Oxidation rate of Fe and electrochemical performance of Fe–air solid oxide rechargeable battery using LaGaO3 based oxide ion conductor

RSC Advances ◽  
2013 ◽  
Vol 3 (23) ◽  
pp. 8820 ◽  
Author(s):  
Atsushi Inoishi ◽  
Yohei Okamoto ◽  
Young-Wan Ju ◽  
Shintaro Ida ◽  
Tatsumi Ishihara
2015 ◽  
Vol 3 (16) ◽  
pp. 8260-8264 ◽  
Author(s):  
A. Inoishi ◽  
J. Hyodo ◽  
H. Kim ◽  
T. Sakai ◽  
S. Ida ◽  
...  

We investigated a catalyst for oxidation of Fe powder using steam and it was applied to a Fe–air rechargeable battery based on the low temperature operating Solid Oxide Fuel Cells technology.


2019 ◽  
Vol 7 (44) ◽  
pp. 25503-25510 ◽  
Author(s):  
Matthew S. Chambers ◽  
Kirstie S. McCombie ◽  
Josie E. Auckett ◽  
Abbie C. McLaughlin ◽  
John T. S. Irvine ◽  
...  

Ba3NbMoO8.5 has recently been demonstrated to exhibit competitive oxide ion conductivity and to be stable under reducing conditions, making it an excellent potential electrolyte for solid oxide fuel cells.


2014 ◽  
Vol 783-786 ◽  
pp. 1680-1685
Author(s):  
Tatsumi Ishihara ◽  
Atsushi Inoishi ◽  
Sintaro Ida

The combination of solid oxide fuel cell technology with Fe-air battery concept was proposed by using H2/H2O as a redox mediator and LaGaO3based oxide for electrolyte. Since large internal resistance and large degradation during charge and discharge cycles are observed on anode, improvement in discharge potential and cycle stability are strongly required by improving stability of anode. In this study, cermet anode consisting of Ni-Fe alloy combined with oxide ion conductor was investigated. It was found that by using cermet anode of Ni-Fe combined with Ce0.6Mn0.3Fe0.1O2(CMF), the observed energy density of the cell is improved to be 1109 Wh/Kg-Fe at 10 mA/cm2, 873 K, which is about 92% of the theoretical energy density assuming the formation of Fe3O4(1290 Wh/Kg-Fe). Cycle stability was also much improved on the cell using Ni-Fe-CMF anode comparing with that of Ni-Fe metal because of suppressed aggregation of Ni by mixing with CMF. Electrochemical charge-discharge measurement at 773 K showed excellent cycle stability over 30 cycles with high energy density (Round trip efficiency is higher than 80 %). The excellent performance and stability with operating at lower temperature promise this Fe-air solid oxide battery as the next generation energy storage device for averaging electricity and electric vehicle.


2014 ◽  
Vol 7 (5) ◽  
pp. 1680-1684 ◽  
Author(s):  
Tao Wei ◽  
Preetam Singh ◽  
Yunhui Gong ◽  
John B. Goodenough ◽  
Yunhui Huang ◽  
...  

A new solid oxide-ion conductor Sr3−3xNa3xSi3O9−1.5x (x = 0.45) exhibits the highest oxide-ion conductivity with the lowest activation energy among all the known chemically stable oxide-ion conductors.


1998 ◽  
Vol 145 (9) ◽  
pp. 3177-3183 ◽  
Author(s):  
Tatsumi Ishihara ◽  
Miho Honda ◽  
Takaaki Shibayama ◽  
Hiroaki Minami ◽  
Hiroyasu Nishiguchi ◽  
...  

2014 ◽  
Vol 262 ◽  
pp. 310-315 ◽  
Author(s):  
Atsushi Inoishi ◽  
Takaaki Sakai ◽  
Young Wan Ju ◽  
Shintaro Ida ◽  
Tatsumi Ishihara

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