NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Jie Huang,Yanlin Zhang,Junhong Lu,Haoyang Jiang,Ben Liang,Benyuan Wang,Dafang He,Haiqun Chen
Recently, silicon-based anode materials have garnered significant attention from researchers due to their high theoretical specific capacity. However, these materials are highly prone to volume expansion, which significantly hinders their further commercialization. Here, the skeleton of silicon nanoparticles (Si NPs) is constructed from metal–organic frameworks (MOFs) in order to buffer their volume increase and enhance electrochemical performance. In this study, a solvent-thermal reaction is conducted using a mixture of NiFe-MIL and sodium hydroxide solution to deposit a carbon layer around the Si NPs, while simultaneously creating a highly conductive graphene network. Si materials supported by inward multi-channel carbon were synthesized through high-temperature pyrolysis. This unique double-layer carbon structure endows the material with remarkable electrochemical properties, including enhanced cycle stability and lithium storage capacity. The Si@C–NiFe-MIL@reduced graphene oxide (Si@C–NiFe-MIL@rGO) electrode materials exhibit a high specific capacity of 2092.8 mA h g−1 at a current density of 50 mA g−1. Furthermore, they demonstrate a stable reversible capacity of 851 mA h g−1 after 200 cycles at a current density of 1000 mA g−1. This research may provide a different strategy for producing high-energy, reasonably priced silicon anodes for lithium-ion batteries (LIBs).
研究领域:
材料科学
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Huiqiao Liu,Yanan He,Kangzhe Cao,Yong Jiang,Xiaogang Liu,Qiang-Shan Jing,Lifang Jiao
Al has been considered as a promising Li-ion batteries anode. However, the volume expansion always makes the electrode in an unstable structure. Meanwhile, the natural Al 2 O 3 passivation layer may lead to a large voltage dip, which could interrupt the lithiation process and result in a limited capacity. Herein, we report a neat avenue to activate the commercial Al pellet electrode by replacing the Al 2 O 3 layer with Sn at room temperature. Not any acid or tedious process is needed. Benefiting from the elimination of Al 2 O 3 and high electrochemical-activity of Sn, the obtained Al@Sn pellet electrode delivers a reversible capacity of 959.5 mAh g −1 at 0.1 A g −1 , which is larger than that (395.7 mAh g −1 ) of the commercial Al pellet electrode and approaches the calculated theoretical capacity. Notably, the voltage dip is muchly lowered to 0.03 V from 0.1 V. When graphene oxide (GO) was further attached for relieving the volume expansion, the as-prepared Al@Sn@GO pellet electrode presents astonishing Li-ion storage properties both in half and full batteries. This work demonstrates that the cooperation of the Al 2 O 3 elimination and matrix addition is successful in promoting the Li-ion storage properties of Al anode, presenting an attractive vision for the development of practical Al-based anodes.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2024
·Vol. 31
·期 3
·552-561
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IF 5.6
Cao Kangzhe,Wang Sitian,He Yanan,Ma Jiahui,Yue Ziwei,Liu Huiqiao
Al is considered as a promising lithium-ion battery (LIBs) anode materials owing to its high theoretical capacity and appropriate lithation/de-lithation potential. Unfortunately, its inevitable volume expansion causes the electrode structure instability, leading to poor cyclic stability. What’s worse, the natural Al 2 O 3 layer on commercial Al pellets is always existed as a robust insulating barrier for electrons, which brings the voltage dip and results in low reversible capacity. Herein, this work synthesized core–shell Al@C–Sn pellets for LIBs by a plus-minus strategy. In this proposal, the natural Al 2 O 3 passivation layer is eliminated when annealing the pre-introduced SnCl 2 , meanwhile, polydopamine-derived carbon is introduced as dual functional shell to liberate the fresh Al core from re-oxidization and alleviate the volume swellings. Benefiting from the addition of C–Sn shell and the elimination of the Al 2 O 3 passivation layer, the as-prepared Al@C–Sn pellet electrode exhibits little voltage dip and delivers a reversible capacity of 1018.7 mAh·g −1 at 0.1 A·g −1 and 295.0 mAh·g −1 at 2.0 A·g −1 (after 1000 cycles), respectively. Moreover, its diffusion-controlled capacity is muchly improved compared to those of its counterparts, confirming the well-designed nanostructure contributes to the rapid Li-ion diffusion and further enhances the lithium storage activity.
