Sustainable ultra-long cycle life aqueous Zn-I2 battery without ion-selective membrane
Rechargeable aqueous zinc-iodine (Zn-I2) batteries are generally in the form of redox flow battery that uses an ion-selective membrane to separate two different electrolytes. The reversible redox reactions of iodine species in the electrolyte play a key role in charge and discharge. If without the i...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Next Energy |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949821X2400005X |
| _version_ | 1797235399557382144 |
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| author | Xiangcheng Yuan Yun Wang Qiuju Xu Yiqing Li Zilong Zheng Jinzhang Liu |
| author_facet | Xiangcheng Yuan Yun Wang Qiuju Xu Yiqing Li Zilong Zheng Jinzhang Liu |
| author_sort | Xiangcheng Yuan |
| collection | DOAJ |
| description | Rechargeable aqueous zinc-iodine (Zn-I2) batteries are generally in the form of redox flow battery that uses an ion-selective membrane to separate two different electrolytes. The reversible redox reactions of iodine species in the electrolyte play a key role in charge and discharge. If without the ion-selective membrane, the Zn anode would suffer from severe corrosion, and the interaction between Zn and I3– in the cycling process gradually reduces the cell capacity, Coulombic efficiency, and cycle life. Here, a simple and scalable chemical bath deposition method is developed to form an amorphous Se overlayer on the Zn foil, thus remarkably improving its anode performance in aqueous Zn-I2 battery and ruling out the use of ion-selective membrane. Effects of Se deposition time on the anti-corrosion performance, rate performance, capacity, and cycle life are investigated in detail. As a result, the button-type full cell using optimized Zn@Se anode delivers high Coulombic efficiency of 99.4%, high specific capacity of 180 mAh g–1, and ultra-long lifespan over 50,000 cycles with a capacity retention of 82.6%. Pouch type cells are made to demonstrate the efficient suppression of hydrogen gas evolution. To manifest the potential for practical applications, high-capacity cells using plastic boxes are made to drive an electric fan and a robot toy. Mechanism of this amorphous Se overlayer on Zn anode in enhancing the battery performance is discussed. |
| first_indexed | 2024-04-24T16:47:21Z |
| format | Article |
| id | doaj.art-699350f9b9034306a4d80eb8a171e444 |
| institution | Directory Open Access Journal |
| issn | 2949-821X |
| language | English |
| last_indexed | 2024-04-24T16:47:21Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Energy |
| spelling | doaj.art-699350f9b9034306a4d80eb8a171e4442024-03-29T05:52:22ZengElsevierNext Energy2949-821X2024-01-012100100Sustainable ultra-long cycle life aqueous Zn-I2 battery without ion-selective membraneXiangcheng Yuan0Yun Wang1Qiuju Xu2Yiqing Li3Zilong Zheng4Jinzhang Liu5School of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaDepartment of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaDepartment of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing 100191, China; Corresponding author.Rechargeable aqueous zinc-iodine (Zn-I2) batteries are generally in the form of redox flow battery that uses an ion-selective membrane to separate two different electrolytes. The reversible redox reactions of iodine species in the electrolyte play a key role in charge and discharge. If without the ion-selective membrane, the Zn anode would suffer from severe corrosion, and the interaction between Zn and I3– in the cycling process gradually reduces the cell capacity, Coulombic efficiency, and cycle life. Here, a simple and scalable chemical bath deposition method is developed to form an amorphous Se overlayer on the Zn foil, thus remarkably improving its anode performance in aqueous Zn-I2 battery and ruling out the use of ion-selective membrane. Effects of Se deposition time on the anti-corrosion performance, rate performance, capacity, and cycle life are investigated in detail. As a result, the button-type full cell using optimized Zn@Se anode delivers high Coulombic efficiency of 99.4%, high specific capacity of 180 mAh g–1, and ultra-long lifespan over 50,000 cycles with a capacity retention of 82.6%. Pouch type cells are made to demonstrate the efficient suppression of hydrogen gas evolution. To manifest the potential for practical applications, high-capacity cells using plastic boxes are made to drive an electric fan and a robot toy. Mechanism of this amorphous Se overlayer on Zn anode in enhancing the battery performance is discussed.http://www.sciencedirect.com/science/article/pii/S2949821X2400005XZn metal anodeAmorphous selenium overlayerAqueous zinc iodine batteriesAnti-corrosionChemical bath deposition |
| spellingShingle | Xiangcheng Yuan Yun Wang Qiuju Xu Yiqing Li Zilong Zheng Jinzhang Liu Sustainable ultra-long cycle life aqueous Zn-I2 battery without ion-selective membrane Next Energy Zn metal anode Amorphous selenium overlayer Aqueous zinc iodine batteries Anti-corrosion Chemical bath deposition |
| title | Sustainable ultra-long cycle life aqueous Zn-I2 battery without ion-selective membrane |
| title_full | Sustainable ultra-long cycle life aqueous Zn-I2 battery without ion-selective membrane |
| title_fullStr | Sustainable ultra-long cycle life aqueous Zn-I2 battery without ion-selective membrane |
| title_full_unstemmed | Sustainable ultra-long cycle life aqueous Zn-I2 battery without ion-selective membrane |
| title_short | Sustainable ultra-long cycle life aqueous Zn-I2 battery without ion-selective membrane |
| title_sort | sustainable ultra long cycle life aqueous zn i2 battery without ion selective membrane |
| topic | Zn metal anode Amorphous selenium overlayer Aqueous zinc iodine batteries Anti-corrosion Chemical bath deposition |
| url | http://www.sciencedirect.com/science/article/pii/S2949821X2400005X |
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