ACS Nano
·
2024
·
IF 15.8
Pushun Lu,Sheng Gong,Chuhong Wang,Zhiao Yu,Yuli Huang,Tenghuan Ma,Jingchen Lian,Zhiwen Jiang,Liquan Chen,Hong Li,Fan Wu
All-solid-state batteries (ASSBs) working at room and mild temperature have demonstrated inspiring performances over recent years. However, the kinetic attributes of the interface applicable to the subzero temperatures are still unidentified, restricting the low-temperature interface design and operation. Herein, a host of cathode interfaces are constructed and investigated to unlock the critical interface features required for cryogenic temperatures. The unstable interface between LiNi0.90Co0.05Mn0.05O2 (Ni90) and Li6PS5Cl (LPSC) sulfide solid electrolyte (SE) results in unfavorable cathode–electrolyte interphase (CEI) and sluggish lithium-ion transport across the CEI. After inserting a Li2ZrO3 (LZO) coating layer, the activation energy of the Ni90@LZO/sulfide SE interface can be reduced from 60.19 kJ mol–1 to 41.39 kJ mol–1 owing to the suppressed interfacial reactions. Through replacing the LPSC SE and LZO coating layer by the Li3InCl6 (LIC) halide SE, both a highly stable interface and low activation energy (25.79 kJ mol–1) can be achieved, thus realizing an improved capacity retention (26.9%) at −30 °C for the Ni90/LIC/LPSC/Li-In ASSB. Moreover, theoretical evaluation clarifies that cathode/SE interfaces with high ionic conductivity and low energy barrier are favorable to the Li+ conduction through the interphase and the Li+ transfer across the cathode/interphase interface. These critical understandings may provide guidance for low-temperature interface design in ASSBs.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2020
·
IF 6.215
Lei Zhang,Hui Fan,Hongyu Wang
Recently, methyl acetate (MA)–based electrolyte solutions have attracted afresh interests in the field of electrochemical energy storage devices at low temperature on account of their distinctive physical properties of low viscosity and melting point. In this work, LiPF 6 –MA based solutions are employed in Li/graphite dual–ion batteries (DIBs). The intercalation behavior of solvated PF 6 − in graphite positive electrode from 1 M LiPF 6 –MA during the initial charge process is quite different from those in the subsequent cycles of charge–discharge. They are diagnosed by conventional electrochemical tests and in situ X–ray diffraction (XRD) measurements. Ethyl methyl carbonate (EMC) is introduced to activate the anion storage in graphite electrode, and then the discharge capacity of graphite positive electrode increases remarkably even in the solution of 1 M LiPF 6 –MA. Moreover, for 1 M LiPF 6 –MA/EMC (5:5 by vol.) at the low working–temperature of −25 °C, the discharge capacity of 41 mA h g −1 delivered by graphite positive electrode is apparently higher than those in both 1 M LiPF 6 –MA and LiPF 6 –EMC. Therefore, the LiPF 6 solutions based on MA/EMC binary solvent mixtures may be suitable for graphite positive electrode working at the low temperatures.
研究领域:
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2022
·Vol. 35
·期 6
·2208615
·
IF 32.086
Yihui Li,Xingfang Dong,Zewen Xu,Menglei Wang,Ruofei Wang,Juan Xie,Yangjian Ding,Pengcheng Su,Chengying Jiang,Xingmin Zhang,Liyu Wei,Jing-Feng Li,Zhaoqiang Chu,Jingyu Sun,Cheng Huang
Transition metal dichalcogenides (TMDs) are regarded as promising cathode materials for zinc-ion storage owing to their large interlayer spacings. However, their capabilities are still limited by sluggish kinetics and inferior conductivities. In this study, a facile one-pot solvothermal method is exploited to vertically plant piezoelectric 1T MoSe 2 nanoflowers on carbon cloth (CC) to fabricate crystallographically textured electrodes. The self-built-in electric field owing to the intrinsic piezoelectricity during the intercalation/deintercalation processes can serve as an additional piezo-electrochemical coupling accelerator to enhance the migration of Zn 2+ . Moreover, the expanded interlayer distance (9–10 Å), overall high hydrophilicity, and conductivity of the 1T phase MoSe 2 also promoted the kinetics. These advantages endow the tailored 1T MoSe 2 /CC nanopiezocomposite with feasible Zn 2+ diffusion and desirable electrochemical performances at room and low temperatures. Moreover, 1T MoSe 2 /CC-based quasi-solid-state zinc-ion batteries are constructed to evaluate the potential of the proposed material in low-temperature flexible energy storage devices. This work expounds the positive effect of intrinsic piezoelectricity of TMDs on Zn 2+ migration and further explores the availabilities of TMDs in low-temperature wearable energy-storage devices.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2023
