MACROMOLECULAR RAPID COMMUNICATIONS
·
2025
·
IF 4.3
Bo Peng,Shuai Gu,Hongwei Lu,Juntao Tang,Chunyue Pan,Guipeng Yu
Developing high-efficiency antifouling nanofiltration (NF) membranes is crucial to address the dual challenges of low separation selectivity and severe membrane fouling in lithium extraction from high Mg 2+ /Li + ratio salt-lake brines. This study presents an efficient strategy based on one-step dip-coating surface modification. By grafting 1, 2-epoxy-3,3,3-trifluoropropane (TFO) molecules onto a PEI-TMC polyamide (PA) base membrane, a unique bipolar electrostatic potential reconstruction was triggered, simultaneously and significantly enhancing both the separation selectivity and antifouling performance of the membrane. In simulated high Mg 2+ /Li + ratio brine (2000 ppm, Mg 2+ /Li + = 30:1), the PA-TFO 0.75 membrane demonstrated exceptional integrated performance by achieving a high Li + /Mg 2+ selectivity of 20.5 (9.76 times higher than commercial NF membranes) while maintaining a high water permeance of 14.65 L m −2 h −2 bar −1 , and exhibiting an outstanding flux recovery ratio (FRR) approaching 100.6% (a 151% improvement over the pristine membrane), thereby meeting industrial fouling resistance standards. Critically, this strategy enabled the continuous fabrication of large-area membranes (60 m × 0.298 m). The assembled spiral-wound module (1812-type) retained a Li + /Mg 2+ selectivity of 19.5 in the same simulated brine, providing an efficient, antifouling, and scalable industrial-scale solution for lithium extraction from high Mg 2+ /Li + ratio salt lakes.
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DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Tie Liu
The geometric design of atomically dispersed 'framework-active sites' grafted with carbonaceous materials to establish a well-connected three-dimensional network represents a compelling strategy for enhancing the performance of lithium-oxygen batteries, particularly in terms of cyclability. This paper introduces a simple approach that utilizes self-assembly heterogeneous nucleation to fabricate discrete bimetallic (Co, Ni) micron lattices grafted onto CNTs, exhibiting commendable surface properties. This intriguing hierarchical structure optimally harnesses the profound structural effects of CNTs weaving matrix, thereby imparting essential properties to the cathode, including high catalytic activity, intrinsically accessible active sites, and continuous porosity to accommodate discharge products. And such binary metal-nitride grafted configuration is significant in mitigating the embarrassing presence of nitrides (low conductivity) and carbon material (inferior activity). Consequently, cell measurement results indicate that a comparable capacity of 8599.7 mA h g⁻¹ and cyclic performance exceeding 200 cycles are achieved in a semi-solid state battery, outperforming commercially available RuC catalysts. And the DFT calculations further demonstrate the strong electronic coupling transfer and exceptional bifunctional activity observed in this binary metal-nitride sample. Therefore, this work exemplifies both steerable preparation techniques and the considerable potential inherent in geometric design for bimetallic sites grafted with carbonaceous material-based catalysts as they transition from Li-O 2 to Li-air batteries.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Chenyu Zhao,Runze Fan,Balaji Murugesan,Yan Xu,Jiahui Ma,Juming Yao,Izabella Krucinska,Yurong Cai,Junkuo Gao
Biomass-derived carbon is considered a promising alternative to commercial graphite anode because of its renewability and tunable physical/chemical properties. However, the specific capacity and rate capability of biochar anode materials must be further enhanced to satisfy the increasing energy demand. Here, we report a facile strategy to synthesize uniform Fe 3 C inserted sericin-derived porous carbon (Fe 3 C/SC) via coordination with Fe 3+ ions to the carboxylate radicals of sericin protein. The obtained composite retains a hierarchical pore structure with an interconnected carbon scaffold. In particular, the embedded Fe 3 C nanoparticles (NPs) in the carbon matrix will serve as a catalyst for the modification of the solid electrolyte interphase (SEI) layer during the cycles, which effectively enhance reversible capacity. The resulting anode provides high reversible capacity (584.0 mAh g −1 at 0.1 A g −1 after 150 cycles), superior rate capability (259.0 mAh g −1 at 2 A g −1 ) and remarkable cycling stability under high current density (219.7 mAh g −1 retention at 2 A g −1 after 600 cycles). This composite is expected to be one of the most potential anode materials for lithium-ion batteries, owning to its cost-effective, facile synthesis and efficient performance with excellent electrochemical properties .
