? ? ? ? The basic structure of a PEMEC consists of two electrodes (cathode and anode) separated by a solid polymer electrolyte called a proton exchange membrane.

? ? ? ??In PEMEC, water is electrochemically split into hydrogen at the cathode and oxygen at the anode.

? ? ? ? we can through changing?transport layers、electrocatalysts、electrolysis stack etc to improve the performance of the electrolyzer.??

? ? ? ? ?From the technical route, electrolysis of water is a green and flexible production technology for hydrogen production, with high product purity and relatively mature technology, and can use renewable energy sources such as photovoltaic power generation and wind power generation to achieve large-scale preparation of hydrogen.

劉瑋,萬燕鳴,熊亞林,陶志杰,朱艷兵.碳中和目標(biāo)下電解水制氫關(guān)鍵技術(shù)及價(jià)格平準(zhǔn)化分析[J].電工技術(shù)學(xué)報(bào),2022,37(11):2888-2896.DOI:10.19595/j.cnki.1000-6753.tces.210658 .

? ? ? ??The main hydrogen production technologies are AlkalineElectrolyzer (AE), Proton Exchange Membrane Electrolyzer (PEME) and Solid Oxide Electrolyzer (SOE).

Grigoriev S, Fateev V, Bessarabov D, et al. Currentstatus, research trends, and challenges in waterelectrolysis science and technology[J]. InternationalJournal of Hydrogen Energy, 2020, 45(49): 26036-26058.

? ? ? ??Since the 1970s, water electrolysis technology with proton exchange membrane has been developed and has become the research focus of water electrolysis technology with its high efficiency of hydrogen production, high degree of equipment integration and environmental friendliness, etc. It has gradually realized the development from miniaturization to megawatt level.

? ? ? ?Hydrogen storage can be used as a demand response resource in the electricity market.

? ? ? ? In the power market, new energy hydrogen production is a power user, and new energy hydrogen production has high dynamic response rate and wide power regulation range, which can safely and reliably produce hydrogen by electrolysis under unstable power conditions.

? ? ? ??劉詩劍.能源轉(zhuǎn)型背景下新能源制氫市場(chǎng)推廣的關(guān)鍵問題研究[D].華北電力大學(xué)(北京),2021.?

? ? ? ???After electrification, the water molecules in the electrolyte combine with the electrons in the cathode region to form hydrogen gas and hydroxide ions, and the hydroxide ions(氫氧根離子) lose their electrons in the anode region to form oxygen gas and water.

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? ? ? ? Since the use of hydrogen storage devices for smoothing is our specialty, we can add a table comparing hydrogen storage with other energy storage devices.