JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Shujun Qiu,Longde Duan,Errui Wang,Jiaxiao Meng,Fen Xu,Lixian Sun,Hailiang Chu
The development of cathode materials exhibiting high capacity and superior cycling performance plays a pivotal role in enhancing the energy density of lithium-ion batteries (LIBs). In this context, lithium-rich layered oxides (LLOs) have emerged as leading candidates among cathode materials owing to their exceptionally high specific capacities. However, prolonged cycling induces the detrimental interfacial reactions between LLOs and electrolytes, leading to oxygen release, transition metal dissolution, and structural microcracks, collectively driving progressive voltage fade and capacity deterioration. In this study, lithium tri(tert-butoxy)hydridoaluminate (LTBA) was employed as a functional electrolyte additive to optimize the electrochemical performance of a model Li-rich layered oxide cathode (Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 O 2 , denoted as LMNCO). Remarkably, the LTBA-modified LMNCO exhibited a capacity retention of 83.6% after 300 cycles at 1 C, significantly outperforming the bare electrolyte system (only 45.6% retention). Notably, the voltage fade in LTBA-modified electrolyte was attenuated to 1.31 mV per cycle, representing a 39.4% reduction compared to conventional electrolyte (2.16 mV per cycle). The experimental results indicate that the LTBA additive in electrolyte acts as an HF scavenger and moderate reducing agent, preventing transition metals from dissolving in the LMNCO cathode.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
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IF 8.1
Qing Liu,Huifang Xing,Yan Zhang,Yunze Zhao,Meng Rong,Huizhou Liu,Liangrong Yang
The metatitanic acid H 2 TiO 3 (HTO) with high selectivity shows potential in lithium extraction from salt lake brine. Nevertheless, the sluggish adsorption kinetics and unsatisfying actual adsorption capacity hinder H 2 TiO 3 industrial application. Herein, a rare earth element Nd-doped H 2 TiO 3 (Nd-HTO-1 %) was synthesized. The crystallinity, morphology, hydrophilicity, adsorption property and mechanism of Nd-HTO-1 % were systematically characterized by a series of techniques. Interestingly, Nd-doping promotes the generation of oxygen vacancies, thereby increasing the density of surface hydroxyl groups and making the surface high-hydrophilic and particle size decreased. After 1 % Nd-doping, high-hydrophilic HTO was obtained with a contact angle of 16.5°. The adsorption capacity of Nd-HTO-1 % increased by 12.5 % compared with HTO, and the equilibrium time of adsorption reduced by half to 4 h. After eight cycles, Nd-HTO-1 % still showed a considerable adsorption capacity of 39.69 mg·g −1 . In the meantime, the dissolution loss of titanium is merely 0.14 %, showing excellent cycling stability. Combined with the considerable selectivity exhibiting in Qarhan salt lake brine, it demonstrates potential in utilization of Nd-doped H 2 TiO 3 for lithium extraction from salt lake brine.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
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IF 8.1
Ping Li,Yuan Zhou,Chunxi Hai,Yu Tang,Ying Cheng,Yanxia Sun,Shengde Dong,Luxiang Ma,Xin He,Qi Xu
As a promising technology for lithium extraction from salt lakes, nanofiltration membranes still face challenges in balancing between permeability and selectivity. In this paper, highly dispersed functionalized boron nitride nanosheets (BNNSs-NH 2 ) were prepared by modifying exfoliated boron nitride nanosheets (BNNSs) with polydopamine, which were incorporated into a polyamide (PA) layer by aqueous phase conditioning to prepare positively charged polyamide nanofiltration membranes. Scanning electron microscopy (SEM) showed that the PDA nanoclusters on the surface of the BNNSs can disrupt the regular stacking parallel to the membrane surface. Energy spectrum (EDS) of SEM and X-ray photoelectron spectroscopy (XPS) etching further revealed that BNNSs-NH 2 were dispersed within PA layer, creating transmembrane channels for molecular diffusion. The results showed a pure water permeance of 8.55 ± 0.24 L/m 2 h bar, indicating that the stabilized intercalation of BNNSs-NH 2 in the PA layer synergistically improved the water permeability. Meanwhile, the retention rate of MgCl 2 remained at 94 %, which was attributed to the enhanced compatibility between BNNSs-NH 2 and polyamide matrix by the polydopamine coating (PDA) on the surface, as well as the Dornan effect repulsion by the enhanced positive charge on the membrane surface. After the three-stage nanofiltration of membrane, the Mg 2+ /Li + ratio decreased from 50 to 0.12. Overall, this method balances permeability and selectivity by adjusting pore size and positive charge, potentially offering new ideas and insights for the preparation and development of nanofiltration membranes for Mg 2+ /Li + separation.