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Rundi Xiong,Lixia Yuan,Ruifeng Song,Shuaipeng Hao,Haijin Ji,Zexiao Cheng,Yi Zhang,Bowen Jiang,Yudi Shao,Zhen Li,Yunhui Huang
Superionic halides have attracted widespread attention as solid electrolytes due to their excellent ionic conductivity, soft texture, and stability toward high-voltage electrode materials. Among them, Li3InCl6 has aroused interest since it can be easily synthesized in water or ethanol. However, investigations into the influence of solvents on both the crystal structure and properties remain unexplored. In this work, Li3InCl6 is synthesized by three different solvents: water, ethanol, and water–ethanol mixture, and the difference in properties has been studied. The results show that the product obtained by the ethanol solvent demonstrates the largest unit cell parameters with more vacancies, which tend to crystallize on the (131) plane and provide the 3D isotropic network migration for lithium-ions. Thus, it exhibits the highest ionic conductivity (1.06 mS cm–1) at room temperature and the lowest binding energy (0.272 eV). The assembled all-solid-state lithium metal batteries (ASSLMBs) employing Li3InCl6 electrolytes demonstrate a high initial discharge capacity of 153.9 mA h g–1 at 0.1 C (1 C = 170 mA h g–1) and the reversible capacity retention rate can reach 82.83% after 50 cycles. This work studies the difference in ionic conductivity between Li3InCl6 electrolytes synthesized by different solvents, which can provide a reference for the future synthesis of halide electrolytes and enable their practical application in halide-based ASSLMBs with a high energy density.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2024
·Vol. 59
·期 44
·20671-20685
·
IF 3.5
Wang Jiashuai,Wang Chengdeng,Shi Haofeng,Wang Zhaokun,Wang Zhi,Li Jin peng,Chen Xiangrui,Gao Yan,Bai Zhiming,Yan Xiaoqin
The interface instability between a Li-excess cation disordered rocksalt cathode (DRX) and sulfide solid electrolyte (SE) results in rapid capacity fade. It is well established that cathode coatings are important to mitigate the side reaction at interfaces and therefore increasing the reversible specific capacity of all-solid-state Li batteries (ASSLBs). However, internal mechanism remains blurry, and the effects of the coating layer on electrode/electrolyte interface and capacity degradation have not been fully clarified. In this work, we used various coating materials on Li 1.2 Ni 0.3 Ti 0.3 Nb 0.2 O 2 (LNTNO) cathodes to investigate the behavior of the DRX/SE interfaces. The electrochemical performances are compared of uncoated, Li 2 ZrO 3 -coated, LiNbO 3 -coated, and Li 3 BO 3 (LBO)-coated cathodes in Li 6 PS 5 Cl-based ASSLBs in long charge–discharge processes. The results demonstrate that all coated LNTNO could improve specific capacity and cycle performance. Li 3 BO 3 is identified as a superior coating with good structural stability that exhibits observably large discharge capacity (206 mAh g −1 at 10 mA g −1 ), long cycle life (100 cycles, capacity retention of 78%), as well as outstanding rate property. Combined with ex situ X-ray photoelectron spectroscopy and scanning electron microscope, we can observe the side reactions at cathode/electrolyte interface can be mitigated after the LBO coating layer, enabling fast lithium transport dynamics. This work highlights the critical role of having an appropriate coating layer and offers a promising path to enhance the electrochemical behaviors of ASSLBs. Graphical abstract
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DOI
高影响因子
ACS Applied Energy Materials
·
2024
·
IF 5.4
Ruliang Liu,Shimei Song,Jiaqi Xue,Huiping Deng,Suixiang Li,Qingwei Cheng
