POLYMER COMPOSITES
·
2024
·
IF 4.8
Bing Wang,Nan Li,Jiale Li,Shan Cheng,Qingguang Bao,Ning Wang,Xigao Jian
Nine poly(phthalazinone ether ketone) resins were designed and synthesized using three bisphenol and four halogenated monomers. Poly(phthalazinone bisphenol ether ketone) (PPBEK) and poly(phthalazinone ether sulfone ketone) (PPBESK) demonstrated liquid oxygen compatibility (LOC), with PPBEK maintaining its LOC even after 20 days of immersion in liquid oxygen. The liquid oxygen compatibility mechanism of the polymers in the presence of force-thermal-chemical multi-energy fields was analyzed using techniques such as thermal analysis-infrared-gas chromatography (TGA-IR-GC), thermogravimetric analysis (TGA), and x-ray photoelectron spectroscopy (XPS). Carbon fiber (CF) reinforced composites were fabricated using PPBEK and PPBESK as matrices, with CF-PPBEK composites successfully achieving LOC. The microcracking resistance and mechanical properties of the composites were investigated in liquid oxygen at 90 K. The interaction mechanism between the composites and liquid oxygen was elucidated, providing theoretical guidance and an experimental foundation for the application of resin matrix composites in liquid oxygen storage tanks. Highlights Poly(phthalazinone ether) resins were meticulously designed and synthesized. ·PPBEK and PPBESK exhibited excellent liquid oxygen compatibility. Composites exhibited excellent liquid oxygen compatibility. Composites exhibited excellent low-temperature performance and heat resistance.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Xianqiang Zeng,Liguo Wang,Yan Cao,Peng He,Xiaoxuan Wang,Huiquan Li
Adhesives are widely used in everyday life; however, traditional polymer adhesives pose unavoidable hazards to the environment and living organisms due to their extensive use of toxic organic solvents, heavy reliance on fossil resources as synthetic raw materials, and lack of recyclability. Furthermore, they are incapable of maintaining a stable adhesion performance in harsh conditions. In this work, we present a facile yet powerful noncovalent bonding strategy for successfully constructing poly(glycidol-co-1,2-butylene oxide)/tannic acid supramolecular adhesives (PG-co-PBO/TA SAs) through hydrogen-bonding interactions between hyperbranched PG-co-PBO and natural TA. The SAs demonstrate an adhesion strength of 2.15 MPa at ambient temperature and maintain an adhesion strength of 1.53 MPa even at −196 °C. Moreover, it can be easily recycled through thermal treatment and retains stable adhesion strength even after undergoing multiple recycling cycles. The investigation of the structure–property relationship of SAs and molecular dynamics simulations has clarified that short alkyl chains of PG-co-PBO effectively protect the hydrogen-bonding networks from damage by repelling water at the adhesive interface. Consequently, SAs even maintain robust and long-lasting adhesion strength in acidic, alkaline, and seawater solutions. Importantly, unlike conventional adhesives, SAs do not employ organic solvents throughout the synthesis, bonding, and recycling processes. By designing functionalized polymers and utilizing polyphenolic compounds, this work provides a green and feasible strategy for the development of next-generation powerful supramolecular adhesives.
