1
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Huang BC, Tsui LY, Ramki S, Hsu HP, Lan CW. Synthesizing Si/SiOC composites through different sol-gel reaction routes for lithium-ion battery anode materials. Heliyon 2024; 10:e33612. [PMID: 39035543 PMCID: PMC11259886 DOI: 10.1016/j.heliyon.2024.e33612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 07/23/2024] Open
Abstract
Silicon oxycarbide (SiOC) exhibits good retention and a reasonable specific capacity and is an alternative to silicon used as an anode material for high-performance lithium-ion batteries. However, SiOC generally shows a low Initial Coulombic Efficiency (ICE), wasting the lithium from the cathode. This work explores different sol-gel routes to synthesize SiOC from silanes and compares their performance. We found that the crushed bulk acid-catalyzed SiOC is simple and cost-effective but with excellent performance. Adding dimethyldimethoxysilane (DMDMS) by decreasing the oxygen content further enhances the battery performance. Building upon the excellent performance of SiOC, we further embed nano-silicon into SiOC. The Si/SiOC composites achieved a significantly higher specific capacity of 2185 mAhg-1 and an impressive ICE of 77 % with acceptable battery retention.
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Affiliation(s)
- Bo-chen Huang
- Department of Chemical Engineering, National Taiwan University, Taipei, 106319, Taiwan
| | - Li-yan Tsui
- Department of Chemical Engineering, National Taiwan University, Taipei, 106319, Taiwan
| | - Settu Ramki
- Department of Chemical Engineering, National Taiwan University, Taipei, 106319, Taiwan
| | - Hsiao-ping Hsu
- Department of Chemical Engineering, National Taiwan University, Taipei, 106319, Taiwan
| | - Chung-wen Lan
- Department of Chemical Engineering, National Taiwan University, Taipei, 106319, Taiwan
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2
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Zhang Z, Zhang Y, Chen W, Zhang X, Yu L, Guan Z. Silver-Assisted Chemical Etching for the Fabrication of Porous Silicon N-Doped Nanohollow Carbon Spheres Composite Anodes to Enhance Electrochemical Performance. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3189. [PMID: 38998272 PMCID: PMC11242775 DOI: 10.3390/ma17133189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/21/2024] [Accepted: 06/26/2024] [Indexed: 07/14/2024]
Abstract
Silicon (Si) shows great potential as an anode material for lithium-ion batteries. However, it experiences significant expansion in volume as it undergoes the charging and discharging cycles, presenting challenges for practical implementation. Nanostructured Si has emerged as a viable solution to address these challenges. However, it requires a complex preparation process and high costs. In order to explore the above problems, this study devised an innovative approach to create Si/C composite anodes: micron-porous silicon (p-Si) was synthesized at low cost at a lower silver ion concentration, and then porous silicon-coated carbon (p-Si@C) composites were prepared by compositing nanohollow carbon spheres with porous silicon, which had good electrochemical properties. The initial coulombic efficiency of the composite was 76.51%. After undergoing 250 cycles at a current density of 0.2 A·g-1, the composites exhibited a capacity of 1008.84 mAh·g-1. Even when subjected to a current density of 1 A·g-1, the composites sustained a discharge capacity of 485.93 mAh·g-1 even after completing 1000 cycles. The employment of micron-structured p-Si improves cycling stability, which is primarily due to the porous space it provides. This porous structure helps alleviate the mechanical stress caused by volume expansion and prevents Si particles from detaching from the electrodes. The increased surface area facilitates a longer pathway for lithium-ion transport, thereby encouraging a more even distribution of lithium ions and mitigating the localized expansion of Si particles during cycling. Additionally, when Si particles expand, the hollow carbon nanospheres are capable of absorbing the resulting stress, thus preventing the electrode from cracking. The as-prepared p-Si utilizing metal-assisted chemical etching holds promising prospects as an anode material for lithium-ion batteries.
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Affiliation(s)
| | | | | | | | | | - Zisheng Guan
- College of Materials Science and Engineering, Nanjing Tech University, 30 South PuZhu Road, Nanjing 210009, China; (Z.Z.); (Y.Z.); (W.C.); (X.Z.); (L.Y.)