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Small
·
2024
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IF 13
Yuying Liu,Tao Huang,Zhencheng Huang,Weiyuan Huang,Jing Chen,Hao Jia,Xuanlong He,Weibin Chen,Haoran Wei,Liewu Li,Xiangzhong Ren,Xiaoping Ouyang,Jianhong Liu,Shenghua Ye,Xuming Yang,Feng Pan,Qianling Zhang,Jiangtao Hu
The practical application of lithium metal batteries (LMBs) is largely hindered by the notorious lithium dendrite growth, low cycle efficiency associated with insufficient electrode–electrolyte interphase dynamics, and electrolyte combustion. Here, an advanced electrolyte using a combination of three kinds of salts dissolved in carbonate-based solvents is developed. The salt anions dominate a primary solvation sheath, resulting in weak interaction between Li + and the solvents, as well as the in situ formation of an inorganic-rich bilayer solid electrolyte interface (SEI). The designed electrolyte enables high cycle stability in LMBs with a high-loading NMC cathode (approximately 20 mg cm −2 ), exhibiting 89.89% capacity retention after 200 cycles with the cutoff voltage of 4.5 V. Cryo-TEM characterization and density-functional theory (DFT) calculations reveal that the borate-based bilayer SEI, characterized by an exceptional dense structure, effectively suppresses lithium dendrite growth, and certify the crucial role of inorganic component continuity and density within the SEI, which surpasses the absorption and migration energy barrier in terms of significance. This profound understanding of SEI structure holds great potential for advancing the development of high-stable LMBs and can be expanded to other battery system.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Baolei Li,Qingsong Cai,Jianmin Zhang,Kai Zhang,Zongmin Zheng
The lithium metal batteries (LMBs) using Li metal as the anode are becoming one of the representatives of next-generation high-energy–density batteries. However, uneven deposition and stripping of Li usually cause capacity loss during cycling. To address these issues, NO 3 − intercalated LiAl layered double hydroxides (LiAl-LDHs) nanosheets were used as novel solid additives for conventional carbonate electrolytes. The abundant Li + transport pathways brought by LiAl-LDHs and the interlayer NO 3 − in LiAl-LDHs are beneficial to the uniform concentration distribution of Li + and high-quality solid electrolyte interface (SEI), thereby achieving stable deposition/stripping of Li. The assembled Li||Li symmetric cell was cycled stably for 500 h at a current density of 0.5 mA cm −2 . The Li||LFP(LiFePO 4 ) full cell had a capacity retention of 90 % after 800 cycles at 1C. Even at a high operating temperature of 50 °C, the Li||Li symmetric cells and Li||LFP full cells can still obtain steady charging-discharging performances.
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高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
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2025
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IF 5.4
Majed Y.A. Almashnowi
All-solid-state Li-batteries have become viable options for energy storage materials over-commercialized Li-ion batteries due to their safety, wider electrochemical stability window, and impressive energy density. All-solid-state Li-based batteries use sulfide-based electrodes with high theoretical specific capacity and ionic conductivity, whereas solid electrolytes have recently shown improved energy density. However, using Li-based batteries in all-solid-state batteries for practical purposes is still a great challenge because of their interfacial issues among the solid electrolytes and electrodes. To elucidate these interfacial issues, this study presents an in-situ liquid-phase approach to prepare CoS 2 @Li 7 P 3 S 11 as the electrode for all-solid-state Li-batteries by coating Li 7 P 3 S 11 solid electrolyte on cobalt disulfide nanoparticles. Originating from enhanced intimate contact and improved area of contact in the solid electrolyte of sulfide and active material, the synthesized CoS 2 @Li 7 P 3 S 11 nanocomposites employed as a cathode in all-solid-state Li-battery, which shows the ultrahigh cyclic stability and reversible capacity. All-solid-state Li-based batteries consist of CoS 2 @Li 7 P 3 S 11 nanocomposites, Super P, neat Li 7 P 3 S 11 as cathode material, and Li metal as an anode electrode material ( Li-75 %Li 2 S-24 %P 2 S 5 -1 %P 2 O 5 /Li 7 P 3 S 11 /CoS 2 @Li 7 P 3 S 11 /Li). At low (100 mA/g) and high (1000 mA/g) current density, exhibits an 1112.6 mAh/g reversible discharge capacity after 30 cycles and 208.4 mAh/g after 200 cycles, respectively.
