NiP nanoparticles encapsulated in lamellar carbon as high-performance anode materials for sodium-ion batteries
Phosphate-based sodium anodes have been widely concerned for their high theoretical capacity, but their applications are limited by their significant volume evolution and poor conductivity. In order to buffer the volume variation of the phospho-based anode and improve its electrical conductivity, ni...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Electrochemistry Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248122001461 |
| _version_ | 1828110748021161984 |
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| author | Bingxue Sun Jiangfeng Ni |
| author_facet | Bingxue Sun Jiangfeng Ni |
| author_sort | Bingxue Sun |
| collection | DOAJ |
| description | Phosphate-based sodium anodes have been widely concerned for their high theoretical capacity, but their applications are limited by their significant volume evolution and poor conductivity. In order to buffer the volume variation of the phospho-based anode and improve its electrical conductivity, nickel phosphide (NiP) nanoparticles were uniformly encapsulated in the lamellar carbon shell (NiP@C) by solvothermal combined thermal decomposition reaction. Due to the filling of carbon between NiP particles, the volume expansion of NiP anode can be effectively alleviated during the cycling process, which makes NiP@C have excellent electrochemical performance. It can achieve the considerable capacity of 385.5 mAh/g at 50 mA g−1, and remain a capacity of 292 mAh/g after 100 cycles. Moreover, because carbon has better electron/ion conductivity, NiP@C exhibits faster kinetics than NiP. |
| first_indexed | 2024-04-11T11:23:04Z |
| format | Article |
| id | doaj.art-c479992414274e6fa497b513ca2ee44e |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-04-11T11:23:04Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-c479992414274e6fa497b513ca2ee44e2022-12-22T04:26:35ZengElsevierElectrochemistry Communications1388-24812022-08-01141107344NiP nanoparticles encapsulated in lamellar carbon as high-performance anode materials for sodium-ion batteriesBingxue Sun0Jiangfeng Ni1Corresponding author.; School of Physical Science and Technology, Center for Energy Conversion Materials & Physics (CECMP), Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, PR ChinaSchool of Physical Science and Technology, Center for Energy Conversion Materials & Physics (CECMP), Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, PR ChinaPhosphate-based sodium anodes have been widely concerned for their high theoretical capacity, but their applications are limited by their significant volume evolution and poor conductivity. In order to buffer the volume variation of the phospho-based anode and improve its electrical conductivity, nickel phosphide (NiP) nanoparticles were uniformly encapsulated in the lamellar carbon shell (NiP@C) by solvothermal combined thermal decomposition reaction. Due to the filling of carbon between NiP particles, the volume expansion of NiP anode can be effectively alleviated during the cycling process, which makes NiP@C have excellent electrochemical performance. It can achieve the considerable capacity of 385.5 mAh/g at 50 mA g−1, and remain a capacity of 292 mAh/g after 100 cycles. Moreover, because carbon has better electron/ion conductivity, NiP@C exhibits faster kinetics than NiP.http://www.sciencedirect.com/science/article/pii/S1388248122001461Transition metal phosphideCarbonSodium-ion batteryAnode |
| spellingShingle | Bingxue Sun Jiangfeng Ni NiP nanoparticles encapsulated in lamellar carbon as high-performance anode materials for sodium-ion batteries Electrochemistry Communications Transition metal phosphide Carbon Sodium-ion battery Anode |
| title | NiP nanoparticles encapsulated in lamellar carbon as high-performance anode materials for sodium-ion batteries |
| title_full | NiP nanoparticles encapsulated in lamellar carbon as high-performance anode materials for sodium-ion batteries |
| title_fullStr | NiP nanoparticles encapsulated in lamellar carbon as high-performance anode materials for sodium-ion batteries |
| title_full_unstemmed | NiP nanoparticles encapsulated in lamellar carbon as high-performance anode materials for sodium-ion batteries |
| title_short | NiP nanoparticles encapsulated in lamellar carbon as high-performance anode materials for sodium-ion batteries |
| title_sort | nip nanoparticles encapsulated in lamellar carbon as high performance anode materials for sodium ion batteries |
| topic | Transition metal phosphide Carbon Sodium-ion battery Anode |
| url | http://www.sciencedirect.com/science/article/pii/S1388248122001461 |
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