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Li X, Tang Y, Han C, Wei Z, Fan H, Lv H, Cai T, Cui Y, Xing W, Yan Z, Zhi C, Li H. A Static Tin-Manganese Battery with 30000-Cycle Lifespan Based on Stabilized Mn 3+/Mn 2+ Redox Chemistry. ACS Nano 2023; 17:5083-5094. [PMID: 36853201 DOI: 10.1021/acsnano.3c00242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
High-potential Mn3+/Mn2+ redox couple (>1.3 V vs SHE) in a static battery system is rarely reported due to the shuttle and disproportionation of Mn3+ in aqueous solutions. Herein, based on reversible stripping/plating of the Sn anode and stabilized Mn2+/Mn3+ redox couple in the cathode, an aqueous Sn-Mn full battery is established in acidic electrolytes. Sn anode exhibits high deposition efficiency, low polarization, and excellent stability in acidic electrolytes. With the help of H+ and a complexing agent, a reversible conversion between Mn2+ and Mn3+ ions takes place on the graphite surface. Pyrophosphate ligand is initially employed to form a protective layer through a complexation process with Sn4+ on the electrode surface, effectively preventing Mn3+ from disproportionation and hindering the uncontrollable diffusion of Mn3+ to electrolytes. Benefiting from the rational design, the full battery delivers satisfied electrochemical performance including a large capacity (0.45 mAh cm-2 at 5 mA cm-2), high discharge plateau voltage (>1.6 V), excellent rate capability (58% retention from 5 to 30 mA cm-2), and superior cycling stability (no decay after 30 000 cycles). The battery design strategy realizes a robustly stable Mn3+/Mn2+ redox reaction, which broadens research into ultrafast acidic battery systems.
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Affiliation(s)
- Xuejin Li
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, PR China
| | - Yongchao Tang
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, PR China
| | - Cuiping Han
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong 999077, PR China
| | - Zhiquan Wei
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong 999077, PR China
| | - Haodong Fan
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Haiming Lv
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, PR China
| | - Tonghui Cai
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Yongpeng Cui
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Wei Xing
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Zifeng Yan
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Chunyi Zhi
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, PR China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong 999077, PR China
| | - Hongfei Li
- School of System Design and Intelligent Manufacturing, Southern University of Science and Technology, Shenzhen, Guangdong 518055, PR China
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