CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Chuankai Fu,Shuaifeng Lou,Xing Xu,Can Cui,Can Li,Pengjian Zuo,Yulin Ma,Geping Yin,Yunzhi Gao
Owing to high safety and considerable energy density , rechargeable all-solid-state lithium-metal polymer batteries (ASSLPBs) with organic-inorganic composite solid-state electrolytes (CSSEs) have been recognized as one of the most promising battery systems. However, 4 V or above-class ASSLPBs still suffer serious capacity degradation arising from the complex interface issues between the electrode and electrolyte. Herein, for the first time, we find the oxidation decomposition of TFSI - anion and further interaction with PEO polymer matrix in the LiNi 0.8 Co 0.1 Mn 0.1 LiO 2 (NCM811)/CSSEs (PEO-LiTFSI-LAGP)/Li cell, which cause continuous damage to the interfacial stability and persistent capacity degradation. Increasing the ratio of LAGP filler in CSSEs membrane and employing PEO-LiBOB electrolyte in composite cathode were demonstrated effective. As a consequence, the ASSLPBs show high reversibility, and high capacity retention up to 88% (3.0–4.2 V) and 78% (3.0–4.3 V) after 100 cycles with the charge/discharge current density of 30 mA g −1 (35 °C). The understanding on capacity degradation mechanism, along with the positive improvement strategies validly boosts the development and promising application of 4 V-class ASSLPBs.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Wenji Zheng,Zhen Liu,Rui Ding,Yan Dai,Xiangcun Li,Xuehua Ruan,Gaohong He
Electrospun fibers composite membrane shows an insufficient CO 2 permeability due to the impermeable polymer fibers. In this work, highly permeable poly(1-trimethylsilyl-1-propyne) (PTMSP) electrospun fiber were utilized to construct continuous and fast transport pathway with low-resistance for gas molecules in PEO matrix. The PEO/PTMSP electrospun fiber composite membrane (EFCM) was obtained by the in-situ polymerization of polyethylene glycol (PEG) into the voids of PTMSP electrospun fibers, which is demonstrated by FTIR and XPS characterizations. Furthermore, the obtained EFCM is dense and defect-free, which is confirmed by SEM images. Specifically, the PTMSP fibers and PEO matrix present good interfacial compatibility, as revealed by DSC results. In addition, PTMSP electrospun fibers perform as skeleton for EFCM to reinforce the membrane mechanical properties. The PEO/PTMSP EFCM shows CO 2 permeability of 281 Barrer and CO 2 /N 2 selectivity of 32.94. The CO 2 permeability is 280% higher than that of pure PEO membrane, which is resulted from the continuous and fast transport pathway provided by PTMSP electrospun fibers. The CO 2 /N 2 selectivity is enhanced by 4 to 6 times in comparison with pure PTMSP membrane and PTMSP c-EFM, which can be attributed to the affinity between EO groups of PEO matrix and CO 2 molecules and also the screening effect from the tortuous pathway of PTMSP fibers. This superior gas separation performance of PEO/PTMSP EFCM exceeds most reported PTMSP based membranes, especially its selectivity of CO 2 over N 2 is significantly high. Consequently, this proposed EFCM with continuous and fast transport pathway holds a competitive prospect for polymer based CO 2 capture.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2022
·Vol. 18
·期 25
·2106357
·
IF 15.153
Sili Yi,Qiong Liu,Zeyu Luo,Jacqueline Jialu He,Hui-Lin Ma,Wanlu Li,Di Wang,Cuiping Zhou,Carlos Ezio Garciamendez,Linxi Hou,Jin Zhang,Yu Shrike Zhang
It is well-known that tissue engineering scaffolds that feature highly interconnected and size-adjustable micropores are oftentimes desired to promote cellular viability, motility, and functions. Unfortunately, the ability of precise control over the microporous structures within bioinks in a cytocompatible manner for applications in 3D bioprinting is generally lacking, until a method of micropore-forming bioink based on gelatin methacryloyl (GelMA) was reported recently. This bioink took advantage of the unique aqueous two-phase emulsion (ATPE) system, where poly(ethylene oxide) (PEO) droplets are utilized as the porogen. Considering the limitations associated with this very initial demonstration, this article has furthered the understanding of the micropore-forming GelMA bioinks by conducting a systematic investigation into the additional GelMA types (porcine and fish, different methacryloyl-modification degrees) and porogen types (PEO, poly(vinyl alcohol), and dextran), as well as the effects of the porogen concentrations and molecular weights on the properties of the GelMA-based ATPE bioink system. This article exemplifies not only the significantly wider range of micropore sizes achievable and better emulsion stability, but also the improved suitability for both extrusion and digital light processing bioprinting with favorable cellular responses.
