Materials Today Energy
·
2022
·
IF 9.257
Can Luo,Ruyun Qiu,Gen Li,Xiaojun Shi,Zhifei Mao,Rui Wang,Jun Jin,Beibei He,Yansheng Gong,Huanwen Wang
Sodium-ion hybrid capacitors (SIHCs) are promising technology for energy storage because they combine the merits of high-energy batteries and high-power capacitors as well as naturally abundant sodium resource. However, conventional SIHCs consume a mass of electrolyte during the charge process, thus generating some side reactions at high potentials. In this work, we report a novel rocking-chair SIHC using Na 3 V 2 (PO 4 ) 3 /carbon composite nanofibers (denoted as “NVP@CNF”) as binder-free cathodes and SiO 2 -templated hollow carbon nanofibers (HCNF) as the capacitive anode. Resulting from the unique carbon-encapsulation configuration, the NVP@CNF cathode demonstrates excellent rate capability (105.8 mAh/g at 0.5C; 66.9 mAh/g at 100C) and long-term cycling stability (98% capacity retention after 2000 cycles) in sodium half-cells. The as-fabricated HCNF||NVP@CNF SIHC device delivers a high energy density of 216.4 Wh/kg at a power density of 381.8 W/kg. Even at an increased power density of 15272.7 W/kg, the energy density is still as high as 123.0 Wh/kg (based on the total mass of active materials in both electrodes). These results provide a new route to design various flexible self-supporting composite fiber electrodes through a simple electrospinning encapsulation strategy, which finally pushes the development of next-generation hybrid energy storage devices.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
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IF 6.371
Hongxia Chen,Yutian Yang,Rihuang Nie,Cheng Li,Shuangwu Xu,Mengcheng Zhou,Xinyu Zhang,Hongming Zhou
Na 3 V 2 (PO 4 ) 3 has been widely studied due to its stable three-dimensional transmission channel structure as a cathode electrode of sodium ion batteries , but its micro particle size and low intrinsic electronic conductivity limit its further development. Therefore, hierarchical porous micro-nano NVP/C materials were successfully prepared using a metal-organic frameworks (MOFs) precursor. Because of the unique hierarchical porous micro-nano structure, 3D highly conductive network between surface and particles, and high specific surface area, M-NVP/C exhibits outstanding rate capability (95.0 mAh g −1 at a current density of 10 C) and extraordinary stable cycle life (the capacity decays from 111.2 mAh g −1 to 108.8 mAh g −1 after 500 cycles at 1 C, with a capacity retention rate of 97.8 %). This method provides a promising pathway for the application of MOFs in battery materials and promotes the development of SIBs in large-scale energy storage systems.
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高影响因子
Journal of Materials Chemistry A
·
2015
·Vol. 4
·期 4
·1180-1185
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IF 7.443
Junqi Fang,Suqing Wang,Zhitong Li,Hongbin Chen,Lu Xia,Liangxin Ding,Haihui Wang
Porous Na3V2(PO4)3@C nanocomposites enwrapped in a 3D graphene network were prepared using a simple freeze-drying-assisted thermal treatment method. The carbon layer and 3D graphene network provide not only a 3D conductive network but also a double restriction on the aggregation of Na3V2(PO4)3 particles that have a high crystallinity under high temperature treatment. Due to the high electrochemical activity of the highly crystalline Na3V2(PO4)3 nanoparticles and 3D conductive network, the novel NVP@C/G material displays a superior rate capability (76 mA h g−1 at 60C) and ultra-long cyclability (82% capacity retention for 1500 cycles at 40C) when used in sodium-ion batteries.
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高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2017
·Vol. 23
·期 66
·16898-16905
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IF 5.317
Jing Zeng,Yang Yang,Shaobo Lai,Jianxing Huang,Yiyong Zhang,Jing Wang,Jinbao Zhao
Graphical Cathode for magnesium-ion batteries : An electrochemically desodiated phase NaV 2 (PO 4 ) 3 /C has been developed as a high-voltage cathode material (ca. 2.5 V vs. Mg 2+ /Mg) for rechargeable magnesium batteries, offering good cycle performance. The electrochemical reaction involves an intercalation mechanism and shows good reversibility. The lack of suitable high-voltage cathode materials has hindered the development of rechargeable magnesium batteries (RMBs). Here, mesoporous Na 3 V 2 (PO 4 ) 3 /C (NVP/C) spheres have been synthesized through a facile spray-drying–annealing method, and their electrochemically desodiated phase NaV 2 (PO 4 ) 3 /C (ED-NVP/C) has been investigated as an intercalation host for Mg 2+ ions. The obtained ED-NVP/C exhibits an average discharge voltage of around 2.5 V (vs. Mg 2+ /Mg), higher than those of most previously reported cathode materials. In addition, it can deliver an initial discharge capacity of 88.8 mA h g −1 at 20 mA g −1 , with good cycling stability. Ex situ X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) results demonstrate that the electrochemical reaction is based on an intercalation mechanism and shows good reversibility. Galvanostatic intermittent titration technique (GITT) data have revealed that the intercalation process involves a two-phase transition. The reported ED-NVP/C cathode material with high working voltage offers promising potential for application in RMBs.
