Professor Jang Ji-hyun of Sogang University Presents Design Principles for Silent Sodium All-Solid-State Batteries

Sogang University announced on the 21st that a study involving Professor Jang Ji-hyun from the Department of Chemistry as the corresponding author has presented design principles for implementing an anode-free sodium all-solid-state battery.

Professor Jang Ji-hyun, Department of Chemistry, Sogang University
[Photo by Sogang University]

This research was conducted in collaboration with the research team of Professor Shirley Meng from the University of Chicago, a leader in all-solid-state battery research. Anode-free batteries have attracted attention for their high energy density and optimal battery structure, but their use has been limited due to dendrite formation in liquid electrolyte systems and unstable solid-electrolyte interface formation. However, by using a solid electrolyte, the team succeeded in forming a stable solid-electrolyte interface and a dense metal anode, preventing contact loss and cell short circuits.

A Sogang University official stated, "This research is significant in that it presents important design principles for advancing next-generation fast-charging batteries by applying electrochemically stable solid electrolytes and appropriate stack pressure," adding, "It is also recognized for providing future directions for other battery materials to realize low-cost, high-energy density, and fast-charging batteries."

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