Bimetallic Flower-like NiCoP Encapsulated in an N-Doped Carbon Shell with Enhanced Lithium Storage Properties
It continues to be a challenge to design innovative NiCoP composite anode materials to further improve rate capacity. In this work, bimetallic flower-like NiCoP encapsulated in an N-doped carbon shell (designated as NiCoP@NC) as a high-rate capable anode material for lithium-ion batteries (LIBs) was...
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MDPI AG
2023-07-01
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| Series: | Batteries |
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| Online Access: | https://www.mdpi.com/2313-0105/9/7/361 |
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| author | Haoyu Tian Lingyu Zhao Linlin Wang Zijie Xia Wenqi Tan Zheng Jiao |
| author_facet | Haoyu Tian Lingyu Zhao Linlin Wang Zijie Xia Wenqi Tan Zheng Jiao |
| author_sort | Haoyu Tian |
| collection | DOAJ |
| description | It continues to be a challenge to design innovative NiCoP composite anode materials to further improve rate capacity. In this work, bimetallic flower-like NiCoP encapsulated in an N-doped carbon shell (designated as NiCoP@NC) as a high-rate capable anode material for lithium-ion batteries (LIBs) was successfully designed and synthesized. The novel structure design combines the advantages of flower-like NiCoP (core) and N-doped carbon (shell). Flower-like NiCoP offers numerous interface and redox reaction sites for improving lithium storage, while the N-doped carbon shell effectively buffers volume expansion and enhances electrical conductivity. The synergistic effect between NiCoP and the N-doped carbon shell proposes a marvelous high-rate capacity (320 mA h/g even at 5 A/g) and a good cycle life with high reversible capacity (369.8 mA h/g for 700 cycles at 3 A/g with 81% retention). An investigation of kinetics performance shows that the introduction of the N-doped carbon shell enhances the charge transfer, and the pseudocapacitive behavior dominates the rapid Li<sup>+</sup> storage of the NiCoP@NC electrode. |
| first_indexed | 2024-03-11T01:18:16Z |
| format | Article |
| id | doaj.art-12ef94e65c7e458ea7aa58a736f105c0 |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-03-11T01:18:16Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
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| series | Batteries |
| spelling | doaj.art-12ef94e65c7e458ea7aa58a736f105c02023-11-18T18:18:53ZengMDPI AGBatteries2313-01052023-07-019736110.3390/batteries9070361Bimetallic Flower-like NiCoP Encapsulated in an N-Doped Carbon Shell with Enhanced Lithium Storage PropertiesHaoyu Tian0Lingyu Zhao1Linlin Wang2Zijie Xia3Wenqi Tan4Zheng Jiao5School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, ChinaInstitute for Sustainable Energy, College of Science, Shanghai University, Shanghai 200444, ChinaInstitute for Sustainable Energy, College of Science, Shanghai University, Shanghai 200444, ChinaSchool of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, ChinaInstitute for Sustainable Energy, College of Science, Shanghai University, Shanghai 200444, ChinaApplied Radiation Institute, Shanghai University, Shanghai 201800, ChinaIt continues to be a challenge to design innovative NiCoP composite anode materials to further improve rate capacity. In this work, bimetallic flower-like NiCoP encapsulated in an N-doped carbon shell (designated as NiCoP@NC) as a high-rate capable anode material for lithium-ion batteries (LIBs) was successfully designed and synthesized. The novel structure design combines the advantages of flower-like NiCoP (core) and N-doped carbon (shell). Flower-like NiCoP offers numerous interface and redox reaction sites for improving lithium storage, while the N-doped carbon shell effectively buffers volume expansion and enhances electrical conductivity. The synergistic effect between NiCoP and the N-doped carbon shell proposes a marvelous high-rate capacity (320 mA h/g even at 5 A/g) and a good cycle life with high reversible capacity (369.8 mA h/g for 700 cycles at 3 A/g with 81% retention). An investigation of kinetics performance shows that the introduction of the N-doped carbon shell enhances the charge transfer, and the pseudocapacitive behavior dominates the rapid Li<sup>+</sup> storage of the NiCoP@NC electrode.https://www.mdpi.com/2313-0105/9/7/361Li-ion batteries (LIBs)anode materialstransition bimetal phosphideN-doped carbon shell |
| spellingShingle | Haoyu Tian Lingyu Zhao Linlin Wang Zijie Xia Wenqi Tan Zheng Jiao Bimetallic Flower-like NiCoP Encapsulated in an N-Doped Carbon Shell with Enhanced Lithium Storage Properties Batteries Li-ion batteries (LIBs) anode materials transition bimetal phosphide N-doped carbon shell |
| title | Bimetallic Flower-like NiCoP Encapsulated in an N-Doped Carbon Shell with Enhanced Lithium Storage Properties |
| title_full | Bimetallic Flower-like NiCoP Encapsulated in an N-Doped Carbon Shell with Enhanced Lithium Storage Properties |
| title_fullStr | Bimetallic Flower-like NiCoP Encapsulated in an N-Doped Carbon Shell with Enhanced Lithium Storage Properties |
| title_full_unstemmed | Bimetallic Flower-like NiCoP Encapsulated in an N-Doped Carbon Shell with Enhanced Lithium Storage Properties |
| title_short | Bimetallic Flower-like NiCoP Encapsulated in an N-Doped Carbon Shell with Enhanced Lithium Storage Properties |
| title_sort | bimetallic flower like nicop encapsulated in an n doped carbon shell with enhanced lithium storage properties |
| topic | Li-ion batteries (LIBs) anode materials transition bimetal phosphide N-doped carbon shell |
| url | https://www.mdpi.com/2313-0105/9/7/361 |
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