ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Zhiheng Tang,Ying Zhou,Birong Luo,Dejun Li,Bo Zhang
Silicon monoxide (SiO) holds great potential as a next-generation anode material for commercial lithium-ion batteries due to its high theoretical specific capacity. However, poor cycling stability and low initial Coulombic efficiency (ICE) present substantial challenges for its practical application. Herein, we modified the structure of commercial SiO through ball milling, followed by heating with the addition of the network modifier Li2CO3. The submicrometer-sized SiO reduces Li+ diffusion pathways within the SiO bulk, facilitating the Li+ insertion/extraction process and enabling excellent rate performance. Controlling the size of silicon nanodomains within SiO enhances the structural stability of the material during cycling, thereby significantly improving its cycling stability. The increased crystallinity of SiO2 suppresses irreversible reactions, leading to a higher ICE. Moreover, Li+ ions trapped within the Si–O–Si network form a lithium silicate glass-like phase, which provides efficient pathways for Li+ diffusion within the material, thereby enhancing its electrochemical performance. The optimized submicrometer SiO was mixed with graphite and coated with carbon to produce a submicrometer SiO/graphite@carbon composite anode. When assembled into a half-cell, the composite anode exhibited an initial discharge specific capacity of 1277.0 mA h g–1 at 0.1 A g–1, with an ICE of 74.3%. And this anode demonstrated a capacity retention of 79.7% after 300 cycles at 0.5 A g–1. Furthermore, during rate capability testing, it achieved a discharge specific capacity of 428.9 mA h g–1 at 1.6 A g–1.
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PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Nan Zhou,Yufan Wu,Qing Zhou,Yiran Li,Shihan Liu,Hongbo Zhang,Zhi Zhou,Mao Xia
Silicon monoxide (SiO) is regarded as a great potential anode material for high-energy lithium-ion batteries (LIBs) owing to the high theoretical specific capacity (2650 mAh g −1 ), low voltage platform, eco-friendly and rich reserves. However, the particle pulverization , induced by large volume change during (de)lithiation, can result in the capacity degrading significantly. As we all know, it is a good strategy that using TiO 2 to modify the SiO-based anode. TiO 2 can serve as rigid outer layer to keep the structural integrity. In addition, the electrochemical performances of monoclinic TiO 2 (B) are better than anatase and rutile TiO 2 . Therefore, compositing with TiO 2 (B) is an admissible method to enhance the electrochemical properties of SiO-based materials. And the pretreated-SiO/TiO 2 (B) composites (abbreviated as p-STB) are prepared by hydrothermal treatment at 180 °C for 12 h and then calcined at 325 °C for 2 h. In this paper, p-STB-1 and p-STB-2 are prepared that the weight ratios p-SiO and TiO 2 (B) are 4:1 and 3:1, respectively. The structure and components of composites are also performed on X-ray diffraction (XRD), Fourier transform infrared reflectance (FT-IR) spectroscopy, scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). For p-STB, TiO 2 (B) is mainly covered on the surface of pretreated SiO (p-SiO). The Li-ion diffusion coefficients of as-prepared materials are calculated by cyclic voltammetry and electrochemical impedance spectroscopy . The electrochemical test results suggest that the p-STB-1 has batter cycling performance (730 mAh g −1 after 100th cycle) and admirable rate capacity (450 mAh g −1 under 3.2 A g −1 ). The modified method, which was compositing with TiO 2 (B), is beneficial to the commercialization of SiO-based materials.
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高影响因子
eScience
·
2022
·
IF 0
Hanyin Zhang,Renzong Hu,Sirui Feng,Zhiqun Lin,Min Zhu
SiO-based materials represent a promising class of anodes for lithium-ion batteries (LIBs), with a high theoretical capacity and appropriate and safe Li-insertion potential. However, SiO experiences a large volume change during the electrochemical reaction, low Li diffusivity, and low electron conductivity, resulting in degradation and low rate capability for LIBs. Here, we report on the rapid crafting of SiO–Sn 2 Fe@C composites via a one-step plasma milling process, leading to an alloy of Sn and Fe and in turn refining SiO and Sn 2 Fe into nanoparticles that are well dispersed in a nanosized, few-layer graphene matrix. The Sn and Fe nanoparticles generated during the first Li-insertion process form a stable network to improve Li diffusivity and electron conductivity. As an anode material, the SiO–Sn 2 Fe@C composite manifests high reversible capacities, superior cycling stability, and excellent rate capability. The capacity retention is found to be as high as 95% and 84% at the 100th and 300th cycles under 0.3 C. During rate capability testing at 3, 6, and 11 C, the capacity retentions are 71%, 60%, and 50%, respectively. This study highlights that this simple, one-step plasma milling strategy can further improve SiO-based anode materials for high-performance LIBs.
