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					</table><p>Researchers have developed a high-energy, high-power hybrid sodium-ion battery that could be a viable alternative to lithium-ion batteries.</p>
<p>Led by Jeung Ku Kang, a team from the Korea Advanced Institute of Science and Technology (<a href="http://www.kaist.ac.kr/" target="_blank" rel="noopener">KAIST</a>) and <a href="https://www.lbl.gov/" target="_blank" rel="noopener">Lawrence Berkeley National Laboratory</a> has found a way to enhance sodium-ion hybrid energy storage systems through an innovative hybrid energy storage system that integrates anode and cathode materials.</p>
<p>Sodium, a metal 500 times more abundantly available than lithium, shows much promise for electrochemical storage technologies. While iron-based sulfides are environmentally non-toxic, low-cost, and promising anode materials, they have low electrical conductivity, significant volume change during charging/discharging cycles, and slow kinetics.</p>
<p>This necessitated the development of next-generation energy storage materials.</p>
<p>In a recent paper in the <em>Energy Storage Materials</em> journal, the researchers said they combined these materials to allow for high energy density, rapid charging capabilities, and robust long-term stability over many charging cycles, addressing the limitations plaguing sodium-ion technologies.</p>
<p>Sodium-ion hybrid energy storage cells that can use the different potential windows of capacitor-type cathodes and battery-type anodes have attracted a lot of attention because they could, in principle, simultaneously allow for high energy density and fast-rechargeable power density.</p>
<p>The team synthesized iron sulfide-embedded S-doped carbon or graphene (FS/C/G) anode materials from the iron-based metal-organic framework or graphene oxide heterostructures via graphitic carbon formation and sulfidation.</p>
<p>This optimized the balance and minimized the disparities in energy storage rates between the electrodes.</p>
<p>They also achieved high-energy density and fast-rechargeable sodium ion cells by developing a low-crystallinity multivalence iron FS/C/G anode and a ZIF-derived porous carbon cathode.</p>
<p>Through this, the team was able to offer a more abundant and potentially cheaper alternative to lithium-ion systems, which will be especially useful for large-scale energy storage applications.</p>
<p>Earlier this year, Australian and American researchers <a href="https://mercomindia.com/new-sodium-ion-battery-scale-energy-storage#:~:text=A%20team%20of%20researchers%20from,of%20aqueous%20batteries:%20water%20decomposition." target="_blank" rel="noopener">developed</a> a new type of aqueous sodium-ion battery that they claimed would last for over 13,000 charge cycles.</p>
<p>In February 2024, another team from Liverpool University <a href="https://www.mercomindia.com/researchers-discover-new-fast-material" target="_blank" rel="noopener">discovered</a> a solid material that rapidly conducts lithium-ions, which consists of non-toxic, earth-abundant materials.</p>


Researchers Develop Fast-Charging Sodium Battery


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					</table><p><a href="https://www.mercomindia.com/kpi-green-juniper-guvnl-hybrid-auction" target="_blank" rel="noopener"><strong>KPI Green Energy</strong><strong> and </strong><strong>Juniper Green Energy</strong><strong> were declared the winners of Gujarat Urja Vikas Nigam’s auction to procure power from 500 MW grid-connected wind-solar</strong></a> hybrid renewable energy projects with the possibility of expanding the capacity by an additional 500 MW through the greenshoe option<strong>.</strong> KPI Green, which quoted ₹2.99 (~$0.0360)/ kWh, was awarded 50 MW. Juniper won 150 MW at ₹3.04 (~$0.0366) /kWh.</p>
<p><a href="https://www.mercomindia.com/modi-announces-new-rooftop-solar-on-10-million-homes" target="_blank" rel="noopener"><strong>A new program to install rooftop solar systems on 10 million households across India has been announced by Prime Minister Narendra Modi as part of the</strong></a> Pradhan Mantri Suryodaya Yojana initiative. The program aims to reduce the electricity expenditure of poor and middle-class households while enabling India’s self-reliance in the field of energy, the Prime Minister said in a post on the microblogging site X.</p>
<p><a href="https://www.mercomindia.com/rec-records-highest-9m-profit-%e2%82%b9100-billion-fy24" target="_blank" rel="noopener"><strong>Public infrastructure finance company </strong><strong>REC Limited</strong><strong> recorded a revenue of ₹120 billion (~$1.44 billion) for the third quarter (Q3) of the financial year (FY) 2023-24</strong></a>, a 23.56% year-over-year (YoY) increase from ₹97.12 billion (~$1.17 billion). The company attributed the performance during the quarter to improved asset quality, increased lending rates, and effective management of financing costs.</p>
<p><a href="https://www.mercomindia.com/waaree-renewable-profit-surges-q3-fy24" target="_blank" rel="noopener"><strong>Waaree Renewable Technologies</strong><strong>, the solar engineering, procurement, and construction (EPC) arm of the Waaree Group, posted a net profit of ₹644.6 million (~$7.7 million) in Q3</strong></a> of the FY 2024, an increase of 158% YoY from ₹249.8 million (~$3 million). The increase in net profit could be attributed to the increase in the EPC orders won and executed by the company during the period. The company executed ~208 MW of EPC projects during the quarter.</p>
<p><a href="https://www.mercomindia.com/new-sodium-ion-battery-scale-energy-storage" target="_blank" rel="noopener"><strong>A team of researchers from the </strong><strong>University of Adelaide</strong><strong> in Australia and the </strong><strong>University of Maryland</strong><strong> in the U.S. have developed a new type of aqueous sodium-ion battery</strong></a> that they claim can last for over 13,000 charge cycles, overcoming a key limitation of aqueous batteries: water decomposition. The findings, published in the journal Nature Communications, show that the researchers created an alkaline, rather than neutral, electrolyte that suppresses water splitting into oxygen and hydrogen.</p>
<p><a href="https://www.mercomindia.com/navigating-gst-challenges-renewables-planning-execution" target="_blank" rel="noopener"><strong>The renewable energy sector is experiencing unprecedented growth fueled by environmental concerns and technological advancements.</strong></a> Countries are increasingly prioritizing sustainability, leading to the rapid adoption of clean energy sources like solar, wind, and hydropower. Falling renewable technology costs are making it economically competitive. India exemplifies this trend, aiming to install 500 GW of power generation capacity from non-fossil fuels by 2030.</p>
<p><a href="https://www.mercomindia.com/mercom-launches-energy-meet-series-in-bengaluru" target="_blank" rel="noopener"><strong>Mercom India is launching its third installment of the “C&amp;I Clean Energy Meet” series in 2024. This series of events, spanning eight major cities, will kick off in Bengaluru</strong></a> on January 24, 2024, at the Peenya Trade Center, with registrations opening at 5 pm. Mercom aims to bring together clean energy solution providers and consumers to engage with each other on issues like power requirements, challenges, opportunities, and sustainable solutions.</p>


