Early charging: In a new era of safety and efficiency, breakthrough sodium battery technology attracts
A team of researchers led by Dr. Sayan Das has made a breakthrough in a breakthrough sodium metal battery with Professor Venimadhav Adyam of the Cryogenic Engineering Centre in IIT Kharagpur, India and his colleague Professor Verimadhav Adyam of Vilas Pol University in Vilas Pol. . Their innovative works are published in peer-reviewed journals Energy progressa new quasi-fixed state electrolyte is proposed, which is expected to make significant progress in battery safety and performance.
Traditional lithium-ion batteries (LIBS) have dominated for decades due to their high energy density and reliable performance. However, limited supply and price fluctuations in lithium have prompted people to seek alternative solutions. Sodium ion batteries (SIBs) have become promising candidates, leveraging the rich and cost-effective sodium resources available worldwide. Despite this potential, SIB faces challenges related to safety and stability, especially due to the flammable properties of conventional liquid electrolytes.
The team from IIT Kharagpur and Purdue University solves these problems by developing inexpensive methods on tailored non-assisted quasi-fixed state electrolytes (QSSE). This new electrolyte is based on poly(vinyl fluoride-CO-HEXAFRUOROPYLENE) (PVDF-HFP), providing a non-fuel, flexible and ultra-stable solution for sodium metal batteries. “Our cost-effective method uses cheap textiles (nonwoven masks) containing PVDF-HFP and soaks them in an optimized sodium-based liquid electrolyte to make it non-mutable and practically applicable,” said Dr. DAS. for sodium batteries.”
QSSE exhibits significant properties including enhanced room temperature conductivity and significant sodium ion transfer count. When tested in a sodium metal battery with Na3v2(po4)3 (NVP) Cathode, QSSE-based batteries provide excellent emissions at high rates and show an outstanding capability retention rate of nearly 99% after 2500 yearsTh cycle. This shows that the capacity loss of long-term bicycle riding is negligible, which is a key factor in practical energy storage applications.
One of the most important advantages of this new electrolyte is its enhanced safety. Unlike traditional liquid electrolytes, which can be highly flammable and pose a serious fire and explosion risk, the QSSE developed by the team is inherently unavoidable. This property was confirmed by a public flame test that showed that the QSSE was not ignited, making it a safer option for large-scale energy storage systems.
The researchers also highlighted the scalability of its approach. “Our simple, scalable and cost-effective development of QSSE method is schematic and detailed procedures are described in the supplementary information,” said Dr. Adyam. This scalability is widely adopted for sodium metal batteries and Commercialization is crucial because it ensures that the production process can be implemented on a large scale easily.
The successful development and testing of the new electrolyte marks an important step in the search for safer and more efficient energy storage solutions. The research team is optimistic about the future application of its work and noted that their findings may pave the way for the development of next-generation sodium metal batteries that are not only safer, but also more cost-effective and sustainable.
“Future work will focus on further optimizing the electrolyte composition and exploring its applicability in other battery configurations,” said Dr. Pol. “Our goal is to develop a range of high-performance, safe and affordable energy storage solutions, These solutions can continue to reach the continuous growth of the global energy market.”
Journal Reference
Sayan Das, Vilas G. Pol and Venimadhav Adyama. “Purpose-made nonwoven non-easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, easy, “Premium,” “Preliminary,” “Preliminary,” “Preliminary,” “Preliminary,” “Preliminary,” “Preliminary,” “Preliminary,” “Pre doi: https://doi.org/10.1039/d3ya00435j
About the Author
Dr. Sayan Das He is a postdoctoral researcher at Purdue University, specializing in energy storage technology. With a PhD in Dr. Das received his PhD in Science from Jadavpur University, as well as a broad background in lithium and sodium ion batteries. His work includes significant contributions to the development of safer electrolytes for lithium batteries and quasi-fixed sodium ion systems. Currently, he leads and collaborates with the aim of advancing battery technology for a variety of applications. Dr. DAS has published 19 peer-reviewed articles and has issued 3 patents.
Vilas G. Pol He is a professor of chemical engineering at Purdue University in the United States. He has written/co-authored 270 research publications (H Index 58), and one invented 20 U.S. patents and more than 20 applications. Purdue University pays tribute to him with an outstanding engineering teacher, the most influential inventor, the seed of success, the Bravo and Purdue Faculty Scholar Award. He conducted hundreds of invited, keynote speeches and plenary talks, including “TEDX”. He has won over 35 prestigious awards from professional AICHE, ACS, MRS, ACERS, TMS and CABON SOCIETIES. He is a member of the Royal Society of Chemistry at MASC (India) and IIAM (Sweden) and has won two Guinness World RecordsTM.
Venimadhav Adyam He is an outstanding professor at the Cryogenic Engineering Center at IIT Kharagpur. He received his PhD in 2001, the Indian Academy of Sciences in Bangalore focused on the properties of perovskite-related oxide films. Research conducted at Penn State University and Cambridge University, his academic career is characterized by extensive international experience. His research covers a variety of fields including quantum materials, multiferrous materials, Spintronics and advanced battery technologies such as sodium ion and thin film rechargeable batteries, and he has played a key role in establishing the advanced research facilities at IIT Kharagpur, enhancing its Functions in magnetization measurement and nanolithography. Venimadhav has received several prestigious awards and honors, including the MRSI Medal and the DST FastTrack Young Scientist Project. He is a member of the Indian MRSI MRSI member of India, the Indian Magnetic Society and the Indian CCOuncil. His contribution to science is enormous, including sponsored research projects, publications and book chapters in peer-reviewed journals.