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PubMed
高影响因子
DALTON TRANSACTIONS
·
2024
·Vol. 53
·期 4
·1849-1861
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IF 3.5
Haodi Dong,Changcheng Liu,Que Huang,Yanjun Chen
Nowadays, the poor conductivity and unstable structure have become obstacles for the popularization of Na3V2(PO4)3 (NVP). In the current work, a dual-modified Mn0.1Cl0.3-NVP composite doped with Mn and Cl is prepared by a facile sol–gel method. When Mn2+ with a large ionic radius replaces small V3+, it can improve the stability of the NVP crystal structure. In addition, the replacement of V3+ by Mn2+ in a low valence state can generate redundant hole carriers, which is conducive to the rapid transport of electrons. The substitution of PO43− by Cl−, which is more electronegative, can reduce the impedance and facilitate the movement of Na+. Owing to the synergistic effect of Mn and Cl co-substitution, the structural stability of NVP was systematically enhanced, and the electron transfer and ion diffusion were effectively improved. Consequently, the optimized Mn0.1Cl0.3-NVP sample demonstrated superior electrochemical performance and kinetic properties. It exhibited a high reversible capacity of 109.2 mA h g−1 at 0.1C. Even at 15 and 30C, high discharge capacities of 70.3 mA h g−1 and 68.2 mA h g−1 were observed after 2000 cycles with capacity retention above 80%. Moreover, it delivered remarkable capacities of 77.1 and 73.4 mA h g−1 at 100 and 200C with retained capacity values of 50.3 and 47 mA h g−1, respectively, after 2000 cycles. Furthermore, the assembled Mn0.1Cl0.3-NVP//HC full cell delivered a high value of 94.7 mA h g−1 and lit LED bulbs, indicating its excellent application potential.
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高影响因子
ChemSusChem
·
2022
·Vol. 15
·期 19
·e202201121
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IF 9.14
Dong Yan,Shuhao Xiao,Xinyan Li,Rui Wu,Jinxia Jiang,Xiaobin Niu,Jun Song Chen
Graphical Balancing act : Boron-doped Na 3 V 2 (PO 4 ) 3 is synthesized through a facile electrospinning method. NVP@carbon with a balanced content of BCO 2 and BC 2 O exhibits the best sodium storage properties. BC 2 O mainly improves the sodium diffusion and BCO 2 enhances the structural stability. Na 3 V 2 (PO 4 ) 3 (NVP) is a widely studied cathode material for sodium-ion batteries because of its high ionic conductivity and attractive charge/discharge plateau (3.4 V vs. Na/Na + ). However, its poor electronic conductivity and severe volume expansion during sodium storage need to be addressed before its intensive application could be realized. Herein, boron-doped NVP was synthesized through a facile electrospinning method. By adding boric acid into the reaction mixture during electrospinning followed by carbonization, boron could be directly inserted into the carbon matrix, giving rise to B-doped carbon nanofiber wrapped NVP. By tuning the doping amount, the boron-containing configurations could be facilely manipulated, playing different roles in promoting the sodium storage properties of the composite. Based on the calculation results, BC 2 O enhanced sodium diffusion by lowering the energy barrier, while BCO 2 improved the structural stability. Due to these specific functionalities of the configurations, the as-prepared composite with a balanced amount of BC 2 O and BCO 2 demonstrated superior sodium storage capacity of 113 mAh g −1 at 1 C, outstanding long cycling performance of 103 mAh g −1 at 10 C, and retained 91 mAh g −1 after 1500 cycles. This gave rise to a capacity loss of only 0.08‰ per cycle, much better than the undoped counterpart.
