hydrogen Electrolyzer type
our country existing of hydrogen Electrolyzer according to Water and electricity solve technology technology divided intoALK , PEM , AEM , SOEC four kinds type . inALK technology commercialize Mature , Industrial chain whole . PEM technology Uniquely blessed , in commercialize Early stage , benefit At policy support . SOEC andAEM technology main in R&D and demonstration stage , Business test limited .
hydrogen Electrolyzer Production Process
alkaline Electrolyzer ( ALK )
Craftsmanship : use30%KOH or26%NaOH solution exist alkaline electrolyte environment middle conduct electrolysis .
structure : include diaphragm , just/ negative electrode net , electrode plate , frame , Gasket , bolt , end plate . Assemble Way and hydrogen The fuel cell heap similar .
advantage : because electrode middle Does not contain precious metals , therefore have cost benefit . need stable electricity , therefore Not suitable combine wind energy or solar energy wait intermittent energy .
Material : main Material include nickel net electrode , diaphragm and Gasket . nickel net electrode Significantly Influence Current density and electrolysis efficiency , about occupy system cost of28% .
proton exchange membrane Electrolyzer
pass use proton exchange membrane〔PEM〕 this one solid state electrolyte substitute Tradition alkaline Electrolyzer middle membrane and liquid electrolyte , Carefully build , accomplish Got it electrolysis Craftsmanship of Significantly optimization and promote as well as efficiency of promote , thereby exist energy Convert and Chemical aspect have superior of complex and fine of techinque level comprehensive field bring revolutionary of Variety , thorough and profound !
advantage : electrolysis efficient , internal structure compact , Current density high , hydrogen purity high , responding speed quick . Be applicable At variable energy , but because rely iridium , platinum and titanium wait expensive of Metal , cost Compare high .
Material : use iridium net , platinum net , titanium net electrode replace nickel net .
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