研究领域:
材料科学
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环境科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-11
·
IF 16.6
Tang Mengyao,Dong Shuai,Wang Jiawei,Cheng Liwei,Zhu Qiaonan,Li Yanmei,Yang Xiuyi,Guo Lin,Wang Hua
In contrast to conventional batteries, anode-free configurations can extend cell-level energy densities closer to the theoretical limit. However, realizing alkali metal plating/stripping on a bare current collector with high reversibility is challenging, especially at low temperature, as an unstable solid-electrolyte interphase and uncontrolled dendrite growth occur more easily. Here, a low-temperature anode-free potassium (K) metal non-aqueous battery is reported. By introducing Si-O-based additives, namely polydimethylsiloxane, in a weak-solvation low-concentration electrolyte of 0.4 M potassium hexafluorophosphate in 1,2-dimethoxyethane, the in situ formed potassiophilic interface enables uniform K deposition, and offers K||Cu cells with an average K plating/stripping Coulombic efficiency of 99.80% at −40 °C. Consequently, anode-free Cu||prepotassiated 3,4,9,10-perylene-tetracarboxylicacid-dianhydride full batteries achieve stable cycling with a high specific energy of 152 Wh kg −1 based on the total mass of the negative and positive electrodes at 0.2 C (26 mA g −1 ) charge/discharge and −40 °C.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
PubMed
高影响因子
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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2024
·Vol. 121
·期 5
·e2316914121
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IF 9.4
Xunzhu Zhou,Yaohui Huang,Bo Wen,Zhuo Yang,Zhiqiang Hao,Lin Li,Shu-Lei Chou,Fujun Li
High-performance sodium storage at low temperature is urgent with the increasingly stringent demand for energy storage systems. However, the aggravated capacity loss is induced by the sluggish interfacial kinetics, which originates from the interfacial Na+ desolvation. Herein, all-fluorinated anions with ultrahigh electron donicity, trifluoroacetate (TFA−), are introduced into the diglyme (G2)-based electrolyte for the anion-reinforced solvates in a wide temperature range. The unique solvation structure with TFA− anions and decreased G2 molecules occupying the inner sheath accelerates desolvation of Na+ to exhibit decreased desolvation energy from 4.16 to 3.49 kJ mol−1 and 24.74 to 16.55 kJ mol−1 beyond and below −20 °C, respectively, compared with that in 1.0 M NaPF6-G2. These enable the cell of Na||Na3V2(PO4)3 to deliver 60.2% of its room-temperature capacity and high capacity retention of 99.2% after 100 cycles at −40 °C. This work highlights regulation of solvation chemistry for highly stable sodium-ion batteries at low temperature.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2020
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IF 7.489
Guangyuan Du,Mengli Tao,Dingyu Liu,Muhammad Kashif Aslam,Yuruo Qi,Jian Jiang,Yutao Li,Shu-juan Bao,Maowen Xu
Quasi - solid-state potassium-ion batteries (QSPIBs) are regarded as one of the most promising safety-enhanced energy storage devices. Herein, a facile method for preparing a potassium-ion composite electrolyte membrane on a large scale is presented for the first time. The as-synthesized membrane displays excellent electrochemical stability, good mechanical flexibility, and high ionic conductivity (9.31 × 10 -5 S cm −1 at 25 °C). Furthermore, QSPIBs prepared with this membrane and commercial raw material-based electrodes show superior electrochemical performance even at low temperatures (99.7 mAh g −1 at −20 °C for half QSPIBs and 90.7 mAh g −1 at −15 °C for full QSPIBs), and a promising rate performance (115.6 mAh g −1 for half QSPIBs and 90.9 mAh g −1 for full QSPIBs at 800 mA g −1 ). The reaction mechanism and structure evolution of a 3,4,9,10-perylene-tetracarboxylicacid-dianhydride (PTCDA) cathode is also systematically studied. The promising characteristics of the prepared low-cost quasi-solid-state potassium-ion batteries in this work open up new possibilities for safer and more durable batteries and a wide range of practical applications in the electronics industry.
研究领域:
材料科学
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能源存储技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2021
·
IF 9.676
Shun Li,Zhendong Li,Liyuan Huai,Mingming Ma,Kailin Luo,Jiahe Chen,Deyu Wang,Zhe Peng
Lithium (Li) metal is considered as one of the most promising anode materials to build next-generation high-energy–density batteries. Nonetheless, dendritic Li deposition has dramatically hindered the practical applications of Li metal batteries (LMBs). Uniformizing Li deposition is a prerequisite to achieve safe and practical LMBs. Herein, an underpotential deposition (UPD) process is first proposed to alter the kinetic and uniformity of Li deposition morphology. Based on the strong interaction between the Li adatoms and manganese (Mn) based substrate, a competition between the UPD and bulk Li deposition is observed, on which the predominance of the UPD scenario tends to uniformize Li nucleation and deposition by the surface coverage of Li monolayers at potentials that are more positive than the Nernst potential of Li metal. Inspired by this process, an advanced hybrid Mn-graphene oxide structure is developed for Li protection, not only enabling dendrite-free Li anodes for high-capacity and -current density cycling, but also improving the interfacial kinetic of Li metal anodes at subzero temperatures, showing potential applicability in low temperature conditions.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2023