·
IF 3.8
Jinxiu Hu,Xianlong Liu,Yi Liu,Kang Xue,Chengxiang Shi,Xiangwen Zhang,Li Wang,Ji-Jun Zou,Lun Pan
High-energy-density fuels are important for volume-limited aerospace vehicles, but the increase of the fuel energy density always leads to poor cryogenic performance. Herein, we investigated the transposed Paternò-Büchi reaction of biomass cyclic ketone and cyclic alkene to synthesize the new kind of alkyl-substituted polycyclic hydrocarbon fuels with high energy density and good cryogenic performance. The triplet-energy-quenching results and phosphorescent emission spectra reveal the sensitization mechanism of the reaction, including photosensitizer excitation, triplet-triplet energy transfer, cyclization and relaxation, and the possible reaction path was revealed by the DFT calculations. The reaction conditions of photosensitizer type and addition, molar ratio of substrates, reaction temperature and incident light intensity were optimized, with the target product yield achieving 65.5%. Moreover, the reaction dynamics of the reaction rate versus the light intensity is established. After hydrogenation deoxygenation reaction, three fuels with high density of 0.864-0.938 g·ml −1 and low freezing point of <−55 °C are obtained. This work provides a benign and effective approach to synthesize high-performance fuels.
研究领域:
化学工程
·
能源科学
·
合成化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2022
·
IF 4.889
Zhiyi Gao,Zongjing Lu,Yining Zhang,Jing Xia,Xuejing Zhang,Chao Sun,Yijun Yang,Yong Xu,Ke Wang,Xi Wang,Jiannian Yao
Li-ion batteries (LIBs) suffer from severe capacity recession at subzero temperatures due to the dramatic increase in charge transfer resistance induced by the sluggish desolvation process. In this paper, we report on by using the weakly coordinating molecule as electrolyte (1 M LiPF 6 in EC: DMC: PC = 1:1:1 vol%), the cell with MoS 2 as the model electrode exhibits better cycling performance and rate capability than the cell using commercial electrolytes (1 M LiPF 6 in EC: DMC = 1:1 vol%). Theoretical calculations and infrared spectroscopy indicate that PC is a weakly coordinated electrolyte molecule to Li + . Further, the electrochemical kinetics indicates that more Li + in the as-made electrolyte can intercalate into the MoS 2 layer. The electrochemical impedance spectroscopy reveals that the weak interaction between Li + and solvent molecules reduces the activation energy of desolvation process. This novel design concept opens up new paths to exploit the advanced electrolyte for LIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Hanwu Luo,Siqing Qi,Xin-Yu Fan,Fang-Di Ji,Yi-Hu Feng,Duo Si,Da-Wei Wang,Mengting Liu,Xiaogang Han,Peng-Fei Wang
Lithium-ion batteries are widely used in electric vehicles and smart grids to facilitate fast and stable energy storage at different temperatures. However, the decreased Li+ diffusion and poor electronic conductivity of commercial cathode materials inevitably lead to irreversible energy degradation at low temperature. Herein, we tame the relationship between diffusion and temperature of spinel LiNi0.5Mn1.5O4 cathode by incorporating Co element into transition-metal sites. The Co element into the LiNi0.5Mn1.5O4 lattice effectively improves the diffusion properties of lithium ions, enhances its electronic conductivity, and prevents the dissolution of Mn. Therefore, LiNi0.4Co0.1Mn1.5O4 could deliver a capacity retention of 93.89% at 1 C after 200 cycles at 25 °C. Even at −20 °C, it delivers 88.43% of its room-temperature capacity. Moreover, the assembled LiNi0.4Co0.1Mn1.5O4/graphite and LiNi0.4Co0.1Mn1.5O4/Li4Ti5O12 full cells both show a capacity retention of 98.03 and 86.61% at 1 C after 100 cycles, respectively. In particular, the LiNi0.4Co0.1Mn1.5O4/Li4Ti5O12 full battery still exhibits a discharge capacity of 116.9 mA h g–1 at −20 °C, reaching 90.24% of its room-temperature capacity. These results not only pave the way for improving the electrochemical performance of 5 V-based cathode materials but also provide insightful guidance for their commercial applications at low temperature.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2025
·
IF 8
Qingyuan Ma,Hongwei He,Wenwen Yu,Jianjun Xu,Quanxin Xu,Jiaqi Xue,Yushi Jin,Rong Zhu,Chen Han,Zhengkun Wang,Chen Cui,Jie Ma,Fuyong Liu,Heng Zhang,Huayun Du
