| Synergetic Modulation on Solvation Structure and Electrode Interface Enables a Highly Reversible Zinc Anode for Zinc-Iron Flow Batteries | |
| Yang, Jing1,2; Yan, Hui1,2; Hao, Huanhuan1,2; Song, Yuxi1,2; Li, Ying1; Liu, Qinghua3; Tang, Ao1 | |
| Corresponding Author | Liu, Qinghua(qinghua8398@163.com) ; Tang, Ao(a.tang@imr.ac.cn) |
| 2022-06-17 | |
| Source Publication | ACS ENERGY LETTERS
 |
| ISSN | 2380-8195 |
| Pages | 2331-2339 |
| Abstract | Zinc-based flow batteries hold great potential for grid-scale energy storage because of their high energy density, low cost, and high security. However, the inferior reversibility of Zn2+/Zn on porous carbon electrodes significantly deteriorates long-term zinc anode stability and, thus, impedes further technological advances for zinc-based flow batteries. Herein, we propose nicotinamide (NAM) as a cost-effective additive to neutral ZnCl2 anolyte, which realizes highly reversible zinc plating/striping reactions on carbon felt electrodes for zinc-iron flow batteries. Experimental characterization and theoretical calculation prove that the nicotinamide not only effectively reshapes the Zn2+ solvation structure by substituting two water molecules from the primary Zn2+-6H(2)O solvation shell but also is capable of adsorbing on deposited zinc layers to regulate Zn2+ diffusion toward the electrode interface and avoid an undesirable tip effect, thereby affording uniformly dendrite-free zinc deposition and significantly enhanced Zn plating/striping reversibility. Benefiting from NAM additives, the zinc-iron flow battery demonstrates a good combination of high power density (185 mW cm(-2)), long cycling stability (400 cycles, 120 h), enhanced resistance to self-discharge (98.9% capacity retention in 12 h), and preeminent battery efficiency (70% energy efficiency at 50 mA cm(-2)), which provides a new pathway to developing a robust zinc anode for advanced flow batteries. |
| Funding Organization | Natural Science Foundation of Liaoning Province ; Chinese Energy Group Science and Technology Innovation |
| DOI | 10.1021/acsenergylett.2c00560 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of Liaoning Province[2020-MS-012] ; Chinese Energy Group Science and Technology Innovation |
| WOS Research Area | Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000819585300001 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174896 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Qinghua; Tang, Ao |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Natl Inst Clean & Low Carbon Energy, Beijing 102211, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, Jing,Yan, Hui,Hao, Huanhuan,et al. Synergetic Modulation on Solvation Structure and Electrode Interface Enables a Highly Reversible Zinc Anode for Zinc-Iron Flow Batteries[J]. ACS ENERGY LETTERS,2022:2331-2339. |
| APA | Yang, Jing.,Yan, Hui.,Hao, Huanhuan.,Song, Yuxi.,Li, Ying.,...&Tang, Ao.(2022).Synergetic Modulation on Solvation Structure and Electrode Interface Enables a Highly Reversible Zinc Anode for Zinc-Iron Flow Batteries.ACS ENERGY LETTERS,2331-2339. |
| MLA | Yang, Jing,et al."Synergetic Modulation on Solvation Structure and Electrode Interface Enables a Highly Reversible Zinc Anode for Zinc-Iron Flow Batteries".ACS ENERGY LETTERS (2022):2331-2339. |
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