研究领域:
材料科学
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电化学
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能源存储
·
纳米结构设计
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金属基复合材料
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yu Jing,Guangchao Li,Zhixing Wang,Xinhai Li,Wenjie Peng,Huajun Guo,Hui Duan,Guochun Yan,Jiexi Wang
Silicon (Si) is considered as one of the most promising candidates for next-generation lithium-ion batteries with high energy density. The main problems are the severe volume expansion and continuous interfacial side reaction of Si that hinder its further application. It can be an effective way by constructing a robust coating layer outside of Si to impede/alleviate the above effect. SiOx with high mechanical strength can largely promote the electrochemical performance of Si. Herein, Si@SiOx material with high specific surface area, high porosity, and controllable coating was synthesized via a simple solid–liquid reaction by LiOH solution etching effect. The etching/oxidation mechanism of Si under alkaline conditions was thoroughly investigated. The surface oxide layer of Si was beneficial to the formation of a solid electrolyte interphase (SEI) with excellent stability and high Li+ conductivity, while its high-porosity structure reduces the volume expansion of the material by approximately 110%. Under the synergistic effect of etching-oxidation, the modified material exhibited superior electrochemical properties. When employed as anode materials, the specific capacity was as high as 3101.5 mAh g–1 and maintained at 841.0 mAh g–1 after 500 cycles at 1 A g–1.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xiaofang Liu,Manman Yuan,Wenhua Shi,Anmin Fei,Yawen Tian,Zhi-Yi Hu,Lihua Chen,Yu Li,Bao-Lian Su
Silicon (Si) is considered as the most likely choice for the high-capacity lithium-ion batteries owing to its ultrahigh theoretical capacity (4200 mA h g–1) being over 10 times than that of traditional graphite anode materials (372 mA h g–1). However, its widespread application is limited by problems such as a large volume expansion and low electrical conductivity. Herein, we design a hollow nitrogen-doped carbon-coated silicon (Si@Co-HNC) composite in a water-based system via a synergistic protecting-etching strategy of tannic acid. The prepared Si@Co-HNC composite can effectively mitigate the volume change of silicon and improve the electrical conductivity. Moreover, the abundant voids inside the carbon layer and the porous carbon layer accelerate the transport of electrons and lithium ions, resulting in excellent electrochemical performance. The reversible discharge capacity of 1205 mA h g–1 can be retained after 120 cycles at a current density of 0.5 A g–1. In particular, the discharge capacity can be maintained at 1066 mA h g–1 after 300 cycles at a high current density of 1 A g–1. This study provides a new strategy for the design of Si-based anode materials with excellent electrical conductivity and structural stability.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Dajin Liu,Zhilong Han,Jingqi Ma,Lingfeng Gao,Jie Cai,Lina Zhang,Shijie Cheng,Jia Xie
SiO x anodes hold great promise for next-generation lithium-ion batteries (LIBs) due to the high capacity and enhanced cycling stability versus silicon. However, its long-term development is hampered by seeking a scalable and effective method to tackle the issues of low conductivity and large volume expansion. Herein, a novel anode material is constructed by wrapping SiO x into PVA derived carbon layer and N-doped carbon (NC) nanosheets derived from exfoliated chitin nanosheets. The SiO x nanoparticles tightly encapsulated by the chitin nanosheets and PVA are transformed to robust SiO x @NC composites after pyrolysis. The encapsulation of PVA derived carbon layer and the NC sheets enhances the conductivity, relieves the volume change, and contributes to forming a stable SEI film. As a result, the prepared SiO x @NC-2 anode delivers a stable cycling performance and competitive rate capability. After 300 cycles at 0.5 A g −1 , a relatively high capacity of 602 mA h g −1 is maintained. The cost-effective precursors and facile synthetic route can promote the application of the SiO x @NC composites as anode materials in energy storage, as well as facilitating the large-scale application of the biowaste derived chitin.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ChemSusChem
·
2018
·Vol. 11
·期 13
·2130-2137
·