研究领域:
生物材料
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组织工程
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生物打印
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2023
·
IF 9.2
Qingyue Han,Suqing Wang,Wenhao Ren,Fangdan Zhang,Zhanbo Tang,Ju Wang,Haihui Wang
Poly (ethylene oxide) (PEO)-based electrolytes are under intense research because of their high safety, low cost and easy to scale fabrication. But several barriers, such as the poor ionic conductivity , slow reaction kinetics and uneven lithium deposition, still prevent their practical implementation. Herein, ferrocene (Fc) is utilized as a novel redox mediator filler for PEO based-electrolyte to optimize the performance of all-solid-state Li-metal battery . In addition to enhancing the ionic conductivity of electrolyte via Fe–O coordination interaction and Li-cyclopentadienyl ligands cation-π interaction, Fc can also regulate uniform lithium ionic flux over Li metal and inhibit lithium dendrite growth. Moreover, Fc can accelerate the electron transfer and reaction kinetic of LiFePO 4 cathode because of its properties of electron-transfer mediator. As a result, the all-solid-state LiFePO 4 /PEO electrolyte/Li battery with the addition of Fc shows notable cycling stability. It delivers an initial capacity of 158.2 mAh g −1 at 0.5 C and maintains 146.1 mAh g −1 after 300 cycles with a high capacity retention of 92.5%. This work offers a convenient method for durable all-solid-state lithium-metal batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2024
·
IF 5.4
Shangqing Qu,Guohong Cai,Xianji Qiao,Guobao Li,Junliang Sun
The incorporation of ceramic fillers into polymer electrolytes has proven to be effective in bolstering their mechanical robustness, improving ionic transport efficiency, and ensuring enhanced interface integrity. Nonetheless, the current repertoire of suitable ceramic fillers for such applications is still somewhat limited. Zeolites, renowned for their pronounced adsorption capabilities and potential as sodium-ion conductors, have not been extensively studied regarding their impact on the electrochemical performance of composite electrolytes. In this work, we have developed a novel composite polymer electrolyte (CPE) based on poly(ethylene oxide) (PEO) integrated with LTA zeolite nanoparticles. The cation adsorption on the surface of LTA zeolite particles introduces additional ion migration pathways, while the interaction between hydroxyl groups and ether atoms of the PEO matrix weakens the coordination between Na+ and PEO, thereby promoting sodium-ion mobility within the LTA/PEO CPE. The synergistic effect of cation adsorption and Lewis acid–base action on the zeolite surface yields an impressive sodium-ion transference number of 0.44. The integration of the LTA zeolite into the composite electrolyte diminishes the interfacial resistance against sodium metal electrodes, effectively mitigating sodium dendrite formation. The NVP||PEO-10||Na battery incorporating 10 wt % LTA zeolites exhibits a capacity retention of nearly 88% after 100 cycles at 0.2 C, which is significantly better than those without the zeolite.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMERS AND THE ENVIRONMENT
·
2019
·Vol. 27
·期 11
·2369-2379
·
IF 2.765
Zhang Meng,Zhang Ai-ling,Li Qiu,Li Fang-fang,Wang Song,Li San-xi
A novel polyethylene oxide (PEO)/polylactic acid (PLA) solid polymer electrolyte (SPE) doped with Liquid crystal ionomer (LCI) was prepared by automatic scraping membrane technology and the liquid crystal property of LCI was proposed as an effective strategy to improve the conductivity. The highest conductivity of the SPE with 0.5 wt% LCI achieve a value of 2.19 × 10 −4 S/cm at 17 °C which is approximately four orders of magnitude higher than that of the original PEO solid polymer electrolyte, conductivity at room temperature is 10 −7 –10 −8 S/cm. This is because the crystallinity is reduced by 25.3% compared to the pure PEO host. Differential Scanning Calorimetry (DSC) and polarizing microscope (POM) characterize the structure and properties of LCI. Electrochemical Impedance Spectroscopy (EIS) shows that the conductivity of the polymer electrolyte with 0.5 wt% LCI increased abruptly at 35 °C as the temperature is higher than T g of LCI, reaching 6.37 × 10 −4 S/cm which is 191% higher than that at 17 °C. There ionic conductivity has been improved extremely by continuous channel for efficient ion transportation, especially at the microtherm. And this change is greater at the elevated temperature regions, in line with the VTF equation. In summary, LCI’s liquid crystal performance can be used as an effective strategy to improve the low temperature conductivity of SPE.