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3
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Li F, Wu H, Wen H, Wang C, Shen C, Su L, Liu S, Chen Y, Wang L. Constructing a Stable Integrated Silicon Electrode with Efficient Lithium Storage Performance through Multidimensional Structural Design. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8802-8812. [PMID: 38319879 DOI: 10.1021/acsami.3c17326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Silicon (Si) stands out as a highly promising anode material for next-generation lithium-ion batteries. However, its low intrinsic conductivity and the severe volume changes during the lithiation/delithiation process adversely affect cycling stability and hinder commercial viability. Rational design of electrode architecture to enhance charge transfer and optimize stress distribution of Si is a transformative way to enhance cycling stability, which still remains a great challenge. In this work, we fabricated a stable integrated Si electrode by combining two-dimensional graphene sheets (G), one-dimensional Si nanowires (SiNW), and carbon nanotubes (CNT) through the cyclization process of polyacrylonitrile (PAN). The integrated electrode features a G/SiNW framework enveloped by a conformal coating consisting of cyclized PAN (cPAN) and CNT. This configuration establishes interconnected electron and lithium-ion transport channels, coupled with a rigid-flexible encapsulated coating, ensuring both high conductivity and resistance against the substantial volume changes in the electrode. The unique multidimensional structural design enhances the rate performance, cyclability, and structural stability of the integrated electrode, yielding a gravimetric capacity (based on the total mass of the electrode) of 650 mAh g-1 after 1000 cycles at 3.0 A g-1. When paired with a commercial LiNi0.5Co0.2Mn0.3O2 cathode, the resulting full cell retains 84.8% of its capacity after 160 cycles at 2.0 C and achieves an impressive energy density of 435 Wh kg-1 at 0.5 C, indicating significant potential for practical applications. This study offers valuable insights into comprehensive electrode structure design at the electrode level for Si-based materials.
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Affiliation(s)
- Fenghui Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- School of Materials Science and Engineering, Henan Institute of Technology, Xinxiang 453003, China
| | - Hao Wu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hong Wen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chen Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chaoqi Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Liwei Su
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Sheng Liu
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300071, China
| | - Yifan Chen
- Hangzhou Vocational & Technical College, Hangzhou 310018, China
| | - Lianbang Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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4
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Zhang W, Gui S, Zhang Z, Li W, Wang X, Wei J, Tu S, Zhong L, Yang W, Ye H, Sun Y, Peng X, Huang J, Yang H. Tight Binding and Dual Encapsulation Enabled Stable Thick Silicon/Carbon Anode with Ultrahigh Volumetric Capacity for Lithium Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303864. [PMID: 37525330 DOI: 10.1002/smll.202303864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/09/2023] [Indexed: 08/02/2023]
Abstract
Silicon (Si) is regarded as one of the most promising anode materials for high-performance lithium-ion batteries (LIBs). However, how to mitigate its poor intrinsic conductivity and the lithiation/delithiation-induced large volume change and thus structural degradation of Si electrodes without compromising their energy density is critical for the practical application of Si in LIBs. Herein, an integration strategy is proposed for preparing a compact micron-sized Si@G/CNF@NC composite with a tight binding and dual-encapsulated architecture that can endow it with superior electrical conductivity and deformation resistance, contributing to excellent cycling stability and good rate performance in thick electrode. At an ultrahigh mass loading of 10.8 mg cm-2 , the Si@G/CNF@NC electrode also presents a large initial areal capacity of 16.7 mA h cm-2 (volumetric capacity of 2197.7 mA h cm-3 ). When paired with LiNi0.95 Co0.02 Mn0.03 O2 , the pouch-type full battery displays a highly competitive gravimetric (volumetric) energy density of ≈459.1 Wh kg-1 (≈1235.4 Wh L-1 ).
