Enabling fast-charging selenium-based aqueous batteries via conversion reaction with copper ions
文献类型：期刊论文
| 作者 | Dai, Chunlong; Hu, Linyu; Chen, Hao4; Jin, Xuting; Han, Yuyang; Wang, Ying; Li, Xiangyang; Zhang, Xinqun; Song, Li; Xu, Maowen4 |
| 刊名 | NATURE COMMUNICATIONS
 ; 1
|
| 出版日期 | 2022-04 |
| 卷号 | 13页码:1863 |
| DOI | 10.1038/s41467-022-29537-5 |
| 英文摘要 | Selenium (Se) is an appealing alternative cathode material for secondary battery systems that recently attracted research interests in the electrochemical energy storage field due to its high theoretical specific capacity and good electronic conductivity. However, despite the relevant capacity contents reported in the literature, Se-based cathodes generally show poor rate capability behavior. To circumvent this issue, we propose a series of selenium@carbon (Se@C) composite positive electrode active materials capable of delivering a four-electron redox reaction when placed in contact with an aqueous copper-ion electrolyte solution (i.e., 0.5 M CuSO4) and copper or zinc foils as negative electrodes. The lab-scale Zn | |Se@C cell delivers a discharge voltage of about 1.2 V at 0.5 A g(-1) and an initial discharge capacity of 1263 mAh g(Se)(-1). Interestingly, when a specific charging current of 6 A g(-1) is applied, the Zn | |Se@C cell delivers a stable discharge capacity of around 900 mAh g(Se)(-1) independently from the discharge rate. Via physicochemical characterizations and first-principle calculations, we demonstrate that battery performance is strongly associated with the reversible structural changes occurring at the Se-based cathode. Aqueous battery Se-based cathodes are based on a two-electron transfer electrochemical reaction and generally show inadequate rate capability behaviour. Here, the authors propose a four-electron Se chemistry with copper ions as charge carriers to enable fast-charging battery cycling. |
| 学科主题 | Multidisciplinary Sciences |
| 分类号 | 一类 |
| 语种 | 英语 |
| WOS记录号 | WOS:000779311200013 |
| 资助机构 | NSFC [21975027, 11972349, 11790292, 22035005, 52073159, 52022051, 22075165, 22109009] ; NSFC-MAECI [51861135202] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22040503] |
| 其他责任者 | Zhang, ZP ; Qu, LT (corresponding author), Beijing Inst Technol, Sch Chem & Chem Engn, Beijing Key Lab Photoelect Electrophoton Convers, Key Lab Cluster Sci,Minist Educ, Beijing 100081, Peoples R China. ; Qu, LT (corresponding author), Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Minist Educ, Beijing 100084, Peoples R China. ; Liu, F (corresponding author), Chinese Acad Sci, State Key Lab Nonlinear Mech Inst Mech, Beijing 100190, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/90198]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Nonlinear Mech Inst Mech, Beijing 100190, Peoples R China 2.Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Minist Educ, Beijing 100084, Peoples R China 3.Southwest Univ, Key Lab Luminescent & Real Time Analyt Chem, Sch Mat & Energy, Minist Educ, Chongqing 400715, Peoples R China 4.Beijing Inst Technol, Sch Chem & Chem Engn, Beijing Key Lab Photoelect Electrophoton Convers, Key Lab Cluster Sci,Minist Educ, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Chunlong,Hu, Linyu,Chen, Hao,et al. Enabling fast-charging selenium-based aqueous batteries via conversion reaction with copper ions[J]. NATURE COMMUNICATIONS, 1,2022,13:1863. |
| APA | Dai, Chunlong.,Hu, Linyu.,Chen, Hao.,Jin, Xuting.,Han, Yuyang.,...&Qu, Liangti.(2022).Enabling fast-charging selenium-based aqueous batteries via conversion reaction with copper ions.NATURE COMMUNICATIONS,13,1863. |
| MLA | Dai, Chunlong,et al."Enabling fast-charging selenium-based aqueous batteries via conversion reaction with copper ions".NATURE COMMUNICATIONS 13(2022):1863. |
入库方式： OAI收割
来源：力学研究所
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