuita (senge hydrogen neokisijeni), uye kupatsanura nzvimbo dzekuita. Nekuti mativi ayo maviri anosangana neanode necathode yemasero ega ari pedyo, zvichigadzira chimiro che "bipolar" (rimwe divi ndiro anode flow field uye rimwe divi ndiro cathode flow field), inonzi bipolar plate.

Maumbirwo eplate yegraphite bipolar

Maplate eGraphite bipolar anowanzo kuve nezvikamu zvinotevera:
1. Munda weKuyerera: Pamusoro pe bipolar plate yakagadzirwa nechimiro chakaoma chekuyerera kwemhepo kuti iparadzire zvakaenzana gasi re reaction (senge hydrogen, oxygen kana mhepo) uye ibudise mvura inogadzirwa.

2. Dura rinofambisa mhepo: Graphite zvinhu pachayo zvine conductivity yakanaka uye zvinogona kufambisa magetsi zvinobudirira.

3. Nzvimbo yekuvhara: Micheto yema "bipolar plates" inowanzogadzirwa nezvivakwa zvekuvhara kuti gasi risabude uye mvura ipinde.

4. Nzira dzekutonhodza (sarudzo): Mune mamwe mashandisirwo anoshanda zvakanyanya, nzira dzekutonhodza dzinogona kugadzirwa mukati memaplate e bipolar kuti dzigadzirise tembiricha yekushanda kwemuchina.

Mabasa emaplate e graphite bipolar

1. Basa rekufambisa:

Semaerekitirodhi emidziyo yemagetsi, bipolar plate ine basa rekuunganidza nekufambisa magetsi kuti ive nechokwadi chekuti simba remagetsi rinobuda zvakanaka.
2. Kugoverwa kwegasi:

Kuburikidza nekugadzirwa kwenzira yekuyerera kwemvura, bipolar plate inogovera gasi remhinduro zvakaenzana kune catalyst layer, zvichikurudzira electrochemical reaction.
3. Kuparadzanisa nzvimbo dzekuita zvinhu:

Mu fuel cell kana electrolyzer, bipolar plates dzinoparadzanisa nzvimbo dze anode ne cathode, zvichidzivirira magasi kuti asasanganise.
4. Kupisa uye kuburitsa mvura:

Mapureti eBipolar anobatsira kudzora tembiricha yekushanda kwemidziyo uye kuburitsa mvura kana zvimwe zvinhu zvinogadzirwa nekuita kwechinhu ichi.
5. Rutsigiro rwemakanika:

Maplate eBipolar anotsigira chimiro che membrane electrode, zvichiita kuti michina igare kwenguva refu uye yakasimba.

Sei uchifanira kusarudza graphite se bipolar plate?

Hunhu hwezvinhu zve graphite bipolar plates
●Kufambisa kwakanyanya:

Kudzivirira kukuru kwegraphite kwakaderera se10-15μΩ.cm (zviri nani pane 100-200 μΩ·cm yendiro yesimbi ye bipolar).

●Kuramba ngura:

Hapana ngura iri munzvimbo ine acidic yemasero emafuta (pH 2-3), uye hupenyu hwebasa hunogona kusvika maawa anopfuura 20,000.

●Huremu hwakareruka:

Kuwanda kwesimbi iyi kunosvika 1.8 g/cm3 (7-8 g/cm3 yesimbi inonzi bipolar plate), iyo inobatsira pakuderedza huremu mukushandisa mota.

●Nzvimbo yekudzivirira gasi:

Maumbirwo akaomarara egraphite anogona kudzivirira kupinda kwehydrogen uye akachengeteka zvakanyanya.

●Kugadziriswa kuri nyore:

Zvinhu zveGraphite zviri nyore kugadzirisa uye zvinogona kugadzirisa magadzirirwo akaomarara enzira dzekuyerera uye saizi zvichienderana nezvinodiwa.

Maplate e graphite bipolar anogadzirwa sei?

Maitiro ekugadziragirafu ye bipolar platezvinosanganisira zvinotevera:
●Kugadzirira zvinhu zvisina kugadzirwa:

Shandisa girafiti yechisikigo yakachena (>99.9%) kana upfu hwegirafiti hwekugadzira.

Wedzera resin (yakadai sephenolic resin) sechinhu chinosunga kuti uwedzere simba remuchina.

●Kudzvinyirirwa Kuumbwa:

Zvinhu zvakasanganiswa zvinopinzwa muforoma uye zvinodzvanywa pasi pekupisa kwakanyanya (200-300℃) uye kumanikidzwa kwakanyanya (>100 MPa).

●Kurapa kweGraphitization:

Kupisa kusvika 2500-3000℃ mumhepo isina kusimba kunoita kuti zvinhu zvisiri zvekabhoni zviparare uye zvigadzire chimiro chegirafiti chakasimba.

●Kugadziriswa kwemumhanyi:

Shandisa michina yeCNC kana lasers kuveza nzira dzeserpentine, parallel kana interdigitated (kudzika kwe 0.5-1 mm).

●Kurapa pamusoro:

Kuisa resin kana simbi (senge goridhe, titanium) kunoderedza kusabatana uye kunovandudza kusakara.

Maplate e graphite bipolar anoshandiswa sei?

1. Sero remafuta:

- Sero remafuta eProton exchange membrane (PEMFC)

- Sero reMafuta reSolid Oxide (SOFC)

- Sero remafuta reMethanol rakananga (DMFC)

2. Electrolyzer:

- Kugadzirwa kwehydrogen nemagetsi emvura

- Indasitiri yeChlor-alkali

3. Sisitimu yekuchengetedza simba:

- Bhatiri rinoyerera

4. Indasitiri yeMakemikoro:

- Electrochemical Reactor

5. Tsvagiridzo yerabhoritari:

- Kugadzirwa kwemuenzaniso uye kuyedzwa kwemasero emafuta nema electrolyzers

Pfupisa

Maplate eGraphite bipolarndizvo zvikamu zvikuru zvemidziyo yemagetsi yakaita semafuel cell nemaelectrolyzer, uye zvine mabasa akawanda akadai sekufambisa magetsi, kugoverwa kwegasi, uye kupatsanurwa kwenzvimbo dzekuita. Nekuvandudzwa kwetekinoroji yesimba rakachena, ma graphite bipolar plates ari kushandiswa zvakanyanya mumotokari itsva dzesimba, masisitimu ekuchengetera simba, kugadzirwa kwehydrogen yemakemikari nedzimwe nzvimbo.