Daily News Wrap-Up: GUVNL’s 500 MW Wind-Solar Hybrid Auction


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					</table><p>A team of researchers from the <a href="https://www.adelaide.edu.au/front/international?adobe_mc_sdid=SDID%3D2F428E5D29EC5CDA-75536E5835AA1042%7CMCORGID%3DBA023B045D5A83160A495E49%40AdobeOrg%7CTS%3D1705987186&amp;adobe_mc_ref=https%3A%2F%2Fwww.adelaide.edu.au%2Ffront%2Finternational" target="_blank" rel="noopener">University of Adelaide</a> in Australia and the <a href="https://umd.edu/" target="_blank" rel="noopener">University of Maryland</a> in the U.S. have developed a new type of aqueous sodium-ion battery that they claim can last for over 13,000 charge cycles, overcoming a key limitation of aqueous batteries: water decomposition.</p>
<p>The findings, published in the journal <a href="https://www.nature.com/articles/s41467-024-44855-6" target="_blank" rel="noopener">Nature Communications</a>, show that the researchers created an alkaline, rather than neutral, electrolyte that suppresses water splitting into oxygen and hydrogen.</p>
<p>Traditional aqueous batteries, like lead-acid batteries, contain water-based electrolytes. While safe and low-cost, a downside is that the water can decompose during battery cycling, producing hydrogen gas that limits battery lifespan and poses safety risks.</p>
<p>However, alkaline conditions can trigger corrosion of the battery cathode. To prevent this, the researchers coated the cathode with nickel/carbon nanoparticles, which created a locally acidic environment at the cathode surface to mitigate corrosion.</p>
<p>The nickel coating had another benefit &#8211; some nickel atoms embedded into the cathode, reinforcing its structure against degradation. This combination of the tailored alkaline electrolyte and nickel-carbon coating led to the coin cell battery maintaining 85% of its initial capacity after 1,000 charge/discharge cycles.</p>
<p>The alkaline solution is also cheaper than current methods to boost water stability, which contains expensive fluorine salts and the addition of potentially flammable co-solvents to the electrolyte to reduce water activity.</p>
<p>According to the researchers, the aqueous sodium-ion battery demonstrated an energy density of 90 Wh/kg, which is good for an aqueous battery but still lower than the 120-260 Wh/kg seen in lithium-ion batteries. However, unlike lithium, sodium has a high natural abundance on the planet, which helps lower costs.</p>
<p>The researchers believe it could enable large-scale energy storage to support renewables and electric vehicles if it can be successfully commercialized. It could also be useful for underwater electronics due to its safety and long lifetime.</p>
<p>There is research in other sodium-ion battery chemistries emerging to address the challenges in performance and cost. Pune-headquartered KPIT Technologies in December <a href="https://www.mercomindia.com/india-based-kpit-unveils-ion-battery-technology" target="_blank" rel="noopener">unveiled</a> a sodium-ion battery technology with 80% capacity retention for 3,000-6,000 cycles and energy density ranging from 100-170 Wh/Kg.</p>
<p>In May, scientists at the Indian Institute of Technology Bombay <a href="https://www.mercomindia.com/iit-researchers-make-headway-sodium-ion-batteries" target="_blank" rel="noopener">claimed</a> a breakthrough in developing sodium-ion batteries by addressing the challenges of air/water instability and structural-cum-electrochemical instability in cathode materials.</p>


New Sodium-Ion Battery For Cheaper Large-Scale Energy Storage

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