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PubMed
高影响因子
IONICS
·
2023
·Vol. 29
·期 6
·2271-2285
·
IF 2.8
Yan Ji,Zhu Jiuzhou,Zhang Libo,Li Yan,Wang Heng,Wang Lizhen
Lithium-sulfur batteries present a promising potential in meeting the demand of high energy and low-cost energy storage system. However, it suffers from the severe shuttle effect of lithium polysulfides and sluggish sulfur chemistry kinetics. Herein, NASICON-type ceramic material Na 3 V 2 (PO 4 ) 3 is developed to decorate on polypropylene (PP) membrane as a catalysis layer to adsorb lithium polysulfides and accelerate the conversion of sulfur electrochemistry redox reaction. Meanwhile, the sophisticated architecture on separator provides additional lithium ion intercalaction-extraction behavior, which helps to hamper the shuttle effect of lithium polysulfides. The collaborative contribution of above virtues endows the Li–S batteries with excellent capacitive performance of 1045.3 mA h g −1 at 0.2 C current density, superior rate capability (590.4 mA h g −1 ) at 4 C although the cycling stability over 400 cycles at 4C is still needed to improve. This work offers an elaborate ceramic coating layer engineering on separator to act as an electro-catalyst role to improve the conversion reversibility and kinetics in lithium sulfur battery with high-energy.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Xiangyue Liao,Shuhan Yi,Min Xie,Xiaoying Li,Binghao Lin,Yufan Chen,Yangjie Li,Xuemei He,Qiaoji Zheng,Kwok-Ho Lam,Dunmin Lin
Na3V2(PO4)3 (NVP) is regarded as a promising cathode for sodium-ion batteries (SIBs) owing to its high operating voltage and robust NASICON-type framework. However, its practical application is hindered by poor rate capability and limited long-term cycling stability. In this work, a high-entropy substituted cathode, Na3V1.75(Ca, Zr, Al, Mn, Mg)0.25(PO4)3 (denoted as HE-NVP), is successfully synthesized via a conventional solid-state method. The introduction of multiple aliovalent cations leads to local structural regulation, where elongation of Na(1)–O bonds and contraction of Na(2)–O bonds enhance structural stability and facilitate fast Na+ migration. Simultaneously, the V4+/V5+ redox couple is activated at ∼4.0 V, significantly boosting energy density and cycling stability. High-entropy substitution also promotes pseudocapacitive behavior through the modulation of the local chemical environment and vanadium redox chemistry. As a result, HE-NVP delivers excellent rate performance with a high specific capacity of 93.2 mAh g–1 at 50 C and outstanding long-term durability, retaining 81.8% of its initial capacity after 2,000 cycles at 20 C. Even under harsh conditions of 50 C, it maintains 78% capacity retention after 4,000 cycles, with an ultralow capacity decay rate of 0.006% per cycle after 6,000 cycles. Ex-situ XRD analysis confirms a single-phase solid-solution reaction mechanism with a minimal volume change of only 1.5% during Na+ insertion/extraction. This study highlights a practical and effective strategy for designing high-performance SIB cathodes through rational high-entropy engineering of the crystallographic structure and redox chemistry.