研究领域:
材料科学
·
能源存储技术
·
纳米技术
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DOI
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Xiao Huang,Mingqi Li
To improve the cycling stability and rate capability of SiO electrodes, multi-channel and porous SiO@N-doped C (mp-SiO@N-doped C) rods are fabricated by the combination of electrospinning and heat treatment with the assistance of poly(methyl methacrylate) (PMMA). During annealing, in-situ PMMA degradation and gasification lead to the formation of multi-channel structure and more pores. As anodes for lithium ion batteries, the mp-SiO@N-doped C rods exhibit excellent cycling stability. At a current density of 400 mA g −1 , a discharge capacity of 806 mAh g −1 can be kept after 250 cycles, the retention of which is over than 100% versus the initial reversible capacity. Compared with the SiO@N-doped C rods synthesized without the help of PMMA, the mp-SiO@N-doped C rods exhibit more excellent rate capability. The excellent electrochemical performance is attributed to the special structure of the mp-SiO@N-doped C rods. In addition to the conductivity improved by carbon fibers, the multi-channel and porous structures not only make ions/electrons transfer and electrolyte diffusion easier, but also contribute to the structural stability of the electrodes.
研究领域:
材料科学
·
电化学
·
纳米科技
·
能源存储
·
功能材料
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2020
·
IF 4.65
Long Liu,Xinxi Li,Gen He,Guoqing Zhang,Guanji Su,Chenhui Fang
Silicon-based materials have been widely used as anode materials in lithium-ion batteries (LIBs) because of the high specific capacity. However, there exist some shortcomings, especially in the thermal stability of the batteries, as well as huge volume expansion (＞300%) causes structural cracking. Herein, a core-shell structured SiO@C/TiO 2 nanospheres has been successfully synthesized via ball milling and sol-gel method, the morphological, componential and thermal features are characterized with X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy. The results exhibit that the SiO could spontaneously absorb the huge volume expansion stress, the C/TiO 2 shell as a compact fence was utilized to effectively enhance the electrical conductivity and further control the integrity and stability of well-wrapped core-shell framework during the charge/discharge processes. The electrochemical analysis show the SiO@C/TiO 2 nanospheres possess a remarkably high initial coulomb efficiency of 97%. The reversible capacity can reach to 1565 mA h g −1 at 0.1 A g −1 after 100 cycles, which is higher than those of N–SiO (1353 mA h g −1 ) and SiO@C (1326 mA h g −1 ). Even at 2 A g −1 , it exhibit a discharge capacity of 844.6 mA h g −1 after 220 cycles. This excellent performance can be primarily attributable to the well-designed core-shell structure of SiO@C/TiO 2 nanospheres, where the outer rigid C/TiO 2 coating can not only effectively alleviate the large volume change of SiO but also maintain the stable structure of anode materials, which are considered as a promising candidate to the anode material for new generation power LIBs.
研究领域:
材料科学
·
电化学
·
纳米科技
·
能源存储
·
电池技术
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.3
Liying Pan,Qiu Zhang,Xueyue Lyu,Chenyang Zhang,Xinrui Wang,Jiawei Qi,Guangdong Zhao
Addressing the challenges associated with noise pollution problem necessitates the development of composite materials exhibiting both sound absorption and fire resistance under extreme environmental conditions. Conventional foam materials are limited by inadequate heat resistance, insufficient moisture resistance, and suboptimal functionality, rendering them unsuitable for such harsh environments. A new SiO 2 /C/SiBOC ceramic matrix porous sound-absorbing material was fabricated through a combination of sol-gel process, electrospinning, and organic impregnation techniques. Polyurethane foam (PUF) served as a template to establish a porous structure, while the SiBOC ceramic matrix conferred high-temperature resistance, and SiO 2 /C fiber reinforced the mechanical properties. Compared to traditional sound-absorbing materials, the developed composite demonstrates efficient sound absorption at low frequencies (NRC = 0.46) and across a broad frequency range (25–6500 Hz, α > 0.8). Additionally, it exhibits excellent thermal stability at elevated temperatures (up to 1400 °C), low thermal conductivity at room temperature (0.03463 W/m·K), high compressive strength (2.21 MPa), superior moisture resistance (contact angle θ = 101.4°), and a lightweight structure. This study contributes by proposing and validating a new design concept for porous ceramic composites, which can simultaneously balance acoustic, thermal, and mechanical properties as well as moisture resistance, effectively filling the gap in application areas of existing material systems.
