1
|
Li X, Wang Y, Lu J, Li S, Li P, Huang Z, Liang G, He H, Zhi C. Three-Electron Transfer-Based High-Capacity Organic Lithium-Iodine (Chlorine) Batteries. Angew Chem Int Ed Engl 2023; 62:e202310168. [PMID: 37656770 DOI: 10.1002/anie.202310168] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/03/2023]
Abstract
Conversion-type batteries apply the principle that more charge transfer is preferable. The underutilized electron transfer mode within two undermines the electrochemical performance of halogen batteries. Here, we realised a three-electron transfer lithium-halogen battery based on I- /I+ and Cl- /Cl0 couples by using a common commercial electrolyte saturated with Cl- anions. The resulting Li||tetrabutylammonium triiodide (TBAI3 ) cell exhibits three distinct discharging plateaus at 2.97, 3.40, and 3.85 V. Moreover, it has a high capacity of 631 mAh g-1 I (265 mAh g-1 electrode , based on entire mass loading) and record-high energy density of up to 2013 Wh kg-1 I (845 Wh kg-1 electrode ). To support these findings, experimental characterisations and density functional theory calculations were conducted to elucidate the redox chemistry involved in this novel interhalogen strategy. We believe our paradigm presented here has a foreseeable inspiring effect on other halogen batteries for high-energy-density pursuit.
Collapse
Affiliation(s)
- Xinliang Li
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Yanlei Wang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Junfeng Lu
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Shimei Li
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), 999077, Shatin, NT, HKSAR, China
| | - Pei Li
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Zhaodong Huang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), 999077, Shatin, NT, HKSAR, China
| | - Guojin Liang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Hongyan He
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Chunyi Zhi
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering (COCHE), 999077, Shatin, NT, HKSAR, China
| |
Collapse
|