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Affiliation(s)
- Wen Zhang
- Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Siwei Gui
- Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Zihan Zhang
- Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Wanming Li
- Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Xinxin Wang
- Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Junhong Wei
- Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Shuibin Tu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Linxin Zhong
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Wu Yang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Hongjun Ye
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China
| | - Yongming Sun
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Xinwen Peng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Jianyu Huang
- Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China
| | - Hui Yang
- Department of Mechanics, School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
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5
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Yan X, Fu Z, Zhou L, Hu L, Xia Y, Zhang W, Gan Y, Zhang J, He X, Huang H. New Chemical Synthesis Strategy To Construct a Silicon/Carbon Nanotubes/Carbon-Integrated Composite with Outstanding Lithium Storage Capability. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17986-17993. [PMID: 36988389 DOI: 10.1021/acsami.3c02202] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The Si/C anode is one of the most promising candidate materials for the next-generation lithium-ion batteries (LIBs). Herein, a silicon/carbon nanotubes/carbon (Si/CNTs/C) composite is in situ synthesized by a one-step reaction of magnesium silicide, calcium carbonate, and ferrocene. Transmission electron microscopy reveals that the growth of CNTs is attributed to the catalysis of iron atoms derived from the decomposition of ferrocene. In comparison to a Si/C composite, the cycle stability of the Si/CNTs/C composite can obviously be improved as an anode for LIBs. The enhanced performance is mainly attributed to the following factors: (i) the perfect combination of Si nanoparticles and in situ grown CNTs achieves high mechanical integrity and good electrical contact; (ii) Si nanoparticles are entangled in the CNT cage, effectively reducing the volume expansion upon cycling; and (iii) in situ grown CNTs can improve the conductivity of composites and provide lithium ion transport channels. Moreover, the full cell constructed by a LiFePO4 cathode and Si/CNTs/C anode exhibits excellent cycling stability (137 mAh g-1 after 300 cycles at 0.5 C with a capacity retention rate of 91.2%). This work provides a new way for the synthesis of a Si/C anode for high-performance LIBs.
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Affiliation(s)
- Xiang Yan
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Zefeng Fu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Luoting Zhou
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Liuyi Hu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Yang Xia
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Wenkui Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Yongping Gan
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Jun Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Xinping He
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
| | - Hui Huang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, People's Republic of China
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6
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Wang X, Wang Y, Ma H, Wang Z, Xu X, Huang X. Solid Silicon Nanosheet Sandwiched by Self-Assembled Honeycomb Silicon Nanosheets Enabling Long Life at High Current Density for a Lithium-Ion Battery Anode. ACS APPLIED MATERIALS & INTERFACES 2023; 15:15409-15419. [PMID: 36924036 DOI: 10.1021/acsami.2c22203] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
A two-dimensional silicon nanosheet (2D Si NS) is promising as a lithium-ion battery anode. However, insufficient cycling life at high current density hampers its practical applications due to its easy fragileness. Rationally engineering the Si micro/nanostructure is promising to address this issue. Unfortunately, the precise construction of a dedicated micro/nanostructure into 2D Si NS meets serious challenges. Herein, a facile strategy is developed to synthesize a sandwich-like honeycomb Si NS/solid Si NS/honeycomb Si NS (h/s/h-Si NS) anode through self-assembled preparation of a sandwich-like honeycomb SiO2 NS/solid SiO2 NS/honeycomb SiO2 NS template, followed by magnesiothermic reduction. This unique structure effectively enhances the mechanical strength, enlarges the specific surface area, and reserves sufficient space to accommodate the anode volume change. A conductive carbon layer is further coated on the h/s/h-Si NS (h/s/h-Si@C NS) to construct a stable electrode/electrolyte interface. The optimal h/s/h-Si@C NS displays outstanding performance with high initial Coulombic efficiency (86%), high reversible capacity (1624 mAh g-1 after 100 cycles at 1000 mA g-1), good rate capability (over 1000 mAh g-1 at 4000 mA g-1), and long cycling life even at 4000 mA g-1 (93% retained capacity after 1000 cycles). This work provides a new strategy for constructing high-performance Si electrodes for lithium-ion battery applications.
