ELECTROCHEMISTRY COMMUNICATIONS
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2022
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IF 5.443
Hao Li,Liang Xue,Mingzhu Ni,Serguei V. Savilov,Sergey M. Aldoshin,Hui Xia
Spinel LiMn 2 O 4 (LMO) is a promising cathode material for lithium-ion batteries (LIBs) due to its low cost, high safety, and high energy density. However, surface dissolution of manganese and irreversible phase transitions reduce its long-term cycling performance. Although surface coating is a promising strategy for improving the structural stability of LMO, the commonly used coating process is tedious and complicated. In this work, a one-step sintering process is developed to prepare LMO materials coated in situ with MnBO 3 . It is found that the MnBO 3 layer formed in this way is uniformly coated on the surface of LMO, and effectively suppresses Mn dissolution and undesirable phase transition during repeated charge/discharge cycles. Furthermore, the MnBO 3 -coated LMO has improved electrode kinetics, demonstrating significantly improved rate performance compared to the pristine LMO. As a result, the optimized LMO sample exhibits 85.2% capacity retention after 1000 cycles at 1 C and still can deliver 96 mAh g −1 , even at 5 C. This work proposes a facile and efficient coating strategy for improving the electrochemical performance of LMO as a cathode material for LIBs.
研究领域:
材料科学
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电化学
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能源存储
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DOI
高影响因子
DESALINATION
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2026
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IF 9.9
Di Wang,Qingbai Chen,Bingbing He,Yong Xu,Haoran Zhang,Ping Li,Jianyou Wang
The continuous influx of waste batteries poses severe challenges to energy, economy, and the environment, particularly in major economies with high lithium-ion battery (LIB) usage. Selectrodialysis (SED) is considered for lithium recovery from spent LIB leachate via monovalent ion selectivity, but proton hopping through monovalent-selective cation exchange membranes in acidic media limits its selectivity and stability. This report describes a diffusion dialysis (DD)/SED integrated recycling system capable of acid recovery and subsequent lithium extraction. The efficient SED unit exhibits high lithium selectivity during spent LIB leachate reclamation, benefiting from the removal of acid (H + ) from the feed stream via DD process. Appropriate running mode conditions contribute to excellent mass transfer for each unit. Specifically, DD operates in counter-flow mode with waste acid flowing from bottom-to-top, leading to >95% acid recovery. This performance is attributed to the uniform concentration distribution and adequate acid filtration. Meanwhile, SED under constant voltage mode reaching 7.9 (7.8) selectivity for Li/Ni (Li/Co) owing to its high Li electromigration rate constants (0.0273 ± 0.0003 min −1 ) under changing current drop. Furthermore, the integrated DD/SED process recovers 92.3%-pure Li₂SO₄ from spent LIB leachate with reduced chemical input, achieving a gross profit of 42.22 USD/t while demonstrating enhanced sustainability and industrial potential.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2019
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IF 8.355
Yue Tian,Xiaoyan Liu,Xiaoqing Cao,Dieqing Zhang,Shuning Xiao,Xinru Li,Zaiyuan Le,Xianyang Li,Hexing Li
1T MoS 2 has recently attracted growing interests for energy storage due to the excellent conductivity, expanded layer space and extra exposed active sites. However, its application is still limited due to the complicated synthesis under harsh condition and poor structural stability. Herein, we report a novel MoS 2 /Cu nanowires (NWs) by microwave-assisted self-assembly of ultrathin 1T MoS 2 onto Cu NWs with interconnected conductive network and robust one-dimensional (1D) structure. As anode material for LIBs, 1T MoS 2 /Cu NWs exhibits high capacity and stability owning to the enhanced electron transport and lithium ions intercalation. Meanwhile, the enriched nanovoids supply extended space for buffering the volume change and boosting electrolyte penetration during cycling process. Moreover, Cu doped MoS 2 could also stabilize the 1T phase, leading to the excellent anode durability. It delivers a high reversible capacity of 570.6 mAh g −1 after 250 cycles at a current density of 0.5 A g −1 . Enhanced rate performance is also achieved with excellent capacity retention of 914.6 mAh g −1 at 0.1 A g −1 and 465.2 mAh g −1 at 2 A g −1 , respectively.