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高影响因子
ACS Applied Energy Materials
·
2026
·
IF 5.5
Haoyang Tong,Min Zhong,Wenzhuo Shen,Jiali Zhang,Shouwu Guo
Abstract Unsaturated silicon oxide (SiOx) as one of the anode materials for lithium-ion batteries (LIBs) shows relatively high specific capacity, but its overall electrochemical performances remain to be improved. Herein, a facile synthetic approach is developed to deposit SiOx and amorphous carbon on spherical graphite particles getting core–shell structured graphite@SiOx/C (SG@SiOx/C) composites via tetraethyl orthosilicate and ascorbic acid as precursors. The homogeneous and dense SiOx/C layer can improve the structural integrity of the SG@SiOx/C anodes and afford the composites with manifest specific capacity for Li+ storage. To improve the initial Coulombic efficiency (ICE), the SG@SiOx/C composites are further chemically prelithiated. The prelithiated SG@SiOx/C exhibits an initial lithiation/delithiation capacity of 632.6/629.4 mAh g–1 with a remarkable ICE of 99.5%. The reversible specific capacity can remain at 390.5 mAh g–1 after 1000 cycles at a current density of 1C. This work offers technical guidance on how to synthesize high-performance graphite@SiOx composites, providing a pathway to high-energy-density LIBs.
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高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Yiqing Lu,Zhimin Zou,Yu Bai,Xin Wang,Hongwang Zhang,Chunhai Jiang
Commercialization of SiO/graphite (SiO/G) composite anode material has been partially conducted in modern-model Li-ion batteries but is still limited by its relatively high cost and inferior stability. Improving the Li-ion storage performance as well as lowering the manufacturing cost of SiO/G anode has been the ongoing target of many studies. Herein, a low cost SiO/G anode with good Li-ion storage performance is developed by facilely integrating SiO nanoparticles into spent graphite (SG) extracted from used LiFePO 4 batteries. The loose SG particles after repeated charge/discharge cycles can be easily exfoliated and combined with the SiO nanoparticles during the mechanical ball-milling treatment. Further processing the composite into spherical structure by spray-drying and pyrolysis results in practically applicable anode materials. The SiO/SG/C anode with a SiO mass ratio of 30 % exhibits the best overall performance including an excellent rate capability (385 mAh g −1 at 3 A g −1 ) and encouraging cycle stability (442 mAh g −1 after 300 cycles at 1 A g −1 ). The coin-type full cells coupling the pre-lithiated spherical SiO/SG anode and NCM811 cathode delivers a high energy density of 461 Wh kg −1 (based on the active masses of both electrodes) and good cycle performance (74.4 % capacity retention at 0.5C after 100 cycles). This work not only provides a high performance yet low cost SiO/G anode material, but explores a high value added way for the reuse of SG, thus can practically push forward the development of LIBs .
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高影响因子
ACS Applied Energy Materials
·
2023
·
IF 6.4
Yujie Wang,Chengyun Wang,Huangwang Mai,Weizhen Fan,Haosen Fan,Wei Yang,Fengming Ren,Shengzhou Chen
Although LiNi0.8Co0.1Mn0.1O2 (NCM811) has been widely used in lithium-ion batteries (LIBs) as cathode materials, the high content of nickel typically leads to performance deterioration and other safety issues due to the catalytic decomposition of electrolyte. Herein, we propose a strategy to improve the stability of electrolyte by adopting anhydride-based additives with benzene group (e.g., 6FDA, FPA, and PSA). The theoretical calculation, electrochemical test, and structural characterization indicate that the addition of PSA enables NCM811 to better cycling performance at high, ambient, and low temperatures for pouch cells with SiO/graphite as the anode owing to its higher reduction potential in comparison with that of 6FDA and FPA.
