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_54133.mp3?version=1684406755">
			</audio>
		</div>
							<div id="amazon-polly-subscribe-tab"></div>
							<div id="amazon-polly-by-tab"></div>
						</td>
						</tr>
					</table><p>Scientists at the Indian Institute of Technology (<a href="https://www.iitb.ac.in/" target="_blank" rel="noopener">IIT Bombay</a>) have claimed a breakthrough in developing sodium-ion (Na-ion) batteries by addressing the challenges of air/water instability and structural-cum-electrochemical instability in cathode materials.</p>
<p>The breakthrough has led to the creation of new air/water-stable cathode materials that exhibit exceptional electrochemical cyclic stability and resilience when exposed to air and water.</p>
<p>These advancements are expected to drive the development of cost-effective and sustainable energy storage systems for various applications, including consumer electronics, grid energy storage, renewable energy storage, and electric vehicles.</p>
<p>As the global demand for battery-driven electric vehicles continues to rise, there is a pressing need to develop a cost-effective, resource-friendly, safe, and sustainable battery system beyond the conventional lithium-ion (Li-ion) technology.</p>
<p>Given the abundance of sodium resources, the upcoming Na-ion battery system holds significant importance in India.</p>
<p><strong>Stability Challenges </strong></p>
<p>Like other alkali metal-ion battery cells, a Na-ion cell consists of cathode and anode active materials supported on metallic current collector foils.</p>
<p>These materials enable the reversible insertion and removal of the charge carrier, Na-ion, during the cell&#8217;s charge and discharge processes.</p>
<p>The performance of Na-ion batteries depends on the structural/electrochemical stability of the electrodes, Na-transport kinetics, and various dynamic resistances.</p>
<p>Despite the many advantages of Na-ion batteries, the electrochemical behavior and stability of the &#8216;layered&#8217; Na-transition-metal-oxide-based cathode materials, especially in moist environments, require significant improvements for widespread adoption.</p>
<p>The lack of stability poses challenges in handling and storing these materials and adversely affects their electrochemical performance.</p>
<p>Furthermore, the water instability necessitates the use of toxic, hazardous, and expensive chemicals like N-Methyl-2-pyrrolidone for electrode preparation instead of more environmentally friendly water-based slurries.</p>
<p><strong>Universal Design Criterion </strong></p>
<p>To address these challenges, Amartya Mukhopadhyay&#8217;s research group at the institute leveraged materials science and electrochemical principles.</p>
<p>They identified dominant factors and controlling parameters that contribute to the development of high-performance Na-ion batteries.</p>
<p>The researchers have proposed a universal design criterion that offers a path toward the successful design and widespread adoption of environmentally stable and high-performance cathodes for Na-ion batteries and beyond.</p>
<p>Their findings have been published in the journal <em>Chemical Communications</em>.</p>
<p>The conventional &#8216;layered&#8217; Na-transition-metal-oxide structure comprises alternating slabs of NaO2 and transition metal oxide.</p>
<p>Within this structure, the oxygen ions, carrying a net negative charge, are shared by the transition metal ions (TM-ions) and the sodium ions (Na-ions) in their respective layers.</p>
<p>While the TM-O bond is iono-covalent in nature, the Na-O bond is predominantly ionic.</p>
<p>The team discovered that adjusting the degree of covalency (the number of electrons that an atom gains, loses, or even shares during a chemical reaction) in the TM-O bond of the layered Na-transition-metal-oxide structure can have a significant impact on the performance and stability of Na-ion batteries.</p>
<p>Increasing the covalency strengthens the Na-O bond, leading to improved air/water stability and suppressing structural/phase transitions.</p>
<p>This enables the development of high-performance, water-stable cathodes using eco-friendly processing methods. On the other hand, reducing the covalency enhances Na-transport kinetics, increasing the power density of Na-ion batteries.</p>
<p>In October 2022, researchers of IIT Mandi <a href="https://www.mercomindia.com/iit-mandi-researchers-claim-eco-friendly-method-to-recycle-wind-turbines" target="_blank" rel="noopener">claimed</a> to have successfully used microwaves to recycle polymer composites from old wind turbine blades, using a rapid, sustainable, and comparatively eco-friendly method.</p>
<p>In December 2022, researchers at IIT Roorkee <a href="https://www.mercomindia.com/iit-roorkee-claim-17-efficiency-perovskite-solar-cells" target="_blank" rel="noopener">said</a> they had successfully developed a prototype of a low-cost, high-quality perovskite solar cell that achieved a stable power conversion efficiency of 17.05%.</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 Researchers Make Headway in Stabilizing Sodium-ion Batteries

na-ion-batteries

Get the most relevant India solar and clean energy news.

RECENT POSTS