·
IF 13.1
Shuo Yang,Kui Xue,Haiyang Liao,Yuning Guo,Liujiang Zhou,Yongqi Zhang
Aqueous Zinc-based energy storage devices are considered as one of the potential candidates in future power technologies . Nevertheless, poor low temperature performance and uncontrollable Zn dendrite growth lead to the limited energy storage capability. Herein, an anti-hydrolysis, cold-resistant, economical, safe, and environmentally friendly electrolyte is developed by utilizing water, ethylene glycol (EG), and ZnCl 2 with high ionic conductivity (7.9 mS cm −1 in glass fiber membrane at −20 °C). The spectra data and DFT calculations show the competitive coordination of EG and Cl - to induce a unique solvation configuration of Zn 2+ , conducive to effectively inhibiting the hydrolysis of Zn 2+ , suppressing the dendrite growth, and broadening the working voltage range and temperature range of ZnCl 2 electrolyte. The isotope tracing data confirm that Cl - could effectively destroy the ZnO passivation film, promoting the formation of Zn nuclei and improving its reaction activity. Compared to the corresponding ZnSO 4 electrolyte, the Cu/Zn half-cell with the ZnCl 2 electrolyte exhibits a stable cycle life of more than 1600 h at −20 °C, even at the current density of 5 mA cm −2 . The assembled Zn-ion hybrid capacitor possesses an average capacity of 42.68 mA h g −1 under −20 °C at a current density of 5 A g −1 , 3.5 times than that of the modified ZnSO 4 electrolyte. Our work proposes a new approach for optimizing aqueous electrolytes to meet low temperature energy storage applications .
研究领域:
能源存储技术
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材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2022
·
IF 10.53
Jia Yang,Xiaoyi Hu,Xiaohan Fang,Lidan Fan,Gang Qin,Ziyue Zhang,Jingyi Xu,Ye Liang,Qiang Chen
To meet the practical application requirements of the flexible supercapacitors , the improvements of the toughness and energy density attract more and more attention. Herein, a physically cross-linked double network alkaline gel polymer electrolyte (AGPE) membrane based on PVA and kappa-carrageenan is developed. In this AGPE membrane, KOH plays a dual role including carrier donator and ion cross-linker, which makes the AGPE membrane show the unique improvement of ionic conductivity (0.31 S/cm) and mechanical properties (tensile strength of 1.62 MPa and tensile elongation of 670%) at the same time. In order to improve energy density, the redox-active mediator p-phenylene diamine has been introduced in the AGPE membrane, endowing the fabricated supercapacitor with high electrode specific capacitance (741 F/g) and energy density (18.3 Wh/kg) with a maximum power density of 800 W/kg. Meanwhile, the supercapacitor can exhibit great flexibility and toughness, and maintain stable capacitance performance under bending and stretching state. Moreover, the supercapacitor shows an excellent low temperature resistance and it is able to maintain 82% of its room-temperature capacitance even at -40 °C. This investigation offers a strategy to prepare gel polymer electrolyte membrane with high adaptive ability of deformation and low temperature, which has potential application in various flexible, portable and wearable electronics.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2023
·
IF 4.2
Shuainan Zhao,Haijun Ji,Jie Yu,Rui Wang,Liqun Zhang,Runguo Wang
A series of green poly(isoprene-co-myrcene) (PIMy) elastomers were designed and prepared by coordination polymerization to solve the fossil shortage and achieve an excellent low-temperature resistance property. The properties of PIMy could be tailored upon varying the comonomer feed ratios. The structure and thermal stability were investigated by NMR, differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA) analyses. The cis-1,4 structure content of PIMy exceeded 95%, and the Tg of PIMy was below −60 °C without crystallization at low temperatures. With the increase of myrcene content, the tensile strength of PIMy/silica nanocomposites decreased, the wet skid resistance was improved, and PIMy with myrcene content of 5–20 mol % had better comprehensive properties. The introduction of PIMy in solution-polymerized styrene–butadiene rubber (SSBR) increased the tan δ value at −20 °C and improved the ice skid resistance performance. The Laboratory Abrasion Tester (LAT-100) test results showed that the addition of PIMy significantly improved the friction of SSBR on the ice surface with a maximum improvement of 161%. The PIMy prepared in this study is expected to be used in low-temperature-resistant rubber products such as seals and winter tires.
