Seli ea mafural ke mofuta oa sesebelisoa sa phetolo ea matla, se ka fetolelang matla a electrochemical ea mafura hore e be matla a motlakase. E bitsoa fuel cell hobane ke sesebelisoa sa motlakase sa electrochemical hammoho le betri. Fuel cell e sebelisang hydrogen e le mafura ke hydrogen fuel cell. Hydrogen fuel cell e ka utloisisoa e le karabelo ea electrolysis ea metsi ho hydrogen le oksijene. Ts'ebetso ea hydrogen fuel cell e hloekile ebile e sebetsa hantle. Lisele tsa mafura a hydrogen ha li felle ka matla a 42% a mocheso oa potoloho ea Carnot e sebelisoang enjeneng ea likoloi tsa setso, mme katleho e ka fihla ho feta 60%.
Ho fapana le lirokete, lisele tsa mafura a hydrogen li hlahisa matla a kinetic ka karabelo e mabifi ea hydrogen le oksijene combustion, 'me li lokolla matla a mahala a Gibbs ka hydrogen ka lisebelisoa tsa catalytic. Matla a mahala a Gibbs ke matla a electrochemical a kenyelletsang entropy le likhopolo tse ling. Molao-motheo oa ho sebetsa ha hydrogen fuel cell ke hore hydrogen e decomposed ka hydrogen ions (ke hore protons) le dieleketerone ka catalyst (Platinum) ka eleketrode positive ea sele. Li-ion tsa haedrojene li feta lera la phapanyetsano ea proton ho eleketrode e mpe le oksijene e arabela ho fetoha metsi le mocheso, 'me lielektrone tse tsamaisanang li phalla ho tloha ho electrode e ntle ho ea ho electrode e mpe ka potoloho ea kantle ho hlahisa matla a motlakase.
Homafura cell stack, karabelo ea haedrojene le oksijene e etsoa, 'me ho na le phetiso ea tefiso ts'ebetsong, e hlahisang hona joale. Ka nako e tšoanang, haedrojene e kopana le oksijene ho hlahisa metsi.
Joalo ka letamo la karabelo ea lik'hemik'hale, motheo oa mantlha oa theknoloji ea stack cell cell ke "membrane ea phapanyetsano ea proton". Mahlakore a mabeli a filimi a haufi le lera la catalyst ho senya hydrogen hore e be li-ion tse qosoang. Kaha molek’hule oa haedrojene o monyenyane, lielektrone tse jereng haedrojene li ka hoholehela ho tse fapaneng ka masoba a manyenyane a filimi. Leha ho le joalo, ha hydrogen e ntse e jara lielektrone tse fetang masobeng a filimi, lielektrone li ntšoa limolek’huleng, li siea liprothone tsa haedrojene tse chehiloeng hantle feela hore li fihle pheletsong e ’ngoe ka filimi.
Liprothone tsa haedrojeneli hoheloa ke electrode ka lehlakoreng le leng la filimi 'me li kopana le limolek'hule tsa oksijene. Lipoleiti tsa electrode mahlakoreng ka bobeli a filimi li arola hydrogen hore e be li-ion tsa haedrojene tse ntle le lielektrone, 'me li arola oksijene liathomong tsa oksijene ho hapa lielektrone ebe li li fetola li-ion tsa oksijene (motlakase o fosahetseng). Li-electrone li etsa hona joale pakeng tsa lipoleiti tsa electrode, 'me li-ion tse peli tsa hydrogen le ion e le' ngoe ea oksijene li kopana ho etsa metsi, e leng eona feela "litšila" ts'ebetsong ea karabelo. Ha e le hantle, ts'ebetso eohle ea ts'ebetso ke ts'ebetso ea tlhahiso ea matla. Ka tsoelo-pele ea karabelo ea oxidation, li-electrone li fetisetsoa ka mokhoa o tsoelang pele ho theha motlakase o hlokahalang ho khanna koloi.
Nako ea poso: Feb-12-2022