Hoʻokumu ʻo vet-china i ka hāʻawi ʻana i nā mea pono wahie cell, ʻoi aku ka proton exchange membrane (PEM) fuel cell membrane electrode assembly (MEA). Hana ʻia kēia hui me ka hoʻohana ʻana i ka ʻenehana hou e hōʻoia i ka hana maikaʻi o nā ʻōnaehana wahie ma nā ʻano hiʻohiʻona noiʻi like ʻole, mai ka mana kaʻa a hiki i nā ʻōnaehana ikehu portable.
Nā kikoʻī o ka hui electrode membrane:
| mānoanoa | 50 μm. |
| Nui | 5 knm2, 16 knm2, 25 knm2, 50 knm2 a i ole 100 knm2 mau wahi ili. |
| Hoʻouka ʻana i ka Catalyst | Anode = 0.5 mg Pt/cm2.Cathode = 0.5 mg Pt/cm2. |
| Nā ʻano hui electrode membrane | 3-layer, 5-layer, 7-layer (no laila ma mua o ke kauoha ʻana, e ʻoluʻolu e wehewehe i ka nui o nā papa āu e makemake ai, a hāʻawi pū i ke kaha kiʻi MEA). |
ʻO ke kumu nui owahie pahu MEA:
a) Proton Exchange Membrane (PEM): he membrane polymer kūikawā ma ke kikowaena.
b) Nā Papahana Catalyst: ma nā ʻaoʻao ʻelua o ka membrane, ka mea maʻamau i haku ʻia me nā catalysts metala makamae.
c) Nā Papa Hoʻoheheʻe Gas (GDL): ma nā ʻaoʻao o waho o nā papa catalyst, hana maʻamau i nā mea fiber.
Ka hana owahie pahu MEA:
- Hoʻokaʻawale i nā reactants: pale i ka pilina pololei ma waena o ka hydrogen a me ka oxygen.
- Ke alakaʻi nei i nā protons: hiki i nā protons (H+) ke hele mai ka anode ma o ka membrane a i ka cathode.
- Hoʻopiʻi i nā hopena: Hoʻoikaika i ka hydrogen oxidation ma ka anode a me ka hōʻemi o ka oxygen ma ka cathode.
- Hoʻopuka i kēia manawa: hoʻopuka i ke kahe electron ma o nā hopena electrochemical.
- Ka mālama ʻana i ka wai: mālama i ke koena wai kūpono e hōʻoia i ka hopena mau.
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