Highly efficient phthalocyanine based aqueous Zn-ion flexible-batteries
- Authors
- Hwang, Byungil; Cheong, Jun Young; Matteini, Paolo; Yun, Tae Gwang
- Issue Date
- Jan-2022
- Publisher
- Elsevier B.V.
- Keywords
- Aqueous Zn-ion batteries; Electrochemical reliability; Intercalation/de-intercalation reaction; Phthalocyanine
- Citation
- Materials Letters, v.306
- Journal Title
- Materials Letters
- Volume
- 306
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/50337
- DOI
- 10.1016/j.matlet.2021.130954
- ISSN
- 0167-577X
1873-4979
- Abstract
- Aqueous Zn-ion battery has developed as an alternative to overcome the limitations of conventional Li-ion batteries, but its application is insufficient due to low reversibility and electrochemical reliability. In this study, we developed a cathode for aqueous Zn-ion battery with improvement of reversibility and electrochemical reliability utilizing phthalocyanine (PTC) that efficiently transports metal ions and electrons. The intercalation/de-intercalation reaction of Zn2+ ions changes according to the central metal ligand ion of PTC, and iron (II) coordinated PTC exhibited the outstanding energy storage capacity (161.34 mAh/g) and electrochemical reliability (99%, 100 cycles). Based on maximized electrochemical performance and reliability, Zn-ion flexible battery was successfully demonstrated by utilizing air-spray coating. © 2021
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