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
ELECTROCHIMICA ACTA
·
2023
·
IF 6.6
Chao Xu,Congwei Wang,Kun Zhang,Xinglin Luo,Gang Li
Hierarchical microstructures are unique characteristic in various natural organisms with optimized functions. The anisotropic structure offers low-tortuosity with hierarchical porosity, providing sufficient multifunctional channels for mass/ion transport, which is desirable for the design of low temperature tolerant energy storage device. Conductive hydrogels are elastic crosslinked polymeric networks that adaptable in various environmental conditions, exhibiting promising potentials for energy storage and conversion devices. However, conventional hydrogel based energy storage devices would inevitably freeze at low temperatures (< 0 °C) due to the high content of solvent water, which fundamentally lead to the fatal deterioration of the ionic conductivity and limit their applications in extreme conditions. In this paper, a flexible solid-state supercapacitor was prepared using wood inspired anisotropic polyvinyl alcohol (PVA) hydrogel electrolyte via directional freezing strategy. The hierarchical channels are tuneable by varying the concentrations of PVA solutions. The ionic conductivity of hydrogel electrolyte was significantly enhanced in the full temperature range attributing to the hierarchical microstructures, specifically, the microscale vessel-like directional ion transport channels coupled with nanopores on the inner walls. With co-mixing of dimethyl sulfoxide/ethylene glycol as the organic solvent medium, the assembled solid-state supercapacitors exhibited excellent electrochemical performance of 65% capacity retention at -30 °C, remarkably flexibility and decent cycling stability of 75% capacity retention after 5000 cycles at -20 °C. This work demonstrates that the hierarchical anisotropic channels and organic anti-frozen additive could significantly enhance the low temperature performance of solid-state supercapacitors, opening up new strategy for advancing energy storage devices at extreme conditions via the bio-mimicked optimization of microstructure and electrolyte composition .
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-8
·
IF 14.7
Geng Shitao,Zhao Xiaoju,Xu Qiuchen,Yuan Bin,Wang Yan,Liao Meng,Ye Lei,Wang Shuo,Ouyang Zhaofeng,Wu Liang,Wang Yongyang,Ma Chenyan,Zhao Xiaojuan,Sun Hao
Rechargeable calcium (Ca) metal batteries are promising candidates for sustainable energy storage due to the abundance of Ca in Earth’s crust and the advantageous theoretical capacity and voltage of these batteries. However, the development of practical Ca metal batteries has been severely hampered by the current cathode chemistries, which limit the available energy and power densities, as well as their insufficient capacity retention and low-temperature capability. Here, we describe the rechargeable Ca/Cl 2 battery based on a reversible cathode redox reaction between CaCl 2 and Cl 2 , which is enabled by the use of lithium difluoro(oxalate)borate as a key electrolyte mediator to facilitate the dissociation and distribution of Cl-based species and Ca 2+ . Our rechargeable Ca/Cl 2 battery can deliver discharge voltages of 3 V and exhibits remarkable specific capacity (1000 mAh g −1 ) and rate capability (500 mA g −1 ). In addition, the excellent capacity retention (96.5% after 30 days) and low-temperature capability (down to 0 °C) allow us to overcome the long-standing bottleneck of rechargeable Ca metal batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
FUEL
·
2024
·
IF 6.7
Jingjiang Yang,Yifan Wang,Yanbo Liu,Gaigai Duan,Zhao Liang,Jingquan Han,Yong Huang,Xiaoshuai Han,Chunmei Zhang,Shuijian He,Shaohua Jiang
Hard carbon (HC) anodes for lithium-ion batteries (LIBs) have become more promising anode materials due to their high capacity, excellent capacity retention, superior cycling stability, low operating potential and mild electrode expansion. However, the compatibility of commonly used carbonate-based electrolytes in HC anode systems has rarely been investigated. Here, we systematically investigate the effects of the two most commonly used major components in electrolyte systems, ethylene carbonate and propylene carbonate, on the HC anode of LIBs, including the cycling performance, Li + transport kinetics, and electrolyte–electrode interface composition. The results show that the propylene carbonate system possesses better cycling stability and kinetics in HC anodes for LIBs. Especially at low temperatures, the propylene carbonate system exhibited high-capacity retention (57.7 % at −20 °C and 24.1 % at −40 °C). Mechanistic studies reveal that Li + possess lower solvation energy in propylene carbonate, which can be easily separated from the solution to participate with the charging and discharging process. Moreover, due to the lower freezing point of propylene carbonate (−48.8 °C), PC-electrolyte based LIBs deliver good low temperature cycling stability. This work will provide guidance for the selection and design of HC anodes and electrolytes for LIBs in the near future.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）