ʻO ka ikehu hydrogen a me ka graphite bipolar plate

I kēia manawa, nui nā ʻāina e pili ana i nā ʻano āpau o ka noiʻi hydrogen hou i ka holo piha, nā pilikia ʻenehana i ka piʻi ʻana e lanakila. Me ka hoʻonui mau ʻana o ka nui o ka hana ʻana o ka ikehu hydrogen a me ka mālama ʻana a me ka ʻoihana halihali, ʻo ke kumukūʻai o ka ikehu hydrogen he wahi nui e emi ai. Ke hōʻike nei nā noiʻi e hāʻule ke kumukūʻai holoʻokoʻa o ke kaulahao ʻoihana hydrogen i ka hapalua ma 2030. Wahi a ka hōʻike i hoʻokuʻu ʻia e ka International Hydrogen Energy Commission a me McKinsey, ʻoi aku ma mua o 30 mau ʻāina a me nā ʻāina i hoʻokuʻu i ka palapala alanui no ka hoʻomohala ʻana i ka ikehu hydrogen. a hiki i ka 300 biliona kālā ʻAmelika i ka makahiki 2030 ka hoʻopukapuka honua i nā hana ikehu hydrogen

Hoʻokumu ʻia ka waihona wahie hydrogen me nā pūnaewele wahie lehulehu i hoʻopaʻa ʻia i ka moʻo.O ka papa bipolar a me ka membrane electrode MEA ua overlapped alternately, a hoʻopaʻa sila i waena o kēlā me kēia monomer. Ma hope o ka paʻi ʻia ʻana e ka papa mua a me hope, hoʻopaʻa ʻia a hoʻopaʻa ʻia me nā wili e hana ai i kahi pūʻulu pahu hydrogen.

Hoʻopili ʻia ka pā bipolar a me ka membrane electrode MEA, a hoʻokomo ʻia nā sila ma waena o kēlā me kēia monomer. Ma hope o ka paʻi ʻia ʻana e ka papa mua a me hope, hoʻopaʻa ʻia lākou a hoʻopaʻa ʻia me nā wili e hana ai i kahi pūnaewele wahie hydrogen.papa bipolar i hana ʻia me ka graphite artificial.ʻO ka pā bipolar i hana ʻia me kēia ʻano mea he conductivity maikaʻi a me ke kūpaʻa corrosion. Eia nō naʻe, ma muli o nā koi no ka paʻa ʻana o ka ea o ka pā bipolar, pono ke kaʻina hana i nā kaʻina hana he nui e like me ka resin impregnation, carbonization, graphitization a me ka hoʻoili ʻana o ka māla ma hope, no laila paʻakikī ke kaʻina hana a he kiʻekiʻe loa ke kumukūʻai. lilo i mea nui e kaohi ana i ka hoohana ana i ka wahie.

ʻO ka membrane hoʻololi protonHiki ke hoʻololi pololei i ka ikehu kemika (PEMFC) i ka ikehu uila ma ke ʻano isothermal a me ka electrochemical. ʻAʻole i kaupalena ʻia e Carnot cycle, he kiʻekiʻe ka hoʻololi ʻana o ka ikehu (40% ~ 60%), a maʻemaʻe a pollution ʻole (ʻo ka huahana ka wai nui). Manaʻo ʻia ʻo ia ka ʻōnaehana lako mana pono a maʻemaʻe i ka 21st century. Ma ke ʻano he ʻāpana hoʻohui o nā kelepona hoʻokahi i ka waihona PEMFC, pāʻani nui ka pā bipolar i ke kuleana o ka hoʻokaʻawale ʻana i ke kinoea collusion ma waena o nā cell, ka hāʻawi ʻana i ka wahie a me ka oxidant, ke kākoʻo ʻana i ka electrode membrane a me ka hoʻopili ʻana i nā cell hoʻokahi i ka moʻo e hana i ke kaapuni uila.