ʻO ke kelepona wahie kahi ʻano mea hana mana, e hoʻololi ana i ka ikehu kemika i loko o ka wahie i ikehu uila ma o ka hopena redox o ka oxygen a i ʻole nā oxidants ʻē aʻe. ʻO ka wahie maʻamau ka hydrogen, hiki ke hoʻomaopopo ʻia ʻo ia ka hopena hope o ka electrolysis wai i ka hydrogen a me ka oxygen.
ʻAʻole e like me ka rocket, ʻaʻole hana ka cell wahie hydrogen i ka ikehu kinetic ma o ka hopena ikaika o ka hydrogen a me ka oxygen combustion, akā hoʻokuʻu i ka ikehu manuahi ʻo Gibbs i loko o ka hydrogen ma o ka mea catalytic. ʻO kāna kumu hana, ʻo ia ka hoʻoheheʻe ʻia ʻana o ka hydrogen i loko o nā electrons a me nā hydrogen ions (protons) ma o kahi catalyst (ʻo ka platinum maʻamau) i loko o ka electrode maikaʻi o kahi cell wahie. Hiki nā protons i ka electrode maikaʻi ʻole ma o ka membrane hoʻololi proton a pane me ka oxygen e hana i ka wai a me ka wela. Holo nā electrons pili mai ka electrode maikaʻi i ka electrode maikaʻi ʻole ma o ke kaapuni waho e hana i ka ikehu uila. ʻAʻohe ona bottleneck thermal efficiency ma kahi o 40% no ka mīkini wahie, a hiki i ka pono o ka cell wahie hydrogen ke hiki maʻalahi ma mua o 60%.
I kekahi mau makahiki i hala aku nei, ua ʻike ʻia ka ikehu hydrogen ʻo ia ke "ʻano hope loa" o nā kaʻa ikehu hou ma muli o kona mau pono o ka haumia ʻole, ka ikehu hou, ka hydrogenation wikiwiki, ka laulā piha a pēlā aku. Eia nō naʻe, kūpono ke kumumanaʻo loea o ka cell wahie hydrogen, akā ua emi loa ka holomua o ka ʻoihana. ʻO kekahi o nā pilikia nui o kona hoʻolaha ʻana, ʻo ia ka kaohi ʻana i nā kumukūʻai. ʻAʻole wale kēia me ke kumukūʻai o ke kaʻa ponoʻī, akā, ʻo ke kumukūʻai o ka hana ʻana a me ka mālama ʻana i ka hydrogen.
ʻO ka hoʻomohala ʻana o nā kaʻa wahie hydrogen e hilinaʻi ʻia ana ma ke kūkulu ʻana i nā ʻōnaehana wahie hydrogen e like me ka hana ʻana o ka hydrogen, ka mālama ʻana i ka hydrogen, ka lawe ʻana i ka hydrogen a me ka hydrogenation. ʻAʻole e like me nā tram maʻemaʻe, hiki ke hoʻouka mālie ʻia ma ka home a i ʻole ma ka hui, hiki ke hoʻouka ʻia nā kaʻa hydrogen ma ke kahua hydrogenation wale nō, no laila ʻoi aku ka wikiwiki o ke koi no ke kahua hoʻouka. Me ka ʻole o kahi pūnaewele hydrogenation piha, ʻaʻole hiki ke hoʻomohala ʻia ka ʻoihana kaʻa hydrogen.
Ka manawa hoʻouna: ʻApelila-02-2021