Electrochemical Impedace Spectroscopy (EIS) Ni-YSZ supported SOFC Ni/YSZ support Ni/YSZ electrode YSZ electrolyte LSM-YSZ electrode =10um Acc.voltage:12 kV SE image ZEISS .a以.6重
Electrochemical Impedace Spectroscopy (EIS) Ni/YSZ support Ni/YSZ electrode YSZ electrolyte LSM-YSZ electrode 10 mm Acc. voltage: 12 kV SE image Ni-YSZ supported SOFC
Electrochemical Impedace Spectroscopy (EIS) 0.4 1200Hz 12000Hz 120Hz 0.2 12 Hz poo a o/aa %00人 0.2 0.4 0.60.8 1.0 Zreal/Ωcm2 R Rs Cathode Cathode Anode Anode Anode Description Eatheor /eV Eamaisure/ev fsummit /Hz Rs Conductivity of YSZ 0.9 0.9 Arc1 Transport of O-intermediates at LSM-YSZ interface 1.0 fixed at 1.0 12,000*-62,000 Arc2 Charge transfer between Ni and YSZ 0.8 1.1 1,500*-10,000 Arc3 Diss.adsorption of O2 and transport to TPB 1.5-2 fixed at 1.6 150*-1,100 Arc4+5 Diffusion and gas conversion at anode =0 fixed at 0 50and3.6 FUEL CELLS06,2006,No.2,141-145
Electrochemical Impedace Spectroscopy (EIS) FUEL CELLS 06, 2006, No. 2, 141–145
Electrochemical Impedace Spectroscopy (EIS) 0.7 a 0.6 Good cell 0.5 700°C 850C 04 Good cell Poor cell Poor Good cell Poor cell Poor 0.3 1200Hz 120Hz PSC4590 PSC4131 Good PSC4590 PSC4131 Good 0.2 kHz 0.1 R 0.137 0.380 2.8 0.032 0.131 4.1 Arc 1 0.224 0.353 1.6 0.046 0.074 1.6 0.0 Arc 2 0.240 0.356 1.5 0.046 0.075 1.6 0.2 0.4 0.6 0.81.01.21.41.6 Arc 3 0.360 0.512 1.4 0.028 0.060 2.1 Zreal (cm2) Arc 4 0.016 0.031 1.9 0.016 0.030 1.9 Arc 5 0.056 0.056 1 0.056 0.060 0.7 1.1 Poor cell (b Arc 1+3 0.584 0.865 1.5 0.074 0.134 1.8 6 0.5 Riot,EIS」 1.033 1.688 1.6 0.224 0.430 1.9 1800 120Hz ASRiv 1.04 1.70 1.6 0.23 0.40 1.7 0.3 02 18 kHz 0 0.0 1 2 3 0.2 0.4 0.6 0.81.01.21.41.6 Zreal (ocm?) Journal of The Electrochemical Society,154 4 B371-B378 2007
Electrochemical Impedace Spectroscopy (EIS) Journal of The Electrochemical Society, 154 4 B371-B378 2007
Electrochemical Impedace Spectroscopy (EIS) 211 Hz-1 mHz 904S0C 10%50G R -M iga Ra ige 50%S0C 0 68 Ra Ra 1012 Z'/mn (a)一阶RC模型 b)二阶RC模型 electronic,ionic conducton through composite C 015 C Uo R 0.1 Rya U eumons 50μHz W Ra 0.05 1 mHz 0 EIS of a traction battery .05 0.15 0.2 10 kHz Re(Z)
Electrochemical Impedace Spectroscopy (EIS) EIS of a traction battery
FC Thermal Cycling Performance TC TC10 TC20 C30 TC40 TC50 I058 600 900 e00 500 700 [M]Jemod 400 600 300 50 400 200 3 200 100 100 0 0 30 45 25 0530 15 10 520510 5 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 130 Operating time [h] 21
21 FC Thermal Cycling Performance