Indian Oil Issues Empanelment Tender for Solar Power Projects

Southern Railway Seeks Bids for 1.2 MW Rooftop Solar Projects in Chennai

Husk Secures $4 Million from Electrifi to Scale up Mini Grids in Rural India

Doubling Transmission Capacity of Existing Grid Through Reconductoring: Report

Daily News Wrap-Up: BJP, Congress Bet Big on Renewables in Election Manifestos

As ISTS Waiver Nears End, Developers Need Extension Amid Lack of Substations

Mahindra Susten to Develop 150 MW Open Access Renewable Power Project

BJP, Congress Bet Big on Renewables in 2024 Election Manifestos

Daily News Wrap-Up: REIL Invites Bids for 200,000 Mono PERC Solar Cells

Solar, Storage, Wind Drive 95% of US Interconnection Queues as Backlog Rises


					<table id="amazon-polly-audio-table">
						<tr>
						<td id="amazon-polly-audio-tab">
							<div id="amazon-ai-player-label">Listen to this article</div>
							<div id="amazon-ai-player-container">
			<audio class="amazon-ai-player" id="amazon-ai-player" preload="none" controls   controlsList="nodownload" >
				<source type="audio/mpeg" src="https://cms.mercomindia.com/wp-content/uploads/2023/05/amazon_polly_54210.mp3?version=1684501074">
			</audio>
		</div>
							<div id="amazon-polly-subscribe-tab"></div>
							<div id="amazon-polly-by-tab"></div>
						</td>
						</tr>
					</table><p>Researchers at the Indian Institute of Technology (<a href="https://www.iitm.ac.in/" target="_blank" rel="noopener">IIT Madras</a>) have said that all-organic redox flow batteries (NORFBs) could achieve enhanced energy density, stability, and solubility by introducing pyrylium salt into the mix.</p>
<p>This development could pave the way for cleaner and more efficient grid energy storage systems.</p>
<p>The team’s research focuses on non-aqueous all-organic redox flow batteries (NORFBs), which have gained significant interest due to their environmental friendliness and higher energy density than aqueous batteries.</p>
<p>The prototype NORFB developed by the researchers exhibited promising results, operating at a high current density of 40 mA cm-2.</p>
<p>It also demonstrated stability with 60 stable galvanostatic charge-discharge (GCD) cycles and an average coulombic efficiency of 97%.</p>
<p>The key component of a redox flow battery is the redox-active organic molecule (ROM), which stores and releases energy.</p>
<p>However, conventional ROMs often have limitations such as low solubility and poor mass and charge transfer kinetics, leading to low current and energy densities.</p>
<p>To address these challenges, the researchers introduced the use of pyrylium salt in NORFBs for the first time.</p>
<p>Pyrylium salts are widely employed in synthetic organic chemistry as photocatalysts and precursors for various applications. By utilizing two different chemical components – 2,4,6-triphenylpyrylium tetrafluoroborate (TPT), as the anolyte and N-decyl phenothiazine (DPTZ) as the catholyte, the researchers constructed the NORFB.</p>
<p>The study demonstrated that TPT offers high solubility, reversibility, and improved stability, which are crucial factors for achieving high energy density and cyclability in redox flow batteries.</p>
<p>The researchers also noted that the 2nd, 4th, and 6th positions of pyrylium salt provide a versatile platform for tailoring the electrochemical activity and stability of the ROMs.</p>
<p>Ragupathy, an associate professor and principal scientist at the Redox Flow Battery Research Group, <a href="https://cecri.res.in/Default.aspx" target="_blank" rel="noopener">CSIR</a>-Central Electrochemical Research Institute, emphasized that the use of non-aqueous solvents with a wider electrochemical potential window, along with low-cost and abundant redox-active organic materials, makes NORFBs an attractive option for grid energy storage applications.</p>
<p>The successful implementation of TPT as the anolyte also highlights its solubility, reversibility, and improved stability, which are crucial for achieving high energy density and cyclability in redox flow batteries.</p>
<p>Furthermore, the study showed that by modifying substituents at different positions of pyrylium salts, it is possible to fine-tune the redox behavior and stability of ROMs, providing a versatile platform for further exploration in this field.</p>
<p>Last year, researchers at the Chinese Academy of Sciences (CAS) <a href="https://mercomindia.com/researchers-claim-aqueous-redox-flow-battery-for-renewable-storage/" target="_blank" rel="noopener">claimed</a> to have built a stable kilowatt-scale aqueous redox flow battery with high-performance organic redox-active molecules for renewable storage.</p>
<p>In the same month, researchers at the University of Sydney <a href="https://mercomindia.com/researchers-claim-sodium-sulfur-battery-potent-than-lithium-ion/" target="_blank" rel="noopener">claimed</a> to have developed a new, low-cost sodium-sulfur battery with four times the energy capacity of lithium-ion batteries.</p>
<div class="saboxplugin-wrap" itemtype="http://schema.org/Person" itemscope itemprop="author"><div class="saboxplugin-tab"><div class="saboxplugin-gravatar"></div><div class="saboxplugin-authorname"><a href="https://cms.mercomindia.com/author/gautamee-hazarika/" class="vcard author" rel="author"><span class="fn">Gautamee Hazarika</span></a></div><div class="saboxplugin-desc"><div itemprop="description"><div class="designboxt">
<p><img class="alignleft" style="border-radius: 50%;height: 50px;margin-top: -4px;border: 1px solid #00b451" src="https://mercomindia.s3.ap-south-1.amazonaws.com/wp-content/uploads/2022/10/Picture1.jpg" width="50" /></p>
<p><strong style="text-decoration: underline">Gautamee,</strong> Staff reporter at Mercom India<br />
<a href="https://mercomindia.com/author/gautamee-hazarika/" target="_blank" rel="noopener">More articles from Gautamee.</a><br />
<br />
<a href="gautamee@mercomindia.com" target="_blank" rel="noopener">gautamee@mercomindia.com</a></p>
</div>
<div class="authorboxn"><img class="alignleft" src="https://mercomindia.s3.ap-south-1.amazonaws.com/wp-content/uploads/2022/10/Picture1.jpg" width="102" height="102" /><a href="https://mercomindia.com/author/gautamee-hazarika/" rel="noopener">Gautamee</a> is a reporter at Mercom India. Prior to Mercom, Gautamee was working as a multimedia news journalist at ThePrint in New Delhi. She has received her Bachelors in English Honors and Masters in English Literature from St.Stephen&#8217;s College, University of Delhi.<a href="https://mercomindia.com/author/gautamee-hazarika/" rel="noopener">More articles from Gautamee</a></div>
</div></div><div class="clearfix"></div></div></div>