研究领域:
材料科学
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电化学
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纳米技术
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能源存储
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
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IF 6.371
Lirong He,Peng Zhou,Liping Wang,Mingyu Zhang,Qizhong Huang,Zhean Su,Xiaodong Wang,Ping Xu,Weijie Song,Renhao Zou
Improving the performance of anode materials is of great importance for lithium-ion batteries (LIBs). Transition metal selenides compositing carbon and germanium (Ge) have attracted extensive attention. In this work, an anode material that integrates Ge and α-MnSe in carbon nanofibers (CNFs) was first synthesized by heat treatment after electrospinning. The coupling of Ge with α-MnSe and carbon can cause the growth process of α-MnSe to occur inside the CNFs, which can buffer the volume change, refine the grains and avoid particles protruding from the surface of CNFs. In addition, the interconnected conductive network of Ge/α-MnSe@CNFs can provide fast diffusion channels for Li ions and improve the electrical conductivity . Importantly, there is a synergistic effect of Ge, α-MnSe, and CNFs on the anode material for LIBs. As expected, Ge/α-MnSe@CNFs exhibited an excellent performance with a capacity of 1514.7 mAh g −1 after 200 cycles at 0.1 A g −1 and 1030 mAh g −1 after 1000 cycles even at 1 A g −1 . Therefore, this new preparation strategy of Ge/α-MnSe@CNFs offers novel ideas to develop high-performance and long-life LIBs.
研究领域:
材料科学
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电化学
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纳米技术
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能源存储
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DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
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2019
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IF 9.518
Jing Wu,Yong Liu,Youwei Cui,Xiaohui Zhao,Daming Dong
Incorporation of new readout methods with established analytical devices allows methodological innovations in analytical sciences. Herein, we present a new sensing platform by combining an ultrasensitive element analyzer, namely the laser-induced breakdown spectroscopy (LIBS) and a lateral flow strip (LFS). Ag x Au y bimetallic nanoparticles (Ag x Au y BNPs) are selected as the labels to deliver the optimal quantitative performance by analyzing the Ag (I) signal from the test (T) line of LFS. For prototypical application in pathogen detection , the LIBS-LFS sensor can achieve a detection limit of 1.6 cfu mL −1 of Staphylococcus aureus ( S. aureus ) within 10 min, which is superior to conventional methods. Importantly, the signals of Ag x Au y BNPs for visual and LIBS analysis are stable and still readable after the detection is finished and the test strip is stored for up to 13 days, suggesting a potential for long-term data preservation. This combination of LIBS with LFS provides a new concept toward integrated nano/analytical devices that can benefit various application scenarios.
研究领域:
分析化学
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生物传感器
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纳米技术
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病原体检测
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产品关联
DOI
PubMed
高影响因子
Batteries-Basel
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2023
·Vol. 9
·期 9
·471
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IF 4
Shujian Zhang,Hongmo Zhu,Lanfang Que,Xuning Leng,Lei Zhao,Zhenbo Wang
To optimize the preparation process of polymer electrolytes by in situ UV curing and improve the performance of polymer electrolytes, we investigated the effect of carrier film phase conversion time on the properties of polymer electrolyte properties in all-solid-state LIBs. We compared several carrier films with phase conversion times of 24 h, 32 h, 40 h, and 48 h. Then, the physical properties of the polymer electrolytes were characterized and the properties of the polymer electrolytes were further explored. It was concluded that the carrier membrane with a phase transition time of 40 h and the prepared electrolyte had the best performance. The ionic conductivity of the sample was 1.02 × 10−3S/cm at 25 °C and 3.42 × 10−3S/cm at 60 °C. At its best cycle performance, it had the highest discharge-specific capacity of 155.6 mAh/g, and after 70 cycles, the discharge-specific capacity was 152.4 mAh/g, with a capacity retention rate of 98% and a discharge efficiency close to 100%. At the same time, the thermogravimetric curves showed that the samples prepared by this process had good thermal stability which can meet the various requirements of lithium-ion batteries.Keywords:phase conversion time;UV curing;solid polymer electrolyte;porous carrier membrane;lithium-ion battery
研究领域:
材料科学
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电化学
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能源存储
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DOI
高影响因子
ANALYST
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2019
·Vol. 144
·期 13
·4093-4099
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IF 4.019
Guangxia Feng,Tian Guan,Qinghua He,Bangrong Lu,Xuejing Chen,Bei Wang,Xuesi Zhou,Jiangfeng Ding,Yonghong He
Ion-chelated microbeads (ICMs) for suspension arrays can be prepared by chelating metal ions (MIs), which are used as encoding materials. Stimulating the ICMs, laser induced breakdown spectra (LIBs) can be obtained and the atomic spectra of the chelated ions are chosen as the decoding signals. Our ICMs show digital characteristics with high stability due to the properties of LIBs. And, since there are many available coding materials and different kinds of coding materials can be easily combined, the coding capacity can be considerably enlarged. Further, the background interference in fluoroimmunoassay detection could be avoided, because the ICMs contain no fluorescence emission. In our studies, we achieved a total of 15 types of barcodes by taking full advantage of 4 kinds of ions, then a fluoroimmunoassay was performed to demonstrate the specificity and detection performance of our ICMs in multiplexing and the detection limit could reach 1.49 × 10−10 M, showing promising potential in applications.