Highly efficient regeneration of the aging SBS modified bitumen (SMB) is crucial for promoting the achievement of low-carbon development goals. Restoring the structure or performance of the aged SBS is the focus of the present work. Many studies have proved that the high temperature performance of aging SMB is deteriorated by using epoxy-type structural repair agent. Literatures have proved that epoxy-type structural repair agents with benzene ring can make the high temperature performance improve slightly. Therefore, it is necessary to propose a method that can make the high temperature performance improve greatly. In this paper, a rejuvenator containing trimethylol propane triglycidyl ether (TMPTE) combined with vegetable oil (VO) was selected. At the same time, the epoxy structural repair agent containing benzene ring, i.e., E51 epoxy resin (ER) was also selected to compare these two rejuvenators on recovering the comprehensive properties of aging SMB. Through GPC, FM, AFM and TGA tests, ER repair agent has good recovery effect for SBS network structure and adhesion performance for aging SMB. While TMPTE repair agent has good recovery effect for high temperature stability of the aged SMB and molecular weight of the aged SBS. Through DSR and ductility tests, it was found that these two rejuvenators had outstanding recovery for low temperature performance of aging SMB. Through MSCR and soften point tests, it was found that the high temperature performance of the repaired SMB by TMPTE was close to non-aging SMB. This suggests that TMPTE/VO is more effective in restoring the high/low temperature performance of regenerated SMB as a whole. This study can provide guidance for the recovery of comprehensive performance of epoxy-type repair agents regenerated SMB in a cost-effective and environment friendly way.
研究领域:
材料科学
·
土木工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Zhe-Jian Yi,Xiao-Yue Chen,Jia-Zhen Zhao,Yi-Ming Xie,Ji-Huai Wu,Zhang Lan,Fu-Da Yu,Lan-Fang Que,Hao Luo
Zn||V 2 O 5 full cell exhibit excellent low-temperature performance in Zn(ClO 4 ) 2 based electrolytes due to the strong hydrogen bond breaking effect. However, the crosstalk effect between the V 2 O 5 cathode and Zn anode at room temperature leads to continuous side reactions, highly limiting their practical application. Herein, a water deactivation strategy by introducing methanol additive has been proposed and its effect mechanism on the crosstalk has been explored. It is found that the methanol additive is conducive to build a water-poor solvation structure and reduce the activity of free water, inhibiting the corrosion and improving the cycle stability of Zn anode. In addition, methanol additive triggers the reversible cycling of inert Zn 3 (OH) 2 (V 2 O 7 )(H 2 O) 2 , and suppress its deposition on Zn anode, then breaking the electrochemical crosstalk problem of the Zn||V 2 O 5 system. As expected, the Zn||V 2 O 5 full cell at the designed electrolyte demonstrates superior performance at room and low temperature, delivering a high specific capacity of 300 mAh g −1 at 25 °C, and operating stably for 7500 (>2000 h) cycles without capacity loss at −20 °C, which are superior to most reported works. This work might provide new ideas for addressing electrochemical crosstalk and constructing advanced batteries with superior temperature adaptability.
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
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Haohe Huang,Fuguang Ban,Zhijun Zhang,Chongxing Huang
Cellulose is highly susceptible to adverse effects under wet-low-temperature, and high-temperature conditions, leading to a significant decline in performance. This study employs xylan as a compatibilizer to co-dissolve cellulose/lignin/xylan in an ionic liquid, forming a composite coating on filter paper through hot-press infiltration. The experimental results demonstrate that the composite coated paper fabricated using this approach exhibits superior mechanical properties, with dry and wet tensile strengths of 50.75 MPa and 15.20 MPa, respectively, compared to those of untreated filter paper (18.66 MPa and <2 MPa). Additionally, the water absorption rate and water vapor transmission rate decreased significantly, from 219.92 % and 670.14 m 2 g −1 to 83.40 % and 172.96 m 2 g −1 , respectively. The mechanism behind the enhanced wet-low-temperature strength of composite-coated paper after high-temperature aging was also investigated. Results demonstrate that compared to the coated paper without lignin/xylan additives, which exhibited wet-low-temperature tensile strengths of 2.92 MPa, the lignin/xylan-added coated paper maintained tensile strengths of 8.26 MPa under similar conditions. Furthermore, the presence of lignin/xylan significantly mitigates the formation of pores and cracks in the coated paper after high-temperature aging. This study provides a novel approach and theoretical guidance for utilizing wood fiber materials in extreme packaging environments.
