Energy efficiency of an intermediate-temperature solid oxide iron–air redox battery

Jin, Xinfang; Zhao, Xuan; Tong, Jingjing; Yasmeen, Farzana; White, Ralph E.; Huang, Kevin

doi:10.1016/j.est.2015.07.001

Cited by 13 publications

(7 citation statements)

References 44 publications

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“…Ref. [39], as well as in the recent study on SOIAB system with different system configuration [40]. Although these assumptions leave space for further development of the analysis, they have only limited effects on the fundamental characteristics of the system discussed in this paper.…”

Section: Assumptions and Conditionsmentioning

confidence: 91%

“…To further reduce the heat input, the use of a regenerator (a storage-type heat exchanger) that recovers the heat exhausted during the discharge process is also an attractive method. Recently the simulation study of round-trip efficiency of an SOIAB system with a heat exchanger and thermal storage was published [40]. Considering the heat-loss penalty of a small-scale regenerator, however, the use of a regenerator will be more suitable for large-scale systems.…”

Section: Energy Budget Of Fundamental System With/without Thermal Recmentioning

confidence: 99%

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Numerical prediction of system round-trip efficiency and feasible operating conditions of small-scale solid oxide iron–air battery

Ohmori

Itakura

Saito

et al. 2016

Journal of Power Sources

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A simulation model of a small-scale solid oxide iron-air battery system was developed to clarify its fundamental characteristics and feasibility from the view point of energy efficiency. The energy flow in one cycle of charge/discharge operations was evaluated under a quasi-state assumption with 0-dimentional models of the system components, i.e., a solid oxide electrochemical cell, an iron (Fe) box and heat exchangers. Special care was taken when considering thermal aspects; not only a simple system but also a more complicated system with thermal recirculation by three heat exchangers was investigated. It was found that the system round-trip efficiency reaches 61% under the base conditions in this study. The results also show that several limitations exist for the operation parameters and conditions in view of practical applications. In particular, higher and lower limits exist for the fuel and air utilization factors under which the system operates effectively because of constraints such as the maximum allowable fuel-blower temperature and no heat input during the discharge operation.

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Section: Assumptions and Conditionsmentioning

confidence: 91%

Section: Energy Budget Of Fundamental System With/without Thermal Recmentioning

confidence: 99%

Numerical prediction of system round-trip efficiency and feasible operating conditions of small-scale solid oxide iron–air battery

Ohmori

Itakura

Saito

et al. 2016

Journal of Power Sources

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show abstract

“…This technology has many advantages over conventional counterparts in energy-density, rate-capacity, cost, safety, and system integration. Since the first report in 2011 [13], electrochemical performance optimization [19][20][21][22][23][24][25], new metal-air chemistries [26][27][28][29] and finite-element multiphysics modeling of SOMARB [17,18,[30][31][32][33][34][35][36][37] have been demonstrated. In particular, the basic electrochemical performances and analysis of SOMARB at high temperature (e.g.…”

Section: Introductionmentioning

confidence: 99%

Multiphysics modeling of solid-oxide iron–air redox battery: analysis and optimization of operation and performance parameters

Jin

Huang

2016

Science Bulletin

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“…Commercially available batteries for transportation and grid storage stridently demand specific energies close to 1700 Wh kg −1 to be on a par with gasoline . Recently, metal–air batteries possessing high theoretical energy densities, such as aluminum–air batteries, zinc–air batteries, magnesium–air batteries, lithium–air batteries (LABs), iron–air battery, sodium–air batteries (SABs), and potassium–air batteries, have been deemed to be the most promising candidates for future energy storage systems. Among them, LABs have aroused extensive attention owing to their theoretical energy density as high as 11 680 Wh kg −1 (3548 Wh kg −1 including oxygen), which is almost equivalent to that of gasoline (13 000 Wh kg −1 ) .…”

Section: Introductionmentioning

confidence: 99%

The Potential of Na–Air Batteries

Yin

2016

ChemCatChem

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Sodium–air batteries (SABs) have attracted wide attention in the chemistry society owing to their high energy density, abundant precursor sources, inexpensive materials and reduced manufacture costs, and environmental benignity. This review summarizes the research and progress of the rechargeable SABs based on nonaqueous and aqueous electrolytes. The effects of gas atmosphere, environmental pressure, catalysts, and architectures of the electrodes on the distribution and morphology of discharge products in SABs are also included. The complex and rich sodium electrochemistry of air electrodes is presented, and many electrochemical reaction mechanisms based on the structure design of air electrodes with various catalysts and electrolytes are also summarized. They involve the reversible formation/decomposition reactions of NaO2, Na2O2, Na2CO3, NaHCO3, Na2C2O4, and NaOH. It is a great challenge to seek for highly efficient electrocatalysts, and more stable and less volatile electrolytes to improve the cyclability of nonaqueous SABs. Internal resistance of the cell could be efficiently improved by developing solid electrolytes with high ion conductivity and optimizing the structures of the cells for the high power density of aqueous SABs. How to effectively control the growth and decomposition of discharged products at three‐phase boundary reaction zones by the integration of highly stable electrolytes and optimization of air electrodes is the next challenge urgently needing to be addressed; only then can we realize practical high performance nonaqueous SABs for daily use.

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Energy efficiency of an intermediate-temperature solid oxide iron–air redox battery

Cited by 13 publications

References 44 publications

Numerical prediction of system round-trip efficiency and feasible operating conditions of small-scale solid oxide iron–air battery

Numerical prediction of system round-trip efficiency and feasible operating conditions of small-scale solid oxide iron–air battery

Multiphysics modeling of solid-oxide iron–air redox battery: analysis and optimization of operation and performance parameters

The Potential of Na–Air Batteries

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