Njengamanje, amazwe amaningi azungeze zonke izici zocwaningo olusha lwe-hydrogen aqhubeka ngokugcwele, ubunzima bezobuchwepheshe okufanele buthathwe ukuze bunqotshwe. Njengoba ukwanda okuqhubekayo kobukhulu bokukhiqizwa kwamandla e-hydrogen kanye nengqalasizinda yokugcina kanye nezokuthutha, izindleko zamandla e-hydrogen nazo zinendawo enkulu yokwehla. Ucwaningo lubonisa ukuthi izindleko eziphelele zochungechunge lwamandla e-hydrogen kulindeleke ukuthi zehle ngesigamu ngo-2030. Ngokusho kombiko okhishwe ngokubambisana yi-Hydrogen Energy Commission yamazwe ngamazwe kanye ne-McKinsey, amazwe nezifunda ezingaphezu kuka-30 akhiphe imephu yomgwaqo wokuthuthukiswa kwamandla e-hydrogen, kanti ukutshalwa kwezimali emhlabeni wonke kumaphrojekthi amandla e-hydrogen kuzofinyelela amadola ayizigidigidi ezingama-300 zaseMelika ngo-2030.
I-hydrogen fuel cell stack yakhiwa amaseli amaningi e-fuel cell ahlanganiswe ngokulandelana.Ipuleti le-bipolar kanye ne-electrode ye-membrane MEA zihambisana ngokushintshana, futhi izivalo zifakwa phakathi kwe-monomer ngayinye. Ngemva kokucindezelwa amapuleti angaphambili nangemuva, ayaboshwa futhi aboshwe ngezikulufo ukuze kwakhiwe i-hydrogen fuel cell stack.
Ipuleti le-bipolar kanye ne-electrode ye-membrane MEA zihambisana ngokushintshana, futhi izivalo zifakwa phakathi kwe-monomer ngayinye. Ngemva kokucindezelwa amapuleti angaphambili nangemuva, ayaboshwa futhi aboshwe ngezikulufo ukuze akhe i-hydrogen fuel cell stack. Njengamanje, ukusetshenziswa kwangempela yi-ipuleti le-bipolar elenziwe nge-graphite yokwenziwa.Ipuleti le-bipolar elenziwe ngalolu hlobo lwezinto linomoya omuhle wokuqhuba kanye nokumelana nokugqwala. Kodwa-ke, ngenxa yezidingo zokuqina komoya kwepuleti le-bipolar, inqubo yokukhiqiza idinga izinqubo eziningi zokukhiqiza ezifana nokufakwa kwe-resin, i-carbonization, i-graphitization kanye nokucubungula insimu yokugeleza okulandelayo, ngakho-ke inqubo yokukhiqiza iyinkimbinkimbi futhi izindleko ziphezulu kakhulu, Sekuyisici esibalulekile esivimbela ukusetshenziswa kweseli likaphethiloli.
I-membrane yokushintshana kwe-protonI-fuel cell (PEMFC) ingaguqula ngqo amandla amakhemikhali abe amandla kagesi ngendlela ye-isothermal kanye ne-electrochemical. Ayinqunyelwe umjikelezo we-Carnot, inezinga eliphezulu lokuguqulwa kwamandla (40% ~ 60%), futhi ihlanzekile futhi ayinayo ingcoliseko (umkhiqizo ikakhulukazi ungamanzi). Ibhekwa njengohlelo lokuqala lokuphakelwa kwamandla olusebenza kahle noluhlanzekile ekhulwini lama-21. Njengengxenye yokuxhumanisa amaseli angawodwa ku-PEMFC stack, i-bipolar plate idlala indima yokuhlukanisa ukuhlangana kwegesi phakathi kwamaseli, ukusabalalisa uphethiloli kanye ne-oxidant, ukusekela i-membrane electrode kanye nokuxhuma amaseli angawodwa ochungechungeni ukuze kwakheke isekethe kagesi.
Isikhathi sokuthunyelwe: Jan-10-2022