Sunday, May 19, 2024

High Conductivity Sodium Batteries Advance Toward Practical Use

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This advancement in sodium battery technology promises to enhance the safety, cost-efficiency, and performance of energy storage systems worldwide.

The advancement of battery technology is pivotal in the realm of sustainable energy technologies. Lithium-ion batteries dominate the market, but researchers are shifting focus to more abundant and potentially safer alternatives like all-solid-state sodium batteries. Professors Atsushi Sakuda and Akitoshi Hayashi from Osaka Metropolitan University’s Graduate School of Engineering are at the forefront of this shift, having developed a groundbreaking process that might pave the way for mass production of sodium-based batteries.

Their research showcases a method for synthesizing sodium-containing sulfides using sodium polysulfides. This approach not only serves as the material but also acts as the flux to promote fusion, resulting in a solid sulfide electrolyte. This electrolyte boasts the highest sodium ion conductivity reported to date—approximately ten times higher than what is typically required for practical applications. Additionally, the team has developed a glass electrolyte with superior reduction resistance.

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The significance of this breakthrough cannot be overstated. The ability to mass-produce these electrolytes with enhanced conductivity and formability is crucial for the commercial viability of all-solid-state sodium batteries. These batteries are deemed safer and potentially less expensive than their lithium-ion counterparts due to the abundance of sodium.

The team mentioned that this newly developed process is useful for the production of almost all sodium-containing sulfide materials, including solid electrolytes and electrode active materials.They also points out that their method yields materials that outperform those produced by conventional techniques. This enhances the possibility of it becoming the standard process for future developments in all-solid-state sodium battery materials.

The research marks a significant step towards sustainable battery solutions, offering a promising alternative to lithium-ion batteries and contributing to the advancement of green energy storage technologies. As the quest for efficient, safe, and cost-effective energy storage continues, developments like these are crucial in powering a more sustainable future.


Akanksha Sondhi Gaur is a journalist at EFY. She has a German patent and brings a robust blend of 7 years of industrial & academic prowess to the table. Passionate about electronics, she has penned numerous research papers showcasing her expertise and keen insight.

Akanksha Gaur
Akanksha Gaur
Akanksha Sondhi Gaur is a journalist at EFY. She has a German patent and brings a robust blend of 7 years of industrial & academic prowess to the table. Passionate about electronics, she has penned numerous research papers showcasing her expertise and keen insight.

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