1
|
Mi C, Luo C, Wang Z, Zhang Y, Yang S, Wang Z. Cu and Ni Co-Doped Porous Si Nanowire Networks as High-Performance Anode Materials for Lithium-Ion Batteries. Materials (Basel) 2023; 16:6980. [PMID: 37959577 PMCID: PMC10650621 DOI: 10.3390/ma16216980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023]
Abstract
Due to its extremely high theoretical mass specific capacity, silicon is considered to be the most promising anode material for lithium-ion batteries (LIBs). However, serious volume expansion and poor conductivity limit its commercial application. Herein, dealloying treatments of spray dryed Al-Si-Cu-Ni particles are performed to obtain a Cu/Ni co-doped Si-based anode material with a porous nanowire network structure. The porous structure enables the material to adapt to the volume changes in the cycle process. Moreover, the density functional theory (DFT) calculations show that the co-doping of Cu and Ni can improve the capture ability towards Li, which can accelerate the electron migration rate of the material. Based on the above advantages, the as-prepared material presents excellent electrochemical performance, delivering a reversible capacity of 1092.4 mAh g-1 after 100 cycles at 100 mA g-1. Even after 500 cycles, it still retains 818.7 mAh g-1 at 500 mA g-1. This study is expected to provide ideas for the preparation and optimization of Si-based anodes with good electrochemical performance.
Collapse
Affiliation(s)
- Can Mi
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
- Key Laboratory for New Type of Functional Materials in Hebei Province, Hebei University of Technology, Tianjin 300401, China
- Collaborative Innovation Center for Vehicle Lightweighting, Hebei University of Technology, Tianjin 300401, China
| | - Chang Luo
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Zigang Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Yongguang Zhang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Shenbo Yang
- Hongzhiwei Technology (Shanghai) Co., Ltd., Shanghai 201206, China
| | - Zhifeng Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China
- Key Laboratory for New Type of Functional Materials in Hebei Province, Hebei University of Technology, Tianjin 300401, China
- Collaborative Innovation Center for Vehicle Lightweighting, Hebei University of Technology, Tianjin 300401, China
| |
Collapse
|
2
|
Mery A, Chenavier Y, Marcucci C, Benayad A, Alper JP, Dubois L, Haon C, Boime NH, Sadki S, Duclairoir F. Toward the Improvement of Silicon-Based Composite Electrodes via an In-Situ Si@C-Graphene Composite Synthesis for Li-Ion Battery Applications. Materials (Basel) 2023; 16:2451. [PMID: 36984331 PMCID: PMC10051277 DOI: 10.3390/ma16062451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Using Si as anode materials for Li-ion batteries remain challenging due to its morphological evolution and SEI modification upon cycling. The present work aims at developing a composite consisting of carbon-coated Si nanoparticles (Si@C NPs) intimately embedded in a three-dimensional (3D) graphene hydrogel (GHG) architecture to stabilize Si inside LiB electrodes. Instead of simply mixing both components, the novelty of the synthesis procedure lies in the in situ hydrothermal process, which was shown to successfully yield graphene oxide reduction, 3D graphene assembly production, and homogeneous distribution of Si@C NPs in the GHG matrix. Electrochemical characterizations in half-cells, on electrodes not containing additional conductive additive, revealed the importance of the protective C shell to achieve high specific capacity (up to 2200 mAh.g-1), along with good stability (200 cycles with an average Ceff > 99%). These performances are far superior to that of electrodes made with non-C-coated Si NPs or prepared by mixing both components. These observations highlight the synergetic effects of C shell on Si NPs, and of the single-step in situ preparation that enables the yield of a Si@C-GHG hybrid composite with physicochemical, structural, and morphological properties promoting sample conductivity and Li-ion diffusion pathways.
Collapse
Affiliation(s)
- Adrien Mery
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, F-38000 Grenoble, France
| | - Yves Chenavier
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, F-38000 Grenoble, France
| | - Coralie Marcucci
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, F-38000 Grenoble, France
| | - Anass Benayad
- Université Grenoble Alpes, CEA, LITEN, DTNM, F-38054 Grenoble, France
| | - John P. Alper
- Université Paris Saclay, IRAMIS, UMR NIMBE, CEA Saclay, F-91191 Gif-sur-Yvette, CEDEX, France
| | - Lionel Dubois
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, F-38000 Grenoble, France
| | - Cédric Haon
- Université Grenoble Alpes, CEA, LITEN, DEHT, F-38054 Grenoble, France
| | - Nathalie Herlin Boime
- Université Paris Saclay, IRAMIS, UMR NIMBE, CEA Saclay, F-91191 Gif-sur-Yvette, CEDEX, France
| | - Saïd Sadki
- Université Grenoble Alpes, CEA, CNRS, IRIG-SyMMES, F-38000 Grenoble, France
| | | |
Collapse
|
3
|
Jin C, Wang Z, Luo C, Qin C, Li Y, Wang Z. Dealloyed Porous NiFe(2)O(4)/NiO with Dual-Network Structure as High-Performance Anodes for Lithium-Ion Batteries. Int J Mol Sci 2023; 24. [PMID: 36835563 DOI: 10.3390/ijms24044152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/09/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
As high-capacity anode materials, spinel NiFe2O4 aroused extensive attention due to its natural abundance and safe working voltage. For widespread commercialization, some drawbacks, such as rapid capacity fading and poor reversibility due to large volume variation and inferior conductivity, urgently require amelioration. In this work, NiFe2O4/NiO composites with a dual-network structure were fabricated by a simple dealloying method. Benefiting from the dual-network structure and composed of nanosheet networks and ligament-pore networks, this material provides sufficient space for volume expansion and is able to boost the rapid transfer of electrons and Li ions. As a result, the material exhibits excellent electrochemical performance, retaining 756.9 mAh g-1 at 200 mA g-1 after cycling for 100 cycles and retaining 641.1 mAh g-1 after 1000 cycles at 500 mA g-1. This work provides a facile way to prepare a novel dual-network structured spinel oxide material, which can promote the development of oxide anodes and also dealloying techniques in broad fields.
Collapse
|