Ua kūpaʻa ʻo vet-china i ka hoʻolako ʻana i nā mea hana kelepona wahie kūpono, ʻoiai hoʻi ka hui electrode membrane cell wahie proton exchange membrane (PEM) (MEA). Hana ʻia kēia hui me ka hoʻohana ʻana i ka ʻenehana hou e hōʻoia i ka hana maikaʻi loa o nā ʻōnaehana kelepona wahie ma nā ʻano hana like ʻole, mai ka mana kaʻa a hiki i nā ʻōnaehana ikehu lawe lima.
Nā kikoʻī o ka hui electrode membrane:
| Mānoanoa | 50 μm. |
| Nā nui | Nā wahi ʻili hana he 5 cm2, 16 cm2, 25 cm2, 50 cm2 a i ʻole 100 cm2. |
| Hoʻouka ʻana i ka mea hoʻoulu | ʻAnode = 0.5 mg Pt/cm2. ʻO Cathode = 0.5 mg Pt/cm2. |
| Nā ʻano hui electrode membrane | 3-papa, 5-papa, 7-papa (no laila ma mua o ke kauoha ʻana, e ʻoluʻolu e wehewehe i ka nui o nā papa MEA āu e makemake ai, a e hāʻawi pū i ke kiʻi MEA). |
ʻO ke ʻano nui owahie pūnaewele MEA:
a) ʻO ka Membrane Hoʻololi Proton (PEM): kahi membrane polymer kūikawā ma waenakonu.
b) Nā Papa Hoʻouluulu: ma nā ʻaoʻao ʻelua o ka membrane, i hana pinepine ʻia me nā mea hoʻouluulu metala makamae.
c) Nā Papa Hoʻolaha Kinoea (GDL): ma nā ʻaoʻao o waho o nā papa catalyst, i hana pinepine ʻia me nā mea fiber.
ʻO ka hana owahie pūnaewele MEA:
- Ke hoʻokaʻawale ʻana i nā mea hana: pale i ka pilina pololei ma waena o ka hydrogen a me ka oxygen.
- Ke alakaʻi ʻana i nā protons: e ʻae i nā protons (H+) e hele mai ka anode ma o ka membrane a i ka cathode.
- Nā hopena hoʻouluulu: Paipai i ka oxidation hydrogen ma ka anode a me ka hoʻemi ʻana o ka oxygen ma ka cathode.
- Ke hana ʻana i ke au: hoʻopuka i ke kahe o ka uila ma o nā hopena electrochemical.
- Ka mālama ʻana i ka wai: mālama i ke kaulike wai kūpono e hōʻoia i ka hoʻomau ʻana o nā hopena.
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