Vapor pressure measurement of electrolyte solution and its impact on regeneration process in TRAB

Luo, Jielin; Wang, Zeming; Wu, Hao; Zhang, Shaozhi

doi:10.1016/j.csite.2022.102201

Cited by 6 publications

(3 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where T H is the hot side temperature (100 °C), 16,17,25,26 T L is the cold side temperature (25 °C), ΔT HE is the heat exchanger temperature difference (5 °C), 3,4 and ΔT * is the temperature difference across a single process of a multi-effect and heat recovery scheme (MEHRS) (75 °C). 3,4 Polarization curves were simulated to validate that the model cell resistance was the same as that of the experimental cell resistance and therefore matched previous experimental data.…”

Section: Methodsmentioning

confidence: 99%

Simulating Discharge Curves of an All-Aqueous TRAB to Identify Pathways for Improving System Performance

Cross,

Rau,

Gorski

et al. 2024

J. Electrochem. Soc.

View full text Add to dashboard Cite

Thermally regenerative ammonia batteries (TRABs) are an emerging technology that use low temperature heat (T < 150 °C) to recharge a flow battery that produces electrical power on demand. The all-aqueous copper TRAB can provide high power densities and thermal energy efficiencies relative to other devices that harvest energy from waste heat, but its performance is adversely impacted by the crossover of undesired species through the membrane and lower cell voltages compared to conventional batteries. In this work, we developed a numerical model to simulate discharge curves while accounting for crossover inefficiencies without tracking all electrolyte species through the membrane. The model was able to successfully reproduce discharge curves across a diverse range of battery conditions using a single fitting parameter to account for decay of electrode standard potential due to species crossover with minimal error (< 5%). The model was then used to simulate different design scenarios to estimate changes in energy output from alterations to the aspects of the battery electrolyte chemistry. Results from this study are used to identify pathways for improving future TRAB designs with respect to energy capacity and cost-effectiveness of the technology.

show abstract

Section: Methodsmentioning

confidence: 99%

Simulating Discharge Curves of an All-Aqueous TRAB to Identify Pathways for Improving System Performance

Cross,

Rau,

Gorski

et al. 2024

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…In addition, ethylenediamine and silver-based electrodes have been employed in place of ammonia and copper-based electrodes, respectively, achieving a higher anodic Coulombic efficiency and resulting in stable electricity generation over many cycles. , To generate a better power output, a bimetallic TRAB with a higher open circuit potential was constructed by copper and zinc metal electrodes . TRAB has also been adapted for the removal of copper ions and the production of electricity from wastewater, indicating great potential for extended applications. , To extend battery discharge time, measures were taken to mitigate ammonia cross-over. ,, Furthermore, early studies explored the impact of several operational factors on the thermal regeneration process of the TRAB system. , …”

Section: Introductionmentioning

confidence: 99%

“…17,26,27 Furthermore, early studies explored the impact of several operational factors on the thermal regeneration process of the TRAB system. 28,29 In addition, it is crucial to pay more attention to another key factor affecting the TRAB performance, the specific surface area of the electrode. The power density would be constrained by the restricted specific surface areas of the electrodes utilized in some earlier experiments, such as copper plates, copper meshes, and some other two-dimensional electrodes.…”

Section: ■ Introductionmentioning

confidence: 99%

Performance of a Thermally Regenerative Ammonia-Based Flow Battery with 3D Electrodes Composed of Copper Rod Arrays

Li,

Zhang,

Shi

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Considering the future practical application, a 3D electrode composed of copper rod arrays was proposed for the scale-up of a thermally regenerative ammonia-based battery (TRAB). Investigations on the effects of the array pattern and the major operating parameters were conducted. The results demonstrated that an extra-high ammonia concentration (>1.5 M) led to a performance decline, whereas increases in the electrode number and concentration of (NH4)2SO4 were favorable for the improvement of performance. In addition, the arrangement of electrode arrays would influence mass transfer and power production. Compared with TRAB-I, TRAB-S obtained 10.5% higher power generation, 55.0% higher total charge, and 77.1% higher energy density, which was due to the structure-induced enhancement of mass transfer. It was obvious that uneven current distribution was found in the two TRABs and that TRAB-S had a larger maximal current (192.75 mA). Regarding TRAB-S, the electrolyte flow rate might boost mass transfer and further performance. In addition, increasing the concentration of copper ions contributed to the improvement of thermal efficiency.

show abstract

System efficiency and power assessment of the all-aqueous copper thermally regenerative ammonia battery

et al. 2023

View full text Add to dashboard Cite

Vapor pressure measurement of electrolyte solution and its impact on regeneration process in TRAB

Cited by 6 publications

References 34 publications

Simulating Discharge Curves of an All-Aqueous TRAB to Identify Pathways for Improving System Performance

Simulating Discharge Curves of an All-Aqueous TRAB to Identify Pathways for Improving System Performance

Performance of a Thermally Regenerative Ammonia-Based Flow Battery with 3D Electrodes Composed of Copper Rod Arrays

System efficiency and power assessment of the all-aqueous copper thermally regenerative ammonia battery

Contact Info

Product

Resources

About