Pūhiko whatu graphiteHe mea nui te mahi a te muka karāpeti i roto i ngā hangarau pākahiko hou, inā koa i roto i ngā pākahiko rere me ngā pūtau wahie. Hei rauemi whai hua, pakari hoki, ka whakaratohia e te muka karāpeti he kawe hiko pai me te pumau wera, me te whai wāhi atu ki te whakapai ake i te mahi pākahiko, te roa o te ora, me te haumaru ake. I roto i te whakamahinga o ngā pākahiko rere me ngā pūtau wahie, ko ngā āhuatanga ahurei o te muka pākahiko karāpeti e waiho ana hei wāhanga matua i roto i ēnei pūnaha rokiroki pūngao tino whai hua.
Te Whakamahinga o te Pūhiko Graphite Felt i roto i ngā Pūhiko Rere
Ko ngā pākahiko rere, inā koa ko ngā pākahiko rere vanadium redox (VRFB) me ngā pākahiko rere konutea-pūromine, e rangahaua whānuitia ana, e whakamahia ana hoki i roto i ngā hangarau rokiroki pūngao. Ka rongoa, ka tukuna hoki e rātou te pūngao mā roto i ngā matū hohe kua rewa i roto i te irahiko, ka roa ake te ora me te nui ake o ngā kaha rokiroki pūngao ki te whakataurite ki ngā pākahiko tuku iho. I roto i te hoahoa o ēnei pākahiko, ka whakamahia te huruhuru pākahiko karāhe i roto i ngā wāhanga irahiko, inā koa ka taunekeneke te irahiko rere ki ngā rauemi irahiko.
Ko te kaha kawe hiko o te whatu karāpeti te painga matua o tana whakamahinga i roto i ngā pākahiko rere. I roto i ngā pākahiko rere, ka puta te tauhohenga hiko i waenga i te irahiko me ngā irahiko, nō reira he mea nui te kawe hiko o ngā irahiko ki te mahi a te pākahiko. Hei rauemi irahiko, ka taea e te whatu karāpeti te whakatairanga i te nekehanga o ngā katote i roto i te irahiko me te whakarite i te whakawhiti irahiko whai hua, e whakapai ake ana i te whai huatanga o te utu me te tukunga o te pākahiko.
Hei tāpiritanga, he mahi nui tā te whatu karāpiti ki te whakahaere wera i roto i ngā pākahiko rere. I te wā e whakahaerehia ana ngā pākahiko rere, ka puta te wera o roto. Mā te kawe wera pai o te whatu karāpiti ka āwhina i te whakamarara i tēnei wera, ka ārai i te wera nui o te pākahiko, ā, ka whakarite kia mahi i roto i te awhe pāmahana tino pai. Ehara i te mea ka āwhina noa tēnei āheinga whakahaere wera ki te whakaroa i te roa o te ora o te pākahiko, engari ka whakarei ake hoki i tōna haumaru, ka whakaiti i te mōrearea o te pakaru o te pākahiko nā te wera nui.
Te Whakamahinga o te Pūhiko Graphite Felt i roto i ngā Pūtau Wahie
He taputapu ngā pūtau wahie e huri tika ana i te pūngao matū hei pūngao hiko mā roto i ngā tauhohenga hiko, e whakamahia whānuitia ana i roto i ngā waka hiko, i ngā pūtake hiko tārua, me ngā pūnaha pūngao whakahou. Ko te whakamahinga o te pākahiko karāpeti i roto i ngā pūtau wahie ko tōna tūranga hei paparanga horahanga hau (GDL) me te rauemi hiko. He tino kitea tōna hiranga i roto i ngā pūtau wahie kiriuhi whakawhiti proton (PEMFC).
I roto i ngā pūtau wahie, ko te whatu karāpiti te paparanga horapa hau (GDL), e kawenga ana mō te tohatoha ōrite i ngā hau tauhohenga pērā i te hauwai me te hāora ki ngā mata irahiko, me te mahi anō hoki hei reo kawe hiko. Nā tōna kawe hiko pai rawa atu, ka taea e te whatu karāpiti te whakawhiti i ngā irahiko i hangaia i roto i te pūtau ki te ara iahiko o waho, ka taea ai te whakaputa i te pūngao hiko. Ka āwhina hoki tōna hanganga pūngoi i te horapa hau me te kawe hiko, kia pai ai te haere o ngā tauhohenga hiko i roto i ngā pūtau wahie.
Ehara i te mea me whakarato noa te whatu karāpiti i roto i ngā pūtau wahie i te kawe hiko pai, engari me tino ātete hoki ki te waikura me te mahi pāmahana teitei. Nā te mea ka mahi ngā pūtau wahie i roto i ngā taiao pāmahana teitei me te waikura, ko te pumau matū me te pumau wera o te whatu karāpiti he kōwhiringa pai. Ka taea te mahi pumau i roto i ngā āhuatanga tino kino mō ngā wā roa, ka karo i te hekenga o te mahi nā te koroheketanga o te rauemi, te waikura rānei.
Hei tāpiritanga, ka āwhina hoki te whatu karāpeti i roto i ngā pūtau wahie ki te whakapai ake i te whai huatanga o te tauhohenga mā tōna hanganga kua hoahoatia pai. Ko te whakaritenga me te paparanga o ngā muka karāpeti ehara i te mea ka whakarei ake i tōna kaha miihini engari ka whakapai ake hoki i te whai huatanga o te rere o te hau. Mā te whakarerekē tika i te porosity me te āhua hanganga o te whatu karāpeti, ka taea te whakapai ake i te mana whakaputa me te mahi a ngā pūtau wahie.
Te Whanaketanga o te Pūhiko Wēra o te Graphite ā muri ake nei
I te whanaketanga tonu o ngā hangarau pākahiko rere me te pūtau wahie, kei te whānui haere ngā tūmanakohanga tono mō te huruhuru pākahiko karāpiti. Kei te tūhura ngā kairangahau i ngā huarahi hei whakapai ake i te mahi a te huruhuru pākahiko karāpiti mā roto i ngā hiato karāpiti, ngā tikanga tāpiri, me ngā maimoatanga mata. Hei tauira, mā te whakapai ake i te hoahoa hanganga o te huruhuru pākahiko karāpiti ka taea te whakanui ake i tōna kawe hiko, te whakarei ake i tōna ātete ki te waikura, me te whakapai ake i ngā āheinga whakahaere wera. Mā ēnei whakapainga ka whakatairanga ake i te tono o ngā pākahiko rere me ngā pūtau wahie i roto i ngā mara rokiroki me te hurihanga pūngao mahi-teitei.
Hei whakamutunga, ko te whakamahinga o te whatu pākahiko karāpeti i roto i ngā pākahiko rere me ngā pūtau wahie, me tōna kawe hiko pai rawa atu, ōna āheinga whakahaere wera, me tōna pumau hanganga, kua noho hei rauemi matua mō ēnei pūnaha rokiroki me te hurihanga pūngao matatau. I te haere tonu o te whanaketanga o ngā hangarau pūngao, ka nui haere te mahi a te whatu pākahiko karāpeti ki te akiaki i te auahatanga hangarau pākahiko, te whakapai ake i te whai huatanga o te pūngao, me te whakatairanga i te whanaketanga pumau.
Wā tuku: Hakihea-23-2025