Redox Flow Battery Sebagai Perangkat Penyimpanan Energi

2021 ◽  
Vol 2 (2) ◽  
pp. 63-71
Author(s):  
Septiani Silitonga ◽  
Ricky Therisno ◽  
Richard A.M. Napitupulu ◽  
Charles S.P. Manurung ◽  
Parulian Siagian ◽  
...  
Keyword(s):  
Energy Resources ◽  
Cycle Performance ◽  
Redox Flow Battery ◽  
Renewable Energy Resources ◽  
Term Operation ◽  
Redox Flow Batteries ◽  
Major Constraint ◽  
Battery Capacity ◽  
Vanadium Redox

Energy storage such as vanadium redox flow batteries (VRFB) has increased to store renewable energy resources in the last decade. However, the unbalanced crossover level of vanadium is often a major constraint which has a significant impact on battery capacity and life cycle in long-term operation. Performing an asymmetric electrolyte volume is one of many ways to solve this problem. The different volumes on the positive and negative sides were analyzed to see their effect in suppressing the decrease in VRFB capacity. With the result of the optimal electrolyte excess ratio, long-term cycle performance was carried out to investigate the reduction in capacity of VRFBs.

Long-Term Structural and Chemical Stability of Carbon Electrodes in Vanadium Redox Flow Battery

2021 ◽  
Author(s):  
Bhuvaneswari M. Sivakumar ◽  
Venkateshkumar Prabhakaran ◽  
Kaining Duanmu ◽  
Edwin Thomsen ◽  
Brian Berland ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Vanadium Redox Flow Battery ◽  
Carbon Electrodes ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Vanadium Redox

Synthesis and investigation of imidazolium functionalized poly(arylene ether sulfone)s as anion exchange membranes for all-vanadium redox flow batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (8) ◽  
pp. 6029-6037 ◽  
Author(s):  
Di Lu ◽  
Lele Wen ◽  
Feng Nie ◽  
Lixin Xue
Keyword(s):  
Anion Exchange ◽  
Vanadium Redox Flow Battery ◽  
Anion Exchange Membranes ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Redox Flow Batteries ◽  
Arylene Ether ◽  
Flow Batteries ◽  
Vanadium Redox

A serials of imidazolium functionalized poly(arylene ether sulfone) as anion exchange membranes (AEMs) for all-vanadium redox flow battery (VRB) application are synthesized successfully in this study.

Climate change effects on marine renewable energy resources and environmental conditions for offshore aquaculture in Europe

2020 ◽  
Author(s):  
Carlos V C Weiss ◽  
Melisa Menendez ◽  
Bárbara Ondiviela ◽  
Raúl Guanche ◽  
Iñigo J Losada ◽  
...  
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Environmental Conditions ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Energy Potential ◽  
Holistic View ◽  
Marine Renewable Energy ◽  
Offshore Aquaculture

Abstract The development of the marine renewable energy and offshore aquaculture sectors is susceptible to being affected by climate change. Consequently, for the long-term planning of these activities, a holistic view on the effects of climate change on energy resources and environmental conditions is required. Based on present climate and future climate scenario, favourable conditions for wind and wave energy exploitation and for farming six marine fish species are assessed using a suitability index over all European regional seas. Regarding available energy potential, the estimated changes in climate do not have direct impacts on the geographic distribution of potential regions for the energy industry (both wind and wave based), that is they pose no threat to this industry. Long-term changes in environmental conditions could however require adaptation of the aquaculture sector and especially of its exploitation areas. Opportunities for aquaculture expansion of the assessed species are identified. Possibilities for co-location of these activities are observed in the different climate scenarios. The evaluation of potential zones for the exploitation of marine renewable energy resources and offshore aquaculture represents a stepping-stone, useful for improving decision-making and assisting in the management of marine economies both in the short-term and in the long-term development of these sectors.

