Zn dendrite suppression and solid electrolyte interface control using N-allylthiourea as an electrolyte additive for aqueous Zn-ion batteries
- Title
- Zn dendrite suppression and solid electrolyte interface control using N-allylthiourea as an electrolyte additive for aqueous Zn-ion batteries
- Author
- 조국영
- Keywords
- Electrolyte additive; Aqueous Zn-ion batteries; Solid electrolyte interface; N-allylthiourea; VO2
- Issue Date
- 2023-12-23
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Citation
- ELECTROCHIMICA ACTA,
- Abstract
- Despite being promising candidates for Li-ion batteries, the development of aqueous Zn-ion batteries is still impeded by inherent unresolved problems such as dendrite growth and side reactions on the anode side. In this study, a stabilized Zn-electrolyte interface is established using N-allylthiourea (ATU) as an additive in mildly acidic electrolytes because of its strong affinity towards Zn2+ ions and the Zn metal. Through this favorable electrostatic adsorption, side reactions owing to water molecules are inhibited, and uniform Zn deposition is achieved, leading to highly reversible stripping/plating performance. Consequently, a stable cycling performance of up to 500 h at a current density of 1 mA cm-2 and an areal capacity of 1 mAh cm-2 is demonstrated for Zn symmetric cells. Furthermore, a Zn|VO2 full cell validates the possible practical use of ATU where it delivers a promising cycling performance of up to 300 cycles at a current rate of 1C (200 mA g-1). This study contributes insights into the role of additives in optimizing battery performance and creates opportunities for further exploration of similar compounds in pursuit of sustainable energy storage systems.
- URI
- https://information.hanyang.ac.kr/#/eds/detail?an=S0013468623018728&dbId=edselphttps://repository.hanyang.ac.kr/handle/20.500.11754/189695
- ISSN
- 0013-4686
- DOI
- 10.1016/j.electacta.2023.143704
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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