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Affiliation(s)
- Xiaoxiao Wang
- Biochemical Engineering Research Center, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan 243032, P. R. China
| | - Yunlong Wang
- Biochemical Engineering Research Center, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan 243032, P. R. China
| | - Haoran Ma
- Biochemical Engineering Research Center, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan 243032, P. R. China
| | - Zhifei Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Xia Xu
- Biochemical Engineering Research Center, School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan 243032, P. R. China
| | - Xiaodong Huang
- School of Electronic Science and Engineering, Southeast University, Nanjing 210096, P. R. China
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7
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Nguyen DB, Ha VP, Vuong VD, Chien YH, Le TV, Chu CY. Simulation and Verification of the Direct Current Electric Field on Fabricating High Porosity f-MWCNTs Thin Films by Electrophoretic Deposition Technique. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3883-3894. [PMID: 36898055 DOI: 10.1021/acs.langmuir.2c03116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Electrophoretic deposition (EPD) is the potential process in high porosity thin films' fabrication or complex surface coating for perovskite photovoltaics. Here, the electrostatic simulation is introduced to optimize the EPD cell design for the cathodic EPD process based on functionalized multiwalled carbon nanotubes (f-MWCNTs). The similarity between the thin film structure and the electric field simulation is evaluated by scanning electron microscopy (SEM) and atomic force microscopy (AFM) results. The thin-film surface at the edge has a higher roughness (Ra) compared to the center position (16.48 > 10.26 nm). The f-MWCNTs at the edge position tend to be twisted and bent due to the torque of the electric field. The Raman results show that f-MWCNTs with low defect density are more easily to be positively charged and deposited on the ITO surface. The distribution of oxygen and aluminum atoms in the thin film reveals that the aluminum atoms tend to have adsorption/electrostatic attraction to the interlayer defect positions of f-MWCNTs without individually depositing onto the cathode. Finally, this study can reduce the cost and time for the scale-up process by optimizing the input parameters for the complete cathodic electrophoretic deposition process through electric field inspection.
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Affiliation(s)
- Duc-Binh Nguyen
- Department of Materials Science and Engineering, Feng Chia University, Taichung City, 40724, Taiwan
- Institute of Green Products, Feng Chia University, Taichung City, 40724, Taiwan
| | - Vinh-Phuc Ha
- Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, 740500, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, 740500, Vietnam
| | - Vinh-Dat Vuong
- Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, 740500, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, 740500, Vietnam
| | - Yi-Hsin Chien
- Department of Materials Science and Engineering, Feng Chia University, Taichung City, 40724, Taiwan
| | - Thang Van Le
- Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, 740500, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, 740500, Vietnam
| | - Chen-Yeon Chu
- Institute of Green Products, Feng Chia University, Taichung City, 40724, Taiwan
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8
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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, SWITZERLAND) 2023; 16:2451. [PMID: 36984331 PMCID: PMC10051277 DOI: 10.3390/ma16062451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [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.
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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
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Chang H, Park MS, Ho Kim J, Moon J. Defect mediated lithium adsorption on graphene-based silicon composite electrode for high capacity and high stability lithium-ion battery. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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10
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Meng L, Guo R, Peng J, An L, Zhao S. Facile synthesis of hairbrush like FeVO4@C/CC anode material with enhanced electrochemical performance for alkaline ion batteries. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01818-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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11
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Lv L, Wang Y, Huang W, Wang Y, Li X, Zheng H. Mechanism study on the cycling stability of silicon-based lithium ion batteries as a function of temperature. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Voropaeva DY, Safronova EY, Novikova SA, Yaroslavtsev AB. Recent progress in lithium-ion and lithium metal batteries. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Gu H, Wang Y, Zeng Y, Yu M, Liu T, Chen J, Wang K, Xie J, Li L. Boosting Cyclability and Rate Capability of SiO x via Dopamine Polymerization-Assisted Hybrid Graphene Coating for Advanced Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:17388-17395. [PMID: 35384645 DOI: 10.1021/acsami.2c01587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
SiOx suffers from the 200% volume change during cycling and low electronic conductivity, resulting in poor cyclability and rate capability as a lithium-ion battery anode. Herein, we demonstrate a dopamine polymerization-guided carbon coating for SiOx anodes (SiOx@PDA@GNH). SiOx@PDA@GNH delivers charge capacities of 1269 and 1140 mA h·g-1 at charge rates of 0.05 and 3 C, respectively, and a capacity retention of 79.60% after 150 cycles at 1 C. A full cell with LiNi0.8Co0.1Mn0.1O2 or cathode demonstrates a capacity retention of >80% after 100 cycles at the rate of 0.33 C with an area capacity over 3.2 mA h·cm-2. Suppressed crack and overgrowth of the SEI layer are the key contributions for the improved performance. These results enlighten a practical pathway for the designing and modifications of SiOx anodes for high energy density lithium-ion batteries.
