PUBLICATION

Advanced Soft Energy Materials Lab

Publication

Publication

45. Development of Prussian Blue Analogue Cathode Materials via Multi-ion Precipitation for Aqueous Zn-ion Battery
Authors
Jongha Hwang, Yeyoung So, Sung-Soo Kim, Woo-Jin Song*
Journal
Polymer Korea
Date
(2024.09), JCR: 94.68 %, IF: 0.4
Year
2024

Aqueous zinc ion batteries (AZIB) have gained attention as next-generation batteries. However, the cathode material for AZIB still has critical problems with its low capacity and lifespan characteristics, which are lower than those of existing cathode materials for lithium-ion batteries. Herein, we developed the Prussian blue analogue (PBA) as a cathode material with high capacity and electrochemical stability by utilizing a multi-ion co-precipitation method with Zn and Mn ions. The designed Zn-Mn-based PBA (ZnMnHCF111) was uniformly synthesized with a higher crystalline structure than that of Mn-based PBAs (MnHCF). ZnMnHCF111 accomplished a high capacity of 425 mAh/g, which is 50% higher than that of MnHCF at 1 A/g. In addition, the full cell with the ZnMnHCF111 cathode achieved 73% of capacity retention at 5 A/g during 1000 cycles. This study expects that PBA-based materials using a multi-ion co-precipitation method will play an important role in the research of next-generation AZIB.