Mafuta a cell bipolar mbale

Bipolar mbale ndiye chigawo chapakati cha riyakitala, chomwe chimakhudza kwambiri magwiridwe antchito ndi mtengo wa riyakitala. Pakalipano, mbale ya bipolar imagawidwa kwambiri mu mbale ya graphite, mbale yamagulu ndi mbale yachitsulo malinga ndi zomwe zili.

Bipolar mbale ndi imodzi mwamagawo apakati a PEMFC, ntchito yake yayikulu ndikunyamula gasi kudutsa pamtunda woyenda pamwamba, kusonkhanitsa ndikuyendetsa pakalipano, kutentha ndi madzi opangidwa ndi zomwe zimachitika. Kutengera ndi mtundu wa zinthu, kulemera kwa stack ya PEMFCs ndi pafupifupi 60% mpaka 80% ndipo mtengo wake ndi pafupifupi 30%. Malinga ndi magwiridwe antchito a mbale ya bipolar, ndikuganizira za acidic electrochemical reaction chilengedwe cha PEMFC, mbale ya bipolar imayenera kukhala ndi zofunika kwambiri pakuwongolera magetsi, kulimba kwa mpweya, zida zamakina, kukana dzimbiri, ndi zina zambiri.

The awiri mbale malinga ndi zipangizo makamaka anawagawa m'magulu atatu graphite mbale, gulu mbale, mbale zitsulo, graphite awiri mbale ndi ambiri amagwiritsidwa ntchito panopa zoweta PEMFC awiri mbale, madutsidwe magetsi, madutsidwe matenthedwe, bata wabwino ndi dzimbiri kukana ndi ntchito zina. koma kusakhala bwino kwamakina, zovuta zamakina, zovuta zamakina zimadzetsa mavuto okwera mtengo omwe amavutitsidwa ndi opanga ambiri.

Graphitebipolar mbalechiyambi:

Mipukutu ya bipolar yopangidwa ndi graphite imakhala ndi magetsi abwino, kutentha kwa kutentha ndi kukana kwa dzimbiri, ndipo ndizitsulo zomwe zimagwiritsidwa ntchito kwambiri mu PEMFCS. Komabe, kuipa kwake kumakhalanso koonekeratu: kutentha kwa graphitization kwa mbale ya graphite nthawi zambiri kumakhala kwakukulu kuposa 2500 ℃, yomwe imayenera kuchitidwa motsatira ndondomeko yowonongeka, ndipo nthawi yayitali; Njira yopangira makina imachedwa, kuzungulira kwake ndi kwautali, ndipo makina olondola ndi apamwamba, zomwe zimapangitsa kuti mbale ya graphite ikhale yokwera mtengo; Graphite ndi yofooka, mbale yomalizidwa iyenera kusamaliridwa mosamala, msonkhano ndi wovuta; Graphite ndi porous, kotero mbale ayenera kukhala ochepa millimeters wandiweyani kulola mpweya kupatukana, chifukwa m'munsi kachulukidwe zinthu palokha, koma cholemera chomaliza mankhwala.

Kukonzekera kwa graphitebipolar mbale:

Tona kapena ufa wa graphite umasakanizidwa ndi utomoni wa graphitized, makina osindikizira, ndi graphitized pa kutentha kwakukulu (nthawi zambiri pa 2200 ~ 2800C) mumlengalenga wochepetsera kapena pansi pa vacuum. Kenako, mbale ya graphite imayikidwa kuti itseke dzenjelo, ndiyeno makina owongolera manambala amagwiritsidwa ntchito pokonza ndime yofunikira ya gasi pamwamba pake. KUGWIRITSA NTCHITO KUKHALIDWERA KWAMBIRI NDIKUCHITA NTCHITO ZA GESI NDIZOZIFUKWA ZOFUNIKA ZOkwera kukwera mtengo kwa MBALE ZA BIPOLAR, NDI MACHINING ACCOUNTING FOR pafupifupi 60% YA CHULEKA YONSE YA FUEL CELL CELL.

Bipolar mbalendi chimodzi mwazinthu zofunika kwambiri pazakudya zamafuta. Ntchito zake zazikulu ndi izi:

1, Kulumikizana kwa batri limodzi

2, Kupereka mafuta (H2) ndi mpweya (02)

3, Kutolereredwa ndi kuwongolera kwakali pano

4, Support okwana ndi MEA

5, Kuchotsa kutentha kwaiye chifukwa anachita

6, Kukhetsa madzi opangidwa muzochita