研究领域:
材料科学
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化学工程
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2021
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IF 8.198
Wei-Shi Sun,Ming-Jie Yin,Wen-Hai Zhang,Shuo Li,Naixin Wang,Quan-Fu An
Excessive CO2 emissions arising from fossil energy utilization pose severe threats to the environment, climate, and biological species. To this end, high-efficiency separation membranes have been developed to mitigate emerging challenges. Bisphenol A ethoxylate diacrylate (BPA) and poly(ethylene glycol) methyl ether acrylate (PEGMEA) were UV-cross-linked in the presence of low molecular weight poly(ethylene glycol) dimethyl ether (PEGDME) to prepare high-performance CO2 capture membranes in a green way. During the entire membrane fabrication process, no additional solvent was involved and no waste of membrane materials occurred, resulting in a green process. The such-prepared membrane presents an outstanding CO2 permeability of 4883 Barrer, a new record for poly(ethylene oxide) membranes, with a high CO2/N2 ideal selectivity of 43 due to the cooperative contribution of BPA and PEGDME. The unprecedented separation performance of our manufactured membrane is even higher than that of the 2019 CO2/N2 upper bound. Considering the rapid, cost-effective, and green fabrication process, our membrane potentially offers a dramatic advantage in alleviating the current greenhouse gas issue and shows great promise for practical applications.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
Nanomaterials
·
2020
·Vol. 10
·期 1
·157
·
IF 4.324
Xinjie Tan,Yongmin Wu,Weiping Tang,Shufeng Song,Jianyao Yao,Zhaoyin Wen,Li Lu,Serguei V. Savilov,Ning Hu,Janina Molenda
Composite polymer electrolytes provide an emerging solution for new battery development by replacing liquid electrolytes, which are commonly complexes of polyethylene oxide (PEO) with ceramic fillers. However, the agglomeration of fillers and weak interaction restrict their conductivities. By contrast with the prevailing methods of blending preformed ceramic fillers within the polymer matrix, here we proposed an in situ synthesis method of SiO2nanoparticles in the PEO matrix. In this case, robust chemical interactions between SiO2nanoparticles, lithium salt and PEO chains were induced by the in situ non-hydrolytic sol gel process. The in situ synthesized nanocomposite polymer electrolyte delivered an impressive ionic conductivity of ~1.1 × 10−4S cm−1at 30 °C, which is two orders of magnitude higher than that of the preformed synthesized composite polymer electrolyte. In addition, an extended electrochemical window of up to 5 V vs. Li/Li+was achieved. The Li/nanocomposite polymer electrolyte/Li symmetric cell demonstrated a stable long-term cycling performance of over 700 h at 0.01–0.1 mA cm−2without short circuiting. The all-solid-state battery consisting of the nanocomposite polymer electrolyte, Li metal and LiFePO4provides a discharge capacity of 123.5 mAh g−1, a Coulombic efficiency above 99% and a good capacity retention of 70% after 100 cycles.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Zexiao Cheng,Jingwei Xiang,Lixia Yuan,Yaqi Liao,Yi Zhang,Xiaoning Xu,Haijin Ji,Yunhui Huang
The solid-state battery with a lithium metal anode is a promising candidate for next-generation batteries with improved energy density and safety. However, the current polymer electrolytes still cannot fulfill the demands of solid-state batteries. In this work, we propose a “5H” poly(ethylene oxide) (PEO) electrolyte via introducing a multifunctional additive of tris(pentafluorophenyl)borane (TPFPB) for high-performance lithium metal batteries. The addition of TPFPB improves the ionic conductivity from 6.08 × 10–5 to 1.54 × 10–4 S cm–1 via reducing the crystallinity of the PEO electrolyte and enhances the lithium-ion transference number from 0.19 to 0.53 via anion trapping due to its Lewis acid nature. Furthermore, the fluorine and boron segments from TPFPB can optimize the composition of the solid–electrolyte interphase and cathode–electrolyte interphase, providing a high electrochemical stability window over 4.6 V of the PEO electrolyte along with significantly improved interface stability. At last, TPFPB can ensure improved safety through a self-extinguishing effect. As a result, the “5H” electrolyte enables the Li/Li symmetric cells to achieve a stable cycle over 2200 h at the current density of 0.2 mA cm–2 with a capacity of 0.2 mA h cm–2; the LiFePO4/Li full cells with a high LFP loading of 8 mg cm–2 exhibits decay-free capacity of 140 mA h g–1 (99% capacity retention) after 100 cycles; and the NCM811/Li cells exhibit a high capacity of 160 mA h g–1 after 50 cycles at 0.5 C. This work presents an innovative approach to utilizing a “5H” electrolyte for high-performance solid-state lithium batteries.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2026