IF 7.411
Kai Yao,Zhanwei Xu,Zhi Li,Xinyue Liu,Xuetao Shen,Liyun Cao,Jianfeng Huang
Graphical Letting steam do the work : A grain-like MoS 2 is synthesized by sulfiding MoO 3 using a highly concentrated sulfur vapor. MoS 2 grows epitaxially on three lattice planes, giving rise to particulate MoS 2 coated with MoS 2 nanosheet. Such an architecture gives rise to good dispersity and sufficient distance between neighbors to accommodate the volume change associated with sodiation/desodiation and exhibits a high and stable capacity when used in a sodium-ion battery. MoS 2 is a promising anode material for sodium-ion batteries (SIBs) due to its attractive theoretical capacity and low cost. MoS 2 generally presents a sheet-like structure based on its (002) lattice plane; however, such a structure tends to result in agglomeration and stacking of the sheets that cannot accommodate volume expansion, resulting in poor cyclability. Herein, grain-like MoS 2 particulates (G-MoS 2 ) are synthesized by sulfiding MoO 3 in highly concentrated sulfur vapor, which results in epitaxial growth of MoS 2 in (002), (100), and (110) lattice planes, with the product consisting of MoS 2 particulates of about 300 nm coated with few-layered MoS 2 nanosheets. The unique G-MoS 2 architecture ensures good dispersion and sufficient distance to accommodate volume expansion during sodiation/desodiation, which effectively prevents stacking of MoS 2 , maintaining structural stability. When employed as the working electrode for SIB, G-MoS 2 delivers a high reversible capacity of 324 mAh g −1 at 0.5 A g −1 , retaining 312 mAh g −1 over 300 cycles with an average coulombic efficiency of 99.8 %. Even when G-MoS 2 is cycled at a high current density (2.0 A g −1 ), the retained capacity is 175 mAh g −1 after 400 cycles. Comparison with literature reveals that these capacities are among the more promising reversible values reported for pure MoS 2 .
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 16
·9716-9725
·
IF 10.733
Yuan Tian,Yongling An,Shenglin Xiong,Jinkui Feng,Yitai Qian
Metal-based anode materials such as Sb, Sn, Bi, etc., attract great attention for battery use due to their high electronic conductivity and high energy density. However, the large volume expansion during the alloying–dealloying process results in fast performance decay. In this work, we successfully grow hierarchical Sb, Sn and Bi firmly on MXene paper via a facile one-step electrodeposition process in a green ethylene glycol-based system. As robust, flexible, free-standing and binder-free anodes for potassium-ion batteries, the hierarchical structure provides a short diffusion distance for potassium ions and buffer volume change during the potassiation/depotassiation process. Highly conductive and flexible MXene paper serves as an elastic current collector providing an electronic highway to facilitate electron transport and accommodate volume change during the cycling process. MXene@Sb delivers a high reversible capacity of 516.8 mA h g−1, a high rate capacity of 270 mA h g−1 at 500 mA g−1, and stable capacity retention with a capacity fading rate of only 0.042% per cycle. This work may also be interesting in relation to research on other rechargeable batteries, catalysts, sensors, etc.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2023
·Vol. 29
·期 9
·3505-3515
·
IF 2.8
Zhang Ya-hui,Wang Jia-le,Yan Hong-yang,Zhao Jiu-tong,Wang Dan-dan,Luo Shao-hua,Wang Qing,Liu Xin
Due to the synergistic effect between multiple elements, bimetallic selenides materials can generate more active sites in the electrochemical reaction process, which can significantly improve the electrical conductivity for anode materials. Nevertheless, it is liable to produce severe volume expansion and exhibit the poor electrochemical performance. Therefore, we decided to modify it by carbon cladding; the carbon-coated short rod-like NiCoSe 2 (NiCoSe 2 @C) nanomaterials were synthesized through facile hydrothermal reaction, dopamine coating, and carbonization process. It was found that the as-prepared NiCoSe 2 @C nanomaterial exhibits stable structure, outstanding cycling stability, and high pseudocapacitive contribution. Specifically, the specific charging capacity is 370.6 mAh g −1 (0.1 A g −1 , 100 cycles) and 304.8 mAh g −1 (2 A g −1 , 600 cycles) as anode when used for SIBs. Comparing with the pure NiCoSe 2 nanomaterial, the construction of carbon layer can mitigate the effect of volume expansion and reduce the generation of adverse materials, thus enhancing the cycling stability.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Xiaoqing Huang,Wenbiao Zhang,Chaojin Zhou,Lichun Yang,Hui Wang,Qingsheng Gao,Min Zhu