研究领域:
材料科学
·
林业工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Powder Materials
·
2025
·
IF 24.9
Renfei Zhao,Yuanhang Gao,Zuosu Qin,Yuelin Li,Tao Zhang,Anqiang Pan,Ning Zhang,Renzhi Ma,Xiaohe Liu,Gen Chen
The poor oxidation stability of ether-based solvents has long been a major challenge limiting their practical application. To enhance the oxidative stability of ether-based electrolytes, the physicochemical properties of various glycol dimethyl ethers are screened, and diglyme (G2) is selected as the sole solvent for the electrolyte. Lithium bis(fluorosulfonyl)imide (LiFSI), a highly dissociative salt, is used as the primary salt, while lithium nitrate (LiNO 3 ) and lithium difluorophosphate (LiDFP), which have small ionic sizes and strong binding energies, are added as secondary salts. The resulting electrolyte can modulate the electric double layer (EDL) structure by NO 3 − and DFP − on the cathode side, leading to an increased Li + concentration that is originally repelled by the cathode. Additionally, the oxidation stability of the electrolyte is improved and the formed electrode-electrolyte interphase (EEI) is more uniform and stable, thereby enhancing the electrochemical performance of the cells. As a result, cells assembled with a total of 1M ternary lithium salt electrolyte in G2 solvent can operate at high voltage of 4.4 V. The Li||NCM811 cells maintain 80.2% capacity retention after 270 cycles at room temperature, with an average Coulombic efficiency of 99.5%, and exhibit 88.4% capacity retention after 200 cycles at −30 °C.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Xiaokang Gu,Qiannan Zhang,Qian Chen,Zhilin Yang,Qingwei Zhai,Yuying Jiao,Jinghan Zuo,Huiping Duan,Pengbo Zhai,Yongji Gong
Under harsh conditions, such as high-rate and low-temperature charging, part of Li ions cannot intercalate into the graphite (Gr) particles and will form dendrite-like Li plating, causing capacity fading and serious safety hazards in commercial lithium-ion batteries (LIBs). Herein, instead of eliminating the Li plating, a Li plating regulation strategy that transforms dead Li plating into reversible active Li plating is proposed by using a lithium dendrite inhibitor to realize safe and long-lifespan LIBs. Remarkably, only 1 wt.% single-atom manganese (SAMn) in the Gr anode (Gr-SAMn) is sufficient to achieve a significant improvement, thus both the volumetric and mass-energy density remain roughly unaffected. The amount of dead Li on the Gr anode can be reduced by 90%, thereby enabling much-improved pouch cell performance at high rates and low temperatures. The capacity retention of the Gr-SAMn||NCM811 pouch cell is 86.2% (23.0% higher than that of the pristine Gr||NCM811 pouch) for 1500 cycles at 2 C, and the cell can even be cycled at 5C charge. Even cycling at −20 °C, the average coulombic efficiency (CE) can be improved from 97.95% to 99.94% by using SAMn additive. Hence, this promising strategy provides a novel alternative to solve the Li plating issue.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
Joule
·
2020
·
IF 29.155
Wuhai Yang,Xiaofan Du,Jingwen Zhao,Zheng Chen,Jiajia Li,Jian Xie,Yaojian Zhang,Zili Cui,Qingyu Kong,Zhiming Zhao,Cunguo Wang,Qichun Zhang,Guanglei Cui
Despite their intrinsic safety and cost-effectiveness, aqueous zinc (Zn)-organic batteries have been struggling with the rapid performance degradation arising from the poor reversibility of Zn anodes and the dissolution of cathodes. Here, we present a new aqueous eutectic electrolyte by coupling a hydrated Zn salt (Zn(ClO 4 ) 2 ·6H 2 O) exclusively with a neutral ligand (succinonitrile) to mitigate these issues. The unique aqua Zn 2+ solvates with a succinonitrile-assisted solvation shell enable an unusual Zn/Zn 2+ reversibility of 98.4% Coulombic efficiency along with smooth Zn deposition. Moreover, all water molecules contribute to the formation of the eutectic network, resulting in a delayed oxidation and suppressed solvating ability. When a quinone-based polymer material (38 wt % sulfur content) is utilized as a cathode, the Zn-organic battery with this aqueous eutectic electrolyte exhibits an unprecedented cyclability with a low capacity decay rate (0.004% per cycle over 3,500 cycles) and superior low-temperature performance.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）