Long-Term Stability of Nafion Hybrid Membranes for Use in Vanadium Redox-Flow Batteries

2019 ◽  
Vol 28 (30) ◽  
pp. 167-177 ◽  
Author(s):  
Julia Drillkens ◽  
Dominik Schulte ◽  
Dirk Uwe Sauer
Keyword(s):  
Hybrid Membranes ◽  
Term Stability ◽  
Long Term Stability ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Numerical study of effect of membrane properties on long-cycle performance of vanadium redox flow batteries

2016 ◽  
Vol 4 (4) ◽  
pp. 285-297
Author(s):  
Zi Wei ◽  
N.A. Siddique ◽  
Dong Liu ◽  
Shambhavi Sakri ◽  
Fuqiang Liu
Keyword(s):  
Numerical Study ◽  
Membrane Properties ◽  
Cycle Performance ◽  
Long Cycle ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

RuO2/MWCNT/ stainless steel mesh as a novel positive electrode in vanadium redox flow batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (84) ◽  
pp. 68378-68384 ◽  
Author(s):  
Fereydoon Gobal ◽  
Masoud Faraji
Keyword(s):  
Stainless Steel ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Stainless Steel Mesh ◽  
Half Cell ◽  
Redox Flow Batteries ◽  
Steel Mesh ◽  
Vanadium Redox ◽  
Positive Half

The present work describes the preparation and electrochemical characterization of RuO2/MWCNT/Stainless Steel Mesh (SSM) electrode as compared with a MWCNT/SSM electrode in the positive half-cell of a Vanadium Redox Flow Battery (VRFB).

Trend analysis of Icelandic discharge, precipitation and temperature series

2006 ◽  
Vol 37 (4-5) ◽  
pp. 365-376 ◽  
Author(s):  
Jóna Finndís Jónsdóttir ◽  
Páll Jónsson ◽  
Cintia B. Uvo
Keyword(s):  
Time Series ◽  
Kendall Test ◽  
Temperature Series ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Energy Research ◽  
Daily Discharge ◽  
Spring Temperatures ◽  
The Impact

This study is a part of a Nordic co-operative research project, Climate and Energy, funded by Nordic Energy Research and the Nordic energy sector. The project has the objective of a comprehensive assessment of the impact of climate change on Nordic renewable energy resources including hydropower, wind power, biofuels and solar energy. In this paper, the long term variability of precipitation, temperature and discharge of Icelandic rivers is analyzed with respect to trends. Trend is tested for two periods: 1941–2002, since the longest Icelandic discharge records reach 60 years back in time, and 1961–2000, so that a larger set of discharge records could be included, as only a few Icelandic discharge records extend more than 40 years back in time. An eventual trend in the time series is analyzed using the Mann–Kendall test. The test is applied to the time series of both annual and seasonal values, and also to the timing and volume of the maximum daily discharge in spring and autumn, respectively. The main conclusions from the study are that, despite significant increase in measured precipitation, discharge in non-glacial rivers has not increased. Meanwhile, spring temperatures have a negative trend and spring floods, therefore, are larger and delayed.

scholarly journals Segmented Printed Circuit Board Electrode for Locally-resolved Current Density Measurements in All-Vanadium Redox Flow Batteries

Batteries ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 38 ◽  
Author(s):  
Gerber ◽  
Fischer ◽  
Pinkwart ◽  
Tübke
Keyword(s):  
Current Density ◽  
Printed Circuit Board ◽  
Current Density Distribution ◽  
Circuit Board ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Printed Circuit ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

One of the most important parameters for the design of redox flow batteries is a uniform distribution of the electrolyte solution over the complete electrode area. The performance of redox flow batteries is usually investigated by general measurements of the cell in systematic experimental studies such as galvanostatic charge-discharge cycling. Local inhomogeneity within the electrode cannot be locally-resolved. In this study a printed circuit board (PCB) with a segmented current collector was integrated into a 40 cm2 all-vanadium redox flow battery to analyze the locally-resolved current density distribution of the graphite felt electrode. Current density distribution during charging and discharging of the redox flow battery indicated different limiting influences. The local current density in redox flow batteries mainly depends on the transport of the electrolyte solution. Due to this correlation, the electrolyte flow in the porous electrode can be visualized. A PCB electrode can easily be integrated into the flow battery and can be scaled to nearly any size of the electrode area. The carbon coating of the PCB enables direct contact to the corrosive electrolyte, whereby the sensitivity of the measurement method is increased compared to state-of-the-art methods.

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