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Affiliation(s)
- Haitao Gu
- State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Yong Wang
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yun Zeng
- Tibet Urban Development and Investment Co., Ltd., Lhasa 850000, China
| | - Meng Yu
- Tibet Urban Development and Investment Co., Ltd., Lhasa 850000, China
| | - Tong Liu
- State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Jian Chen
- State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Ke Wang
- State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Jingying Xie
- State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power-Sources, Shanghai 200245, China
| | - Linsen Li
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai Jiao Tong University Sichuan Research Institute, Chengdu 610213, China
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14
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Li S, Shen P, Zhou H, Du S, Zhang Y, Yan J. Synergistic effects of CNTs/SiO 2 composite fillers on mechanical properties of cement composites. RSC Adv 2022; 12:27253-27266. [PMID: 36276023 PMCID: PMC9513440 DOI: 10.1039/d2ra04127h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/19/2022] [Indexed: 11/21/2022] Open
Abstract
This paper investigated the hybridization use of carbon nanotubes (CNTs) with nano-SiO2 in cement composites. The (CNTs)/SiO2 composite fillers were designed and prepared by electrostatic self-assembly technology to reinforce cement composites. The mechanical properties, microstructure and hydration characteristics of cement composites incorporating CNTs/SiO2 fillers were systematically researched. The morphology and optical microscopy results show that the CNTs inside CNTs/SiO2 fillers tended to unwind due to the mechanical separation and steric hindrance of nano-SiO2 particles with certain size, and its agglomeration degree in the suspension greatly alleviated over time. With the appropriate incorporation of CNTs/SiO2 fillers (containing 0.10 wt% CNTs and 0.50 wt% nano-SiO2), the flexural strength, compressive strength and flexural toughness of the cement mortar matrix were sharply increased by 33.5%, 36.5% and 56.0% after curing for 28 days compared to the plain sample, respectively. Microscopic observations show that appropriate nano-additives can densify and refine the hydrated microstructure, and the crack-bridging, debonding and pull-out behaviors of CNTs were all observed. Hydration analysis quantitatively reveals that CNTs/SiO2 fillers significantly accelerated the cement hydration process by virtue of the nano-nucleating action. The reinforcing mechanisms of CNTs/SiO2 fillers can be attributed to the proposed synergistic effects of CNTs/SiO2 fillers, which mainly include the better dispersion stability of CNTs, the nucleating effect of nano-additives and the pozzolanic reaction by nano-SiO2, thus positively leading to increased mechanical properties. CNTs/SiO2 composite fillers are prepared by assembling CNTs with nano-SiO2 paticles. The synergistic reinforcing effects of the prepared CNTs/SiO2 fillers on cement composites were researched.![]()
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Affiliation(s)
- Shaojie Li
- Army Engineering University, Shijiazhuang 050003, China
| | - Ping Shen
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hang Zhou
- Army Engineering University, Shijiazhuang 050003, China
| | - Shiguo Du
- Army Engineering University, Shijiazhuang 050003, China
| | - Yuling Zhang
- Army Engineering University, Shijiazhuang 050003, China
| | - Jun Yan
- Hebei Jiaotong Vocational and Technical College, Shijiazhuang 050003, China
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