Innovative Technique Increases Sodium-Ion Battery Capacity

Sodium-ion Battery Capacity Boost

Researchers from Lancaster University and Fujian Normal University have developed a pioneering technique to enhance Sodium-ion Battery capacity. This joint research project has shown promising results that could lead to safer and more affordable energy storage solutions compared to Lithium-ion batteries.

Key Researchers and Institutions

The research, published in Applied Physics Reviews, was led by Professor Oleg Kolosov of Lancaster University and Professor Zhigao Huang from Fujian Normal University. Key contributions were made by Associate Professor Yue Chen, who is affiliated with both Lancaster University and Fuzhou.

The Importance of Nanoscale Studies

Professor Kolosov emphasized the importance of nanoscale studies in developing efficient and safe batteries. He stated, “Nanoscale studies of rechargeable storage are essential for the development of new, efficient and safe batteries.”

Using EC-UFM for Nanoscale Imaging

The team developed electrochemical ultrasonic force microscopy (EC-UFM) to achieve nanoscale imaging of battery interfaces during operation, or “operando.” This technique allows researchers to observe the formation and properties of solid-state interphase (SEI) directly. SEI layers are crucial for the battery’s capacity, power, and lifespan.

Benefits of Sodium-Ion Batteries

Sodium-ion batteries offer a cheaper and safer alternative to Lithium-ion batteries. Lithium is scarcer and more challenging to mine compared to sodium. This research aims to improve the cycle stability, lifespan, and capacity of sodium-ion batteries by preserving the charge carriers’ shuttling between the electrolyte and electrode.

Solving the SEI Layer Challenge

The EC-UFM technique is part of the NEXGENNA Faraday Institution project. It solves the challenge of increasing the Sodium-ion Battery‘s capacity using a solvent for sodium co-intercalation into the carbon electrode. By guiding the SEI layer formation during the battery’s charge/discharge process, scientists could enhance the battery’s efficiency and power.

Significant Contribution to Battery Technology

This technique marks a significant contribution to Sodium-ion Battery technology, offering new pathways for safer and more sustainable energy storage. The insights gained from this research will likely influence future innovations in battery development.

More Information

For those interested in delving deeper into this groundbreaking study, the research paper by Yue Chen and colleagues is available in Applied Physics Reviews, titled “Operando nano-mapping of sodium-diglyme co-intercalation and SEI formation in sodium-ion batteries’ graphene anodes.”


This new technique for boosting Sodium-ion Battery capacity represents a considerable advancement in energy storage solutions. With a focus on safety, affordability, and efficiency, it paves the way for future innovations in the field.

Provided by Lancaster University

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