High-Energy and High-Power Pseudocapacitor–Battery Hybrid Sodium-Ion Capacitor with Na+ Intercalation Pseudocapacitance Anode
Abstract High-performance and low-cost sodium-ion capacitors (SICs) show tremendous potential applications in public transport and grid energy storage. However, conventional SICs are limited by the low specific capacity, poor rate capability, and low initial coulombic efficiency (ICE) of anode mater...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-01-01
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| Series: | Nano-Micro Letters |
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| Online Access: | https://doi.org/10.1007/s40820-020-00567-2 |
| _version_ | 1818675243904925696 |
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| author | Qiulong Wei Qidong Li Yalong Jiang Yunlong Zhao Shuangshuang Tan Jun Dong Liqiang Mai Dong-Liang Peng |
| author_facet | Qiulong Wei Qidong Li Yalong Jiang Yunlong Zhao Shuangshuang Tan Jun Dong Liqiang Mai Dong-Liang Peng |
| author_sort | Qiulong Wei |
| collection | DOAJ |
| description | Abstract High-performance and low-cost sodium-ion capacitors (SICs) show tremendous potential applications in public transport and grid energy storage. However, conventional SICs are limited by the low specific capacity, poor rate capability, and low initial coulombic efficiency (ICE) of anode materials. Herein, we report layered iron vanadate (Fe5V15O39 (OH)9·9H2O) ultrathin nanosheets with a thickness of ~ 2.2 nm (FeVO UNSs) as a novel anode for rapid and reversible sodium-ion storage. According to in situ synchrotron X-ray diffractions and electrochemical analysis, the storage mechanism of FeVO UNSs anode is Na+ intercalation pseudocapacitance under a safe potential window. The FeVO UNSs anode delivers high ICE (93.86%), high reversible capacity (292 mAh g−1), excellent cycling stability, and remarkable rate capability. Furthermore, a pseudocapacitor–battery hybrid SIC (PBH-SIC) consisting of pseudocapacitor-type FeVO UNSs anode and battery-type Na3(VO)2(PO4)2F cathode is assembled with the elimination of presodiation treatments. The PBH-SIC involves faradaic reaction on both cathode and anode materials, delivering a high energy density of 126 Wh kg−1 at 91 W kg−1, a high power density of 7.6 kW kg−1 with an energy density of 43 Wh kg−1, and 9000 stable cycles. The tunable vanadate materials with high-performance Na+ intercalation pseudocapacitance provide a direction for developing next-generation high-energy capacitors. |
| first_indexed | 2024-12-17T08:24:29Z |
| format | Article |
| id | doaj.art-6782b29772ed4a05b01f3796ccbef910 |
| institution | Directory Open Access Journal |
| issn | 2311-6706 2150-5551 |
| language | English |
| last_indexed | 2024-12-17T08:24:29Z |
| publishDate | 2021-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nano-Micro Letters |
| spelling | doaj.art-6782b29772ed4a05b01f3796ccbef9102022-12-21T21:56:49ZengSpringerOpenNano-Micro Letters2311-67062150-55512021-01-0113111310.1007/s40820-020-00567-2High-Energy and High-Power Pseudocapacitor–Battery Hybrid Sodium-Ion Capacitor with Na+ Intercalation Pseudocapacitance AnodeQiulong Wei0Qidong Li1Yalong Jiang2Yunlong Zhao3Shuangshuang Tan4Jun Dong5Liqiang Mai6Dong-Liang Peng7Department of Materials Science and Engineering, Fujian Key Laboratory of Materials Genome, College of Materials, Xiamen UniversityShenzhen Geim Graphene Center, Tsinghua Shenzhen International Graduate School, Tsinghua UniversityState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyAdvanced Technology Institute, University of SurreyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of TechnologyDepartment of Materials Science and Engineering, Fujian Key Laboratory of Materials Genome, College of Materials, Xiamen UniversityAbstract High-performance and low-cost sodium-ion capacitors (SICs) show tremendous potential applications in public transport and grid energy storage. However, conventional SICs are limited by the low specific capacity, poor rate capability, and low initial coulombic efficiency (ICE) of anode materials. Herein, we report layered iron vanadate (Fe5V15O39 (OH)9·9H2O) ultrathin nanosheets with a thickness of ~ 2.2 nm (FeVO UNSs) as a novel anode for rapid and reversible sodium-ion storage. According to in situ synchrotron X-ray diffractions and electrochemical analysis, the storage mechanism of FeVO UNSs anode is Na+ intercalation pseudocapacitance under a safe potential window. The FeVO UNSs anode delivers high ICE (93.86%), high reversible capacity (292 mAh g−1), excellent cycling stability, and remarkable rate capability. Furthermore, a pseudocapacitor–battery hybrid SIC (PBH-SIC) consisting of pseudocapacitor-type FeVO UNSs anode and battery-type Na3(VO)2(PO4)2F cathode is assembled with the elimination of presodiation treatments. The PBH-SIC involves faradaic reaction on both cathode and anode materials, delivering a high energy density of 126 Wh kg−1 at 91 W kg−1, a high power density of 7.6 kW kg−1 with an energy density of 43 Wh kg−1, and 9000 stable cycles. The tunable vanadate materials with high-performance Na+ intercalation pseudocapacitance provide a direction for developing next-generation high-energy capacitors.https://doi.org/10.1007/s40820-020-00567-2Sodium-ion capacitorsPseudocapacitanceHybrid capacitorsTwo-dimensional materialsIron vanadate |
| spellingShingle | Qiulong Wei Qidong Li Yalong Jiang Yunlong Zhao Shuangshuang Tan Jun Dong Liqiang Mai Dong-Liang Peng High-Energy and High-Power Pseudocapacitor–Battery Hybrid Sodium-Ion Capacitor with Na+ Intercalation Pseudocapacitance Anode Nano-Micro Letters Sodium-ion capacitors Pseudocapacitance Hybrid capacitors Two-dimensional materials Iron vanadate |
| title | High-Energy and High-Power Pseudocapacitor–Battery Hybrid Sodium-Ion Capacitor with Na+ Intercalation Pseudocapacitance Anode |
| title_full | High-Energy and High-Power Pseudocapacitor–Battery Hybrid Sodium-Ion Capacitor with Na+ Intercalation Pseudocapacitance Anode |
| title_fullStr | High-Energy and High-Power Pseudocapacitor–Battery Hybrid Sodium-Ion Capacitor with Na+ Intercalation Pseudocapacitance Anode |
| title_full_unstemmed | High-Energy and High-Power Pseudocapacitor–Battery Hybrid Sodium-Ion Capacitor with Na+ Intercalation Pseudocapacitance Anode |
| title_short | High-Energy and High-Power Pseudocapacitor–Battery Hybrid Sodium-Ion Capacitor with Na+ Intercalation Pseudocapacitance Anode |
| title_sort | high energy and high power pseudocapacitor battery hybrid sodium ion capacitor with na intercalation pseudocapacitance anode |
| topic | Sodium-ion capacitors Pseudocapacitance Hybrid capacitors Two-dimensional materials Iron vanadate |
| url | https://doi.org/10.1007/s40820-020-00567-2 |
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