Lithium metal anodes are promising candidates for next-generation high-energy density batteries. Unstable lithium–electrolyte interfaces caused by uncontrolled dendrite growth and side reactions still hinder its practical process. In this work, an all-organic solid electrolyte interphase (SEI) film coupling hardness with softness has been prepared to achieve a dendrite-free lithium metal anode by designing polymer brushes rationally (poly(diethylene glycol methyl ether methacrylate) (PEGM) and poly(2,2,2-trifluoroethyl acrylate) (PTFEA) from bacterial cellulose (BC), denoted as BC-g-P(EGM-co-TFEA)). The rigid BC skeleton can significantly enhance the mechanical strength to depress Li dendrite growth. Furthermore, flexible P(EGM-co-TFEA) side chains are able to homogenize lithium-ion flux, inducing the generation of LiF, boost ion conductivity, and maintain good electrode interface contact. As a result, Li/Li symmetric cells with a BC-g-P(EGM-co-TFEA)-protective film enable long-term (1500 h) reversible lithium plating/stripping at a high current density of 10 mA cm–2, while the Li@BC-g-P(EGM-co-TFEA)/LiFePO4 cell maintains a small capacity decay per cycle of 4% during 500 cycles at 3 C. This work could provide an innovative strategy to develop superior artificial SEI films for inhibiting Li dendrite growth on the Li metal anode.
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DOI
高影响因子
JAPANESE JOURNAL OF APPLIED PHYSICS
·
2022
·Vol. 61
·期 6
·062002
·
IF 1.491
Lei Wang,Subiyinuer Jilili,Ayinuremu Tuerxun,Aierken Sidike,Qingling Wang
A series of Tb3+, Eu3+, Li+ co-doped SrSiO3 phosphors were prepared using the high-temperature solid-phase method. The X-ray diffraction results showed that Tb3+ and Eu3+ successfully entered into the SrSiO3 matrix lattice. Strong energy transfer from Tb3+ to Eu3+ is exhibited with a calculated energy transfer efficiency of 94.7%. Doping of the charge compensator Li+ increased the luminescence intensity of the SrSiO3:6%Tb3+, 6%Eu3+, 3%Li+ phosphor at a wavelength of 614 nm by 4.2 times and significantly improved the color purity of this phosphor (Cp = 85.9%). Based on color coordinate analysis, the phosphor color coordinates are located near (0.615, 0.365), which belongs to the red region. The phosphor was integrated into a white LED. The resultant package exhibited a color temperature of 6479 K and a color rendering index of 93.8. Its luminous performance was also very stable under different drive currents.
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DOI
高影响因子
ACS Applied Energy Materials
·
2021
·
IF 6.024
Jun Ban,Xingxing Jiao,Yangyang Feng,Jing Xue,Cheng He,Jiangxuan Song
Lithium/fluorinated carbon (Li/CFx) batteries have received widespread attention due to their high specific energy density. However, the development of Li/CFx primary batteries is seriously hampered owing to the low electrical conductivity and poor wettability against the fluorinated carbon electrolyte. Here, we report a CFx-compatible fluorinated ether-containing electrolyte for all-temperature high-energy-density Li/CFx primary batteries. Specifically, a CFx-philic 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (TTE) is introduced to the carbonate-based electrolyte as a cosolvent. Benefiting from the low viscosity and low freezing point of TTE, the conductivity and wettability are drastically improved, contributing to a lowered charge-transfer resistance. Thus, the modified electrolyte with TTE endows Li/CFx batteries with high energy density of 850 Wh kg–1 at 25 °C and 745 Wh kg–1 at 55 °C under the current density of 5000 mA g–1, accompanied by high power density of 9931 and 10046 W kg–1, respectively. Even at the freezing temperature of −50 °C, Li/CFx batteries can still exhibit a high middle value of voltage of 1.91 V, and the discharge capacity is 299 mAh g–1 at 100 mA g–1. The improvement of electrochemical performance over a wide temperature range from −50 to 55 °C has greatly expanded the application of Li/CFx batteries.
