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					</table><p>A recent study by the Karlsruhe Institute of Technology (<a href="https://www.kit.edu/english/" target="_blank" rel="noopener">KIT</a>) has shown that the formation of the solid electrolyte interphase, which is crucial for the functioning of lithium-ion batteries, occurs through the aggregation of solutions rather than directly at the electrode.</p>
<p>The findings offer insights into developing more efficient and long-lasting batteries in the future.</p>
<p>The researchers reached this conclusion through simulations, and the results of their study have been published in the <em>Advanced Energy Materials</em> journal.</p>
<p>These batteries, including liquid electrolyte batteries, function reliably on a solid electrolyte interphase (SEI) that forms when voltage is applied for the first time.</p>
<p>The passivation layer, also known as the solid electrolyte interphase (SEI), plays a crucial role in a lithium-ion battery&#8217;s electrochemical capacity and lifetime, as it is subjected to high stress during every charging cycle.</p>
<p>When the SEI is broken down, the electrolyte is further decomposed, resulting in reduced battery capacity, ultimately determining the battery&#8217;s lifetime.</p>
<p>Controlling the properties of a battery requires a thorough understanding of the SEI&#8217;s growth and composition. However, hitherto no approach has been able to decipher SEI&#8217;s complex growth processes at broad scales and dimensions.</p>
<p>It has remained a mystery how the particles in the electrolytes form a passivation layer up to 100 nanometers thick on the surface of the electrode, as the decomposition reaction is only possible within a few nanometers distance from the surface.</p>
<p>The new study from KIT has successfully characterized the formation of the solid electrolyte interphase (SEI) using a multi-scale approach, solving a major mystery regarding the functioning of liquid electrolyte batteries.</p>
<p>To understand the formation and properties of the passivation layer in liquid electrolyte batteries, KIT&#8217;s Institute of Nanotechnology conducted over 50,000 simulations with various reaction conditions.</p>
<p>The team discovered that the SEI follows a solution-mediated pathway, where SEI precursors formed directly at the surface join far away from the electrode surface via nucleation.</p>
<p>This process forms a porous layer that eventually covers the electrode surface.</p>
<p>Researchers can develop suitable electrolytes and additives to control SEI properties and optimize battery performance and lifespan by identifying key reaction parameters that determine SEI thickness.</p>
<p>Recently, researchers at the Shandong Academy of Medical Sciences, China, and Kyushu Institute of Technology, Japan, <a href="https://mercomindia.com/crab-shells-could-power-rechargeable-batteries/" target="_blank" rel="noopener">upcycled</a> crab shells into porous, carbon-filled materials with various uses, including crab carbon, to create anode materials for sodium-ion batteries.</p>
<p>Earlier this month, researchers at South Korea&#8217;s Ulsan National Institute of Science and Technology <a href="https://mercomindia.com/perovskite-alkylammonium-26-08-efficiency/" target="_blank" rel="noopener">developed</a> a perovskite solar cell using alkylammonium chloride to control the formation of defects in the perovskite layer.</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 />
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<a href="gautamee@mercomindia.com" target="_blank" rel="noopener">gautamee@mercomindia.com</a></p>
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<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>
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KIT Researchers Discover a New Solution to Battery Passivation Puzzle

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