膜电极耐久性测试与分析数据
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数据内容：利用单池评价台测试优化方案的膜电极在动态工况下的寿命，测试过程产生的电池数据、过程分析数据等。 采集方案：所制备的膜电极组装成活性面积为25cm2的标准单电池，极板为雕刻有蛇形流程的石墨板，两块镀金铜板作为集流板。利用燃料电池测试台控制单电池运行条件，具体为：电池温度65oC，反应气为氢气和空气，反应气增湿温度为50oC，电池操作压力为1bar，反应气的化学计量比为1.5和2.5。电池运行过程中，采用电子负载控制电池的运行电流，并采集不同时间的电池电压，同时可以记录电池的温度、气量、阻抗等关键参数。测试过程中，反应气由大连化物所集中供气经气体管路直接输送到实验室，增湿水为实验室纯水机自制的18兆欧的超纯水。 采集地点：中科院大连化物所燃料电池研究室。 设备情况：Scribner 850e 单池测试 采集时间：2020.12-2022.8
Data Content: Battery data, process analysis data, and other relevant experimental data generated during the test to evaluate the lifespan of optimized membrane electrodes under dynamic operating conditions using a single-cell test bench. Collection Scheme: The prepared membrane electrode was assembled into a standard single cell with an active area of 25 cm². The bipolar plates were graphite plates engraved with serpentine flow channels, and two gold-plated copper plates served as current collectors. A fuel cell test bench was employed to control the operating parameters of the single cell, with specific settings as follows: cell temperature maintained at 65 °C, reactant gases of hydrogen and air, humidification temperature of the reactant gases set to 50 °C, cell operating pressure at 1 bar, and stoichiometric ratios of hydrogen and air at 1.5 and 2.5 respectively. During the operation of the single cell, an electronic load was used to regulate the operating current, collect the cell voltage at various time points, and record key parameters such as cell temperature, gas flow rate, and electrochemical impedance. The reactant gases for the test were directly delivered to the laboratory via gas pipelines from the centralized gas supply system of Dalian Institute of Chemical Physics, while the humidification water was ultrapure water with a resistivity of 18 MΩ produced by the laboratory's water purifier. Collection Location: Fuel Cell Research Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Equipment: Scribner 850e single cell test system Collection Time: December 2020 – August 2022