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高影响因子
ChemSusChem
·
2019
·Vol. 12
·期 14
·3377-3382
·
IF 7.804
Rusheng Fu,Yongkang Wu,Chongzhao Fan,Zuxin Long,Guangjie Shao,Zhaoping Liu
Graphical Breaking the ICE : The SiO anode in Li-ion batteries has low initial coulombic efficiency (ICE) because of the irreversible formation of Li 2 O and lithium silicates. Sn-mixed SiO shows great promise to address these issues by reactivating Li 2 O, in the inverse reaction to that occurring at the metal oxide anodes. Sn is shown to form an outstanding conductive phase, which boosts the reaction kinetics and also reactivates Li 2 O. The application of SiO anodes in Li-ion batteries is greatly restricted by its low initial coulombic efficiency (ICE). Usually, a pre-lithiation procedure is necessary to improve the ICE, but the available technologies are associated with safety issues. Metal (M)-mixed SiO shows great promise to address these issues by reactivating Li 2 O through the reaction M+Li 2 O→MO x +Li + , which is the inverse reaction to that occurring at MO x anodes. Sn is found to be a good choice of metal for this concept. Nanoscale Sn-mixed SiO composites are prepared by mechanical milling. Sn forms an outstanding conductive phase, which boosts the reaction kinetics and also reactivates the Li 2 O byproduct. Sn/SiO (1:2 w/w) delivers a significant improvement in ICE from 66.5 % to 85.5 %. A higher ICE value of >90 % is obtained when the Sn content is ≥50 wt %. However, additional electrolyte decomposition occurs, which is catalyzed by Sn. In addition, coarsening of the nano-Sn material reduces the inverse conversion reactivity of Sn/Li 2 O and subsequently results in rapid capacity fading. The quantitative analysis indicates that, in contrast to transition metals, the alloying and dealloying nature of Sn gives a 50 % improvement in reversible capacity, attributed to Sn/Li 2 O. This work gives a general strategy to choose metals for increasing the ICE of SiO x and metal oxides.
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高影响因子
JOURNAL OF POWER SOURCES
·
2017
·
IF 6.395
Qingrui Pan,Pengjian Zuo,Tiansheng Mu,Chunyu Du,Xinqun Cheng,Yulin Ma,Yunzhi Gao,Geping Yin
The micro-sized SiO-based composite anode material (d-SiO/G/C) for lithium-ion batteries (LIBs) is achieved via the disproportionation reaction of SiO followed by a pitch pyrolysis reaction. The d-SiO/G/C composite exhibits an initial reversible capacity of 905 mAh g −1 and excellent cycling stability. The initial Coulombic efficiency of the d-SiO/G/C composite can be significantly improved from 68.1% to 98.5% by the prelithiation of the composite anode using stabilized lithium metal powders (SLMP), which counteracts the irreversible capacity loss caused by the solid electrolyte interphase (SEI) formation and irreversible conversion reaction during the first lithiation . The micro-sized d-SiO/G/C composite anode with SLMP prelithiation maintains an excellent cycling stability, suggesting its great potential in practical application for high specific energy lithium ion batteries .
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Fei Dou,Liyi Shi,Pingan Song,Guorong Chen,Juan An,Hongjiang Liu,Dengsong Zhang
Silicon monoxide (SiO) has emerged as one promising anode material for lithium-ion battery owing to its high theoretical capacity and relatively small volume change compared with silicon based anode. However, poor conductivity extremely restricts its specific capacity and cycling stability of SiO, C-SiO is most considered to be addressed this issue. Despite that, the effect of the orderly arrangements of carbon coatings on the overall electrochemical performance of SiO anode remains unclear. It is more important to explore the structure of carbon coatings on the electrochemical properties of silicon based anode. Herein, we have much improved orderly array of carbon coatings for C-SiO by introducing 3% TiO 2 , and evidenced by Raman spectroscopy and HRTEM. The electrochemical results show that the TC-SiO with 3% TiO 2 exhibits striking advantages in cycling stability, high rate charge/discharge and interfacial stability properties compared with C-SiO with disorder carbon coatings. This work provides a new strategy for further improving conductivity and interfacial stability of C-Si based anode materials.
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高影响因子
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