研究领域:
分析化学
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生物传感
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材料科学
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免疫学
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产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
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2020
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IF 6.215
Shuai Liu,Ke Zhang,Lu Tan,Shaopeng Qi,Guoning Liu,Jinxi Chen,Yongbing Lou
All-inorganic halide perovskites have recently made remarkable achievements in the field of photo-electrochemistry, but rarely been applied in energy storage devices, especially, in lithium-ion batteries (LIBs). In this article, the specific composite composed of carbon nanotubes (CNTs) tightly wrapped perovskite-CsPbBr 3 (CsPbBr 3 @CNTs) was synthesized by a simplified co-precipitation method. Attributed to the specific morphology, the CsPbBr 3 @CNTs composite supplied short pathways for the transport of both electrons and lithium ions, along with the interface for pseudocapacitive behavior. The synergistic effects of CsPbBr 3 and CNTs enhanced the pseudocapacitive effect, thus, CsPbBr 3 @CNTs exhibited high cycling stability and rate capability. The prominent lithium storage capabilities were exhibited then, with first reversible capacity of 644.6 mA h g −1 /100 mA g −1 and maintained at 470.2 mA h g −1 after 200 cycles. Moreover, under the large current density of 600 mA g −1 , it kept a stable capacity of 203.8 mA h g −1 . This study, for the very first time, proved the great application potential of all-inorganic perovskite composite materials with surface dominating pseudocapacitive contribution in LIBs.
研究领域:
材料科学
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能源存储
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电化学
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DOI
高影响因子
Journal of Energy Storage
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2024
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IF 8.9
Wei-Xiang Cheng,Ting-Ting Mao,Yi-Zhao Chen,Shuai-Fu Cui,Jing Chen,Dao-Ren Deng,Ru-Ming Feng,Song-Yi Liao,Yong-Gang Min
In this paper, cubic ZnSn(OH) 6 with MXene were firstly in-situ synthesized, and subsequently vulcanized and etched to obtain hollow SnS nanoboxes with MXene coating by carbon layer (referred to as H-SnS/MXene@C). The composition and surface chemical state of H-SnS/MXene@C were characterized by XRD and XPS , respectively. The microscopic morphology of H-SnS/MXene@C was analyzed and characterized in detail by SEM and TEM, and the results show that the hollow SnS nano-boxes formed an effective connection with the MXene nanosheets . When used as LIBs anode, the H-SnS/MXene@C maintained ∼707 mAh/g after 200 cycles at 0.5 A/g current density. As a NIBs anode material, the H-SnS/MXene@C delivered ∼402 mAh/g after 150 cycles at 0.5 A/g current density. In addition, a detail simulation/calculation revealed that H-SnS/MXene@C demonstrated a higher pseudocapacitance (83.2 % for LIBs and 74.4 % for NIBs at a scan rate of 2 mV/s, respectively). The synergistic effect of the highly conductive MXene and the three-dimensional hollow cubic structure could effectively provide an efficient channel for charge transfer and ionic diffusion in H-SnS/MXene@C anode.