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高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2021
·
IF 3.171
Guijia Cui,Hong Wang,Fengping Yu,Haiying Che,Xiaozhen Liao,Linsen Li,Weimin Yang,Zifeng Ma
NASICON-type Na 3 V 2 (PO 4 ) 3 is a promising electrode material for developing advanced sodium-ion batteries. Preparing Na 3 V 2 (PO 4 ) 3 with good performance by a cost-effective and large-scale method is significant for industrial applications. In this work, a porous Na 3 V 2 (PO 4 ) 3 /C cathode material with excellent electrochemical performance is successfully prepared by an agar-gel combined with freeze-drying method. The Na 3 V 2 (PO 4 ) 3 /C cathode displayed specific capacities of 113.4 mAh·g −1 , 107.0 mAh·g −1 and 87.1 mAh·g −1 at 0.1 C, 1 C and 10 C, respectively. For the first time, the 500-mAh soft-packed symmetrical sodium-ion batteries based on Na 3 V 2 (PO 4 ) 3 /C electrodes are successfully fabricated. The 500-mAh symmetrical batteries exhibit outstanding low temperature performance with a capacity retention of 83% at 0 °C owing to the rapid sodium ion migration ability and structural stability of Na 3 V 2 (PO 4 ) 3 /C. Moreover, the thermal runaway features are revealed by accelerating rate calorimetry (ARC) test for the first time. Thermal stability and safety of the symmetrical batteries are demonstrated to be better than lithium-ion batteries and some reported sodium-ion batteries. Our work makes it clear that the soft-packed symmetrical sodium ion batteries based on Na 3 V 2 (PO 4 ) 3 /C have a prospect of practical application in high safety requirement fields.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2022
·
IF 4.889
Nan Jiang,Long Chen,Yitao Wang,Hao Jiang,Yanjie Hu,Chunzhong Li
Sodium-ion batteries have been extensively studied due to their high safety and high natural abundance characteristics. Na 3 V 2 (PO 4 ) 3 (NVP) cathode materials, which have extraordinary rate performance and cycle stability, have become among the most promising cathode materials for commercialization. However, due to their low conductivity problem, it is still a serious challenge to develop a nanocrystalline and uniform conductive frame structure. This work reports a confinement reaction strategy derived from the chelation reaction, which can successfully realize electrode materials with adjustable internal NVP grains. The obtained ultrasmall grained carbon frame material showed to have ultrahigh rate performance, and it could reach 101 mAh g −1 at 100C and 100 mA h g −1 after 1800 cycles at 10C rate (capacity retention rate 99%). Moreover, it showed the characteristics of excellent low-temperature performance, and no capacity degradation at − 20 °C after 1000 cycles.
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高影响因子
IONICS
·
2022
·Vol. 28
·期 10
·4631-4639
·
IF 2.961
Huang Hong-bo,Liu Cai-ling,Yang Yue,Luo Shao-hua
Na 3 V 2 (PO 4 ) 3 with NASICON structure is regarded as a hopeful cathode in sodium-ion batteries (NIBs). Nevertheless, the immanently inferior electronic conductivity significantly restricts its electrochemical performance and practical application. In this work, a facile solid-state sintering approach employing citric acid as both the reduction agent and carbon source has been developed to prepared Na 3 V 2 (PO 4 ) 3 /C composite. The influence of different sintering temperatures on the structure, morphology, and electrochemical performance of Na 3 V 2 (PO 4 ) 3 /C for NIBs was systematically investigated. The results indicate that the Na 3 V 2 (PO 4 ) 3 /C sample calcined at 850 °C (NVP/C-850) presents the best electrochemical property among the as-obtained four NVP/C samples studied. The optimized NVP/C-850 composite exhibits a reversible capacity of 117.4 mAh/g at 0.2 C, and after 100 cycles, capacity retention of 94.7% was kept. Besides, among the four electrodes, NVP/C-850 electrode exhibited smallest resistance and highest Na + diffusion coefficient. Thus, the outstanding results demonstrate potential application of the NVP/C for NIBs.
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高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Mengyue Liu,Kexin Wan,Xinmiao Zhang,Mingkun Wang,Dawei Yang,Jishi Wei,Kun Chang,Hongwei Tang
NASICON-type cathodes as promising candidates have attracted more and more attention, and Na 3 V 2 (PO 4 ) 3 is one of the outstanding representatives. In particular, it can tolerate complex interface reaction processes during the Zn 2+ insertion/desertion in the aqueous environment. However, existing three-dimensional channels in the intrinsic Na 3 V 2 (PO 4 ) 3 always hardly play to their advantages as narrow pathways and some other defects. This work has considered both the conductivity and capacity of this vanadium-based NASICON cathode at the same time, where a sodium-rich cathode material Na 3.2 V 1.8 Mn 0.15 Mg 0.05 (PO 4 ) 3 (NVMMP) with Mn 2+ and Mg 2+ dual-substituents has been designed considering the low cost and environmentally friendly characteristics. The synergistic effects introduced by Mn 2+ and Mg 2+ substitution led to a significant increase in the capacity and cycle life of the optimized NVMMP cathode material (with a capacity retention rate of 90.6 % after 2500 cycles at 2 A g −1 ). Furthermore, the reversible storage mechanism of Zn 2+ in NVMMP cathode materials and the theoretical study of such synergistic substitution on intrinsic electronic conductivity have been revealed by different in/ex-situ characterization techniques and theoretical calculations, where redox processes generated by Mn 3+ /Mn 4+ , enhanced ionic/electron pathway, and the pinning effect caused by injecting inert MgO 6 octahedra into the NASICON framework are key points to high capacity and long-life span.
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高影响因子
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