IIT Madras Finds Pyrylium Salt Enhances Redox Flow Batteries’ Capabilities

<p>Researchers from the Massachusetts Institute of Technology (<a href="https://www.mit.edu/" target="_blank" rel="noopener">MIT</a>) have developed a novel electrode material that they believe can be integrated into a semi-solid battery to store renewable energy cost-effectively.</p>
<p>The thick black material comprises a mixture of dispersed manganese dioxide (MnO2) particles with an electrically conductive additive in carbon black. When the mixture is pumped from the tanks toward the membrane, the carbon black reacts with a conductive zinc solution to efficiently convert chemical energy into electricity.</p>
<p>A rechargeable zinc-manganese dioxide (Zn-MnO<sub>2</sub>) battery featuring this mixture was tested alongside other energy storage systems, with the team looking to see how they compared in terms of operational costs. They calculated the costs of running this semi-solid flow battery across eight, 24, and 72-hour durations. The team found that the semi-solid flow battery featuring this mixture outperformed other long-duration energy storage contenders like vanadium redox flow and lithium-ion batteries.</p>
<p>While other flow battery systems in contention, such as the vanadium redox flow battery, offer the storage capacity and energy density to back up megawatt and larger power systems, they depend on expensive chemical ingredients that make them bad bets for long-duration purposes.</p>
<p>“We performed a comprehensive, bottom-up analysis to understand how the battery’s composition affects performance and cost, looking at all the trade-offs. We showed that our system can be cheaper than others and can be scaled up,” said Thaneer Malai Narayanan, Battery and Hydrogen Researcher, MIT.</p>
<p>The duration of time that flow batteries can discharge, releasing the stored electricity, is determined by the volume of positively and negatively charged electrolyte solutions streaming through the stack. In theory, as long as these solutions keep flowing, reacting, and converting the chemical energy to electrical energy, the battery systems can provide electricity.</p>
<p>“The subsequent step is to take our battery system and construct it up,” says Narayanan. “Our analysis additionally factors the best way to different chemistries that might be developed below the semi-solid circulation battery platform, so we might be seeing this sort of expertise used for vitality storage in our lifetimes.”</p>
<p>Researchers at TU Graz University claimed that they had <a href="https://mercomindia.com/researchers-develop-redox-flow-battery/" target="_blank" rel="noopener">developed</a> a redox flow battery that utilizes conventional vanillin instead of liquid electrolyte.</p>
<p>Scientists from Friedrich Schiller University said they had <a href="https://mercomindia.com/researchers-polymer-redox-flow-batteries/" target="_blank" rel="noopener">developed</a> a new polymer electrolyte for redox flow batteries that enhances efficiency and heat-resistance capacity.</p>
<div class="saboxplugin-wrap" itemtype="http://schema.org/Person" itemscope itemprop="author"><div class="saboxplugin-tab"><div class="saboxplugin-gravatar"></div><div class="saboxplugin-authorname"><a href="https://cms.mercomindia.com/author/arjun-joshi/" class="vcard author" rel="author"><span class="fn">Arjun Joshi</span></a></div><div class="saboxplugin-desc"><div itemprop="description"><div class="designboxt">
<p><img class="alignleft" style="border-radius: 50%;height: 50px;margin-top: -4px;border: 1px solid #00b451" src="https://mercomindia.s3.ap-south-1.amazonaws.com/wp-content/uploads/2022/04/Arjun-Joshi-1.png" width="50" /></p>
<p><strong style="text-decoration: underline">Arjun Joshi,</strong> Staff reporter at Mercom India<br />
<a href="https://mercomindia.com/author/arjun-joshi/" target="_blank" rel="noopener">More articles from Arjun Joshi.</a></p>
</div>
<div class="authorboxn">
<p><img class="alignleft" src="https://mercomindia.s3.ap-south-1.amazonaws.com/wp-content/uploads/2022/04/Arjun-Joshi-1.png" width="86" height="102" /><a href="https://mercomindia.com/author/arjun-joshi/" target="_blank" rel="noopener"><strong style="color: #00b451">Arjun Joshi</strong> </a>is a staff reporter at Mercom India. Before joining Mercom, he worked as a technical writer for enterprise resource software companies based in India and abroad. He holds a bachelor’s degree in Journalism, Psychology, and Optional English from Garden City University, Bangalore. <a href="https://mercomindia.com/author/arjun-joshi" target="_blank" rel="noopener">More articles from Arjun Joshi.</a></p>
<p style="height: 17px">
</div>
</div></div><div class="clearfix"></div></div></div>

New Novel Electrode Material to Unlock Affordable Renewable Energy Storage: MIT

redox-flow

Get the most relevant India solar and clean energy news.

RECENT POSTS