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DOI
高影响因子
ENERGY & FUELS
·
2024
·
IF 5.2
Yuanyuan Ren,Xingguang Lu,Yuanbo Han,De Li,Yong Chen
Spinel Li4Ti5O12 is a well-known two-phase anode material, which can deliver a large specific capacity over a wide voltage window, and the kinetics of the two-phase boundary is very important to the electrochemical properties. In this work, a dense Li4Ti5O12 single-particle microelectrode is prepared by the transient electric-arc heating, and its electrochemical properties are measured over a wide voltage window in Li-ion batteries, which delivers an ultralow-potential discharge plateau. According to electrochemical, in situ electrochemical impedance spectroscopy, Raman, and optical results, an unsymmetrical core–shell model is proposed as discharging through the α/γ two-phase transition and charging through the α/β two-phase transition, in which the Li-ion insertion into the two-phase interface is switched off for the β phase at a low potential and switched on for the γ phase at an ultralow potential. Therefore, this study provides new insights into the electrochemical behaviors of spinel Li4Ti5O12 and sheds light on some other two-phase materials, such as olivine LiFePO4 and spinel LiCrTiO4.
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DOI
高影响因子
CHINESE CHEMICAL LETTERS
·
2019
·
IF 3.839
Jinfeng Sun,Lingzhi Guo,Miaomiao Gao,Xuan Sun,Jinyang Zhang,Longwei Liang,Yang Liu,Linrui Hou,Changzhou Yuan
Herein, we first report one-step synthesis of uniform Mo 2 C microflowers (MCMFs) from low-cost precursors via industrialized solid-state strategy. With fine optimization in precursor ratio and pyrolysis temperatures, the as-fabricated MCMFs are assembled well with interconnected single-crystalline nanosheet subunits. More encouragingly, the resultant MCMFs are further highlighted as a competitive anode with robust and long-duration lithium-storage behaviors towards high-performance Li-ion batteries
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Yi Yang,Ling Gao,Liming Shen,Ningzhong Bao
With the revival of lithium metal anodes , there is an urgent need for matching cathodes to form the next generation batteries with high-capacity and low-cost. A porous hierarchical structure containing FeF 3 nanocrystals (3–9 nm) capsulated in conductive carbon nanocages (40–110 nm) was fabricated. The morphology and size of the FeF 3 nanocrystals were influenced by the existence of carbon nanocage. During the preparation process, the carbon nanocage inhibited the growth of FeF 3 crystals. During the dis/charge process, the carbon nanocages not only restricted the complex conversion reaction (Fe 3+ ⇄ Fe 2+ ⇄ Fe) within the confined space, but also functioned as a bridge for the transmission of electrons, thus enhancing the electrochemical performance of the electrode. As a result, the FeF 3 /C electrode delivered an excellent reversible capacity of 410 mA h g −1 over 120 cycles at 100 mA g −1 .
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Dabing Li,Liuyang Cao,Chaodeng Liu,Guoqin Cao,Junhua Hu,Jingbo Chen,Guosheng Shao
The composite polymer electrolytes , consisting of a flexible matrix and superb fast ion conductor are promising for large-scale practical application in safer lithium metal batteries . The quantification of polymer structure evolution induced by the inorganic filler was rarely reported. Here, a designer cubic argyrodite Li 6 PS 5 X sulfide electrolyte was fabricated by a solid reaction. A stoichiometry deviation by increasing S and Li, reducing Cl contents, leads to a novel electrolyte of Li 6.25 PS 5.25 Cl 0.75 with high conductivity of 1.0 mS cm −1 and low activation energy of 0.14 eV at room temperature . The off-stoichiometry Li 6 PS 5 X sulfide electrolyte Li 6.25 PS 5.25 Cl 0.75 was used as active filler for polyethylene oxide . Small angle X-ray scattering experiment indicates that the Li 6.25 PS 5.25 Cl 0.75 triggers a pronounced structure evolution in the matrix. As a result, Li-ion diffusion pathway is expanded significantly by the Li 6.25 PS 5.25 Cl 0.75 additives. An optimum ionic conductivity of 1.4 mS cm −1 at 70 °C for CPEs-1 was obtained, and a LFP/Li demo battery delivers a high capacity retention of 91.1% for 100 cycles at 0.2 C.
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高影响因子
危险品化学品经营许可证（带存储）