研究领域:
材料科学
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电化学
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能源存储
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
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2022
·Vol. 46
·期 45
·21640-21647
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IF 3.925
Shujian Zhang,Yang Lu,Kewu He,Lanfang Que,Lei Zhao,Zhenbo Wang
In order to overcome the tradeoff between the mechanical and electrochemical properties of polymer electrolytes, a novel semi-interpenetrating network structure is proposed. It can effectively solve the problems of low conductivity, poor interface stability, and weak mechanical strength of polymer electrolytes. Specifically, we use a plastic crystal composite polyacrylate polymer electrolyte doped with PVDF-HFP and after in situ UV curing, the polymer matrix with a semi-interpenetrating structure is formed by linear PVDF-HFP and cross-linked polyacrylate network structure (S-PCCE). A significant feature of the semi-interpenetrating network structure is the fine integration of the cross-linked polymer network and the linear polymer, resulting in synergistic effects that can improve the flexibility, mechanical strength, and ionic conductivity of the plastic-crystal composite polymer electrolyte. The ionic conductivity can reach 1.45 × 10−3 S cm−1 at room temperature and 4.8 × 10−3 S cm−1 at 60 °C, which is conducive to high battery performance. The LiFePO4/S-PCCE/Li battery has an initial discharge specific capacity of 156 mA h g−1 and a maximum discharge specific capacity of 163 mA h g−1 at 0.2C. After 50 cycles, the battery can still maintain a high discharge specific capacity of 155 mA h g−1 and a Coulomb efficiency of 99.4%. At the same time, the thermogravimetric curve shows that the electrolyte has good adaptability to high temperatures. Therefore, polymer electrolytes with a semi-interpenetrating network structure have good application prospects.
研究领域:
材料科学
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能源存储技术
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DOI
高影响因子
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
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2026
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IF 3.1
Peng Zhu,Miaomiao Wang,Dongdong Li,Chang Liu,Zhengbo Qin,Zefeng Hua,Zhong-Fa Sun,Xinyan Yang,Xianfeng Zheng
Plasma amplification laser-induced breakdown spectroscopy (Plasma amplification LIBS) has shown great potential in N elements in water due to high sensitivity, precision, and accuracy. To further reduce interferes of the atmospheric nitrogen, the effect of laser wavelength on the quantitative determination of nitrogen in water was investigated. With short laser wavelength, stronger spectral line intensity, lower interference from atmospheric nitrogen, and superior analytical performance were obtained. The linear coefficient of determination (R²) of the calibration curve improved from 0.2147 to 0.9732, the limit of detection (LOD) was reduced from 18.98 ppm to 3.41 ppm, and the spectral stability, expressed as average relative standard deviation (RSDAV), was reduced from 10.49% to 5.45%. Moreover, the average relative error (REAV) and the root mean square error of cross-validation (RMSECV) for the predicted concentrations were improved by approximately 56.82% and 71.79%, respectively. These results demonstrate that the 532 nm wavelength in plasma amplification LIBS can significantly enhance both the detection sensitivity and the accuracy of quantitative analysis for nitrogen in water.
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DOI
高影响因子
Journal of Environmental Sciences
·
2026
·
IF 6.5
Abulimiti Yasen,Haitao Sun,Dilihumaer Aizezi,Zhongxin Zhang,Reyihan Tudi,Xintian Song,Mei Xiang,Bumaliya Abulimiti
Proposes an end-to-end LIBS framework eliminating manual delay time selection. • Introduces a Physics-Inspired Multi-Scale Spatio-Temporal Network (MS-STN). • Develops ACSNOA algorithm balancing global exploration and local exploitation. • Achieves 43.4 % MAE improvement (2.566 µg/g) for 10 µg/g Cr extrapolation. The rapid detection of heavy metal contamination is crucial for environmental and public health. Laser-induced breakdown spectroscopy (LIBS) has great potential for in situ analysis, but its quantitative accuracy is limited by empirical delay-time selection and insufficient precision at trace levels. This study proposes an end-to-end intelligent framework to overcome these limitations. We introduce a physics-inspired multi-scale spatio-temporal network (MS-STN), which shifts multi-scale analysis from the spectral to the temporal dimension of plasma evolution. This allows automatic feature extraction from full time-series spectra, eliminating tedious pre-selection of a single delay time based on metrics like signal-to-noise or signal-to-background ratios. An adaptive chaotic simulated newtonian optimization algorithm (ACSNOA) is also proposed for stable hyperparameter tuning. Experiments on chromium (Cr)-spiked licorice samples show that MS-STN achieves a mean absolute error of 2.566 µg/g and a prediction root mean square error of 2.889 µg/g for 10 µg/g Cr extrapolation, significantly outperforming benchmark models. Ablation studies validate each core component, and ACSNOA shows superior optimization stability. This work provides a high-precision, automated, and physics-informed paradigm for LIBS-based heavy metal analysis, advancing its real-time, on-site monitoring applications. Download: Download high-res image (335KB) Download: Download full-size image
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高影响因子
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