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高影响因子
Matter
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2024
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IF 17.3
Pei Li,Shuo Yang,Jiaxiong Zhu,Shengnan Wang,Yue Hou,Huilin Cui,Ze Chen,Rong Zhang,Zhuoxi Wu,Yiqiao Wang,Zhiquan Wei,Xinghui Liu,Shaoce Zhang,Xinliang Li,Chunyi Zhi
Chlorine-based electrochemical energy storage is a promising candidate for sustainable battery technology. The anionic redox reaction of Cl 0/−1 is of interest due to its superior redox potential (1.36 V vs . standard hydrogen electrode [SHE]), capacity (756 mAh g −1 ), high power, and low cost. Although Cl chemistry has been used in aqueous batteries for a long time, its deployment in organic lithium batteries has been significantly impeded due to the insolubility of Cl − ions (<0.1 M). Scarce oxidizable Cl − blocks redox reactions and the inevitable lithium chloride (LiCl) film passivates electrodes on discharge. We report a eutectic effect to improve the Cl − solubility in organic electrolytes (2 M or higher) by mixing a series of N-/P-centered chloride salts with lithium bis(trifluoromethanesulfonyl)imide at specific ratios. Based on an optimized Cl − concentration, a Li-Cl 2 cell using I as a chemical fixation can achieve a three-electron transfer with a specific capacity of 702 mAh g −1 and an energy density of 1,116 Wh kg −1 .
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高影响因子
ELECTROCHIMICA ACTA
·
2025
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IF 5.6
Zhengping Ding,Ran Song,Yu Shen,Huahui Lin,Peng Wei,Xiangqun Zhuge,Ke Qu,Zhenzhong Yang,Yurong Ren
Combining a high cut-off voltage cathode with a high specific-capacity lithium metal anode offers a promising path toward ultra-high-energy-density batteries (> 400 Wh kg -1 ). However, the practical application of LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811)||Li batteries with a 4.5 V cut-off voltage is challenged by severe interface deterioration. This study introduces a novel bifunctional electrolyte additive called 2,2,2-Trifluoroethyl Nonafluorobutanesulfonate (TNS), designed to form a thin, robust electrolyte interface layer on both cathode and anode surfaces. Detailed analysis reveals that TNS decomposes and modifies the solid-electrolyte-interface layer. Through the synergistic effects of fluoride and sulfonate functional groups, the resulting cathode-electrolyte-interface (CEI) enhances the structural stability of NCM811 while providing a high-efficiency lithium-ion transport channel to accelerate Li + insertion and extraction. At a cut-off voltage of 4.5 V, NCM811||Li batteries with 1 % TNS (by weight) exhibit high discharge capacity retention of 74.2 % after 150 cycles at a 1C rate and 60.1 % after 150 cycles at a 2C rate. This study offers valuable insights for designing high-voltage electrolyte additives in ultra-high-energy-density lithium metal batteries.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
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IF 9
Yanli Zhao,Ziqi Cao,Yanxiang Liang,Zhichen Liang,Keyin Ling,Feiyan Zhou,Changsheng Guo,Yao Qian,Pengbi Liu,Xi Liu,Chunguang Wang,Mengchen Zhang,Qinglei Zhang
Membrane consisting of high-throughput aligned ion channels has been pursued for precise Li + /Mg 2+ separation. Herein, an aligned amino-functionalized γ-cyclodextrin nanofiltration membrane was fabricated via a customized interfacial polymerization technique, where the orientation of cyclodextrin ion channels was elaborately tailored by controlling the reaction conditions. The as-fabricated membrane featured ultra-thin selective layer of ∼ 26 nm, average pore size of ∼ 0.72 nm, and ultra-stable positive surface charges. In particular, the aligned intrinsic cyclodextrin cavities in the membrane offered vertical shortcuts for preferential Li + transport. Taking advantage of these, superior membrane permselectivity was achieved with the water permeance of 6.5 L·m −2 ·h −1 ·bar −1 and the Li + /Mg 2+ separation factor up to 22.5, highlighting the great potentials in lithium extraction and other ion separations. Given its simplicity and generality, this customized interfacial polymerization strategy holds great promise for manipulating aligned transport channels in thin film composite membranes, thereby enhancing their performance in a wide range of applications including, but not limited to, desalination, water purification, resource extraction, and energy conversion.
