Long Term Operation of Rechargeable High Temperature Solid Oxide Batteries

Leonide, André; Drenckhahn, W.; Greiner, H.; Landes, Harald

doi:10.1149/2.0741409jes

Cited by 34 publications

(19 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It appears that its performance, round-trip efficiency, and cycle stability require further improvement. In long-term charging and discharging experiments, these batteries [25] demonstrate average degradation, which leads to more than 40% charging material after 10,000 charging cycles. On average, as it is analysed, solid oxide fuel cell materials also degrade to a certain degree [26].…”

Section: Smart Grids and Energy Hydrogen Storagementioning

confidence: 99%

Hydrogen Storage Technologies for Smart Grid Applications

Lazarou¹,

Makridis²

2017

Challenges

View full text Add to dashboard Cite

Abstract:The electricity sector is among the main contributors to carbon emissions. This sector has the potential to reduce its carbon emissions through producing electric energy from zero-emitting facilities and optimizing consumption to better accommodate low-carbon emissions. The use of hydrogen combined with smart grids, as analyzed in this manuscript, can substantially contribute to climate change mitigation.

show abstract

Section: Smart Grids and Energy Hydrogen Storagementioning

confidence: 99%

Hydrogen Storage Technologies for Smart Grid Applications

Lazarou¹,

Makridis²

2017

Challenges

View full text Add to dashboard Cite

show abstract

“…There are two main reasons for this relatively balanced redox reaction: 1) a more balanced H 2 For the 800 o C-battery, the effect of e o on battery's cycle performance is shown in Fig.5 (b) . It is worth mentioning that the nature of Nernst potential being proportional to ln(P H2O /P H2 ) not directly to P H2O /P H2 implies that it is more sensitive to P H2 at higher DoD.…”

Section: The Effect Of Current Densitymentioning

confidence: 99%

Analysis of Performance Limiting Factors in Solid-Oxide Iron-Air Redox Battery Operated with Different Redox Couples

et al. 2015

View full text Add to dashboard Cite

The present computational study investigates the factors limiting the performance of a newly developed solid oxide iron-air redox battery (SOMARB) operated at 800 and 500 o C, thus with different redox couples, viz. Fe/FeO for 800 o C and Fe/Fe 3 O 4 for 550 o C. The multiphysics model established is considered high fidelity since it has been validated by experimental data obtained under conditions similar to the simulations. The effects of current density, initial porosity of redox cycle unit (RCU), distance between Reversible Solid Oxide Fuel Cell (RSOFC) and RCU, and depth of discharge on the battery's performance have been systematically studied. It is found that the performance limiting factor is the electrolysis electro-kinetics of RSOFC for the 800 o C-battery and Fe 3 O 4 -reduction kinetics of RCU for the 550 o C-battery, respectively. Strategies with the goal of achieving a balanced energy capacity and cycle efficiency are also proposed.

show abstract

“…The battery was continuously cycled 100 times and a gradual decline in performance was observed. Leonide et al [28] reported the results of a long-term operation test of a short stack at a constant temperature of 800 o C. They observed a decrease in the discharge capacity but nearly 40% of the storage metal remained active even after 10,000 cycles. Although there are still problems to be solved to minimize the degradation, these experimental results are generally encouraging.…”

Section: Introductionmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Long Term Operation of Rechargeable High Temperature Solid Oxide Batteries

Abstract: A novel rechargeable high temperature metal -air battery based on the planar solid oxide fuel cell technology has been developed [H.

Cited by 34 publications

References 19 publications

Hydrogen Storage Technologies for Smart Grid Applications

Hydrogen Storage Technologies for Smart Grid Applications

Analysis of Performance Limiting Factors in Solid-Oxide Iron-Air Redox Battery Operated with Different Redox Couples

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

Contact Info

Product

Resources

About