Production of Ni65Cr15P16B4 Metallic Glass-Coated Bipolar Plate for Fuel Cell by High Velocity Oxy-Fuel (HVOF) Spray Coating Method
Production of Ni65Cr15P16B4 Metallic Glass-Coated Bipolar Plate for Fuel Cell by High Velocity Oxy-Fuel (HVOF) Spray Coating Method
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DOI：
10.2320/matertrans.maw201006
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发表时间：
2010-09-01
影响因子：
1.2
通讯作者：
Inoue, Akihisa
中科院分区：
文献类型：
--
作者：
Kim, Sung-chul;Yamaura, Shin-ichi;Inoue, Akihisa
本研究采用在Al板上喷涂Ni65Cr15P16B4金属玻璃合金的方法制备了新型质子交换膜燃料电池（PEMFC）双极板。由于Ni65Cr15P16B4金属玻璃具有优异的耐腐蚀性，因此采用Ni65Cr15P16B4金属玻璃作为涂层材料，并采用高速氧燃料（HVOF）涂层在具有1双极板流场的Al板上沉积金属玻璃由HVOF喷雾产生，在模拟PEMFC环境下，研究了Ni65Cr15P16B4玻璃合金膜的腐蚀电流密度比高耐腐蚀不锈钢SUS316L低，然后用本研究生产的Ni65Cr15P16B4玻璃合金包覆双极板进行了单电池的发电测试，结果表明，具有金属玻璃包覆双极板的单电池和具有金属玻璃包覆双极板的电池具有非常高的I-V性能在200 mA cm（-2）的恒定电流密度下进行了24 h的长时间耐久性测试，结果表明，带有玻璃涂层双极板的单电池在测试过程中没有电压下降。因此，本研究发现，通过HVOF喷涂生产的Ni65Cr15P16B4玻璃合金涂层双极板具有实际应用于燃料电池的潜力[doi 10.2320/matertrans MAW201006]
In this study the newly designed bipolar plate for proton exchange membrane fuel cells (PEMFC) was produced by spray-coating the Ni65Cr15P16B4 metallic glassy alloy on Al plate The Ni65Cr15P16B4 metallic glass was adopted as a coating material because of its excellent corrosion resistance and the high velocity oxy-fuel (HVOF) spray coating was used for the metallic glass deposition on the Al plates having 1 bipolar plate flow fieldThe corrosion resistance of the Ni65Cr15P16B4 glassy alloy film produced by the HVOF spray, coating is as studied under simulated PEMFC environments As a result the Ni65Cr15P16B4 glassy alloy film showed lower corrosion current density than the high-corrosion-resistant stainless steel SUS316L Then the electricity generation tests with the single cell having the Ni65Cr15P16B4 glassy alloy-coated bipolar plates produced in this study were conducted As a result the single cell with the metallic glass-coated bipolar plates showed very high I-V performance as well as the cell with the carbon bipolar plates The long time durability tests for 24 h were also conducted at the constant curt cot density of 200 mA cm(-2) As a result, the single cell with the glass-coated bipolar plates showed no voltage drop during the test So it was found in this study that the Ni65Cr15P16B4 glassy alloy coated bipolar plate produced by the HVOF spray-coating has c a potential for practical use tor the fuel cells [doi 10.2320/matertrans MAW201006]