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JOURNAL OF POWER SOURCES
·
2024
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IF 8.1
Zilong Zhuang,Xinqiang Rao,Fuming Zhang,Vijaykumar V. Jadhav,Daniel Q. Tan
Achieving flawless growth of metal-organic frameworks (MOFs) on carbon cloth is challenging and the influence of plasma on the growth of MOFs still needs to be examined. In this study, flawless zeolitic imidazolate framework-8 (ZIF-8) was grown on oxygen plasma activated carbon fiber and ZnO, N-dually doped hollow carbon web ( p -ZNCC) was obtained after sintering. The oxygen plasma generated numerous C O polar bonds on the carbon fiber, which ensures tightened uniform growth of ZIF-8 particles and promoting the formation of lithiophilic pyrrolic N and ZnO after sintering. This enables uniform lithium deposition and rapid lithium-ion diffusion during the operation. The resulting lithium electrode with the p -ZNCC host ( p -ZNCC-Li) exhibits stable lithium stripping/plating for up to 3000 h and a voltage hysteresis of 36 mV when cycled at 10 mA cm −2 -10 mAh cm −2 . Electrochemical impedance spectroscopy (EIS) reveals low charge transfer resistance and a high diffusion coefficient for p -ZNCC-Li. Moreover, the LNMO||p-ZNCC-Li cell demonstrates improved capacity retention at 1C after 250 cycles. This research is pioneering in using plasma to help grow metal-organic frameworks (MOFs) on carbon cloth that has lithiophilic spots, indicating significant progress in the development of lithium metal anode design.
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DESALINATION
·
2025
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IF 9.8
Shishuo Wang,Fei Guo,Xuemei Wu,Yuandong Jia,Gaohong He,Xiaobin Jiang
Lithium and its compounds are critical strategic resources with wide-ranging applications. This study developed a bipolar membrane precipitation coupled electrodialysis enrichment (BMp-EDe) process for extracting lithium from brines with an Mg/Li ratio of 20. The method is based on phase separation achieved through precipitation-coupled ion permeation and a synergistic mechanism for ion enrichment, resulting in significant process intensification. Key factors such as current density, molar ratio between diluate and base chambers, and base chamber concentration were optimized to control nucleation and prevent membrane fouling. Under conditions of current density ranging from 200 to 400 A·m −2 and a molar ratio of the diluate chamber to the base chamber between 13 and 16, the magnesium removal rate in the BMp-EDe process is found to exceed 99.90 %, with a separation factor greater than 20,000. The optimal separation factor is observed to reach 40,244, with a magnesium removal rate as 99.96 % and a lithium recovery rate as 95.32 %. With optimized operation conditions, the energy consumption of magnesium precipitation decreased from 11.89 kWh·kg −1 (Mg 2+ ) to 7.97 kWh·kg −1 (Mg 2+ ). Thus, an alternative method is presented that employs commercial bipolar membranes to achieve ultra-high magnesium‑lithium separation efficiency. Additionally, a mechanism for the continuous operation of the magnesium precipitation chamber is validated, which can effectively prevent membrane fouling.
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JOURNAL OF POWER SOURCES
·
2024
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IF 8.1
Chenxu Wang,LuLu Ren,Chunhua Ying,Jing Shang,John McCloy,Jin Liu,Wei-Hong Zhong
A high-performance solid electrolyte is critical for all-solid-state Li metal batteries which possess good safety and high energy densities. In this study, inspired by the unique ionic transport function and excellent adhesive properties of natural proteins, we successfully generated a novel solid electrolyte by applying soy protein as a dual-functional bridge to enable additional ion-conduction pathways and improve mechanical performance. The solid electrolyte with soy protein that interacts with both SiO 2 nanofabrics and polypolyethylene oxide (PEO) exhibits high ionic conductivity of 10 −5 S cm −1 (vs. 10 −6 S cm −1 of SiO 2 /PEO), improved Li + transference number of 0.550 (vs. 0.446 of SiO 2 /PEO), high Young's modulus of 1.862 MPa (vs. 0.356 MPa of SiO 2 /PEO) and excellent flexibility. As a result, the solid-state batteries with LiFePO 4 as cathode demonstrate a stable discharge capacity. This work provides a new strategy to advance the performance of solid electrolytes for achieving long-lifespan all-solid-state batteries.
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高影响因子
危险品化学品经营许可证（带存储）