Volume expansion and poor conductivity result in poor cyclability and low rate capability, which are the major challenges of transition-metal oxide as anode materials for sodium-ion batteries (SIBs). Herein, N -doped carbon encapsulated CoMoO 4 (CoMoO 4 @NC) nanorods are developed as excellent anode materials for SIBs with long-cycle life. The N -doped carbon shells serve as buffer to accommodate severe volume changes during sodiation/desodiation, and at the same time improve electronic conductivity and activate surface sites of CoMoO 4 . The optimized composite presents rapid reaction kinetics and excellent cycle stability. Even at a high current density of 1 A g −1 , it still shows long-cycle life and maintains specific capacity of 190 mAh g −1 after 3200 cycles. Furthermore, CoMoO 4 @NC anode is applied to match with Na 3 V 2 (PO 4 ) 3 cathode to assemble full-cells, in which it accomplishes reversible capacity of 152 mAh g −1 after 100 cycles, with capacity retention of 75% at a current density of 1 A g −1 , highlighting the practical application for SIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Coatings
·
2022
·Vol. 12
·期 10
·1515
·
IF 3.236
Hao Tang,Yuanyuan Xu,Li Liu,Decheng Zhao,Zhen Zhang,Yutong Wu,Yi Zhang,Xiang Liu,Zhoulu Wang
Silicon possesses a high theoretical specific capacity and is a promising high-performance anode material for lithium-ion batteries (LIBs). However, it shows a poor cycling performance because of volume expansion. A hollow structure can improve Si cycling performance, and the template method is one of the most common methods for hollow micro/nanosphere preparation. A polystyrene (PS) microsphere has the advantages of having a uniform and controllable particle size, easy modification, and high stability, thus being an ideal template for preparing hollow structure material. Herein, PS microspheres are used as templates to obtain hollow silica spheres, and then obtain hollow silicon spheres with an inner pore diameter of ~50 nm by a magnesium thermal reduction method. Lithium-ion battery anode material is obtained using carbon nanotubes supporting hollow silicon spheres (Si-CNTs). Si-CNTs exhibit excellent cycling performance (1188 mAh g−1after 200 cycles) and excellent rate capability (484 mAh g−1at 1 A g−1). Hollow porous Si-CNTs show great potential, providing a promising idea for solving the volume expansion problem of Si.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
Energy & Environmental Science
·
2022
·Vol. 15
·期 12
·5240-5250
·
IF 39.714
Hanning Zhang,Pengyu Chen,Huan Xia,Gang Xu,Yaping Wang,Tengfei Zhang,Wenwen Sun,Muhammadali Turgunov,Wei Zhang,ZhengMing Sun
Given their high theoretical capacity, alloy-based anodes are promising candidates for lithium-ion batteries (LIBs) to meet the stringent demand of today's portable electronic devices and electric vehicles. However, the intrinsic limitations of volume expansion and irreversible pulverization lead to the sharp capacity decay and short cyclic life of the LIBs. Liquid metal (LM), possessing an inborn large capacity and inheriting deformability as liquids, can fundamentally avoid a large volume change during the electrochemical reactions. Herein, we report a facile strategy to self-assemble 2D Ti3C2Tx MXene into a 3D architecture, and simultaneously in situ encapsulate eutectic gallium indium (EGaIn) within the individual “MXene cell”. Inside the cell, the extraction of lithium ions from the ternary solid alloy brings LM back to the binary liquid state, enabling a self-healing process of the cracked or pulverized structure; outside the cell, the elastic network of the Ti3C2Tx skeleton buffers the volume expansion of the lithiated EGaIn. The as-prepared LM-Ti3C2Tx anode exhibited a superior rate capability (489 mA h g−1 at 5 A g−1) and excellent cycling stability (409.8 mA h g−1 after 4500 cycles at 5 A g−1, 90.8% capacity retention). Furthermore, we demonstrated that the reversible liquid–solid phase transformation and the formation of a distinct indium core/gallium shell structure is responsible for its self-healing properties. This work shows great potential for solving the inherent volume expansion problems of alloy-based anode materials.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）