·Vol. 33
·期 5
·1574-1584
·
IF 8.8
Liu Ting,Xu Hao,Liu Shuai,Cai Shixia,Wang Weimin,Song Kaikai,Hu Lina,Sui Kunyan
Lithium metal batteries have been widely used in energy storage applications owing to their high theoretical energy density. However, the unstable solid electrolyte interphase (SEI) in the batteries lead to the formation of lithium dendrites and “dead lithium”, thus affecting the safety and cycle life of the battery. To address this issue, an artificial SEI was prepared using a polymer coating strategy. The introduction of succinonitrile (SN) accelerates ion transport by promoting the dissociation of lithium salts. The solid electrolyte Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 (LLZTO) enhances the mechanical strength of artificial SEIs and promotes ion conduction. Furthermore, the competitive coordination between LLZTO and SN inhibits lithium anode corrosion, forming SEI rich in LiF and Li 3 N. Therefore, the lithium metal anode modified with an artificial SEI can be stably plated/stripped for more than 10000 h. The LiFePO 4 full cell assembled with the modified anode exhibited a discharge specific capacity of 133 mAh·g −1 and a capacity retention of 97% after 1000 cycles at 2 C (1 C = 170 mA·g −1 ). Notably, the anode modified with the artificial SEI exhibited excellent electrochemical performance even at low temperatures.
✓ 已验证
DOI
高影响因子
MACROMOLECULAR CHEMISTRY AND PHYSICS
·
2025
·
IF 2.7
Chenglong Wan,Like Hou,Qing Hu,Zihe Zhao,Yanxia Yang,Biao Zhao,Jianping Deng,Kai Pan
A series of thermoplastic polyamide elastomers (TPAEs) utilizing polyamide 66 (PA66) as the hard segment and amorphous diamine-sealed poly(oxypropylene)-poly(oxyethylene)-poly(oxypropylene) (PPO-PEO-PPO) with different molecular weight as the soft segment are synthesized through one-step melt polycondensation method. The chemical structure of TPAEs is confirmed by Fourier transform infrared spectroscopy (FT-IR) and hydrogen magnetic resonance spectroscopy ( 1 H-NMR). Differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) results show that short-chain polyetheramine (Jeffamine-ED600) has good compatibility with PA66, which limits crystal growth and greatly reduced crystallinity, can be used as diluent to reduce the melting point of the material. However, the microphase separation of long-chain polyetheramine (Jeffamine-ED900) and PA66 leads to the increase of crystallinity, and the melting temperature does not decrease significantly with the increase of soft segment content. Mechanical properties tests show that all TPAEs exhibit good mechanical properties and excellent energy dissipation, with tensile strength up to 45 MPa and elongation at break up to 630%. The introduction of PEO unit results in the water absorption of TPAEs ranging from 25 to 65%, and the surface resistivity varying between 2.45 × 10⁹ and 1.6 × 10¹⁰ Ω, suggesting the synthesized TPAEs are suitable for use as permanent anti-static materials.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2025
·
IF 3.2
Yi-Dan Song,Xue-Lu Wang,Ye-Feng Yao
This study reports a high-performance composite solid polymer electrolyte by incorporating 2D LiC3N4 nanosheets into poly(ethylene oxide) (PEO), achieving an ionic conductivity of 1.95 × 10–4 S/cm at 50 °C and a wide electrochemical window of 5.2 V vs Li/Li+. The 2D nanostructure effectively suppresses PEO crystallization while creating continuous ion channels, yielding a high Li+ transference number (tLi+) of 0.65 and dendrite-resistant cycling stability (390 h in Li symmetric cells). When paired with LiFePO4 cathodes, full cells deliver 143 mAh/g of capacity with 90% retention, demonstrating superior performance compared to conventional PEO-based systems. This work establishes LiC3N4/PEO composites as promising electrolytes for flexible all-solid-state batteries.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）