A composite anode made of tin nanoparticles embedded in hard carbon supposedly improves the charging speed and durability of lithium-ion and sodium-ion batteries. Researchers from South Korea have developed this new battery technology.
Alexander Pensler (translated by Enrico Frahn), Published š©šŖ šØš³ ...
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Batteries are somewhat of a bottleneck for many modern devices and machines including laptops, smartphones and electric cars. Faster charging speeds and better longevity are two important factors that need improvement. Researchers at Pohang University of Science and Technology and the Korea Institute of Energy Research recently presented a new composite anode which might be able to mitigate these issues.
Instead of graphite, the South Korean scientists utilize tin nanoparticles embedded in hard carbon as material for the anode. These carbon-encased tin nanoparticles are produced with a sol-gel process and a chemical conversion (reduction) through heating. This chemical production process creates uniformly distributed tin nanoparticles within a resistant hard carbon matrix.
The journal ACS Nano further reports that these modifications have improved the structural stability and lowered the volume expansion compared to regular graphite anodes. This results in higher energy density of these battery cells, which is accompanied by optimized electrochemical kinetics. Simply put, these new batteries can be charged faster and are more durable.
Lithium-ion and sodium-ion batteries benefit from tin nanoparticles
When an electrode with tin nanoparticles in hard carbon is used in lithium-ion batteries, the battery lasts more than 1,500 cycles with 20-minute fast charging. Moreover, the energy density is 1.5 times higher than that of batteries with a regular graphite anode. The new battery technology also shows good stability and better kinetics when used in sodium-ion cells.
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Editor of the original article: Alexander Pensler - Tech Writer - 597 articles published on Notebookcheck since 2023
Technology has been with me all my life, starting with Nintendo consoles, followed later by my first self-built PC experiences, until I disappeared into the Apple camp for a long time. But since I discovered Linux for myself, I've been using the free operating system with enthusiasm on my laptop and workstation PC. Since 2022, I have been working as an IT journalist for PC Games Hardware, among others, and am now a news editor with a focus on Linux for Notebookcheck.
Translator: Enrico Frahn - Managing Editor Accessory Reviews, Tech Writer - 4347 articles published on Notebookcheck since 2021
My fascination for technology goes back a long way to the Pentium II era. Modding, overclocking and treasuring computer hardware has since become an integral part of my life. As a student, I further developed a keen interest in mobile technologies that can make the stressful college life so much easier. After I fell in love with the creation of digital content while working in a marketing position, I now scour the web to bring you the most exciting topics in the world of tech. Outside the office, Iām particularly passionate about motorsports and mountain biking.
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Alexander Pensler,2025-04-24(Update:2025-04-25)
