Wang, Jian and Li, Zhaojin and Ramesh, S. and Aziz, Shujahadeen B. and Zhang, Di and Woo, Haw Jiunn and Wang, Qiujun and Wang, Bo (2023) Recent advances in metal oxides for sodium-ion capacitors: Mechanism, materials, and future prospects. Chemical Engineering Journal, 478. ISSN 1385-8947, DOI https://doi.org/10.1016/j.cej.2023.147485.
Full text not available from this repository.Abstract
As energy storage technology continues to advance, the rapid charging capability enabled by high power density is gradually becoming a key metric for assessing energy storage devices. In this context, ionic hybrid capacitors aim to achieve higher energy density than electric double-layer capacitors (EDLC) and higher power density than ionic batteries by combining the characteristics of EDLC and ionic batteries. Sodium-ion capacitors (SICs) can offer cost and resource configuration advantages compared to lithium-ion capacitors (LICs). By virtue of the strong redox reaction, metal oxide electrodes have the potential to achieve a higher theoretical specific capacity than traditional carbon-based electrodes, making them potential candidates for SICs. Furthermore, metal oxide electrodes have significant surface pseudocapacitance properties that enable fast ion transport, thereby shortening the power output gap with EDLC. However, when used as electrodes for SICs, most metal oxides encountered compatibility issues with EDLC counter electrodes, in addition to inherent issues such as low conductivity and severe volume expansion. Therefore, the implementation of reasonable modification strategies and adherence to electrode matching rules is crucial for realizing high-performance SICs. This review summarizes the application and research progress of various metal oxides as electrodes for SICs. Additionally, the storage mechanism and structural design of SICs are further discussed. Finally, this review provides a detailed outlook and insight into the optimizations and applications of metal oxide electrodes, hoping to provide some inspiration for the related studies.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education of Malaysia for the Fundamental Research Grant (FRGS/1/2022/STG05/UM/02/3), National Natural Science Foundation of China (22008053, 52002111), Natural Science Foundation of Hebei Province (B2021208061, B2022208006, E2022208023), University of Malaya research grant (ST089-2022) |
| Uncontrolled Keywords: | Sodium-ion capacitors; Metal oxides; Pseudocapacitance; Storage mechanism; Structural design |
| Subjects: | Q Science > QC Physics T Technology > TD Environmental technology. Sanitary engineering T Technology > TP Chemical technology |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 28 Oct 2025 08:04 |
| Last Modified: | 28 Oct 2025 08:04 |
| URI: | http://eprints.um.edu.my/id/eprint/50103 |
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